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Section 1

The controller front panel comprises of digital readouts, LED indicators and tactile keys as shown in Figure 1.1 below.

INDICATORS

There are 5 front panel red LED indicators. These indicator show various statuses. The Table 1.1 below lists each LED

indicator (identified by the front panel legend) and the associated status it indicates.

READOUTS

The Upper Readout is a 4 digit, 7-segment bright red LED display and usually displays the Temperature Value in °C. In

Program Mode, the Upper Readout displays parameter values.

The Lower Readout is a 4 digit, 7-segment bright green LED display and usually displays Relative Humidity (RH) Value in %. In

Program Mode, the Lower Readout displays prompts for the parameters.

The indications on the Upper and Lower Readouts, in general, depend on the mode of operation and parameters

configuration. Refer respective sections for more details.

Table 1.1

Indicator

Function

Indicates Output-1 (Temperature) control ON/OFF status.
• Glows if the Temperature control Output is ON.
• Remains OFF if the Temperature control Output is OFF.

Indicates Output-2 (RH) control ON/OFF status.
• Glows if the RH control Output is ON.
• Remains OFF if the RH control Output is OFF.

Indicates Alarm-1 ( Alarm for Temperature Loop) status.
• Flashes while the Alarm for Temperature Loop is active.
• Remains OFF while the Alarm for Temperature Loop is inactive.

1

2

AL1

User Manual

HumiTherm-c (Temp+RH)

Figure 1.1

Upper Readout

Lower Readout

Alarm-2 Indicator

ENTER Key

UP Key

DOWN Key

PAGE Key

Alarm -1 Indicator

Tune Indicator

Output-1 Indicator

Output-2 Indicator

PPI

HumiTherm-c

AL1

TUN

AL2

1

2

°C

%RH

Indicates Alarm-2 ( Alarm for RH Loop) status.
• Flashes while the Alarm for RH Loop is active.
• Remains OFF while the Alarm for RH Loop is inactive.

AL2

FRONT PANEL LAYOUT

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Содержание HumiTherm-c Dry-Bulb RTD Pt100

Страница 1: ...mposite Temperature Humidity Self Tune PID Controller Version Dry Bulb RTD Pt100 3 wire Wet Bulb RTD Pt100 3 wire User Manual HumiTherm c Version RTD Pt100 3 wire for Temperature DC Linear Voltage for Humidity ...

Страница 2: ...R INDIC 10 HARDWAREASSEMBLY CONFIGURATIONS 15 11 MECHANICALINSTALLATION 19 12 ELECTRICALCONNECTIONS 20 1 FRONT PANELLAYOUT 24 2 BASIC OPERATION 26 3 PAGESAND PARAMETERS 28 4 TEMPERATURE PARAMETERS 31 5 RELATIVE HUMIDITY PARAMETERS 32 6 SUPERVISORYPARAMETERS 33 7 OP3 FUNCTION PARAMETER 34 8 UTILITYPARAMETERS 35 9 38 COMPRESSOR OPERATIONAND POWER INDIC 10 HARDWAREASSEMBLY CONFIGURATIONS 39 11 MECHAN...

Страница 3: ...on Refer respective sections for more details Figure 1 1 Upper Readout Lower Readout Alarm 2 Indicator ENTER Key UP Key DOWN Key PAGE Key Alarm 1 Indicator Tune Indicator Output 1 Indicator Output 2 Indicator PPI HumiTherm c AL1 TUN AL2 1 2 C RH Table 1 1 Indicator Function Indicates Output 1 Temperature control ON OFF status Glows if the Heater Output is ON Remains OFF if the Heater Output is OFF...

Страница 4: ... 2 Symbol Key Function Press to enter or exit set up mode DOWN UP ENTER Press to store the set parameter value and to scroll to the next parameter on the PAGE Press to increase the parameter value Pressing once increases the value by one count keeping pressed speeds up the change Press to decrease the parameter value Pressing once decreases the value by one count keeping pressed speeds up the chan...

Страница 5: ...ture in C SETPOINTADJUSTMENTS Refer Section 3 Pages Parameters for details on Set up Mode For ease of operation the Temperature and Relative Humidity RH Setpoints SP are provided on PAGE 0 The Setpoints can be adjusted if permitted at supervisory level PAGE 12 Step through the following sequence to adjust the SPvalue 1 Press PAGE key while the controller is in MAIN Display Mode The Lower Readout s...

