VAR4 / VAR12 / VAR20 - Operation Manual
Is
Page 291 of 308
0
Fault Code(s)
sue: 03 complete, approved
Table 2
Remote I/O Unit Faults
Fault
Description
Reported and Logged
Suggested Action
Remote I/O unit comms
fault
REMXX COMMS
XX=Remote I/O Unit Address
Check the Comms and power wiring to Remote I/O
Unit.
Check RS485 termination.
Check that address of Remote I/O unit is correct.
If all above ok, suspect the unit itself. Check the unit’s
internal CPU and COMMS LEDs.
Remote I/O unit reset
REMXX CPU RESET
XX=Remote I/O Unit Address
A one of occurrence may be experienced due to EMI
or transients. Repeated occurrences indicate faulty
electronics.
Over temp alarm
REMXX OVER TEMPERATURE
XX=Remote I/O Unit Address
Check the ambient temperature in the equipment
room and investigate Remote I/O unit loading and
drive conditions.
Remote I/O unit output
voltage below
predefined limit
REMXX 24V POWER OUT
XX=Remote I/O Unit Address
Check power supply.
Remote I/O unit
analogue channel fault
(open or short)
REMXX/AINYY ANALOGUE I/P
XX=Remote I/O Unit Address
YY=Analogue Input Channel
Check wiring of Volume Control, Programme
Selector, or ANS on specified analogue channel.
Remote I/O Unit digital
output fault
(load disconnected or
over current)
REMXX/DOUTYY DIGITAL O/P
XX=Remote I/O Unit Address
YY=Digital Output Channel
Check load connection on particular digital channel.
Table 2
External Faults (Configured on VAR Router Contacts or Remote I/O Analogue and Digital
inputs)
1
Fault
Description
Fault Code(s)
Reported and Logged
Suggested Action
VAR Router Contact
configured as fault input
VARNN/CINXX EXT FAULT
NN=01 to 10 (VAR ID)
XX=Contact number (01 to 62)
“EXT FAULT” text configurable
A digital input on the VAR Router, configured to
generate a fault, has been activated.
VAR-NIA power supply
failure (Networked
VAR12/VAR20)
VARNN/CINXX NIA PSU FAULT
NN=01 to 10 (VAR ID)
XX=Contact (01 to 62) used to
report VAR-NIA power supply
fault
“NIA PSU FAULT” is the
recommended text, however it is
configurable
Check both power supply cabling.
No immediate operational failure if only one PSU is
faulty.
Remote I/O unit digital
input configured as fault
input
REMXX/DINYY EXT FAULT
XX=Remote I/O Unit Address
YY=Digital Input Channel
“EXT FAULT” text configurable
A digital input on a Remote I/O unit, configured to
generate a fault, has been activated.
Remote I/O unit
analogue channel
configured as fault input
REMXX/AINYY EXT FAULT
XX=Remote I/O Unit Address
YY=Digital Output Channel
“EXT FAULT” text configurable
An analogue channel on a Remote I/O unit,
configured to generate a fault, has been activated.
Содержание VAR12
Страница 308: ......