i-therm RHTC-44 Humidity and Temperature Controller User Manual

USER’S OPERATING MANUAL FOR HUMIDITY AND TEMPERATURE CONTROLLER
(Models: RHTC – 44)

RHTC – 44
(48 X 48)

SPECIFICATIONS :

1. Display Type
   Model no.| RHTC-44| Color
   ---|---|---
   Display height (Upper Display)| 0.36”| White
   Display height (Lower Display)| 0.36”| Green

2. Status LED’s
       DH| : Dry Heater Output Status
   ---|---
       WH| : Wet Heater Output Status
       CP|  : Compressor Output Status
       TA|  : Temperature Alarm Status
       HA|  : Humidity Alarm Status
       WL| : Water Level Error Condition

3. Temperature Input
   Sensor input| (Selectable) : RTD & RTD.1 (Pt-100)
   ---|---
   Analog Input| : 0 – 20mA, 4 – 20mA, 0 – 1VDC

4. Humidity Input
   Analog Input  : 0-20mA, 4-20mA, 0-1VDC, 0-3.3VDC, 0-5VDC, 0-10VDC, RH-20, RH-35 (Selectable)

5. Input Specification

   ---

6. Serial Communication
   ****     Port| : RS485, 2 Wire, Half Duplex
   ---|---
       Protocol| : Modbus RTU
       Baud Rate (Selectable)| : 9600, 19200, 31250, 38400, 76800
       Parity (Selectable)| : None, Odd, Even
       Stop Bits (Selectable)| : One (1), Two (2)
7. Control Output Function
   ****     Available Output Type     (Factory Set)| : Relay, SSR, mA, Volt, TRIAC
   ---|---
       Control Action| : ON-OFF/PID (user selectable)
       Control Mode| : Heat/Cool (user selectable)
8. **SSR Drive Output

   ---

9. DC Linear Output / Retransmission
   Current (Selectable) : 0~20mA, 4~20mA (500 Ohms Max.)
   Voltage : 0~10Volt (1KOhms Max.)

10. Environmental
    ****       Operating Range| : 0 ~50°C, 5~90% Rh
    ---|---
          Storage Humidity| : 95% Rh (Non-condensing)

11. POWER SUPPLY
    ****       Supply Voltage| : 90~270VAC, 50/60Hz.
    ---|---
          Consumption| : 4W Maximum.

12.   PHYSICAL
    ****  Housing| : ABS Plastic
    ---|---

INSTALLATION GUIDELINES

1. Prepare the cut-out with proper dimension as shown in figure.
2. Remove clamp from Controller.
3. Push the Timer through panel cut-out and secure the Controller in its place by tightening the side clamp.

SAFETY INSTRUCTION MECHANICAL

• Ambient temperature and relative humidity surrounding the Controller must not exceed the maximum specified limits.

• The Controller in its installed state must be protected against excessive electrostatic or electromagnetic interferences.
  ELECTRICAL

• The Controller must be wired as per wiring diagram & it must comply with local electrical regulation.

• The Electrical noise generated by switching Inductive loads might create momentary Fluctuation in display, latch up, data loss or permanent damage to the instrument. To reduce this use snubber circuit across the load.

TERMINAL CONNECTIONS :

Front panel layout

Front panel layout function:-

is displayed. 2) In Config and Control list sub-parameters are displayed.
2| Lower Display| It will display 1) In Run Mode Present Value of Relative humidity is displayed. 2)In Config and Control list the main header list will be displayed.
3| DH| Dry Heater or Heater Output indications.
4| WH| Wet Heater or Humidity Heater output indication.
5| CP| Compressor Output indication.
6| TA| Temperature alarm indication.
7| HA| HumidityAlarm indication.
8| WL| Water Level error indication.
9| | 1) To save the parameters and value. 2) Along with UP key to enter the parameters list.
10| | 1) To shift the digits while changing the parameter values. 2) To enable tuning of temperature and relative humidity. 3) Along with SET key can be used to return to run mode when in parameter list.
11| | 1) To decrease value or browse through parameters. 2) To acknowledge Humidity Alarm.
12| | 1) To increase value or browse through parameters. 2) Along with SET key to enter the parameters list. 3) To acknowledge Temperature Alarm.