Страница 6: ...uning is in progress The TUN indicator automatically turns OFF upon completion of Tuning Procedure The controller reverts to the MAIN Display Mode and starts maintaining the Temperature and RH values PV at their respective Setpoints PV ERROR INDICATIONS The controller indicates the PV error messages for both Temperature and RH Values on Upper and Lower Readout respectively in the following conditi...

Страница 7: ...eter values Figure 3 1 PAGES AND PARAMETERS 1 Press and release PAGE key The Lower Readout shows PAGE and the Upper Readout shows 0 See Figure 3 1 2 Adjust the Upper Readout to the desired PAGE NUMBER using the UP DOWN keys 3 Press and release ENTER key The Lower Readout shows the prompt for the first parameter listed in the PAGE and the Upper Readout shows its current value Note If the entered PA...

Страница 8: ... controller automatically exits the Program Mode and returns to the MAIN Display Mode PARAMETER LOCKING Though access to any PAGE is always permitted the adjustment of the parameter values however can be Locked at the supervisory level If the Lock is enabled the parameter values on each PAGE can only be viewed but can not be adjusted This feature facilitates protecting the parameter values from un...

Страница 9: ...is shipped from the factory with all the parameters set to their default factory set values If desired all the parameters can be reset to default values by following the steps below 1 Ensure that the controller is Unlocked for parameter adjustments 2 Press and release PAGE key while the controller is in the MAIN Display Mode The Lower Readout shows PAGE and the Upper Readout shows 0 3 Adjust the U...

Страница 10: ...N and OFF states of Alarm 1 Sets proportional gain power per unit error for temperature control loop Defined in same units and resolution as that for PV PROPORTIONAL BAND Sets integral time constant in seconds for temperature control loop Setting the value to 0 cuts off the integral action INTEGRAL TIME 0 to 1000 Seconds Default 100 Default 5 0 0 1 to 999 9 C Default 1 0 0 5 to 25 0 Seconds in ste...

Страница 11: ...activation Example If Band 2 0 RH then HighAlarm Limit SP 2 0 RH LowAlarm Limit SP 2 0 RH PROPORTIONAL BAND Sets proportional gain power per unit error for RH control loop Defined in same units and resolution as that for PV INTEGRAL TIME Sets integral time constant in seconds for RH control loop Setting the value to 0 cuts off the integral action Default 25 0 to 250 Seconds Default 1 0 0 5 to 25 0...

Страница 12: ...on for Temperature and RH setpoint editing on Operator Page PAGE 0 Set to Enable for permission Default 1 1 to 8 Default 4800 ID FOR TEMPERATURE LOOP Communication ID used by host for temperature value Default 2 1 to 8 ID FOR RH LOOP Communication ID used by host for RH value Default Enable Disable Enable Parameter Description Settings Default Value SELF TUNE COMMAND Set to Yes to initiate a new t...

Страница 13: ...trol Strategy is set to Dry Bulb PV Sets differential dead band between Compressor switching ON and OFF states Refer section 8 for details Available only if OP3 function is selected as Compressor The setpoint value with which either the Dry Bulb temperature SP or PV is compared for the purpose of switching the compressor On Off Refer section 8 for details COMPRESSOR SETPOINT OUTPUT 3 FUNCTION SELE...

Страница 14: ...ult Value COMPRESSOR CONTROL STRATEGY Refer detailed description below Compressor Control Strategy The controller offers two different control algorithms for switching the compressor through Output 3 OP3 Relay SSR module using the parameter Compressor Control Strategy The two strategies are explained below Note that either strategy operates switches ON OFF the OP3 only if the parameter OP3 Functio...

Страница 15: ...in PAGE 13 parameter list The Compressor ON or OFF state is determined by comparing the Dry Bulb PV with the Compressor Switch on Level and the Compressor Switch off Level The Compressor Switch on and Switch off levels are determined using Dry Bulb SP db SP Compressor Setpoint CP SP and Hysteresis CP HY as below Switch on Level Dry Bulb SP db SP Compressor SP CP SP Switch off Level Switch on Level...

Страница 16: ...FOR RH LOOP OUTPUT POWER FOR TEMPERATURE LOOP WET BULB TEMPERATURE SETPOINT This value is derived using Dry Bulb SP RH SP COMPRESSOR OPERATION MODE If selected as Auto the compressor switching is determined by the controller based on the setting for the parameter Compressor Control Strategy on PAGE 33 The Off or On selection allows the operator to manually switch the compressor OFF or ON regardles...

