ASL INTERCOM VAR4 Operation Manual page 288

Fault Description
DSP DMA fault
Table 17 Mainframe and Amplifier Faults
Fault Description
External CAN bus fault
Failure of AC mains
supply
Failure of battery supply
Failure of mainframe
auxiliary output
Failure of CAN comms
to a single amplifier in a
mainframe
Over temp alarm
Internal fuse
CPU reset
CPU memory fault
Surveillance interface
CPU reset
Surveillance interface
CPU memory
Cannot communicate
with surveillance
interface
Different surveillance
interface fitted from that
commissioned
VAR4 / VAR12 / VAR20 - Operation Manual
Fault Code(s)
Reported and Logged
VARNN/X FAULT-14
NN=01 to 30 (VAR ID)
X=1=Base unit board
2=Expansion board 1 (VAR12)
3=Expansion board 2 (VAR20)
Fault Code(s)
Reported and Logged
FXX CAN COMMS
XX=Mainframe Address
FXX MAINS POWER
XX=Mainframe Address
FXX BATTERY POWER
XX=Mainframe Address
FXX AUX POWER OUT
XX=Mainframe Address
FXX/Y CAN COMMS
XX=Mainframe Address
Y=Slot Number
FXX OVER TEMPERATURE
XX=Mainframe Address
FXX FAULT-01
XX=Mainframe Address
FXX CPU RESET
XX=Mainframe Address
FXX FAULT-09
XX=Mainframe Address
FXX/Y IF CPU RESET
XX=Mainframe Address
Y=Slot Number
FXX/Y IF FAULT-09
XX=Mainframe Address
Y=Slot Number
FXX/Y IF COMMS
XX=Mainframe Address
Y=Slot Number
FXX/Y AMP/IF TYPE
XX=Mainframe Address
Y=Slot Number
Is sue: 03 complete, approved
VAR Router will need replacing.
Check CAN wiring between Router and mainframes.
Check mains wiring, mains fuse in IEC inlet and front
panel isolator switch on specified mainframe. If all
seems ok, there may be an internal fault with the
unit's power supply
Check DC wiring, rear panel DC fuse and front panel
isolator switch on specified mainframe.
Check rear panel AUX fuse on mainframe.
Check CAN wiring to mainframe and status of front
panel isolator switches. i.e is it turned off?
Check the ambient temperature in the equipment
room and investigate amplifier loading and drive
conditions.
Check internal fuse F5.
A one of occurrence may be experienced due to EMI
or transients. Repeated occurrences indicate faulty
electronics.
Mainframe electronics will need replacing.
A one of occurrence may be experienced due to EMI
or transients. Repeated occurrences indicate faulty
electronics.
Suspect Surveillance Interface electronics.
Surveillance Interface electronics will need replacing.
Check whether the Surveillance Interface or its
amplifier module has been removed. If all seems ok
then the surveillance card electronics should be
suspected.
Indicates that the Amplifier or Surveillance Interface
have been changed to different type from that learnt.
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