ST16135-00E
29
10 Fault Finding
10 Fault Finding
10.1 Fault Finding
WARNING !
The Controller sequential logic monitors and checks compressor
status through all stages of the operational cycle. At each stage,
the configuration and parameter limits set within the Controller
must be met for continued safe operation of the compressor.
If faults occur they appear on the Controller display with a specific
code, the last character, E, A or R, identifies the fault type.
10.2 Shutdown Error (E)
A shutdown error stops the compressor immediately or by normal
stopping sequence, preventing damage or a hazardous condition.
The error condition must be located and corrected, press reset to
cancel the error and the compressor can restart.
10.3 Alarm Error (A)
Alarms occur as a warning when normal operating conditions are
exceeded, but will not stop the compressor from being started and
run.
10.4 Run Inhibit Error (R)
A run inhibit will prevent motor start until the fault is located and
corrected. With normal operational status restored, press reset to
cancel the error.
10.5 Service Alarm Error (A)
A timer counts down from set values until a routine service is due
at 0 that sets off an alarm. A negative value count continues until
the timer is reset by maintenance personnel after the service
10.6 Fault Display Symbols
Various examples of symbols that appear on the controller display
with fault codes are shown below.
General fault
Emergency stop
Excess pressure
Power failure
Above set temperature limit
Lubrication, oil, oil level
Dewpoint
Motor
Service due, maintenance
Filter differential, filter service
Er 0010 E
Emergency stop
Er 0020 E
Fan motor overtemperature or circuit breaker
tripped
Er 0030 E
Motor overload tripped (if fitted)
Er 0080 E
Compressor motor overtemperature
Er 0115 E
Delivery pressure sensor fault
Er 0119 E
Delivery pressure high
Er 0125 E
Delivery temperature sensor fault
Er 0129 E
Delivery temperature high
Er 0135 E
Compressor pressure sensor fault
Er 0131 E
Compressor pressure below set minimum limit of
0.5 bar
Er 0139 E
Compressor pressure high
Er 0821 E
Short circuit on controller analogue or digital
supply
Er 0836 E
EMC or controller internal error
Er 0846 E
Delivery pressure sensor range set too low
Er 0856 E
Compressor pressure sensor range set too low
Er 0d01 E
RS485 communication not established
Er 0d02 E
RS485 communication lost
Er 0d03 E
Communication error reported by VSD
Er 0d06 E
VSD error (see P00 - DE)
Er 0d08 E
Safety interlock error (VSD physical start)
Er 2118 A
Delivery pressure high
Er 2128 A
Delivery temperature high
Er 2138 A
Compressor pressure high
Er 2816 A
Power failure when controller operational
Er 2d07 A
Drive alarm (see P00 - DE)
Er 2d09 A
Motor overload, compressor unloads until
current reduces
Er 3123 R
RSU delivery temperature (AT) below the set
temperature run inhibit level.
Er 3137 R
Run inhibited until internal pressure has
reduced.
Er 3d04 R
Drive type mismatch
Er 3d05 R
Motor type mismatch
Er 4804 A
Service due, reset countdown timer
