GOSSEN METRAWATT R2500 Compact Controllers and Temperature Limiters Instruction Manual
- June 12, 2024
- GOSSEN METRAWATT
Table of Contents
R2500 Compact Controllers and Temperature Limiters
Product Information
Product Name: R2500 Compact Controllers and
Temperature Limiters
Manufacturer: Gossen Metrawatt GmbH
Model Number: R2500
Controller Type: Compact controller, 48 x 48
mm, IP 67, with self-tuning, 2nd setpoint and 2 alarms, hot-runner
functions, data logger, alarm history, program controller, infrared
interface
Outputs:
-
Two-step, three-step, step-action controller with 2 transistors
and 2 relays -
Two-step, three-step, step-action controller with 2 transistors
and 3 relays -
Continuous, split range controller, discontinuous action
controller with 1 continuous output, 1 transistor output, and 3
relay outputs
Measuring Ranges:
- Thermocouple Type J, L: 0 … 900 °C / 32 … 1652 °F
- Thermocouple Type K, N: 0 … 1300 °C / 32 … 2372 °F
- Thermocouple Type R, S: 0 … 1750 °C / 32 … 3182 °F
- Thermocouple Type B: 0 … 1800 °C / 32 … 3272 °F
- Thermocouple Type C: 0 … 2300 °C / 32 … 4172 °F
- Thermocouple Type E: 0 … 700 °C / 32 … 1292 °F
- Thermocouple Type T: 0 … 400 °C / 32 … 752 °F
- Thermocouple Type U: 0 … 600 °C / 32 … 1112 °F
- Resistance thermometer Pt100: 0 … 340 Ohm
- Resistance thermometer Ni100: 0 … 50 mV
Feature: Measurement input: configurable
standard signal (0 / 2 … 10 V or 0 / 4 … 20 mA)
Auxiliary Voltage: 85 … 265 V AC, 48 … 62
Hz or 20 … 30 V DC
Extras: Heating current monitoring, RS 485 data
interface
Configuration: Default settings or configured
per customer requirements
Languages: German, English, Italian, French
Product Usage Instructions
-
Read the operating instructions completely and carefully before
using the device. -
Make sure that the operating instructions are available to all
users of the instrument. -
If the device is exposed to extreme conditions (e.g. humidity,
dust, or extreme temperature), remove it from operation and secure
it against unintentional use. -
No special maintenance is required for the housing. Keep
outside surfaces clean using a slightly dampened cloth. Avoid the
use of solvents, cleansers, and abrasives. -
Repair and replacement of parts should only be carried out by
trained personnel who are familiar with the associated
dangers. -
If repair or parts replacement service is required, please
contact Gossen Metrawatt GmbH or their
representatives/subsidiaries.
Operating Instructions
R2500
Compact Controllers and Temperature Limiters
3-349-374-03 20/7.22
Contents
Page Contents
Page
Safety Features and Precautions …………………………………………………4 Maintenance ………………………………………………………………………….5 Repair and Replacement Parts Service …………………………………………5 Product Support Industrial Division ………………………………………………5 Device Identification ………………………………………………………………..6 Mechanical Installation / Preparation …………………………………………..8 Electrical Connection ………………………………………………………………8 Operation ……………………………………………………………………………10 Disabling Modifications …………………………………………………………..11 Performance After Activating Auxiliary Voltage …………………………….11 Operating Flow Chart …………………………………………………………….12 Automatic Operation / Off ……………………………………………………….13 Manual / Automatic Selection ………………………………………………….13 Controller Types ……………………………………………………………………19 Conversion of Parameter Sets ………………………………………………….20 Backup Functions ………………………………………………………………….20 PI Performance ……………………………………………………………………..20 Extra derivative action for cooling ………………………………………………20 Configuring the Switching Outputs and the Continuous Output ………..21 Relay Outputs for Actuating Signals …………………………………………..21 Actuator Output for Contactor …………………………………………………..22 Water Cooling ………………………………………………………………………22 Configuration of the Controller with Continuous Output ………………….22 Setpoint Ramps …………………………………………………………………….23
Suppression of Periodic Disturbances ………………………………………. 23 Adaptive Measured Value Correction ………………………………………… 24 Hot-Runner Control ………………………………………………………………. 25 Feed-Forward Control …………………………………………………………… 26 Parameters Configuration ………………………………………………………. 27 Program Controller ……………………………………………………………….. 29 Program Entry …………………………………………………………………….. 31 Manual Optimization …………………………………………………………….. 33 Self-Tuning ……………………………………………………………………….. 37 Balancing …………………………………………………………………………… 38 Limit Value Monitoring …………………………………………………………. 39 Limiter ………………………………………………………………………………. 39 Heating Current Monitoring …………………………………………………….. 40 Heating Circuit Monitoring ……………………………………………………… 41 Alarm History ………………………………………………………………………. 42 Data Logger ……………………………………………………………………….. 42 Error Messages …………………………………………………………………… 43 Error Acknowledgement ………………………………………………………… 44 Error mask …………………………………………………………………………. 45 Replacing an R2400 Controller with an R2500 Controller ……………… 47 Technical Data …………………………………………………………………….. 49 ……………………………………………………………………………………….. 50
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Meanings of Symbols on the Instrument
Indicates EC conformity
Continuous doubled or reinforced insulation
Warning concerning a point of danger Attention: observe documentation!
Functional earth terminal, earthing for functional purposes only (no safety
function)
The device may not be disposed of with the trash. Further information
regarding the WEEE mark can be accessed on the Internet at
www.gossenmetrawatt.com by entering the search term WEEE.
R2500 4
Safety Features and Precautions
The R2500 controller is manufactured and tested in accordance with safety
regulations IEC 61010-1 / DIN EN 61010-1 / VDE 0411-1. If used for its
intended purpose, the safety of the user and the device is assured. Read the
operating instructions completely and carefully before using the device,
Follow all instructions contained therein. Make sure that the operating
instructions are available to all users of the instrument.
Observe the following safety precautions: The device may only be connected
to an electrical system which
complies with the specified nominal range of use (see circuit diagram and
serial plate), and which is protected with a fuse or circuit breaker with a
maximum nominal current rating of 16 A. The installation must include a
switch or a circuit breaker which serves as a disconnecting device.
The controller may not be used: If it demonstrates visible damage If it no
longer functions flawlessly After long periods of storage under unfavorable
conditions (e.g.
humidity, dust or extreme temperature) In such cases, the instrument must be
removed from operation and secured against unintentional use.
Maintenance
Housing No special maintenance is required for the housing. Keep outside
surfaces clean. Use a slightly dampened cloth for cleaning. Avoid the use of
solvents, cleansers and abrasives.
Repair and Parts Replacement Repair and replacement of parts conducted at a
live open instrument may only be carried out by trained personnel who are
familiar with the dangers involved.
