83003702.K Operating Instruction
Type KPC 108-L-U/S
page 71
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Six-stage temperature controller ST710-PWHVM.26
Information
If the display is changed from temperature to pressure (A15) the input has to be changed too. (A35)
Otherwise the display will show "FP" after leaving the parameter level.
The other case measuring input pressure and display temperature is possible. The pressure values of the defined range
(A38 and A39) are converted to temperature values according the refrigerant set in parameter A37.
Depending on input (A35), display (A15), and refrigerant, some parameters will be initialised with different values.
Technical data
Input:
E1
External potential-free switching contact
Measuring inputs:
F1
F2
Resistance thermometer Pt100, 3 wire,
Measuring range -200...850 °C,
Measuring ac05K/-0,5 % of scale range, without sensor
Linear current input 4...20 mA
Outputs:
K1 – K5
K6, K7
relays, normally open contact, 6 A /250V
relays, normally open contact, 8 A /250V
Notice:
The standing current at connecting point 9 is the summary of K1 – K6 and might not be higher than 8A !!
Indication:
One 4-digit LED-display, color red.
Three LED's, diameter 3 mm, for status display.
Supply:
12-24 V AC (50/60 Hz) or 16-36 V DC
Serial bus:
2-wire, twisted Pair, maximal length 100 m.
Ambient conditions:
Operating temperature:
0 ...+55°C
Relative humidity:
max. 75 % without dew
Error messages
reason
action
F1L
Sensor error, short circuit
Check sensor
F1H
Sensor error, open circuit
Check sensor
Fb
Exceeding operating range
-is interpreted as error if measuring value (P35) and
indicated value (P15) are different
Stick to operating range
Flashing display
Temperature alarm
EP
Error in EEPROM - Data loss at parameter memory
(Contacts K1 and K2 are switched off)
Disconnect the controller from supply
voltage for min 5 minutes. If the EEPROM
has no damage the controller will reinitialize.
(Attention: all settings will go to the default
values !!) If the EEPROM is damaged the
error massage will come again and the
controller has to be changed.
Wiring Diagram
Temperature sensor
element PT100