Overall Dimensions & Panel Cutout(in mm):-

USER LIST :

1. To enter in this mode press SET key once.
2. To change the parameter value press UP or DOWN key.
3. To save the changes and move on to next parameter press SET key once.

Parameter| Lower Display| Upper Display| Range| Description| Default
---|---|---|---|---|---
Temp. Set Point| | | LSPL- HSPL| User can change the Temperature Set Point value using UP/ DOWN and SHIFT keys. Holding the key will change the value at a faster rate. Press SET key to store the desired value.| 0°C
rH Set Point| | | LSPL-HSPL| User can change the Relative Humidity value using UP/ DOWN and SHIFT keys. Holding the key will change the value at a faster rate. Press SET key to store the desired value.| 0°C
Temp. Alarm Set Point| | | LSPL- HSPL – 99 to +99°C 2 to 99°C| This parameter is prompted if t.AL is Enable and is configured as
(1)Alarm (High/Low) mode.
(2)As a deviation alarm mode.
(3)As a band alarm.| 0°C
rH Alarm Set Point| | | LSPL-HSPL -99 to +99°C
2 to 99°C| This parameter is prompted if rH.AL is Enable and is configured as (1 )Alarm (High/Low) mode.
(2)As a deviation alarm mode.
(3) As a band alarm.| 0°C

Header Parameter List

HEADER PARAMETER LIST :

1. To enter in this mode press SET & UP key together for 3 seconds.
2. To browse through the parameters press UP & DOWN key.
3. To enter in the sub-parameter list press SET key once.
4. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Lock Code| | | Set this parameter to 15 (Default LOCK CODE) to access Header List.
User has a choice to set different Lock Code via USER LOCK CODE in Supervisory parameters List.| 15
Header List| | | T.CFG :- By entering this Header List user will be able to access all the Temperature related Configuration parameters listed on Page no. 4| T.CFG
H.CFG :- By entering this Header List user will be able to access all the Relative Humidity related Configuration parameters listed on Page no. 6
T.CTR :- By entering this Header List user will be able to access all the Temperature related Control parameters listed on Page no. 8
H.CTR :- By entering this Header List user will be able to access all the Relative Humidity related Control parameters listed on Page no. 9
COMP :- By entering this Header List user will be able to access all the Compressor related Control parameters listed on Page no. 10
T.ALM :- By entering this Header List user will be able to access all the Temperature related Alarm parameters listed on Page no. 11
H.ALM :- By entering this Header List user will be able to access all the Relative Humidity related Alarm parameters listed on Page no. 12
SUPR :- By entering this Header List user will be able to access all the Supervisory parameters listed on Page no. 13
d.IP :- By entering this Header List user will be able to access all the Digital Input related parameters listed on Page no. 14
COMM :- By entering this Header List user will be able to access all the Communication related parameters listed on Page no. 15

Temperature Config List (t.CFG)

TEMPERATURE CONFIGURATION LIST :