Repair and Replacement Parts Service
If required please contact:
GMC-I Service GmbH Service Center Beuthener Straße 41 90471 Nürnberg, Germany
Phone +49 911 817718-0 Fax +49 911 817718-253 E-Mail
service@gossenmetrawatt.com www.gmci-service.com
Return and Environmentally Sound Disposal The R2500 is a category 9 product (monitoring and control instrument) in accordance with ElektroG (German electrical and electronic device law). This device is subject to the WEEE directive. Furthermore, we make reference to the fact that the current status in this regard can be accessed on the Internet at www.gossenmetrawatt.com by entering the search term WEEE. We identify our electrical and electronic devices in accordance with WEEE 2012/19/EU and ElektroG with the symbol shown at the right per DIN EN 50419. These devices may not be disposed of with the trash. Please contact our repair and replacement parts service department regarding the return of old devices.
This address is only valid in Germany. Please contact our representatives or
subsidiaries for service in other countries.
Product Support Industrial Division
If required please contact:
Gossen Metrawatt GmbH Product Support Hotline Industrial Division Phone: +49
911 8602-500 Fax: +49 911 8602-340 E-Mail:
support.industrie@gossenmetrawatt.com
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Device Identification
Feature
Compact controller, 48 x 48 mm, IP 67, with self-tuning, 2nd setpoint and 2 alarms, hot-runner functions, data logger, alarm history, program controller, infrared interface
Controller Type
Outputs
Two-step, three-step, step-action controller
2 transistor, 2 relay
Two-step, three-step, step-action controller
2 transistor, 3 relay
Continuous, split range controller, discontinuous action controller
1 continuous, 1 transistor, 3 relay
Measuring Ranges
Configurable measurement input
Thermocouple
Type J, L
0 … 900 C /
32 … 1652 F
Type K, N
0 … 1300 C /
32 … 2372 F
Type R, S
0 … 1750 C /
32 … 3182 F
Type B
0 … 1800 C /
32 … 3272 F
Type C
0 … 2300 C /
32 … 4172 F
Type E
0 … 700 C /
32 … 1292 F
Type T
0 … 400 C /
32 … 752 F
Type U
0 … 600 C /
32 … 1112 F
Resistance thermometer Pt100
200 … 600 C / 328 … 1112 F
Ni100
50 … 250 C / 58 … 482 F
Ohm
0 … 340
Linear
0 … 50 mV
R2500 6 Designation
R2500 A1 A2 A5
B1
Feature Measurement input: configurable standard signal
0 / 2 … 10 V or 0 / 4 … 20 mA Auxiliary Voltage 85 … 265 V AC, 48 … 62 Hz 20 …
30 V DC Extras Heating current monitoring RS 485 data interface Configuration
Default settings Configured per customer requirements Operating Instructions
German English Italian French None
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Designation B2
C1 C2 E0 E1 K0 K9 L0 L1 L2 L3 L4
R2500 7
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Mechanical Installation / Preparation
48 48
104 119
5
R2500 8
behind at the top and bottom with the two included snap retainers. Several
devices can be mounted next to each other without separators at the side.
In general, unobstructed air circulation must be assured when one or several
devices are installed. The ambient temperature underneath the devices may not
exceed 50 C. In order to assure IP 67 protection, an appropriate seal must be
installed between the device and the panel.
45+0.6
45+0.6
Figure 1: Housing Dimensions and Panel Cutout
The R2500 controller is intended for installation to a control panel. The
installation location should be vibration-free to the greatest possible
extent. Aggressive vapors shorten the service life of the controller.
Requirements set forth in VDE 0100 must be observed during the performance of
all work. Work on the device may only be carried out by trained personnel who
are familiar with the dangers involved. Set the housing into the panel cutout
from the front, and secure it from
Electrical Connection
Connectors: screw terminals for wire with 1.5 square mm cross-section or two-
core wire-end ferrules for 2 0.75 square mm
1
12
2
12
3
14
4
15
5
15
6
16
7
17
8
18
9
19
10
20
Figure 2: Connector Terminal Positions
Attention: to ensure radio interference suppression, the protective conductor and/or control cabinet grounding must be connected to terminal 13.
Binary Input
Transistor Output
Cont. Output
Auxiliary Voltage
A1, A2, A5
A5
C1
C2
1
1
11 L
110 / 230 V AC 24 V DC
2
2
20 mA / 10 V
12 N
3
+ out1
3+
13
4
+ out2 + out2 4
14
5
20 mA
6
10 V
7
5
15
out 1
6
16
7
17
8
A
9
B
10
C
8
18
A2
9
19
A1
10
20
B1
B2
Sensor
E0
Heating Current Transformer
E1 RS 485
Relay Outputs
A2, A5
Relay Output
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Operation
Figure 3: Controls
Actual value Setpoint / heating current / manipulating factor (operating
level)
Setpoint 2 active Manual operation
Switch displays, levels and values (see operating flow chart) Reduce value /
increase value
R2500 10
Switching output for heating active Switching output for cooling active Alarm
1 active Alarm 2 active Infrared interface Select: Off/manual automatic
operation
Setting Values with the Up and Down Scroll Keys At the operating level, the setpoint can be adjusted within a range extending from the minimum to the maximum setpoint. Configuration and parameter settings can be changed if password protection has not been activated, or if the correct password has been entered. In order to avoid erroneous settings, changes must be acknowledged within 5 seconds with the key. The change can be discarded by pressing the key.
Disabling Modifications
The default setting (PSEt = dEF) allows for modification of all parameters and
configurations. The following settings can be used in order to disable the
entry of changes: Disabling Setpoint Changes The setpoint can only be adjusted
between its minimum and maximum values. The SPL and SPH parameters must be set
accordingly. Disabling Changes to Parameters and Configurations After password
protection for device operation has been activated (PASS not equal to diS),
changes can only be made after the correct password has been entered. However,
changes are always possible via infrared or bus interface! Disabling Self-
Tuning Starting self-tuning by pressing the corresponding keys can be
separately disabled with the configuration tunE = diS. However, self-tuning
can always be started via infrared or bus interface!
Performance After Activating Auxiliary Voltage
LED Segment Test
U/M
Designations
Actual Value
Approx. 1.5 s
Approx. 1.5 s
Approx. 1.5 s
Firmware Version
Setpoint or oFF
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Operating Flow Chart
Operating Level
Automatic Operation
Actual
Actual Setpoint
Actual Ht. Current
Actual Man. Factor
Actual
Setpoint can only be set here
Parameter Level (page 27)
With heat current monitoring only
Configure (page 14)
With program controller only
Program Controller
Param. Value *
Configuration *
Program
Param. Value
Configuration
Program
Press key briefly.
Press and hold key until display switches.
Press and hold both keys until display switches.
*) If password protection for device operation is activated (configuration: PASS = EnA ), the correct password must be entered in order to change values. Otherwise -no- appears at the display if an attempt is made to change a value.
Automatic Operation / Off
Operating Level
No alarm function No indication of errors
Off Actual
The controller can be deactivated by pressing and holding the is configured to on/off.
key, if it
Manual / Automatic Selection
Alarm function and error indication identical to automatic operating mode.