Страница 17: ... Pullout Grip Enclosure Connection Diagram Rear Terminals Ventilations Ratchets Panel Mounting Clamp Panel Sealing Gasket Bezel P P I Hum iTherm c AL1 TUN AL2 1 2 RH C Hum iTherm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 5V OC2 OC1 OUTPUT 1 2 Pt100 INPUT 1 OUTPUT 3 RH SENSOR SERIAL COMMS SSR RELAY N O N C C P P I L N AC DC SUPPLY Ex INPUT 2 _ ELECTRONICASSEMBLY The electronic assembly can be re...

Страница 18: ...opside Insert the bezel gently with the boards on either side sliding into the guides provided inside of the Enclosure 3 Ensure that the bezel fits in tight on the Enclosure front to secure the panel sealing gasket The Figure 10 3 below shows the basic electronics assembly of the controller without plug in modules The basic electronics assembly comprises of 3 Printed Circuit Boards As shown in the...

Страница 19: ... module and the jumper arrangement Figure 10 4 As shown in above Figure there are 2 jumper arrangements markedAand B The selection between Relay and SSR requires both these jumpers A and B to be set appropriately as shown in Table 10 1 below The double headed arrows show the adjoining Pins that require shorting using the Link Table 10 1 Output Type Jumper Setting A Jumper Setting B SSR Voltage Pul...

Страница 20: ...l the module outward to unlock the socket from the plug Serial Communication Module The plug for the Serial Communication module is located on the Power supply board The Figure 10 6 below illustrates how to plug in the Serial Communication module To plug or unplug the module simply insert or remove the socket into or from the plug Mounting Serial Communication Module Figure 10 6 User Manual HumiTh...

Страница 21: ... the springs of the clamp push firmly against the rear face of the mounting panel for secured mounting The Figure 11 1 shows the controller front outer dimensions and the panel cutout requirements for a single controller and also the minimum spacing recommended if several controllers are required to be mounted on a single panel Figure 11 1 MECHANICAL INSTALLATION OUTER DIMENSIONS AND PANEL CUTOUT ...

Страница 22: ... to high voltage surges of extended duration or short circuits on loads 5 Take care not to over tighten the terminal screws while making connections 6 Make sure that the controller supply is switched off while making removing any connections or removing the controller from its enclosure CONNECTION DIAGRAM The Electrical Connection Diagram is shown on the left side of the enclosure The diagram show...

Страница 23: ...R respectively OR to the relay coil HUMIDIFICATION Terminals 5 6 Connect terminals 6 5 to SSR respectively OR to the relay coil Figure 12 3 6 5 4 5VDC Voltage for SSR Relay coils Open Collector OC2 for SSR 2 Relay 2 Humidification Open Collector OC1 for SSR 1 Relay 1 Heating OUTPUT 3 Terminals 7 8 and 9 The Output 3 module if fitted can be configured as either Relay or SSR Drive for Alarm or Compr...

Страница 24: ...nal 10 to GND Ground To ensure reliable operation of the Serial Communication Link without data corruption due to line noise or reflections use a pair of twisted wires inside screened cable with the terminating resistor 100 to 150 Ohms at one end as shown in Figure 12 6 below Relay Potential free Relay changeover contacts N O Normally Open C Common and N C Normally Close rated 2A 240 VAC resistive...

Страница 25: ...23 HumiTherm c Temp RH User Manual HumiTherm c Temp RH ...

Страница 26: ...depend on the mode of operation and parameters configuration Refer respective sections for more details Table 1 1 Indicator Function Indicates Output 1 Temperature control ON OFF status Glows if theTemperature control Output is ON Remains OFF if theTemperature control Output is OFF Indicates Output 2 RH control ON OFF status Glows if the RH control Output is ON Remains OFF if the RH control Output...

Страница 27: ...arameter values The Table 1 2 below lists each key identified by the front panel symbol and the associated function Table 1 2 Symbol Key Function Press to enter or exit set up mode DOWN UP ENTER Press to store the set parameter value and to scroll to the next parameter on the PAGE Press to increase the parameter value Pressing once increases the value by one count keeping pressed speeds up the cha...

Страница 28: ...rvisory level PAGE 12 Step through the following sequence to adjust the SPvalue 1 Press PAGE key while the controller is in MAIN Display Mode The Lower Readout shows PAGE and the Upper Readout shows 0 the Temperature Setpoint SP and the Upper 2 Press ENTER key The Lower Readout shows the prompt for C Readout shows the current setpoint value Temperature 3 Use UP DOWN keys to adjust the SPvalue 4 Pr...

