Eliwell EWRC 300 NT Coldface Controller Small User Guide

Eliwell EWRC 300 NT Coldface Controller Small

Product Information

Specifications

• Model: EWRC 300/500 NT
• Function: Controllers for static and ventilated cold rooms
• Display: Upper and Lower display with LEDs
• Electrical Input: L/N 230V~ 18A max
• Probe Types: NTC/PTC (switchable)
• Optional: RS485 connectivity

Product Usage Instructions

Mechanical Installation

1. Open the cover of the controller.
2. Fix the backplate using 4 screws.
3. Ensure proper closure of the cover to maintain an airtight seal for wiring.

Electrical Connections
To switch between NTC/PTC probe types, use parameter H00. Remember to switch off and restart the instrument after making the change.

User Interface

• Keys:
  • A: ESC key for Defrost
  • B: p UP for Alarms
  • C: SET
  • D: q DOWN for AUX
  • E: ON/OFF
  • F: LIGHT
• Navigation Menu:
  • Activate auxiliary function
  • Switch On/Off the device
  • Switch the light on/off

Notes:
HACCP alarms only on foreseen models and if present. Display time on models with a clock only.

User Parameters Table
This section describes the most commonly used parameters which are always visible. For a description of all other parameters, refer to the user manual. The user parameters are not divided into sub-folders and are always visible.

FAQ

Q: How do I switch between NTC and PTC probe types?

A: Use parameter H00 and remember to switch off and restart the instrument after making the change.

Q: How can I activate the auxiliary function?

A: Navigate to the auxiliary function option in the menu and activate it as needed.

Q: What do the different LED indicators signify?

A: The LED indicators represent various functions and alarms. Refer to the user manual for a detailed description of each LED indicator.

INTRODUCTION

The Coldface EWRC 300/500 NT series controls the temperature of a static or ventilated cold room. The instrument controls positive and negative cold rooms and is capable of managing double evaporator and condenser probes.

Coldface has 3 or 5 configurable relays depending on the model, and 2 digital inputs configurable for door switches or other devices. Models are available with a clock with a yearly calendar and HACCP event logging. Connection to TelevisSystem is possible using the optional module plug-in RS485. The container is used to install a magnetothermal switch or power contactor. This summary document contains basic information about the standard models EWRC 300/500 NT. For further information and different configurations, refer to the complete user manual cod. 9MA10258 downloadable free of charge from www.eliwell.com.

NAVIGATION DIAGRAM

MECHANICAL INSTALLATION

• Take out the 4 screws supplied and then open the cover.
• Drill holes for the high and low volt-age cable glands on the sides of the backplate, as shown.
• Check that the cables are inside the box.
• Use suitable cable glands and/or conduit glands that guarantee an airtight seal for all wiring. See the cutout on the last page.
• Drill 4 holes (see A…D) in the wall and fix the backplate using 4 screws (not supplied) suited to the wall thickness.
• Insert plug covers TDI 20 (accessory available on request)
• Close the door and screw on the 4 cover screws taking care that the hinges are flush and do not interfere with the closure of the cover.

ELECTRICAL CONNECTIONS

Output relay (default settings)

• OUT1 relay 1 = Compressor (or liquid line valve)
• OUT2 relay 2 = Defrost
• OUT3 relay 3 = Evaporator fan
• OUT4 relay 4 = Light (EWRC 500 NT only) OUT1-4 common-line max 18A
• OUT5 relay 5 = Alarm/AUX (EWRC 500 NT only)

Probe inputs (default settings)

• Pb1 = NTC cold room probe
• Pb2 = NTC defrost end probe
• Pb3 = Not configured

To switch between NTC/PTC probe types use parameter H00. SWITCH OFF AND RESTART THE INSTRUMENT after making the change.

Digital Inputs (default settings)

• DI1 = Door switch
• DI2 = not configured

Serial ports

• TTL for connection to UNICARD/Copy Card/MFK
• TTL for connection to TelevisSystem
• RS485 is available ONLY with an optional Plugin module for connection to TelevisSystem.

Important!
Make sure the appliance is switched off before working on the electrical connections.

• Probe and digital inputs, OUT5 relay: screw-on terminals pitch 5.01: electric cables with max. cross-section 2.5 mm2 (only one wire per terminal for power connections).
• Power supply and relay OUT1.OUT4: screw-on terminals pitch 7.62: electric cables with max. cross-section 4 mm2 (only one wire per terminal for power connections).