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec. (6) To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Temp. Input Types| | | ‘RTD’ :- If selected, instrument will accept temperature input from PT-100 sensor at rear
terminal. Below LSPL it will display ‘LLLL’ message & above HSPL it will display ‘HHHH’.| RTD.1
‘RTD.1’ :- If selected, instrument will accept temperature input from PT-100 sensor at rear terminal. Below LSPL it will display ‘LLLL’ message & above HSPL it will display ‘HHHH’.
‘0 – 1’ :- If selected, instrument will accept 0 – 1VDC input at rear terminal. Below OV it will display ‘CELL’ message & above 1V it will display ‘HHHH’.
‘0 – 10’ :- If selected, instrument will accept 0 – 10VDC input at rear terminal. Below OV it will display ‘LILL’ message & above WV it will display ‘HHHH’.
‘0 – 20’ :- If selected, instrument will accept 0 – 20 mA input at rear terminal. Below 0 mA it will display ‘LLLL’ message & Above 20 mA it will display ‘HHHH’.
‘4 • 20’ :- If selected, instrument will accept 4 – 20mA input at rear terminal. Below 3.8mA it will display ‘LLII message & Above 20mA it will display ‘HHHH’. If input is less than 3.2mA it will display ‘L.BRK'(Loop Break) message.
Temp. Input Signal Low| | | This parameter will only be prompted if Input type is analog signal. The value set over here becomes the minimum value for input analog signal.| 0.00
Temp. Input Signal High| | | This parameter will only be prompted if Input type is analog signal. The value set over here becomes the maximum value for input analog signal.| 20.00
Temp. Range
Resolution| | | This parameter will only be prompted if Input type is analog signal.
By this parameter user can select mange Hes°!upon tor anatog input, i.e. “0.000, 0.00. 0.0. 0” For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 0
Temp. Analog
Input Low Value| | | This parameter will only be prompted if Input type is analog signal. By this parameter user can define Low scale for input signal. Which can be in between ‘-1999 to Ai.Hi’. For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 0
Temp. Analog Input High Value| | | This parameter will only be prompted if Input type is analog signal. By this parameter user can define HIGH scale for input signal. Which can be in between ‘Ai.Lo to 9999’. For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 1000
Temp. Display
Resolution| | | This parameter will only be prompted if Input type is analog signal.
By this parameter user can select Display resolution which is to be shown on Display i.e. “0.000. 0.00. 0.0. 0”.
For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 0
Temp.Lower| | | This parameter will only be prompted if Input type is RID or RTD.1. Sets the minimum limit for set point adjustment. It can be set from minimum specified range of selected sensor to HSPL value.
For range limit as per sensor selected Ref. Table No.1 (Page No. 18).| 0°C
Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Temp. Higher
SP Limit| | | This parameter will only be prompted if Input type is RTD or RTD.1. Sets the maximum limit for set point adjustment. It can be set from LSPL value to maximum specified range of selected sensor.
For range limit as per sensor selected Ref. Table No.1 (Page No. 18).| 400 “C
Temp. Process Value Offset| | | Function of this parameter is to add/subtract a constant value to the measured PV to obtain Final PV.| 0
Temp. Input
Filter| | | Controller is equipped with an adaptive digital filter which is used to filter out any extraneous pulses on the PV. Filtered PV Value is used for all PV dependent functions. If PV signal is fluctuating due to noise, increase the filter time constant value.| 4
Temp. User Low Calib- ration| | | This parameter will be prompted only if input type is selected as Analog Input. By this parameter user can adjust Lower calibration for Selected Volt type.| 0
Temp. User High
Calib- ration| | | This parameter will be prompted only if input type is selected Analog Input. By this parameter user can adjust Higher calibration for Selected Volt type.|
Temp. User Calib- ration Default| | | This parameter will be prompted only if input type is Analog Input.
If “Yes” Selected, User Calibration will be replaced with Factory Calibration.| No
If ‘No” Selected, No change in User Calibration.

Humidity Config List (H.CFG)

HUMIDITY CONFIGURATION LIST :