Страница 29: ...ning operation if in progress is automatically aborted upon detecting PV Error condition User Manual HumiTherm c Temp RH Tuning operation the front panel indicator TUN flashes The user is advised not to disturb the process or alter any parameter values while the tuning is in progress The TUN indicator automatically turns OFF upon completion of Tuning Procedure The controller reverts to the MAIN Di...

Страница 30: ...meter values PPI HumiTherm c AL1 TUN AL2 1 2 C RH Figure 3 1 PAGES AND PARAMETERS 1 Press and release PAGE key The Lower Readout shows PAGE and the Upper Readout shows 0 See Figure 3 1 2 Adjust the Upper Readout to the desired PAGE NUMBER using the UP DOWN keys 3 Press and release ENTER key The Lower Readout shows the prompt for the first parameter listed in the PAGE and the Upper Readout shows it...

Страница 31: ...e controller automatically exits the Program Mode and returns to the MAIN Display Mode PARAMETER LOCKING Though access to any PAGE is always permitted the adjustment of the parameter values however can be Locked at the supervisory level If the Lock is enabled the parameter values on each PAGE can only be viewed but can not be adjusted This feature facilitates protecting the parameter values from u...

Страница 32: ...is shipped from the factory with all the parameters set to their default factory set values If desired all the parameters can be reset to default values by following the steps below 1 Ensure that the controller is Unlocked for parameter adjustments 2 Press and release PAGE key while the controller is in the MAIN Display Mode The Lower Readout shows PAGE and the Upper Readout shows 0 3 Adjust the U...

Страница 33: ...25 0 C Default 0 2 0 2 to 10 0 C ALARM 1 BAND Sets symmetrical positive and negative deviation offset limits from Temperature control setpoint for both High and Low Alarm 1 activation Example If Band 0 5 C then HighAlarm Limit Setpoint 0 5 C LowAlarm Limit Setpoint 0 5 C ALARM 1 HYSTERESIS Sets differential dead band between ON and OFF states of Alarm 1 Default 25 0 to 250 Seconds Default 1 0 0 5 ...

Страница 34: ...0 RH LowAlarm Limit SP 2 0 RH 0 to 1000 Seconds Default 100 Default 10 0 0 1 to 999 9 INTEGRAL TIME Sets integral time constant in seconds for RH control loop Setting the value to 0 cuts off the integral action PROPORTIONAL BAND Sets proportional gain power per unit error for RH control loop Defined in same units and resolution as that for PV Default 25 0 to 250 Seconds Default 1 0 0 5 to 25 0 Sec...

Страница 35: ...RH setpoint editing on Operator Page PAGE 0 Set to Enable for permission Default 1 1 to 8 Default 4800 Communication ID used by host for temperature value Default 2 1 to 8 ID FOR RH LOOP Communication ID used by host for RH value SUPERVISORY PARAMETERS Default Enable Disable Enable Parameter Description Settings Default Value SELF TUNE COMMAND Set to Yes to initiate a new tuning cycle or set to No...

Страница 36: ...trol Strategy is set to Dry Bulb PV Sets differential dead band between Compressor switching ON and OFF states Refer section 8 for details Available only if OP3 function is selected as Compressor The setpoint value with which either the Dry Bulb temperature SP or PV is compared for the purpose of switching the compressor On Off Refer section 8 for details COMPRESSOR SETPOINT OUTPUT 3 FUNCTION SELE...

Страница 37: ...arameter Description Settings Default Value COMPRESSOR CONTROL STRATEGY Refer detailed description below COMPRESSOR CONTROLSTRATEGY The controller offers two different control algorithms for switching the compressor through Output 3 OP3 Relay SSR module using the parameter Compressor Control Strategy The two strategies are explained below Note that either strategy operates switches ON OFF the OP3 ...

Страница 38: ...essor Set point CP SP and Hysteresis CP HY as below Switch on Level Dry Bulb SP db SP Compressor SP CP SP Switch off Level Switch on Level Hysteresis CP HY The Hysteresis introduces a dead band between the Compressor Switch on Level and Switch off Level The following Figure 8 3 illustrates the compressor ON OFF operation Figure 8 3 Switch on Level Dry Bulb SP Compressor SP Dry Bulb SP OFF Hysteres...