DISPLAY

3-FIGURE UPPER DISPLAY plus the – sign

Display:

• Operating value
• parameters label
• alarms, functions

if the Upper display blinking
it means that the value of the Lower Display can be modified

4-FIGURE LOWER DISPLAY

Display:

• parameters value
• probe value
• function state HACCP models
• time

LEDs

ON: function/alarm ON; OFF: function/alarm OFF
17| RH| amber| not used
---|---|---|---
18| TIME| amber| access in case of time display or editing
19| DATA| amber| access in case of date display or editing

KEYS

No.| KEY| Press and release| Press and hold for about 3 seconds| NAVIGATION MENU| Notes
---|---|---|---|---|---
A| ESC key Defrost| •  Functions Menu| •  Manual defrost

•  Return to the Main Menu

| •  Output|
B| UP Alarms| •   Alarms Menu (always visible)| ****

/

| •   Scroll

•   Increase values

| HACCP alarms only on foreseen models and if present
C| SET| •   Display SetPoint/probe values/time (Models with clock)

•   Confirm values

•   Access value edit mode (upper display blinking)

| •  Access Parameters Menu| •  Confirm values

•   Move right

| display time Models with the clock only
D| DOWN AUX| system INFO

See Technical Support

| Activate auxiliary function| •   Scroll

•   Decrease values

|
E| ON/OFF| /| Switch On/Off the device| /|
F| LIGHT| /| Switch the light on/off| /|

USER INTERFACE

How to modify the SetPoint

• Press and release the SET key. The upper display will show SEt, and the lower display will indicate the current SetPoint value
• Press and release the SET key once more. The upper display will show SEt blinking
• Use the UP & DOWN keys to adjust the Setpoint value
• Press the ESC key several times (or keep it pressed) to return to the normal display

How to read the probe value

• Press and release the SET key. The upper display will show SEt, and the lower display will indicate the current SetPoint value
• Press and release the DOWN key. If the RTC clock is present, the time will be shown in the lower display
• Press and release the DOWN key once more. The upper display will show Pb1, and the lower display will indicate the value read by the room probe
• Press and release the DOWN key once more to read the value of probe Pb2 and Pb3 if configured
• Press the ESC key to return to the normal display.

How to modify the User Parameters
The user parameters are the most useful and are described in this document, in the section Parameters Table.

1. Press and hold the SET key for 3 seconds until the display shows PAr / USr
2. Press and release the SET key once more. The upper display will show the first parameter, the lower display will indicate the current parameter value
3. Using the UP & DOWN keys, find the parameter that you wish to modify
4. Press and release the SET key once more. The upper display will show the name of the blinking parameter
5. Use the UP & DOWN keys to adjust the parameter value.
6. Press and release SET to save the parameter value
7. Return to step 3) or press ESC several times to return to the normal display

USER PARAMETERS TABLE

This section describes the most commonly used parameters that are always visible (the access password PA1 is not enabled by default). For a description of all other parameters, see the user manual. NOTE: the user parameters ARE NOT divided into sub-folders and are always visible. The same parameters are also visible in the respective folders ‘Compressor’, ‘Fans’, etc. (indicated also here to make the groupings clearer) in the password-protected Installer parameters menu.

PARA.

| DESCRIPTION| U.M.| RANGE|

DEFAULT

---|---|---|---|---
SEt| Temperature control SEtpoint| °C/°F| -58.0…302| 0.0
 | COMPRESSOR (CPr)
diF| Activation differential

N.B.: diF cannot be equal to 0.

| °C/°F| 0 … 30.0| 2.0
HSE| The maximum value that can be assigned to the setpoint.

NOTE: The two setpoints are interdependent: HSE cannot be less than LSE and vice versa.

| °C/°F| LSE … HdL| 50.0

LSE

| The minimum value that can be assigned to the setpoint.