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Humidity Input Types| | | ‘0 – 1’ :- If selected, instrument will accept 0 – 1VDC input at rear terminal.| 0∼3.3volt
‘0 – 3.3’ :- if selected, instrument will accept 0 – 3.3VDC input at rear terminal.
‘RH•20’ :- If selected, instrument will accept 1.1 – 3.6VDC input at rear terminal. Ref. Sensor Table on Page No. 7
—3.3 ‘RH-35’ :- If selected, instrument will accept 1.1 – 3.6VDC input at rear terminal.
Ref. Sensor Table on Page No. 7
Volt ‘0 • 5’ :• If selected, instrument will accept 0 – 5VDC input at rear terminal.
‘0 – 10’ :- If selected, instrument will accept 0 • 10VDC input at rear terminal.
‘0 – 20’ :- If selected, instrument will accept 0 • 20 mA input at rear terminal.
‘4 – 20’ :- If selected, instrument will accept 4 – 20mA input at rear terminal. If input is less than 3.2mA it will display ‘L.BRK'(Loop Break) message.
Humidity Input Signal Low| | | This parameter will only be prompted if Input type is analog signal. The value set over here becomes the minimum value for input analog signal.| 0.00
Humidity
Input Signal Mgt| | | This parameter will only be prompted if Input type is analog signal. The value set over here becomes the maximum value for input analog signal.| 20.00
Humidity Range Resolution| | | This parameter will NOT be prompted when input type is selected as RTD.
By this parameter user can select Range Resolution for analog input, i.e. “0.000. 0.00. 0.0. 0” For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 0
Humidity Analog Input Low Value| | | By this parameter user can define Low scale for input signal. Which can be in between ‘-1999 to Ai. Hi’.
For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 0
Humidity
Analog Input
High Value| | | By this parameter user can define HIGH scale for input signal. Which can be in between ‘Ai. Lo to 9999’.
For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 1000
Humidity Display Resolution| | | This parameter will NOT be prompted when input type is selected as RTD.
By this parameter user can select Display resolution which is to be shown on Display i.e. “0.000, 0.00, 0.0, 0”. For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 0
Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Humidity Lower
SP Limit| | | This parameter will only be prompted if Input type is RTD or RTD.1. Sets the minimum limit for set point adjustment. It can be set from minimum specified range of selected sensor to HSPL value. For range limit as per sensor selected Ref. Table No.1 (Page No. 18).| °C
Humidity Higher
SP Limit| | | This parameter will only be prompted if Input type is RTD or RTD.1. Sets the maximum limit for set point adjustment. It can be set from LSPL value to maximum specified range of selected sensor.
For range limit as per sensor selected Ref. Table No.1 (Page No. 18).| 400°C
Humidity Process Value Offset| | | Function of this parameter is to add/subtract a constant value to the measured PV to obtain Final PV.
For range limit as per resolution selected Ref. Table No.2 (Page No. 18).| 0
Humidity Input Filter| | | Controller is equipped with an adaptive digital filter which is used to filter out any extraneous pulses on the PV. Filtered PV Value is used for all PV dependent functions. If PV signal is fluctuating due to noise, increase the filter time constant value.| 4
Humidity User Low Calibration| | | This parameter will be prompted only if selected input type is Analog Input. By this parameter user can adjust Lower calibration for Selected Volt type.| 0
Humidity User High Calibration| | | This parameter will be prompted only if selected input type is Analog Input. By this parameter user can adjust Higher calibration for Selected Volt type.| 0
Humidity User Calibration Default| | | This parameter will be prompted only if selected input is Analog Input.
If “Yes” Selected, User Calibration will be replaced with Factory Calibration.| No
If No Selected, No change in User Calibration.

Humidity Sensor Table :

Temperature Control List (t.Ctr)

TEMPERATURE CONTROL LIST :