The actuator outputs are controlled with the scroll keys and not by the controller function.
Switching between manual and automatic modes is bumpless in both directions.
PDPI controller: The manipulating factor is displayed as a percentage. Value
changes are forwarded immediately to the control outputs.
Step-action
controller:
The switching outputs can be adjusted directly with “more” or
“less” by pressing the up and down scroll keys.
Operating Level Manual Operation
Actual Man. Factor
If the key is configured to manual / automatic
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Configuration
+ press and hold simultaneously
Configuration
Display
Sensor type
SEnS
U/M Input quantity
Controller type
SEnS SEnS
COut
R2500 14
Selection
tYP.j tYP.L tYP.K tYP.b tYP.S tYP.r tYP.n tYP.E tYP.t tYP.v tYP.C tYP.Pt 1 ni 1 ni12 rES 0HM Lin
Types J L K B S R N E T U C Pt100 Ni100 Ni120 Resistor in Voltage in mV
1°C, 1°F, 01. °C, 01. °F
0 – 20 / 4 – 20 dead / live zero
MEAS P0W 0n0F PdP1 ProP
Measure only Actuator Limit transducer 2/3 step, step-action, split range Proportional actuator
Standard
Type J
1°C 0 – 20 PdPI
Comment
Not with standard signal
With standard signal only See page 19
Configuration Derivative action
Binary input
Binary input
Display tu 11
1n 1
1n
Selection
dis / ena
phlt prun oFF SP 2 LooP HAnd tunE Quit FEF0 StvP booS LoGG Dark set2 baCk
stat dyn
Standard
/ Extra derivative action for cooling diS
Pause program controller
Start/stop program controller
No function
Setpoint 2 active
Controller on
Manual operation
Start self-tuning
Clear limit value error
SP 2
Feed-forward control
Start-up active
Start boosting
Data logger recording
Display darkl
Parameter set conversion
Backup function
Binary input dynamic, switching by key
StAt
Comment only with 3-step controllers
The function of the binary input has precedence over operation and
configuration.
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Gossen Metrawatt GmbH Configuration
Display
out1 switching output
0ut1
out2 switching output Switching output selection
Continuous Output
Continuous output Alarm 1 Alarm 2
0ut 2 0ut
Cont
Cont A 1 A 2
Selection
Standard
tr2 tr1 phlt prun oFF HEAt
CooL
H20 Hclo Cclo Hotr 1ndu al1l
Controller 2
Controller 1
Program pause
Program running
No function
Heater, more heat
with step-action controller
Cooling, more cooling
HEAt
with step-action controller
Water cooling
Less heat w. step-action controller
Less cooling w. step-action controller
Hot-runner heat
Induction heating
1st lower limit value
Same as out1 switching output
oFF
nor
As configured
xCh
Outputs out1 and out2
nor
exchanged with A1 and A2
oFF HEAt
CooL Proc SP
No function
Heater,
Cooling,
oFF
Current controlled variable
Current setpoint
0 – 20 / 4 – 20 Dead / live zero 20-0 / 20-4 dead / live zero invers
0 – 20
noc / ncc Operating current / idle current noc
noc / ncc Operating current / idle current noc
R2500 16 Comment
See page 21
See page 21 See pages 21 and 22, only if a continuous output is present
(designation A5) See page 39
Configuration Channel error mask A1 Device error mask A1 Channel error mask A2 Device error mask A2 Alarm 1 Alarm 1 Alarm 1 Alarm 2 Alarm 2 Alarm 2 Limiter Heating circuit monitoring Adaptive measured value correction Actuator output for contactor PI performance Manual key function Start self-tuning
Display
A1M1 A1M2 A2M1 A2M2 AL 1 AL 1 AL 1 AL 2 AL 2 AL 2 L1M LbA AMC rELA p1 HKEY
tune
Setpoint staircase
sp
Actuation inactive
Stvp
Selection
def / 1 … 3FFF
0 … 03FF
0 … 3FFF
0 … 03FF
rEL / AbS Relative / absolute
nSvP / SvP Start-up inhibiting off / on
nSto / Stor Alarm memory off / on
rEL / AbS Relative / absolute
nSvP / SvP Start-up inhibiting off / on
nSto / Stor Alarm memory off / on
no / yes
no / yes
no / yes
no / yes
no / yes
oFF / HAnd
EnA / diS Enable / disable
ramp step
Setpoint ramp Setpoint staircases, configurable with SPuP, SPdn and t SP
no / yes
Standard def 0 0 0 rEL nSUP nSto rEL nSUP nSto no no no no no oFF EnA
rAMP
no
Comment
see page 45
See page 39
See page 39 See page 41 See page 24 See page 22 See page 20 See page 13 See
page 37 only for program controller See page 25
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Display
Bus protocol
Prot
Baud rate Interface address Data logger recording Alarm History Program controller Password for operation 1)
bAUd Addr logg h1st prog PASS
Device settings, parameter set
pset
- Universal key = 42
Selection
r260 Mod r217 hbth
9.6 / 19.2
0 … 255
no / yes
no / yes
EnA / diS
EnA / diS
Act dEF GEt1 GEt2 GEt3 GEt4 Put1
Put2 Put3 Put4
DIN 19244 E same as R2600 Modbus DIN 19244 E same as R0217 HB-Therm
Enable / disable Enable / disable Retain active configuration Load default
settings Load user configuration 1 … … Load user configuration 4 Save active
configuration as user configuration 1 … … Save active configuration as user
configuration 4
Standard r260
9.6 250 no no diS diS
Act
R2500 18 Comment With bus interface only
Not with DIN protocoll With bus interface only
See pages 11 and 12
Configuration per customer specification (K9) is saved to the user settings.
All settings are overwritten during loading!
Controller Types
Controller Type Measure (Cout = MEAS) Actuator (Cout = POW) Limit transducer
(Cout = OnOF)
PDPI controller and PDPI step-action controller (Cout = PdPI )
Proportional actuator (Cout = ProP)
Applications This configuration is intended for temperature monitoring. Limit value monitoring can be configured. System deviation is not used for any other purposes. Same as controller type 1 (measure) In addition, the actuator manipulating factor is read out with the actuating cycle. The maximum manipulating factor is read out if the actual value is less than the momentary setpoint. The minimum manipulating factor is read out if the actual value is greater than the momentary setpoint plus the dead zone. Switching hysteresis is adjustable, and status changes are possible after each actuating cycle. Actuating cycle time is used as a time constant for an additional input filter. The PDPI control algorithm assure short settling time without overshooting. The actuating cycle is at least as long as the selected value. The dead band inhibits switching back and forth between “heating” and “cooling” if no lasting deviation occurs. Selection of these two controller types, namely PDPI and PDPI step-action controller, defines the controller itself on the basis of the output configuration. The control variable is proportional to system deviation, and a statistical dead zone can be adjusted at the cooling side. Actuating cycle time is used as a time constant for an additional input filter. This controller type is not intended for temperature regulation, because it does not demonstrate the dynamics required for control without overshooting.