NOTE: The two setpoints are interdependent: LSE cannot be greater than HSE and vice versa.

|

°C/°F

|

LdL … HSE

|

-50.0

OSP| Temperature value to be added algebraically to the Setpoint if reduced set enabled (Economy function). Enabling can be controlled by a key, function, or specially configured digital input.| °C/°F| -30.0 …

30.0

| 0.0
Cit| Minimum activation time of compressor before possible deactivation. If Cit = 0 not active.| min| 0 … 255| 0
CAt| Maximum activation time of compressor before possible deactivation. If CAt = 0 not active.| min| 0 … 255| 0

Ont

| Controller switch-on time in the event of a faulty probe.

–  if Ont = 1 and OFt = 0, the compressor stays on permanently (ON).

–  if Ont > 0 and OFt > 0, the compressor operates in Duty Cycle mode.

|

min

|

0 … 255

|

10

OFt

| Controller switch-off time in the event of a faulty probe.

–  if OFt = 1 and Ont = 0, the compressor will always stay off (OFF).

–  if Ont > 0 and OFt > 0, the compressor operates in Duty Cycle mode.

|

min

|

0 … 255

|

10

dOn

| Switch-on delay. The parameter indicates that protection is active on the general compressor relay actuation. At least the indicated time must elapse between the request and the actual activation of the compressor relay.|

sec

|

0 … 255

|

2

dOF| Delay time after power-off: the delay time indicated must elapse between deactivation of the

compressor relay and the next power-on.

| min| 0 … 255| 0
dbi| Delay time between power-ons; the delay time indicated must elapse between two consecutive compressor power-ons.| min| 0 … 255| 2
OdO| Delay in activating outputs after the instrument is switched on or after a power failure.

0 = not active

| min| 0 … 255| 0
 | DEFROST (dEF)

dtY

| Defrost mode

0 = electric defrost (defrost cycle OFF), or compressor not running during defrost.

NOTE: electrical defrost + air defrost, in the case of fans connected in parallel to the defrost output relay.

1 = cycle inversion defrost (hot gas, or compressor on during defrost)

2 = “free” mode defrost (independent of compressor).

|

num

|

0 … 2

|

0

dit

| The interval between 2 defrost cycles

The interval between the start of two consecutive defrost cycles. 0 = function disabled (defrost NEVER performed).

| hours/mins/ secs|

0 … 255

|

6 hours

dCt

| Defrost interval count mode

0 = compressor running time (DIGIFROST® method); defrost active ONLY when the compressor is on.

NOTE: compressor running hours are counted separately from the evaporator probe (count active also when the evaporator probe missing or faulty).

1 = appliance running hours; defrost count is

always active when the machine is on and starts at each power-up.

2 = compressor stopped Every time the compressor stops, a defrost cycle is performed according to parameter dtY;

3 = with RTC. defrost at specific times set by parameters dE1…dE8, F1…F8.

|

num

|

0 … 3

|

1

dOH| Defrost cycle enabling delay from request Delay preceding start of first defrost after the call.| min| 0 … 59| 0
dEt| Defrost timeout

Determines the maximum defrost time on Evaporator 1.

| hours/mins/ secs| 1 … 255| 30 min
dSt| Defrost end temperature

Defrost 1 end temperature (determined by evaporator probe 1).

| °C/°F| -302.0 …

1472.0

| 6.0

dPO

| Defrost enabling request from power-on

Determines whether or not the instrument must defrost at power-up (provided that the temperature measured at the evaporator will allow defrosting).

n = no, does not start defrosting at power-on; y = yes, starts defrost at power-on

|

flag

|

n/y

|

n

---|---|---|---|---
FANS (FAn)
FSt| Fans lockout temperature; if the value read is greater than FSt, the fans will be stopped. The value can be positive or negative| °C/°F| -58.0…302| 0.0
FAd| Fans activation differential.| °C/°F| 0.1 … 25.0| 0.1
Fdt| Fans activation delay after a defrost cycle.| min| 0 … 250| 0
dt| dripping time.| min| 0 … 250| 0
dFd| The operating mode of evaporator fans during defrosting.