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Output 1 Type| | | This parameter is a VIEW ONLY parameter. User will come to know the Output type for temperature. Output type as Relay , SSR , mA.| Relay
mA Output Type| | | This parameter will be prompted only if factory set control output is “mA”. If “0-20” Selected, Control Output will be 0-20 mA.| 4∼20
mA
If “4-20” Selected. Control Output will be 4-20 mA.
Output 1 User
Calib. Low| | | This parameter will be prompted only if selected control action is PID. It sets bandwidth over which the output power is adjusted depending upon the error (SV-PV). The value of this parameter is automatically set by Auto tune function.| 16.70
Output 1 User Calib. High| | | This parameter will be prompted only if selected control action is PID. It sets bandwidth over which the output power is adjusted depending upon the error (SV-PV). The value of this parameter is automatically set by Auto tune function.| 85.50
mA Default| | | This parameter will be prompted only if factory set control output is “mA”.
If “Yes” Selected. User Calibration will be replaced with Factory Calibration.|
No If “No” Selected, No change in User Calibration.
Control Mode| | | User can select between PID or ON-OFF action algorithm to be adopted for output.
If Factory set Control output is “mA” then Control mode as PID Selected & this parameter will be Skipped.| PID
Control Logic
For Output 1| | | This parameter will be prompted only if selected control mode is ON-OFF. User can select heating logic in which OP1 will remain ON till PV < SP. (PV increases when output is ON.)| Heat
This parameter will appear only if selected control mode is ON-OFF. User can select cooling logic in which OP1 will remain ON till PV > SP (PV decreases when output is ON.)
Proportional Band| | | This parameter will be prompted only if selected control action is PID It sets bandwidth over which the output power is adjusted depending upon the error (SV-PV). The value of this parameter is automatically set by Auto tune function.| 5.0°C
Integral Time| | | This parameter will be prompted only if selected control action is PID It sets the time taken by PID algorithm to remove steady state error. Value of this parameter is automatically set by Auto Tune function. If set to ‘0’. this function will be disabled.| 240
Derivative Time| | | This parameter will be prompted only if selected control action is PID. It defines how strongly the Controller will react to the rate of change of PV. Value of this parameter is automatically set by Auto Tune function. If set to ‘0% this function will be disabled.| 60
Cycle Time| | | This parameter will be prompted only if selected control action is PID. User can set this value based on process being controlled 8 type of Output being selected. For Relay 0/P, cycle time should be more 12 sec & for SSR 0/P. cycle time should be less than l0 sec.| 16.0 sec
Soft Start Time| | | This parameter will be prompted only if factory set control output is ‘mA’. The soft start function suppresses the mA to become max. output. It places an upper limit on mA output for a specified amount of time after power on.| 50 Sec.
Control Hy1s.| | | This parameter will be prompted only if selected control action is ON-OFF. It sets the dead band between ON & OFF switching of the Output. Larger value of hysteresis minimize the number of ON-OFF operation of load.This increases life of actuators like contactors but also produces large errors (between PV & SV).| 2°C
Delay 1| | | This parameter will be prompted only if selected control action is ON-OFF. It sets the main output restart time where 0/P once turned OFF will turn ON only after restart time, regardless difference between PV B SP in Heat or Cool mode. If set to ‘0’, 0/P will be switched without delay. Also, Delay will be applicable in case of every power ON.| 0 Sec.
Output Power Li| | | This parameter will be prompted only if selected control action is PID. This parameter will decide the maximum output power in % applied to the load.| 100%
Gap 1| | | SP (set point) will be consider as (t.SP – LGP 1) for heating.| 0 °C

Humidity Control List (H.Ctr)

HUMIDITY CONTROL LIST:

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Output 2 Type| | | This parameter is a VIEW ONLY parameter. User will come to know the Output type for temperature. Output type as Relay , SSR , mA.| Relay
mA Output Type| | | This parameter will be prompted only if factory set control output is -mA”. If “0-20” Selected, Control Output will be 0-20 mA.| 4∼20 mA
If “4-20” Selected, Control Output will be 4-20 mA.
Output 2 User Calib. Low| | | This parameter will be prompted only if selected control action is PID. It sets bandwidth over which the output power is adjusted depending upon the error (SV-PV). The value of this parameter is automatically set by Auto tune function.| 16.70
Output 2 User Calib. High| | | This parameter will be prompted only if selected control action is PID. It sets bandwidth over which the output power is adjusted depending upon the error (SV-PV). The value of this parameter is automatically set by Auto tune function.| 85.50
mA Default| | | This parameter will be prompted only if factory set control output is “mA”.
If “Yes” Selected, User Calibration will be replaced with Factory Calibration.| No
If “No” Selected, No change in User Calibration.
Control Mode| | | User can select between PID or ON-OFF action algorithm to be adopted for output.
If Factory set Control output is “mA” then Control mode as PID Selected & this parameter will be Skipped.| PID
Control Logic
For Output 2| | | This parameter will be prompted only if selected control mode is ON-OFF. User can select heating logic in which OP1 will remain ON till PV < SR (PV increases when output is ON.)| Heat
This parameter will appear only if selected control mode is ON-OFF. User can select cooling logic in which OP1 will remain ON till PV > SP. (PV decreases when output is ON.)
Proportional Band| | | This parameter will be prompted only if selected control action is PID. It sets bandwidth over which the output power is adjusted depending upon the error (SV-PV). The value of this parameter is automatically set by Auto tune function.| 5.0°C
Integral Time| | | This parameter will be prompted only if selected control action is PID. It sets the time taken by PID algorithm to remove steady state error. Value of this parameter is automatically set by Auto Tune function. If set to ‘0’, this function will be disabled.| 240
Derivative Time| | | This parameter will be prompted only if selected control action is PID. It defines how strongly  the Controller will react to the rate of change of PV. Value of this parameter is automatically set by Auto Tune function. If set to ‘0’, this function will be disabled.| 60
Cycle Time| | | This parameter will be prompted only if selected control action is PID. User can set this value based on process being controlled & type of Output being selected. For Relay O/P. cycle time should be more 12 sec & for SSR O/P. cycle time should be less than 10 sec.| 16.0 sec
Soft Start Time| | | This parameter will be prompted only if factory set control output is “mA”. The soft start function suppresses the mA to become max. output. It places an upper limit on mA output for a specified amount of time after power on.| 50 Sec.
Control Hys. 2| | | This parameter will be prompted only if selected control action is ON-OFF. It sets the dead band between ON & OFF switching of the Output. Larger value of hysteresis minimize the number of ON-OFF operation of Load. This increases life of actuators like contactors but also produces large errors (between PV & SV).| 2°C
Delay 2| | | This parameter will be prompted only if selected control action is ON-OFF. It sets the main
output restart time where O/P once turned OFF will turn ON only after restart time, regardless difference between PV & SP in Heat or Cool mode. If set to ‘0’, O/P will be switched without delay. Also. Delay will be applicable in case of every power ON.| 0 Sec.
Output Power Limit| | ****| This parameter will be prompted only if selected control action is PID. This parameter will decide the maximum output power in % applied to the load.| 100 %

Compressor List (COMP)

COMPRESSOR LIST:

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
OP 3 Type| | | This parameter is a VIEW ONLY parameter. User will come to know the Output type for temperature. Output type as Relay , SSR .| Relay
Comp. Mode| | | OP 3 will be automatically activated /de-activated w.r.t SP 1 & HYS.| Auto
OP 3 will be permanently Activated (ON).
OP 3 will be permanently De-Activated (OFF).
Comp. Higher Cut-Off Limit| | | Compressor will be continuously OFF above this temperature irrespective of the mode selected.| 40 °C
Comp. Lower Cut-Off Limit| | | Compressor will be continuously OFF below this temperature irrespective of the mode selected.| -20°C
Comp. Set Point| | | SP (set point) will be consider as (t.SP + CP.SP) for cooling.| 0 °C
Comp. Hysteresis| | | It sets the dead band between ON & OFF switching of the Output. Larger value of hysteresis minimize the number of ON-OFF operation of load.This increases life of actuators like contactors but also produces large errors (between PV & SV).This parameter will only be prompted when compressor mode is selected as AUTO.| 2°C
Comp. Delay| | ****| It sets the main output restart time where 0/P once turned OFF will turn ON only after restart time, regardless difference between PV & SP in Heat or Cool mode. If set to ‘0’, 0/P will be switched without delay. Also, Delay will be applicable in case of every power ON. This parameter will not be displayed when compressor mode is selected as OFF.| 90 Sec.

Temperature Alarm List (t.ALM)

TEMPERATURE ALARM LIST:

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Alarm Type| | | | Deviation
Alarm Logic| | | If this parameter is set as ‘Direct’, Relay/SSR energizes under Alarm condition & remains De-energized otherwise. ‘Direct setting is generally used for Audio/Visual Alarm Output.| Direct
If this parameter is set as ‘Reverse’, Relay/SSR De-energizes under Alarm condition & remains energized otherwise. ‘Reverse’ setting is generally used for tripping the process under Alarm condition.
Alarm Inhibit| | | This parameter can be used to inhibit (suppress) the Alarm activation upon power-up conditions by setting the parameter value to YES’. From Power-up, the Alarm system remains disabled until PV is found with in the limits.| No
If Alarm activation is desired even under Power-up condition, Set this parameter value to
Alarm Ack.| | | Once Alarm is activated, user has following three options to de-activate it.
When PV falls within the programmed limits, Alarm will be de-activated automatically.| Auto
Once Alarm is activated, it remains activated until manually acknowledged by UP key.
Once Alarm is activated, it can be de-activated either by pressing UP key or when PV falls within the alarm limits.
Alarm Hysteresis| | | This parameter will be prompted only if selected control action is ON-OFF. It sets the dead band between ON & OFF switching of the Output. Larger value of hysteresis minimize the number of ON-OFF operation of load.T his increases life of actuators like contactors but also produces large errors (between PV & SV).| 2°C

Humidity Alarm List (H.ALM)

HUMIDITY ALARM LIST:

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Alarm Type| | | | Deviation
Alarm Logic| | | If this parameter is set as ‘Direct’, Relay/SSR energizes under Alarm condition & remains De-energized otherwise. ‘Direct’ setting is generally used for Audio/Visual Alarm Output.| Direct
If this parameter is set as ‘Reverse’, Relay/SSR De-energizes under Alarm condition & remains energized otherwise. ‘Reverse’ setting is generally used for tripping the process under Alarm condition.
Alarm Inhibit| | | This parameter can be used to inhibit (suppress) the Alarm activation upon power-up conditions by setting the parameter value to ‘YES”. From Power-up, the Alarm system remains disabled until PV is found with in the limits.| No
If Alarm activation is desired even under Power-up condition, Set this parameter value to ‘NO’.
Alarm Ack.| | | Once Alarm is activated, user has following three options to de-activate it.
When PV falls within the programmed limits, Alarm will be de-activated automatically.| Auto
Once Alarm is activated, it remains activated until manually acknowledged by DOWN key.
Once Alarm is activated, it can be de-activated either by pressing UP key or when PV falls within the alarm limits.
Alarm Hysteresis| | | This parameter will be prompted only if selected control action is ON-OFF. It sets the dead band between ON & OFF switching of the Output. Larger value of hysteresis minimize the number of ON-OFF operation of Load. This increases life of actuators like contactors but also produces large errors (between PV & SV).| 2°C

Supervisory parameter List (SUPr)

SUPERVISORY PARAMETER LIST:

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Auto Tune| | | This parameter will be prompted only if selected control action is PID.
If Enabled, this parameter will be prompted if user press Shift key for 3Sec.| Enable
If Disabled, this parameter will not be prompted if user press Shift key for 3Sec.
Temp. Set Point| | | If Enabled, User can View & edit the Set point (t.SP) in USER list.| Enable
If disabled, User can not View or edit Set Point (t.SP) in USER list.
Humidity Set Point| | | If Enabled, User can View & edit the Set point (rH.SP) in USER list.| Enable
If disabled, User can not View or edit Set Point (rH.SP) in USER list.
Temp. Alarm Set Point| | | If Enabled, User can View & edit the Temp. Alarm (t.AL) Set point in USER list.| Enable
If disabled, User can not View or edit the Temp. Alarm(t.AL) Set Point in USER list.
Humidity Alarm Set Point| | | If Enabled, User can View & edit the humidity Alarm (rH.AL) Set point in USER list.| Enable
If disabled, User can not View or edit the humidity Alarm (rH.AL) Set Point in USER list.
User Lock Code| | | Default USER LOCK CODE is 15 to access Control & Configuration List.
User has a choice to set its own USER LOCK CODE between 1 to 9999, this is to prevent unauthorized access of Control & Configuration List.| 15

Digital Input List (d.IP)

DIGITAL INPUT LIST :

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Digital Input Function| | | This parameter helps in selecting the functionality of Digital Input 1. When NONE is selected Digital Input 1 will be permanently de-activated.| None
When this parameter is selected Digital Input 1 can be used as Water Level indicator input.
Water Level Logic| | | This parameter will only be prompted when Digital Input 1 function is selected as Water Level (WA.LL). This will give alarm when the water level is open.| Open
This will give alarm when the water level is close.
Digital Input 2 Function| | | This parameter helps in selecting the functionality of Digital Input 2. When NONE is selected Digital Input 2 will be permanently de-activated.| None
By selecting this parameter Digital Input 2 can be used to acknowledge alarm.
By selecting this parameter Digital Input 2 can be used to detect whether the door is open or closed.