Страница 39: ...3 3 VDC etc The value for Range Low and Range High parameters must be corresponding to 0 and 5 VDC only For this use the following formulae for computing the Range Low and Range High values where Span Signal High Signal Low Example 1 Signal Low 0 VDC Signal High 1 0 VDC Here Span 1 0 0 1 0 VDC Example 2 Signal Low 0 VDC Signal High 3 3 VDC Here Span 3 3 0 3 3 VDC Example 3 Signal Low 1 0 VDC Signa...

Страница 40: ...RESSOR OPERATION POWER INDICATION The PAGE 1 allows the operator to select the compressor switching as Automatic or Manual through a parameter Compressor Operation This parameter is available and applicable only if the Compressor Control is selected for Output 3 OP3 Function in PAGE 13 parameter list The page also facilitates viewing the PID output powers for both Temperature and RH control loops ...

Страница 41: ... Pullout Grip Enclosure Connection Diagram Rear Terminals Ventilations Ratchets Panel Mounting Clamp Panel Sealing Gasket Bezel P P I Hum iTherm c AL1 TUN AL2 1 2 RH C Hum iTherm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 5V OC2 OC1 OUTPUT 1 2 Pt100 INPUT 1 OUTPUT 3 RH SENSOR SERIAL COMMS SSR RELAY N O N C C P P I L N AC DC SUPPLY Ex INPUT 2 _ ELECTRONICASSEMBLY The electronic assembly can be re...

Страница 42: ...opside Insert the bezel gently with the boards on either side sliding into the guides provided inside of the Enclosure 3 Ensure that the bezel fits in tight on the Enclosure front to secure the panel sealing gasket The Figure 10 3 below shows the basic electronics assembly of the controller without plug in modules The basic electronics assembly comprises of 3 Printed Circuit Boards As shown in the...

Страница 43: ... module and the jumper arrangement Figure 10 4 As shown in above Figure there are 2 jumper arrangements markedAand B The selection between Relay and SSR requires both these jumpers A and B to be set appropriately as shown in Table 10 1 below The double headed arrows show the adjoining Pins that require shorting using the Link Table 10 1 Output Type Jumper Setting A Jumper Setting B SSR Voltage Pul...

Страница 44: ...l the module outward to unlock the socket from the plug Serial Communication Module The plug for the Serial Communication module is located on the Power supply board The Figure 10 6 below illustrates how to plug in the Serial Communication module To plug or unplug the module simply insert or remove the socket into or from the plug Figure 10 6 Mounting Serial Communication Module User Manual HumiTh...

Страница 45: ... the springs of the clamp push firmly against the rear face of the mounting panel for secured mounting The Figure 11 1 shows the controller front outer dimensions and the panel cutout requirements for a single controller and also the minimum spacing recommended if several controllers are required to be mounted on a single panel Figure 11 1 Panel Cutout 45 X 45 mm 0 0 5 mm 1 77 X 1 77 in 0 0 02 in ...

Страница 46: ... to high voltage surges of extended duration or short circuits on loads 5 Take care not to over tighten the terminal screws while making connections 6 Make sure that the controller supply is switched off while making removing any connections or removing the controller from its enclosure CONNECTION DIAGRAM The Electrical Connection Diagram is shown on the left side of the enclosure The diagram show...

Страница 47: ...e relay coil HUMIDIFICATION Terminals 5 6 Connect terminals 6 5 to SSR respectively OR to the relay coil Figure 12 3 6 5 4 5VDC Voltage for SSR Relay coils Open Collector OC2 for SSR 2 Relay 2 Humidification Open Collector OC1 for SSR 1 Relay 1 Heating OUTPUT 3 Terminals 7 8 and 9 The Output 3 module if fitted can be configured as either Relay or SSR Drive for Alarm or Compressor Control output Th...

Страница 48: ...nal 10 to GND Ground To ensure reliable operation of the Serial Communication Link without data corruption due to line noise or reflections use a pair of twisted wires inside screened cable with the terminating resistor 100 to 150 Ohms at one end as shown in Figure 12 6 below Relay Potential free Relay changeover contacts N O Normally Open C Common and N C Normally Close rated 2A 240 VAC resistive...

Страница 49: ... a n e t Process Precision Instruments 101 Diamond Industrial Estate Navghar Vasai Road E Dist Palghar 401 210 Maharashtra India 0250 2391722 33 37 42 07498799226 09321985369 support ppiindia net sales ppiindia net Mar 2017 ...

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