VAR8 and Variants Operation, Commissioning, Fault Finding, and Maintenance Guide -
Is
Page 152 of 166
sue: 02 complete, approved
28.6.2 Frame and Amplifier Related Faults
Fault Description
Fault Code(s)
Reported and Logged
Suggested Action
Failure of AC Mains
Supply
FXX/* FRAME MAINS
XX=address of Frame
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.
Failure of Battery Supply FXX/ * FRAME BATT
XX=address of Frame
Check DC wiring, rear panel DC fuse and front panel
isolator switch on specified mainframe.
Failure of Frame
Auxiliary Output
FXX/ * FRAME AUX
XX=address of Frame
Check rear panel AUX fuse on mainframe.
Failure of CAN Comms
to a Frame
FXX/ * CAN COMMS
XX=address of Frame
Check CAN wiring to frame and status of front panel
isolator switches. i.e. is it turned off?
Over Temp Alarm FXX/ *FRAME TEMP
XX=address of Frame
Check the ambient temperature in the equipment room
and investigate amplifier loading and drive conditions.
Internal Fuse FXX/ * FAULT 01
XX=address of Frame
Check internal fuse F5 on motherboard.
CPU Reset FXX/ * CPU RESET
XX=address of Frame
A one of occurrence may be experienced due to EMI or
transients. Repeated occurrences indicate faulty
electronics.
CPU Memory Fault FXX/ * FAULT-09
XX=address of Frame
Mainframe electronics will need replacing.
Surveillance Interface
CPU Reset
FXX/Y SI CPU RESET
XX=Frame Address
Y=Frame Number
A one off occurrence may be experienced due to EMI or
transients. Repeated occurrences indicate faulty
electronics.
Surveillance Interface
CPU Memory
FXX/Y FAULT 09
XX=Frame Address
Y=Frame Number
Suspect Surveillance Interface electronics.
Cannot Communicate
with Surveillance
Interface
FXX/Y SI COMMS FAIL
XX=Frame Address
Y=Frame Number
Check whether the Surveillance Interface or its amplifier
module has been removed. If all seems ok then the
surveillance card electronics should be suspected.
Different Surveillance
Interface fitted from that
commissioned
FXX/Y AMP TYPE WRONG
XX=Frame Address
Y=Frame Number
Indicates that the Amplifier or Surveillance Interface
have been changed to different type from that learnt.
Amp Failure FXX/Y AMP FAIL
XX=Frame Address
Y=Frame Number
Indicates faulty Amplifier module.
Earth leakage Fault FXX/Y AMP LINE EARTH
XX=Frame Address
Y=Frame Number
Indicates an earth leakage path of <500 k
Ω exists
between either conductor of the speaker circuit and
ground.
Speaker wiring and loudspeakers need to be checked.
DC Line Fault
Open
FXX/Y AMP LINE OPEN
XX=Frame Address
Y=Frame Number
One or more spurs have been lost from the
commissioned setting.
Speaker wiring and loudspeakers need to be checked.
Using the tests/status menu it is possible to view the
number of spurs remaining to aid pin pointing the fault.
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