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Conversion of Parameter Sets
If the binary input is configured to parameter set conversion (SEt2 ), parameter set 2 is loaded when the contact is closed, and paramter set 1 is loaded when the contact is open. The active configuration is overwritten in each case. The W2 LED lights up when parameter set 2 and/or 3 is active.
Backup Functions
If the binary input is configured to backup function (bACK), the momentary
actual value is adopted as setpoint value when the contact is closed. Control
is inactive and the manual operation LED lights up. When the contact is open,
control is effected with the adopted setpoint value according to
configuration.
PI Performance
The differential component of the PDPI controller type can be attenuated to
such an extent by activating PI performance (configuration: PI = YES) that
practically no more derivative action occurs. As opposed to a pure PI
controller, response to setpoint changes can be configured without
overshooting. This setting is advisable for control systems which include true
delay time.
Extra derivative action for cooling
In controlled systems in which cooling has much better or worse thermal
contact than heating, control performance for a cooling work point can be
improved by setting the tu II configuration to EnA. This makes it possible to
set the delay time for cooling (parameter tu II ) independently. In the case
of water cooling, half the derivative action is automatically used for cooling
when configuration tu II = diS has been selected.
Configuring the Switching Outputs and the Continuous Output
Switching output out1 is configured with a 2-step heating controller as a
standard feature (relay or transistor output, depending upon variant). Control
performance (2-step heating or cooling, 3-point discontinuous, step-action
controller, continuous-action controller, split range controller) is
determined by the configuration selected for the actuating outputs. See also
the “Configuration” table on page 16. Actuators for heating and cooling are
selected independent of each other. If 2-step control is required, heating
and cooling outputs may not be configured simultaneously for the respective
controller. Both switching outputs can be assigned to the same controller
output for separate control of several actuators with a single controller
output. If a continuous and a discontinuous output are both configured for
heating (or cooling) at the same time, the channel performs like a
continuous-action controller and the discontinuous output is inactive. If,
inadvertently, only one “Less” output is configured for heating (or cooling),
it remains inactive. Settings can be freely combined regardless of
controller type.
Relay Outputs for Actuating Signals
If two relay outputs are required for the actuating signals, for example in
the case of three-step or step-action control, the alarm outputs can be
exchanged with the actuator outputs. The Out = XCh configuration (see page 16)
exchanges the functions of out1 with A1 and out2 with A2.
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Actuator Output for Contactor
If, during ascertainment of control parameters (manual optimization or self- tuning), a cycle time results which is significantly shorter than advisable for the service life of the contactor, cycle time can be increased to the limit of system controllability by configuring the actuating outputs for contactor control (rELA = YES). If the bit is set before self-tuning is started, cycle time is set to the highest possible value by the self-tuning function.
Water Cooling
In order to account for the disproportionately powerful cooling effect which
prevails when water is evaporated, the cooling control variable can be read
out in a modified fashion by configuring the switching output for water
cooling (Outx = H2O).
Configuration of the Controller with Continuous Output
Switching back and forth between current output and voltage output is
automatic based upon load impedance.
Continuous output = heating or cooling
Cont = HEAt or CooL
The manipulated variable is read out within a range of 0 to 100% depending upon controller type.
Continuous output = controlled variable or setpoint Cont = Proc or SP The momentary controlled variable of the currently valid setpoint is read out. The read-out is scaled with the rnL and rnH parameters.
Setpoint Ramps
Function
Setpoint display Limit values
The parameters SPuP / SPdn cause a gradual temperature change (rising / falling) in degrees per minute. Activated by: Switching auxiliary power on Changing the momentary setpoint, activating setpoint 2 Switching from manual to automatic operation The targeted setpoint is displayed (not the currently valid setpoint) with a blinking r at the left-hand digit. Relative limit values make reference to the ramp, not the targeted setpoint. As a rule, no alarm is triggered for this reason.
Suppression of Periodic Disturbances
If the measured value is superimposed with highly periodic oscillation which,
for example, occurs due to cyclical withdrawal of energy from the control
loop, the manipulated value may fluctuate between its extreme values resulting
in unsatisfactory control results.
If the period is constant, this oscillation can be filtered out by setting the period in the oscillation suppression tSUP parameter. This is accomplished by means of narrow-band filtering in order to remove the signal component with the selected period, which is then disregarded for measuring signal control. The actual values for the display are not influenced. As opposed to adaptive measured value correction (see also page 24), oscillation can also be suppressed with this function whose periods are greater than half of the system’s delay time.
Periods can be selected within a range of 0.3 to 25 seconds, and the filter remains inactive for other setting values.
Due to the fact that this suppression filter influences control dynamics, ascertainment of control parameters by means of self-tuning or manual optimization has to be performed while oscillation suppression is active.
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Adaptive Measured Value Correction
If a control loop is interfered with by periodic disturbance of the actual value, control can be improved by activating adaptive measured value correction. Periodic disturbance is thus suppressed, without impairing the controller’s ability to react to system deviations. Correction is adapted to the oscillation amplitude of the disturbance to this end, and only the mean value is forwarded to the controller.
Adaptation of correction to the disturbance is matched to prevailing control dynamics and requires no further parameters.
Prerequisites for improved control: The oscillation amplitude of the disturbance must be constant, or may only change slowly. The oscillation period must be less that half of the system’s delay time (parameter tu).
Due to the fact that correction greatly influences actual value ascertainment, control may also be worsened, for example if: Measured value deviations are irregular Individual measured value outliers occur Fluctuation is not periodic The disturbance is noise-like
Hot-Runner Control
By configuring the switching output for heating as a hot runner (Outx = Hotr),
the manipulated variable is read out as a rapidly pulsating signal, i.e.
actuation cycle time is 0.1 seconds regardless of the actuation cycle time
parameter setting. With the help of this configuration, the start-up circuit
and boost functions are also enabled.
Start-Up Circuit
The start-up circuit is enabled with the StUP = YES configuration, or by means of the binary input when it has been configured as follows: In1 = StUP.
The start-up circuit is only enabled for controller type PDPI. No start-up occurs for other controller types.
The start-up procedure is initiated if the actual value is more than 2 °C less than the start-up setpoint after auxiliary voltage is turned on (reset)
or after the off state has been ended,
or if the actual value drops to more than 40 °C less than the start-up setpoint after a start-up procedure has
been completed or during dwell time.
Start-up continues
until the actual value exceeds the start-up value minus 2 °C.
The control variable is limited to the start-up manipulating factor.
Dwell time then begins,
which is selected with the dwell time parameter.
The controller regulates temperature to the actuation setpoint.
The actuation procedure is ended as soon as dwell time has expired.
The controller then regulates temperature to the valid setpoint.
If the currently valid setpoint is still so far beneath the start-up setpoint that the condition for ending actuation cannot be fulfilled, the start-up procedure
continues indefinitely. In this case, control variable limiting by means of maximum manipulating factor would be advisable.
