Firmware V1.41 V1
08.11.2022
213/219
12.2.1 Automatic Priorisation
For example, in the event of a compressor fault, an alarm automatically becomes priority 1 when 50% of the
compressors have failed.
If an alarm priority has been selected for a maintenance group other than refrigeration technology (Prio. 0..9 –
in the decade 2x with e.g. alarm priority 20), then automatic prioritisation causes the priority to be automatically
raised to 21, which only then results in the generation of an alarm signal. Here the message priority remains in
the pre-selected decade (maintenance group). Further information is provided in the system centre / store
computer operating manual.
12.3 Overview of all alarms and messages
EPROM and RAM errors are fatal errors and cause the controller to go into the HALT state as correct program
execution can no longer be expected. Output signals are reset.
In the event of any
fault in the high pressure measuring circuit
, condenser stages are switched off for stopped
compressors and switched on for running compressors. If compressors have been switched on manually,
capacity stages are also loaded. A switching process is performed after expiry of the basic time. The variable
times are not taken into account.
In the event of any
fault in the low pressure measuring circuit
, compressor capacity stages are loaded or
unloaded until approx. 50% of all available compressor capacity stages are in operation. A switching process is
performed after expiry of the basic time. The variable times are not taken into account. In the event of
occurrence of all other
measuring circuit errors
, operation continues with the last valid value for the duration of
the fault.
No.
Message text
Process fault alarm
0
MP too low
Medium pressure too low
Error.OD.HP-V
Fault in the high pressure valve opening degree
HP too low
High pressure too low
tG too low
Gas cooler temperature too low
tG too high
Gas cooler temperature too high
Max.Refrig.level+
Maximum refrigerant fill level exceeded
Error.HR.Sig.
HRC signal is cycling
Comm. Error Ext. AO
Modbus error during the communication with module MR-AO4
Fault MR-DO4 x
Modbus error during the communication with modules MR-DO4 / MR-DOA4
2
RAM error
The internal data memory has a fault
4
EEPROM error
The internal EEPROM (parameters memory) has a fault
8
RTC error
Error in the real-time clock of the controller
9
int. SIOX error
Internal SIOX extension module has failed
ext. SIOX x error x
External SIOX extension module No. x has failed
Hardware incompatib.
Hardware not compatible with the firmware for VS 3015 CT
10
Battery voltage
Internal battery fault
16
Watchdog
Internal watchdog of the pack controller deactivated (DIP switch S1 coding switch 6 = OFF,
see chapter
50
First start
First start of the controller with loading of default parameters
51
Power failure
Restart of the controller after a power failure