Communication parameter List (COMM)

COMMUNICATION PARAMETER LIST:

1. To browse through the parameters press UP & DOWN key.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN once entered in edit mode.
4. To save the changes press SET key once.
5. To go back to the main header parameter press SHIFT key for 3 sec.
6. To come back to the Run mode press SHIFT and SET key together for 3 sec.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Device ID Number 1| | | Set device id for communication.
Range:- 1 to 9999
Note :- This device id is for Temperature.| 1
Device ID Number
2| | ****| This is a VIEW ONLY parameter. This device id is for Humidity. The device id for humidity will be the very next id after temperature device id.| 2
Baud Rate| | | By this parameter user can select baud rate for communication purpose.| 9600
Parity| | | By this parameter user can select parity for communication purpose.| 0_81
| | | |

Auto-Tuning List

AUTO-TUNING LIST:

1. To enter in this mode press SHIFT key for 3 sec.
2. To enter in the edit mode press SHIFT key once, blinking of parameter value will indicate edit mode.
3. To change the parameter value press UP or DOWN key.
4. To save the changes press SET key once.

Parameter| Lower Display| Upper Display| Description| Default
---|---|---|---|---
Temp Auto, Tuning Mode| | | This function will be executed only if selected control action is PID.
Auto-tuning function is enabled by setting this parameter to ‘YES’. The AT 1 led continuously
flashes till Auto tuning function is in progress. During Auto-tuning, Controller learns the process characteristics by itself & calculates required P, I & D values. User can cancel or abort this feature by setting this parameter to ‘NO’.| No
Auto Tuning Mode| | | This function will be executed only if selected control action is PID.
Auto-tuning function is enabled by setting this parameter to ‘YES’. The AT 2 led continuously
flashes ill Auto tuning function is in progress. During Auto-tuning, Controller learns the process characteristics by itself & calculates required P, I & D values. User can cancel or abort this feature by setting this parameter to ‘NO’| No

Table 1 :- Range of Different Sensor Types.

Table 2 :- Range as per Resolution.

Resolution| Analog Input High / Low| Process Value Offset| Alarm Band| Alarm Hysterisis
---|---|---|---|---
0000| -1999 to 9999| -25 to 25| -50 to 50| 1 to 25
000.0| -199.9 to 999.9| -25.0 to 25.0| -50.0 to 50.0| 0.1 to 25.0
00.00| -19.99 to 99.99| -15.00 to 25.00| -19.00 to 50.00| 0.01 to 25.00
0.000| -1.999 to 9.999| -1.500 to| -1.900 to 5.000| 0.001 to 2.500

Error Message:-

message.
“LLLL”| RTD or RTD.1| If input is below LSPL it will display “LLLL” message.
“LLLL”| 0∼20 / 0∼10| If input is below ‘0’ it will display “LLLL” message.
“LLLL”| 4∼20| If input is below “3.8mA” and above “3.2mA” it will display “LLLL” message.
“L.BRK”| 4∼20| If input is less than “3.2mA” it will display “L.BRK” (Loop Break) message.
“C.E.R.R.”| Any Input Selected| The device is out of calibration and need to be sent to factory for re-calibration.

https://www.youtube.com/channel/UCzWGtv0HuHUgZR4KKRyKG1w/videos

Mfgd by: Innovative Instruments & Controls LLP
338, New Sonal Link Service Industrial Premises Co-op Society Ltd,
Building No.2, Link Road, Malad (W), Mumbai – 400064
Tel: 022-66939916/17/18;
E-mail: sales@itherm.co.in
Website: www.itherm.co.in

References

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