OFF (0) = Fans Off; On (1) = Fans On

| flag| OFF/On| On
FCO| Evaporator fans operating mode. The status of the fans will be:

A compressor ON fans thermoregulated, and A compressor OFF depends on FCO

FCO=0 , fans OFF

FCO=1-2 , fans thermoregulated

FCO=3-4 , fans in duty cycle

Duty cycle : controlled by way of parameters “ FOn ” and “ FOF ”.

|

num

|

0 … 4

|

1

ALARMS (ALr)
AFd| Alarms cut-in differential.| °C/°F| 0.1 … 25.0| 1.0
HAL| Probe 1 maximum alarm. Temperature value (intended either as distance from setpoint or as an absolute value based on Att ) above which the probe will trigger activation of the alarm signal.| °C/°F| LA1…302| 5.0
LAL| Probe 1 minimum alarm Temperature value (intended as the distance from setpoint or as an absolute

value based on Att ) beneath which the probe will trigger activation of the alarm signal.

| °C/°F| -58.0…HA1| -5.0
PAO| Alarm override time after the device is switched on following a power failure.

This parameter refers to high/low-temperature alarms LAL and HAL only

| hours| 0 … 10| 3
dAO| Temperature alarm overrides time after defrosting.| min| 0 … 250| 60
OAO| Alarm indication delay (high and low temperature) following deactivation of digital input (port closed).| hours| 0 … 10| 1
tAO| Delay preceding indication of temperature alarm.

This parameter refers to high/low-temperature alarms LAL and HAL only

| min| 0 … 250| 0
 | DISPLAY parameters (diS)

LOC

| LOCk. Setpoint edit lock. The parameter programming menu can still be accessed, and the settings changed, which means also that the status of this parameter can be changed to unlock the keypad.

n (0) = no

y (1) = yes.

|

flag

|

n/y

|

n

PA1| Password 1. When enabled ( PA1 ≠ 0 ) it is the access key for the level 1 parameters ( User ).| num| 0 … 250| 0

ndt

| Display values with decimal points.

n (0) = no (integers only)

y (1) = yes (display with decimal point).

|

flag

|

n/y

|

y

CA1

| Calibration of probe Pb1.

Positive or negative temperature value added to the value read by Pb1. This sum is used for both temperature display and temperature regulation purposes.

|

°C/°F

|

-30.0…30.0

|

0.0

CA2

| Calibration of probe Pb2.

Positive or negative temperature value added to the value read by Pb2. This sum is used for both temperature display and temperature regulation purposes.

|

°C/°F

|

-30.0…30.0

|

0.0

ddL

| Display mode during defrosting.

0 = displays the temperature read by the probe

1 = locks the reading at the temperature value registering via the probe when the defrost cycle starts and until the next time the SEt is reached.

2 = displays the label dEF during defrosting and until the next time the SEt is reached (or until Ldd

has elapsed).

|

num

|

0/1/2

|

1

CONFIGURATION (CnF)

If one or more parameters present in the folder are changed, the controller MUST be switched off and switched on again.

H00

| Selection of type of probe used (Pb1 … Pb3).

(0) = PTC

(1) = NTC

|

num

| 0/1 (PTC/NTC)|

1 (NTC)

 | Configuration of digital output 3 (OUT 3).|  |  |
---|---|---|---|---
 | 0 = disabled| 7 = light|  |  |
 | 1 = compressor| 8 = Buzzer output|  |  |
H23| 2 = defrost 1

3 = Evaporator fans

| 9 = defrost 2

10 = compressor 2

| num| 0 … 13| 3
 | 4 = alarm| 11 = frame heater|  |  |
 | 5 = AUX| 12 = Condenser fans|  |  |
 | 6 = Stand-by| 13 = Compressor Pump Down|  |  |

H42

| Evaporator probe (Pb2) present

n (0) = not present

y (1) = present

|

num

|

n/y

|

y

rEL| Firmware version release (e.g. 1,2,…). Read only. See Technical Support.| /| /| /
tAb| Map code. Read only. See Technical Support.| /| /| /
 | COPY CARD parameters (FPr)
UL| Upload. Transfer of programming parameters from instrument to Copy Card| /| /| /
dL| Download. Transfer of programming parameters from Copy Card to instrument| /| /| /

Fr

| Formatting. To erase data on the Copy Card.

