User manual
Document no. : 032189
Version : V1.5
MC 785 CHILLER-2
Customer: Heinen & Hopman
Page: 11 of 16
6
Sensor calibration
With parameters P1, P2, P41, P42, P43 and P44 the temperature sensors can be calibrated.
If a temperature sensor readout is 0.2
/
C too high, for example, the offset of the appropriate
temperature sensor should be set 0.2
/
C lower.
The pressure sensors can be calibrated with parameters P12, P15, P18, P21, P24 and P27.
If a pressure sensor readout is 0.3 bar too low, for example, then the offset of the appropriate pressure
sensor must be set 0.3 bar higher.
In addition, every pressure sensor has a 4mA and a 20mA value setting for setting its range.
For example:
The settings for a pressure sensor with a range of 0.00 .... +10.00 bar and an
output of 4...20mA are as follows: The parameter for the value at 4mA must be set
at 0.00, and the parameter for the value at 20mA must be set at 10.00.
7
Alarms
An alarm can be caused by:
E1
Temperature sensor-1 inlet defect.
E2
Temperature sensor-2 outlet defect.
E3
Pressure sensor-1 (HP2) defect.
E4
Pressure sensor-2 (OIL2) defect.
E5
Pressure sensor-3 (LP2) defect.
E6
Pressure sensor-4 (HP1) defect.
E7
Pressure sensor-5 (OIL1) defect.
E8
Pressure sensor-6 (LP1) defect.
E10 No contact with LMS extra sensors
E11 Temperature LMS sensor 1 too low
E12 Temperature LMS sensor 2 too low
E15 Temperature LMS sensor-1 defect
E16 Temperature LMS sensor-2 defect
E20 Too low pressure pressure sensor-6
compressor-1
E 21 Too low pressure pressure sensor-3
compressor-2
E22 Too high pressure pressure sensor-4
compressor-1
E23 Too high pressure pressure sensor-1
compressor-2
E24 Too low pressure pressure sensor-5 oil
pressure-1
E25 Too low pressure pressure sensor-2 oil
pressure-2
E26 Too low pressure pressure sensor-4
compressor-1
E27 Too low pressure pressure sensor-1
compressor-2
E30 Inlet temperature lower than outlet temperature
E31 Temperature sensor-1 inlet too low
E32 Temperature sensor-2 outlet too low
E33 Temperature sensor-1 inlet too high
E34 Temperature sensor-2 outlet too high
E40 Cabinet cooling failure
E41 Error waterflowswitch 1
E42 Chiller pump-1 failure
E43 Chiller pump-2 failure
E44 Compressor-1 failure
E45 Compressor-2 failure
E46 Maximum thermostat
E47 INT69-1 failure
E48 INT69-2 failure
E49 Sea pump-1 failure
E50 Sea pump-2 failure
E51 Error waterflowswitch 2
E52 Interlock cooling water fault
E60 Communication error LMS dig-in module-1
E61 Communication error LMS dig-in module-2
E62 Communication error LMS dig-in module-3
E63 Communication error LMS relay module-1
E64 Communication error LMS relay module-2
E65 Communication error LMS relay module-3
The alarm warnings can be seen in the temperature display (top left).
By pressing the
RESET ALARM
key the alarm relay can be reset.
The error code continues to appear in the display as long as the fault remains.
The alarm LED will also continue to blink.