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Temporary Setpoint Increase (boosting)
Temporarily increasing the setpoint in the hot-runner control mode can be used to free clogged mold nozzles of “frozen” material remnants.
This procedure is triggered by bit 3 of the controller function, which is set via the interface, keyboard or the binary input. The binary input must be con-
figured as follows to this end: In1 = booS. If the binary input is not used to this end, setpoint increase is activated or stopped by simultaneosly pressing
and holding the keys
. Boosting is ended by clearing this bit, or is stopped automatically after maximum boosting time has elapsed.
The relative increase is saved to the setpoint increase parameter, and the maximum duration of the increase is saved to the boost time parameter.
The increase effects the setpoint or setpoint 2 only, and has no influence on the start-up setpoint or the ramp function. The setpoint value, and not the
increase, is indicated with a b in the left digit.
Feed-Forward Control
When configured as a discontinuous or continuous-action controller (not as a
step-action controller) control quality can be significantly improved by means
of feed-forward control where abrupt load fluctuations prevail, if the binary
input is configured for feed-forward control (In 1 = FEFO).
When the contact at the binary input is closed, the controller’s
manipulating factor is increased by an amount of Y FF, and is reduced by the
same value when the contact is opened. No function during self-tuning.
Example: If a machine requires an average of 70% heating power during
production operation, but only 10% during idle time, the difference of Y FF is
set to 60%, and the binary input is only activated during production.
Parameters Configuration
Press and hold
Parameters
Display
Upper limit value for relay A1
al1h
Lower limit value for relay A1 al1l
Upper limit value for relay A2
al2h
Lower limit value for relay A2 al2l
Setpoint 2
sp 2
Ramp for rising setpoints
spup
Ramp for falling setpoints
spdn
Heating current setpoint (see balancing)
amps
Proportional band heating
pb 1
Proportional band cooling
pb11
Dead band H/C
dbnd
Path delay time
tu
Cooling path delay time
tu11
Read-out cycle time Motor run-time Switching hysteresis
tc ty hyst
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X1 = lower range limit, X2 = upper rang limit, MRS = X2 X1
Range
Standard Comments
oFF, 1 … MRS/2 oFF, X1 … X2
oFF
Relative (= default config.)
oFF
Absolute
SP L … SP H
X1
oFF, 1 … MRS/2 per min. oFF
oFF, 1 … MRS/2 per min. oFF
Auto, oFF, 0.1 … A H
oFF
0 … MRS/2
50
0 … MRS/2
50
0 … MRS/2
0
0 … 900 s
50 s
0 … 900 s
50 s
0.1 … 300 s
1 s
1 … 600 s
60 s
0 … MRS/2
4
See page 23
Not with step-action controller or bus interface
Only with 3-step controllers Not with 2-step controllers
Only with 3-step controllers if extra derivative action has been configured
Only with step-action controllers For limit value monitoring and limit
transducers
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Parameters
Display
Maximum setpoint
sp H
Minimum setpoint
SP L
Maximum manipulating factor y H
Minimum manipulating factor y l
Actual value correction
Cal
Actual gain value
gain
Decimal point position
dpnt
Upper range limit, standard signal rn h
Lower range limit, standard signal rn l
Manip. factor for actuation mode y st
Manip. factor for feed-forward control y ff
Sensor error manipulating factor y se
Actuation setpoint
spsv
Start-up manipulating factor
y sv
Dwell time
t sv
Boosting (setpoint increase)
spbo
Boosting time
t bo
Oscillation inhibiting
tsvp
Range SP L … X2 X1 … SP H 100 … 100% 100 … 100% MRS/2 … +MRS/2 0 … 500% 0, 0.1, 0.02, 0.003 r n L … 9999 1999 … r n H 100 … 100% 100 … 100% 100 … 100% SP L … SP H 100 … 100% 0 … 300 s 0 … MRS/2 0 … 600 s oFF, 0.3 … 25 s
R2500 28
Standard X2 X1 100% 100% 0 100% 0 100 0 0 0 0 0 10 0 0 0 oFF
Comments Limiting the setpoint entry
Not with standard signal With standard signal only
See page 26 See page 43
For hot-runner controllers only, see pages 25 and 26
See page 23
Program Controller
Activation
At the configuration level with ProG = EnA
Function
The current setpoint is determined exclusively by the program. Eight programs with twelve segments each are saved to the controller and can be selected. The functions which otherwise influence the setpoint, such as setpoint swapping and setpoint ramps, as well as the start-up circuit and boosting for hot- runner control, are without function.
Program
Each of the twelve program segments is defined by means of segment duration, targeted setpoint and the control tracks, and the program can be set to end upon completion of the first through the eleventh segment as well.
Sequence
StoP The program has been completed or stopped, or hasn’t yet been started (after a reset). The controller and the actuator outputs are inactive, relative limit value errors are suppressed. The momentary setpoint is set to the actual value. The program is started over again after it has been stopped.
run.X
The program has been started, possibly automatically after a reset (X stands for the current segment). The controller and the actuator outputs are active, relative limit value errors are enabled. Segment 1 is always executed when the program is started, and the initial setpoint is the actual value. The program can be started and stopped with a binary input: In1 = Prun.
Wt.X Same as for run.X. If “wait until setpoint is reached” has been selected (with WAit = YES), the program waits until system deviation amounts to only 2° C before activating the next segment.
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hLt.X The running program has been halted, the momentary setpoint has been frozen (X stands for the current segment). The program can be halted with a binary input: In1 = PhLt.
Control tracks
Two control tracks can be activated for the duration of the segments. They can be assigned to available switching outputs with the setting: Out… = tr… The states run and hLt can also be assigned to available switching outputs with the settings: Out… = Prun and Out… = PhLt.
Control parameters
When the program controller is active, the control parameters should not (cannot) be set manually or by means of self-tuning, because a constant setpoint is required for usable optimization results. Select ProG = diS to this end.
Display
The displays are supplemented as follows at the operating level: The momentary setpoint appears at the setpoint display when a program is running, and only dashes appear after the program has been ended because there is no longer an active setpoint. The setpoint cannot be changed. A status display also appears. Current status, namely StoP, run.X, Wt.X or hLt.X (X stands for the current segment), appears at the bottom display.
Operation
The sequence can be controlled in the status display with the help of the up and down scroll keys, if it has not been configured to binary inputs. In order to avoid erroneous settings, changes must be acknowledged within 5 seconds with the key. The change can be discarded by pressing the key.