IMPORTANT: If parameter “Fr” is used, the data entered will be permanently lost. This operation cannot be reversed.

|

/

|

/

|

/

THE INSTRUMENT IS USED TO EDIT OTHER PARAMETERS PRESENT IN THE INSTALLER LEVEL (inS)

How to edit the installer-level parameters
The procedure applies only to more advanced applications. In this case, the parameters are arranged in fold-ers (Compressor / Defrost / Fans, etc)

1. Press and hold the SET key for 3 seconds until the display shows PAr / USr
2. Use UP & DOWN to select the parameter section inS
3. Press and release the SET key once more. The display will show the first folder
4. Press and release the SET key once more. The upper display will show the first parameter in the folder, the lower display will indicate the current parameter value
5. Using the UP & DOWN keys, find the parameter that you wish to modify The procedure proceeds similarly to that described for the User parameters (points 4-7)

OPERATION IN DEFAULT CONFIGURATION
The instrument is configured for negative cold. For positive cold, disable the evaporator probe Pb2 (set H42=n) and set relay OUT3 (parameter H23=6) to prevent continuous ventilation.

COMPRESSOR
The compressor is active if the cold room temperature detected by Pb1 exceeds the value of SEt + differ-ential diF. The compressor stops if the cold room temperature detected by Pb1 falls below the SEt value. The instrument includes compressor on/off protection*

DEFROST
Defrost uses electric heaters (parameter dty = 0) and the time counter is always active with the instrument switched on (dCt=1).

Manual defrost
Manual defrost is activated by pressing and holding the ESC key (A). If conditions for defrosting are not present, (e.g. the evaporator probe temperature is higher than the defrost end temperature) or the parameter OdO≠0, the display will blink three times to indicate that the operation will not be performed.

Default Defrost settings

• dit = 6 hours. interval between 2 defrost cycles
• dSt = 6.0°C. defrosting end temperature set by Pb2.

The Defrost cycle may terminate due to timeout based on the parameter dEt (default 30 min).

EVAPORATOR FANS
Relay OUT3 is configured as a fan relay and is activated in the required cases, according to delays and parameter settings*

Default fan settings

• dt = 0 min. dripping time
• dFd = Y. Fans off during defrosting.

LIGHT (EWRC 500 NT)

• The light is activated by pressing and holding the LIGHT key (F).
• Since digital input D.I. 1 is configured as a door switch, relay OUT4 (light) is activated when the door is opened. The light also switches on with the instrument on standby*.

ALARM RELAY (EWRC 500 NT)
Relay OUT5 is configured as an alarm relay and is activated in the case of alarms, according to delays and parameter settings. *FOR MORE INFORMATION READ the manual, code 9MA10258

SUPERVISION

EWRC 300/500 NT can be connected to:

• TelevisSystem or external system remote control system via Modbus protocol
• DeviceManager fast parameter setting software

The connection can be made by direct RS-485 connection using the optional RS485/TTL plug-in module (not included). See Electrical Connections. FOR MORE INFORMATION READ the manual, code 9MA10258

TECHNICAL SUPPORT
Please have the following information available when contacting Eliwell Technical Support:

• IdF firmware version (e.g. 554)
• rEL firmware version release (e.g. 1,2,…)
• tAb map code
• rC instrument model (e.g. 300 or 500)

To obtain this information:

• Press and release the DOWN / INFO key
• Press and release the DOWN key once more to display other information about the instrument.
• Press the ESC key to return to the normal display.

ALARMS AND TROUBLESHOOTING

How to display the alarms

1. Press and release the UP key. The upper display will always show the label ALr. The lower display will show:
   • None if no alarms active
   • SYS to indicate system alarms – see Alarms Table
   • HACP to indicate HACCP alarms – see HACCP alarms
2. Using the UP & DOWN keys, find the type of alarm that you want to check

System alarms
The upper display will show the label ALr, the lower display will indicate the alarm code – see Alarms Table

• Using the UP & DOWN key, scroll the other alarms
• Press the ESC key to return to the previous alarm code, press the ESC key several times (or keep it pressed) to return to the normal display

HACCP ALARMS • AVAILABLE ONLY FOR HACCP MODELS

• The instrument logs high and low-temperature alarms for the cold room probe, as well as any power failures. The alarm types and the duration and start time of the alarm itself will be displayed in the alarms folder ALr. It is possible to disable the recording of alarms and/or resetting of HACCP alarms. See Functions Menu.
• FOR MORE INFORMATION READ the manual, code 9MA10258

ALARMS TABLE

This section lists alarms associated with the default configuration of the instrument.

For a description of alarms relating to custom configurations, refer to the user manual or contact Eliwell Technical Support.

Label

| Cause| Effects|

Problem-solving

**E1***

| Pb1 room probe faulty

•  Measured values are outside the operating range

•  Probe faulty/short-circuited/open

| •  Label E1 displayed

•  Disabling of maximum and minimum alarm regulator

•  Compressor operation based on parameters “Ont” and “OFt” is set for the duty cycle.

| ****

•  Check probe type NTC/PTC (see H00)

•  Check probe wiring.

•  Replace probe

**E2***

| Pb2 defrost probe faulty

•  Measured values are outside the operating range

•  Probe faulty/short-circuited/open

| •  Label E2 displayed

•  The Defrost cycle will end due to time-out (Parameter “dEt”)

| •  Check probe type NTC/PTC (see H00)

•  Check probe wiring.

•  Replace probe

LA1

| Pb1 LOW-temperature alarm

• Value read by Pb1 < LAL after the time of tAO.

| •  Recording of label LA1 in folder ALr

•  No effect on regulation.

| •  Wait for the temperature value read by Pb1 to come back above LAL+AFd

HA1

| Pb1 HIGH-temperature alarm

•  value read by probe Pb1 > HAL after the time of “tAO”.

| •  Recording of label HA1 in folder ALr

•  No effect on regulation.

| •  Wait until the temperature value read by Pb1 returns below HAL-AFd.

Ad2

| End of defrost cycle due to time-out

rather than due to the defrost end temperature being read by the defrost probe

| •  Recording of label Ad2 in folder ALr| •  Wait for the next defrost cycle for automatic return

OPd

| •  Activation of digital input (set as door switch) See para. H11/H12

•  Depends on delay set by parameter tdO

| •  Recording of label OPd in folder ALr

•  Regulator locked (see para. dOA/PEA)

| •  Close door

•  Depends on delay set by parameter OAO

E10**

| **Models with clock only

Clock alarm clock faulty or battery low

| Functions associated with the clock not present| ****

Contact Eliwell Technical Support

ALL ALARMS

•  Alarm icon permanently alight

•  Buzzer (if present) and alarm relay (OUT5) activated, except Ad2

•  Press any key to silence the alarm. The LED changes from a steady light to a blinking light. NOTE: the buzzer is deactivated while the alarm relay remains active

*E1 – E2: If simultaneous they will be shown alternately on the display at a frequency of 2 seconds

WARNINGS

Important!
Make sure the appliance is switched off before working on the electrical connections.

• Probe and digital inputs, OUT5 relay: screw-on terminals pitch 5.01: electric cables with max. cross-section 2.5 mm2 (only one wire per terminal for power connections).
• Power supply and relay OUT1..OUT4: screw-on terminals pitch 7.62: electric cables with max. cross-section of 4 mm2 (only one wire per terminal for power connections).
• For the capacity of the terminals, see the label on the instrument. Outputs on OUT1-4 relay max. capacity 18A.
• Do not exceed the maximum permitted current; for higher loads, use a contactor with sufficient power capacity. Make sure that the power supply is of the correct voltage for the instrument.
• Probes have no connection polarity and can be extended using a normal two-core cable (note that extension of the probe influences the instrument’s electromagnetic compatibility – EMC and measurement class: take great care with the wiring). Probe cables, power supply cables, and TTL serial cables should be routed separately from power cables.

TECHNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS (EN 60730-2-9)

DESCRIPTION

Front panel| IP65
Classification| electronic automatic control device (not safety) device for stand-alone installation
Installation| wall mounted (distance between holes A-B 116 mm; holes C-D 87 mm holes A-C 235 mm See Mechanical Installation paragraph

Hinges are available for mounting on special compartments for opening the cover both right and left.

Screw on the respective anchoring screws taking care that the hinges are fitted well and lie flush so that they do not interfere with the compression of the seal

Type of action| 1. B
Pollution class| 2
Material class| IIIa
Overvoltage category| II
Nominal pulse voltage| 2500V~
Operating temperature| -5°C…+50°C
Power supply| 230V~ ± 10% 50/60Hz
Power consumption| 14W max
Digital outputs (relay)| refer to the label on the device
Fire resistance category| D
Software class| A
Connection| the device on the external flexible cable, Y-type connection
Ball test temperature| 100°C