Program Entry
+ Press and hold simultaneously
Configuration
Display Selection
Program selection
ProG
no.1 Load program 1 … no.8 Load program 8 Put1 Save current program
to program 1
…Put8 Save current program to program 8
cLr Delete current program
Performance after reset Auto StoP / run
Wait Until Setpoint is reached wait no / yes
Type of segments
segs ramp / step Ramps/increments
Unit of time for segments tIME M-S / H-M Seconds / minutes
Duration of segment 1
MS 1
0:00 … 99:59
Target setpoint, segment 1 SP 1
SP L … SPH
Control tracks, segment 1 tr 1
—- … 21
Duration of segment 2
MS 2
End End of program 0:00 … 99:59
Target setpoint, segment 2 SP 2
SP L … SP H
Control tracks, segment 2 tr 2
—- … 21
…
Standard no. 1
StoP no rAMP M-S 0:00 0°C —End 0°C —-
Comment
Valid for all 8 programs Valid for all 8 programs Valid for all 8 programs
Valid for all 8 programs
Specified numbers designate active control tracks. If End is selected, no
further entries are displayed.
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Configuration Duration of segment 12 Target setpoint, segment 12 Control tracks, segment 12
Display
MS12 SP12 tr12
Selection End, 0:00 … 99:59 SP L … SP H —- … 21
Example: Desired temperature-time profile:
setpoint
Standard End 0°C —-
Comment
R2500 32 Actual value
Control track 1 Control track 2
The pertinent program:
Segment
1
2
3
4
5
6
7
Duration MS 1…7 (HM 1…7 ) 0:40
0:30
0:20
0:50
0.00
0:50
End
Setpoint SP 1…6
100
100
180
180
120
120
—
Tracks tr 1…6
—1
—1
—-
–2-
–2-
–2-
—
Manual Optimization
Parameters Pb I, Pb II, tu and tc are determined by means of manual
optimization in order to maintain optimized controller dynamics. A start-up
test or an oscillation test is performed to this end. Preparation Complete
configuration (page 14) and parameter settings (page 27) must first be
performed for use of the controller. Deactivate the program controller,
because a constant setpoint is required for the optimization procedure. The
actuators should be deactivated with the Off or Manual Operation function
(page 13). A recorder must be connected to the sensor and adjusted
appropriately to prevailing circuit dynamics and the setpoint. For 3-step or
split range controllers, on and off time of the switching output for heating
or the continuous output must be recorded (e.g. with an
additional recorder channel or a stopwatch). Configure limit transducer
(Cout = OnOF). Set read-out cycle time to the minimum value: tc = 0.1. If
possible, deactivate manipulating factor limiting: Y H = 100. Reduce (or
increase) the setpoint so that overshooting and undershooting do not cause any
impermissible values.
Performing the Start-Up Test dbnd = MRS Setting for 3-step and split range
controllers (switching output for cooling may not be triggered)
dbnd = 0 Setting for step-action controllers (switching output for cooling
must be triggered) Start the recorder. Activate the actuators with
Automatic Operation. Record two overshoots and two undershoots. Actuation
test is now complete for 2-step, continuous-action and step-action
controllers. Continue as follows for 3-step and split range controllers: Set
dbnd to 0 in order to cause further overshooting with active switching output
for cooling. Record two overshoots and two undershoots. Record on-time TI
and off-time TII for the last oscillation at the switching output for cooling
or the continuous output.
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t
x P
dbnd = MRS xss
dbnd = 0 (3-step and split range controllers only)
R2500 34
TI
TII
Evaluating the Start-Up Test
Apply a tangent to the curve at the intersection of the actual value and the setpoint, or the cut-off point of the output.
Measure time t.
Measure oscillation amplitude xss, or for step-action controllers overshooting x. Parameter Value
tu
1.5 t
tc
tu / 12
Pb I Pb II Parameter
xss
Pb I (TI / TII)
2-step controller 3-step controller
2 xss
Pb I (TI / TII)
Cont.-action controller Split range controller
t (tY / 4) tY / 100 x / 2
Step-action controller
If manipulating factor limiting was active, the proportional band must be corrected: Y H positive: Pb I multiply by 100% / Y H Y H negative: Pb II multiply by -100% / Y H
Performing the Oscillation Test If a start-up test is not possible, for example if neighboring control loops influence the actual value too greatly, if the switching output for cooling must be active in order to maintain the actual value (cooling operating point), or if optimization is required directly to the setpoint for any given reason, control parameters can be determined by means of sustained oscillation. However, calculated values for tu may be very inaccurate in this case under certain circumstances. Preparation as above. Test can be performed without a recorder if actual value is observed at the display, and if times are measured with a stopwatch. dbnd = 0 Setting for 3-step, split range and step-action controllers Activate the actuators with Automatic Operation, and if applicable start the recorder. Record several oscillations until they become uniform in size. Measure oscillation amplitude xss. Record on-time TI and off-time TII for the oscillations at the switching output for heating or the continuous output.
xss
TI
TII
Evaluating the Oscillation Test
tu 1 tc Pb I
Pb II Parameters
xss
2-step controller
Parameter Value
0.3 (TI + TII) tu / 12
xss TII (TI + TII)
Pb I (TI / TII) 3-step controller
2 xss
Cont.-action controller
1 If either TI or TII is significantly greater than the other, value tu is too large.
2 xss TII (TI + TII) Pb I (TI / TII) Split range controller
0.2 (TI + TII 2tY) tY / 100
xss / 2
Step-action controller
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Correction with manipulating factor limiting Y H positive:Pb I multiplied by
100 % / Y H Y H negative:Pb II multiplied by -100% / Y H
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Correction for step-action controllers in the event that TI or TII is smaller than tY:
Pb I multiplied by
tYtY TI TI
, if TI is smaller, or by
tYtY TII TII
, if TII is smaller.
The value for tu is very inaccurate in this case. It should be optimized in the closed loop control mode.
Closed Loop Control Mode The closed loop control mode is started after self-
tuning has been completed: Configure the desired control algorithm with
controller type (Cout). Adjust the setpoint to the required value. For
3-step, split range and step-action controllers, the dead band can be
increased from dbnd = 0, if control of the switching outputs (or continuous
output) changes too rapidly, for example due to an unsteady actual value.
Self-Tuning
Self-tuning is used to optimize controller dynamics, i.e. the Pb I, Pb II, tu and tc parameters are set.
Preparation
Start
Current
Complete configuration must be performed before self-tuning is started.
The setpoint value is adjusted to the value which is required after self- tuning.
Deactivate the program controller.
Slow Blinking
Start
Self-tuning can only be started if it has been enabled (configuration: tunE = EnA).
Abort
Current
Briefly pressing
both keys simultaneously at the operating level triggers self-tuning. Self- tuning cannot be
Current
started in the “actuator” or “limit transducer” mode.
or
tun1…tun9 blinks at the display at all levels during self-tuning.
The controller is switched to the automatic operating mode after self-tuning has been successfully completed.
In the case of 3-step controllers, cooling is activated if the upper limit value is exceeded in order to prevent overheating. Self-tuning then performs an oscillation
test around the setpoint.
Sequence
The setpoint which is active when tuning is started remains valid and can no longer be changed. Activation or deactivation of setpoint 2 does not become effective. Selected setpoint ramps are not taken into consideration. If started at the operating point (actual value approximates the setpoint value), overshooting cannot be avoided. There are no time limitations for the sequence. Self-tuning may take quite a long time, depending upon the control system. Abort
Self-tuning can be aborted at any time with the
key ( automatic operating mode), or by switching off with the
key.