FURTHER INFORMATION

DESCRIPTION

Container| Bayblend FR 3010
Dimensions| front panel 213x318mm, depth 102mm
Connections| screw-on terminals (see wiring diagram) with internal housing for the magnetothermal switch, remote control switch, contactor, etc. on the DIN rail

IMPORTANT: do not exceed ampere limits

Storage temperature| -20°C…+85°C
Operating humidity| 10…90% RH non-condensing
Storage humidity
Display range| –50…110 (NTC) / –55…150°C (PTC) no decimal point, on 2 displays:

(upper display) 3 digit + sign/ (lower display) 4 digit

Analogue Inputs| 3 NTC inputs PTC configurable by parameter H00
Digital Inputs| 2 digital inputs with no voltage configurable from parameter H11/H12
Relay outputs| Model EWRC 300 NT

•  OUT1 output SPST 2HP 12(12)A 250V~

•  OUT2 output SPST 1HP 8(8)A 250V~

•  OUT3 output SPST 1/2HP 8(4)A 250V~ common-line max 18A

| Model EWRC 500 NT

•  OUT1 output SPST 2HP 12(12)A 250V~

•  OUT2 output SPST 1HP 8(8)A 250V~

•  OUT3 output SPST 1/2HP 8(4)A 250V~

•  OUT4 output SPST 1/2HP 8(4)A 250V~

•  OUT5 output SPDT 1HP 8(8)A 250V~ common-line max 18A

Buzzer| only on models where this is provided

Serial ports

| •  1 TTL port for connection to Unicard / Copy Card / MFK

•  1 TTL port for connection to TelevisSystem

•  1 RS-485 serial port for connection to TelevisSystem (use with optional plug-in module)

Accuracy| better than 0.5% of end of scale +1 digit
Resolution| 1 or 0.1 °C
RTC battery life| In a power failure, the clock battery will last 4 days.

Food safety
The device complies with standard EN13485 as follows:

• Suitable for storage.
• Application: air.
• Climate range A.
• measurement class 1 in the -25°C and 15°C (exclusively using Eliwell probes)

CONDITIONS OF USE – Permitted use

• For safety reasons, the device must be installed and used per the instructions provided. In particular, parts carrying dangerous voltages must not be accessible under normal conditions.
• The device must be adequately protected from water and dust concerning the application, and must only be accessible using tools (except for the front panel).
• The device is suitable for use as a stand-alone unit and has been tested for safety aspects under harmonized European reference standards.

Prohibited use
Any use other than that expressly permitted is prohibited. The relays provided are of a functional type and can be subject to failure: any protection devices required by product standards, or suggested by common sense for obvious safety requirements, must be installed externally to the controller.

RESPONSIBILITY AND RESIDUAL RISKS
Eliwell Controls srl declines any liability for damage due to:

• installation/uses other than those expressly specified and, in particular, failure to comply with the safety requirements of established standards and/or instructions specified in this document;
• use on panels that do not provide adequate protection against electric shock, water, or dust, when mounted;
• Use on panels allowing access to dangerous parts without having to use tools.
• Tampering with and/or modification of the product.
• Installation/use on panels that are not compliant with current standards and regulations.

DISCLAIMER
This document is the exclusive property of Eliwell and cannot be reproduced or circulated unless expressly authorized by Eliwell. All possible care has been taken to ensure the accuracy of this document; nevertheless, Eliwell Controls srl cannot accept liability for any damage resulting from its use. The same applies to any person or company involved in the creation and preparation of this document. Eliwell reserves the right to make aesthetic or functional changes at any time without notice.

DISPOSAL
The equipment (or product) must be subjected to separate waste collection in compliance with the local legislation on waste disposal.

Eliwell Controls s.r.l.

• Via dell’Industria, 15 • Z.I. Paludi 32010 Pieve d’Alpago (BL) ITALY
• T +39 0437 986 111
• www.eliwell.com

Technical Customer Support

• T +39 0437 986 300
• E techsuppeliwell@schneider-electric.com

Sales

• T +39 0437 986 100 (Italy)
• T+39 0437 986 200 (other countries)
• E saleseliwell@schneider-electric.com.

9IS54376-1 – EN – rel. 11/14 © Eliwell Controls s.r.l. 2014 All rights reserved.

References

• Electric | The Largest Consumer Energy & Renewables Platform
• Home | Eliwell by Schneider Electric

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