If an error occurs during self-tuning, the controller no longer reads out an actuating signal. In this case, self-tuning must be aborted with the
key. Additional information regarding error messages upon request.
Self-tuning is enabled upon shipment from the factory (default setting). Starting the self-tuning function can be disabled in the configuration.
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Balancing
Thermocouple Correction (parameter: CAL) The correction value is selected in C
/ F. The displayed correction value is added to the measured temperature.
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Cable Compensation for Pt 100 with 2-Wire Connection (parameter: CAL) Balancing is performed manually if the sensor temperature is known: CAL = known sensor temperature displayed temperature value
Correction of a Temperature Gradient (parameter: GAin) If the measured temperature value is not to be displayed, but rather a value which deviates from it, the GAin parameter is set to a value other than 100%:
GAin =
temperature to be displayed in C measured temperature in C
100%
Ascertaining the Nominal Heating Current Value (parameter: AMPS) By setting AMPS = Auto, control is interrupted for about 1 second, heating is activated and heating current is measured and saved as the nominal value. If the value is not equal to zero, heating current monitoring is automatically activated.
Limit Value Monitoring
Alarm Relay, NO Contact Alarm Relay, NC Contact
Hysteresis adjustable with HYSt parameter
Setpoint
Actual V
AL L AL L
AL H AL H
Relative Limit Values Absolute Limit Values
Start-up inhibiting: Alarm suppression is active during start-up (configuration: ALx = SUP) until temperature has exceeded the lower limit level for the first time. During cooling, suppression is active until temperature has fallen below the upper limit value for the first time. It is active when auxiliary power is activated, if the current setpoint is changed or setpoint 2 is activated, or if switching takes place from Off toAutomatic Operation.
Limiter
If a controller needs to be deactivated in the event of a limit value
violation within the control loop, the controller must be configured as a
limiter (LIM = YES). The limiter can be combined with all controller types.
The limiter responds to the second limit value, which must be set and
configured accordingly. The controller is deactivated as soon as a second
limit value is violated. The controller becomes active again when there are no
more limit value errors. If the controller is to remain continuously
deactivated after limit value monitoring has been triggered, the alarm memory
must be activated
(configuration: AL2 = Stor). The limit value errors must then be cleared in
order to reactivate the controller. This is accomplished by pressing the key
and acknowledging
the Quit AL display within 5 seconds with the key. These errors can also be
cleared with the binary input, if it has been configured to clear limit value
errors (In 1 = quit).
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Heating Current Monitoring
Current Measurement Function
Threshold AMPS current setpoint Activation
Heating current is acquired with an external transformer. Compatible with R2400 with GTZ 4121 for alternating and 3-phase current. An alarm is triggered if the current setpoint is fallen short of by more than 20% with activated heat (control output active), or if current is not “off” when the heat is switched off. The alarm is not triggered until heating current is high enough when the switching output for heating is active, and when current drops to zero when the switching output for heating is inactive. Monitoring is only active if discontinuous heating has been selected in the configuration, and not in the case of continuous and step-action controllers. The default monitoring threshold is 20%. Heater phase current is entered for this parameter. AMPS can be set to Auto for automatic adjustment with the heater switched on. The measured current value is saved to memory. Parameter AMPS not set to oFF.
Heating Circuit Monitoring
Function
Can be set to active or inactive with the LbA configuration
Without external transformer, without additional parameters
Assumes correct optimization of tu and Pb I control parameters!
Due to the fact that self-tuning generates other results in certain cases when heating circuit monitoring is activated,
heating circuit monitoring must be activated before self-tuning is started.
In the event of manual optimization or subsequent adaptation of control parameters, the lower limit for the tu parameter
must be observed:
Minimum tu =
2·Pb I t
t = maximum temperature rise during start-up
Error message LE appears after approximately 2 times tu, if heat remains on
at 100% and measured temperature rise is too small.
Monitoring is not active: Where controller type = limit transducer, actuator
or step-action controller During self-tuning With standard signal input
(designation B2) Where manipulating factor limiting Y H < 20%
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Alarm History
· The alarm history includes 100 error status entries with the respective time
stamps. Whenever at least one entire bit of the overall error status changes,
the complete error status is saved with the current time stamp.
· Recording is started over each time the device is reset, and data are lost
if auxiliary power fails. Recording can be activated with the setting HISt =
YES in the configuration, or via interfaces.
· After the ring buffer has been filled to capacity with 100 entries, the
oldest entry is deleted each time a new one is recorded.
· Entries can only be read out via the bus interface or the infrared
interface. See the interface description for detailed information.
Data Logger
· The data logger has enough capacity for 3600 sampled value pairs including
actual values and manipulated variables. The logger sampling cycle can be
configured within a range of 0.1 to 300.0 seconds. This results in recording
times of 0.1 to 300 hours (6 minutes to 12 days).
· Recording must be started over again each time the device is reset, and data
are lost if auxiliary power fails. · Recording can be started via a binary
input, with the setting LoGG = YES in the configuration or via interface. ·
After the ring buffer has been filled to capacity with 3600 entries, the
oldest values are deleted as new ones are recorded. · Entries can only be read
out via the bus interface or the infrared interface. See the interface
description for detailed information.
Error Messages
Responses in the event of an error:
1. Alarm output A1 is activated; its performance is determined by the configuration (see page 17).
2. LED A1 blinks at all levels, but the error message only appears at the operating level (upper display blinks).
3. Exceptions and additional information are included in the following table:
Display
Error Message Source
Response
sensor error high Broken sensor or actual value > upper range limit
sensor error low Sensor polarity reversed or actual value < lower range limit
Controller Sort
2 or 3-step
Step On/Off ctrl. Actuator
Manipulating Factor Read-Out
YSE = 100/0/100%
YSE 100/0/100%
100/0/100%
If the controller has settled in: last “plausible” manip. factor,
If not: YSE
Control outputs inactive
YSE
No response to error
Remedy 1
current error Heating current
Current transformer has reversed polarity, is unsuitable or defective
Same as heating current monitoring alarm, continues to control temperature
2
display
no tune
Self-tuning cannot be started (controller No response to error, error display remains until sort: “actuator” or “limit transducer”). acknowledged (see below).
tune error 2
Disturbance in self-tuning sequence in Control outputs inactive, self-tuning must be aborted with
step 1 … 9 (in this case step 2)
the and keys.
3
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Display
loop error
Error Message Source
Response
Measured temperature rise is too small Control outputs inactive, error message remains until
with heat on at 100%
acknowledged (see below).
Remedy 4
parameter error Parameter not within permissible limits Control outputs inactive, the parameter level is disabled.
5
digital error
Error detected by digital component monitoring
Control outputs inactive
6
analog error
Hardware error detected by analog component monitoring
Control outputs inactive
6
Remedies
1. Eliminate sensor error. 2. Inspect current transformer. 3. Avoid
disturbances which impair the self-tuning sequence, e.g. sensor
errors. 4. Close the control loop: Check the sensor, the actuators and the
heater for
correct functioning. Check sensor-heater assignments (wiring). Correctly
optimize control parameters tu and Pb I.
5. Restore default configuration and default parameters, and then reconfigure
or load user-defined default settings.
6. Arrange for repair at authorized service center.
Error Acknowledgement
Errors are acknowledged by pressing the key and acknowledging the Quit AL
display within 5 seconds with the key.
Error mask
With the default setting (configuration A1M1 = def), relay output A1 reads out
alarms from limit value monitor 1, as well as all other errors (sensor errors,
heating current errors etc.), and relay output A2 only reads out alarms from
limit value monitor 2. The individual error messages can be assigned to
outputs A1 and A2 in a targeted fashion with the error masks. The values must
be added and entered hexadecimally to this end. (Configuration is more user
friendly with the Compact Config PC tool.)
Device error mask (A1M2 and A2M2)
Value
Meaning
0002
Heating current overrange
0004
Cold junction error
0010
Heating current not off
0020
Heating current too low
0040
Heating current too high
0100
Memory error
0200
Parameter error
Display CE CJE
Blinks Blinks Blinks
FE PE
default A1 A1 A1 A1 A1 A1 A1
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Channel error mask (A1M1 and A2M1)
Wert
Meaning
0001
Broken sensor, 2nd input
0002
Reversed polarity, 2nd input
0004
Analog error
0008
Broken sensor
0010
Reversed polarity
0020
1st Lower limit value fallen short of
0040
2nd lower limit value fallen short of
0080
1st upper limit value exceeded
0100
2nd upper limit value exceeded
0200
Parameter impermissible for entry via interface
0800
Heating circuit error
1000
Self-tuning start-up error
2000
Self-tuning error or abort
Display SE H SE L AE SE H SE L Blinks
Blinks
LE no t tE X
default A1 A1 A1 A1 A1 A1 A2 A1 A2 A1 A1
R2500 46
Replacing an R2400 Controller with an R2500 Controller
Replacement with regard to feature A
R2400
Feature
Heating output Cooling output
A1
Transistor
—
A1
Relay
—
A1
—
Transistor
A1
—
Relay
A2, A4
Transistor
Transistor
A2, A4
Relay
Transistor
A2, A4
Transistor
Relay
A2, A4
Relay
Relay
Feature A1 A2 A1 A2 A1 A2 A2
A2
A3
Continuous
—
A5
A3
—
Continuous
A5
A3
Continuous
Relay
A5
A3
Relay
—
A5
A3
—
Relay
A5
A3
Relay
Relay
A5
Configuration Out1 = HEAt
Out1 = HEAt Out1 = CooL Out1 = CooL
Out1 = HEAt Out1 = HEAt Out1 = CooL Rewiring: Out1 = HEAt Rewiring: 17 to 18
Out1 = oFF Out1 = oFF
Out1 = CooL Rewiring: Out1 = HEAt
Out1 = CooL Out1 = HEAt Rewiring: 17 to 18
R2500
Out2 = oFF
Out2 = oFF
Out2 = oFF
Out2 = oFF
Out2 = CooL
Out2 = CooL
Out2 = HEAt
3 to 4 and 17 to 15
Out2 = CooL Out = XCh
15 to 20
16 to 19
19 to 16
20 to 15
Cont = HEAt
Cont = CooL
Cont = HEAt
17 to 15
Cont = Proc
Cont = Proc
Out2 = CooL Out = XCh
15 to 20
16 to 19
19 to 16
20 to 15
· When configured as a step-action controller (R2400, features A2, A4), the configuration of the corresponding output is not Outx = CooL in the case of the R2500, but rather Outx = HcLo.
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Replacement with regard to features B and C: · Features B1 and B2 are
identical for both devices. · Features C1 and C2 for the R2400 are feature C1
for the R2500. · Feature C3 cannot be replaced with the R2400. · Feature C4
for the R2400 is feature C2 for the R2500.
The following functions cannot be replaced: · Position acknowledgement display
for step-action controller (R2400,
feature A4). Step-action controller function is available. · 24 V AC auxiliary
power (R2400, feature C3)
R2500 48
measuring range span as is the case with the R2400. Conversion is accomplished
as follows: Pb (R2500) = Pb (R2400) x mrs (R2400) / 100%.
! Attention!
To ensure radio interference suppression, the protective conductor and/or
control cabinet grounding must be connected to terminal 13.
The following rewiring is required:
· The connector terminals on the R2400 can still be used, because the pin
assignments are identical except for a few exceptions. The two plug connectors
can be pulled out after loosening the lacquered screws.
· In the case of 230 V AC auxiliary power (R2400, feature C1), the conductor
connected to terminal 13 is moved to terminal 12.
· If the actuating signal for cooling is read out via the relay, the
corresponding connection must be changed (see table on page 47).
· If both actuating signals are read out via relay, the relay connections must
be changed (see table on page 47).
Converting Parameters In the case of the R2500, the proportional bands are
specified in the unit of measure of the controlled variable, instead of as a
percentage of the
Technical Data
Ambient Conditions
Annual mean relative humidity, no condensation
75%
Ambient temperature
Nominal range of use Operating range Storage range
0 C … + 50 C 0 C … + 50 C 25 C … + 70 C
Auxiliary Voltage Nominal Value 110 V AC 230 V AC 24 V DC
Nominal Range of Use
Voltage
Frequency
85 to 265 V AC
48 to 62 Hz
20 to 30 V DC
Power Consumption Typically 1.5 W
Electrical Safety Safety class Fouling factor Measuring category Operating voltage EMC interference emission EMC interference immunity
II, panel-mount device per DIN EN 61010-1, section 6.5.4 2, per DIN EN 61010-1, section 3.7.3.1 and IEC 664 II, per DIN EN 61010 appendix J and IEC 664 300 V per DIN EN 61010 EN 61326 EN 61326
Refer to the data sheet for complete technical data (3-349-377-03).
Relay output
Switching capacity Service life Interference suppression
Floating NO contact, common phase for switching outputs A1 and A2
250 V AC/DC, 2 A, 500 VA / 50 W
5 105 switching cycles at nominal load
Utilize external RC element (100 – 47 nF) at contactor
Gossen Metrawatt GmbH
R2500 49
Gossen Metrawatt GmbH
R2500 50
Gossen Metrawatt GmbH
R2500 51
© Gossen Metrawatt GmbH Prepared in Germany · Subject to change, errors
excepted · PDF version available on the Internet
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Gossen Metrawatt GmbH Südwestpark 15 90449 Nürnberg · Germany
Phone +49 911 8602-0 Fax +49 911 8602-669 E-Mail info@gossenmetrawatt.com www.gossenmetrawatt.com
References
- Servicepartner für Kalibrierungen, Reparaturen, Ersatzteile, Mietgeräte | GOSSEN METRAWATT GMC-I Service GmbH
- GOSSEN METRAWATT, GMC-Instruments