1100-2295 Rev 1
39
MGS-408 User Manual
6.2. FAULT CODES
Code Critical Fault
Possible Causes
Remedy
0001
CHASSIS
TEMP HI
Chassis temperature outside
the range of -20 to 60
°
C
Reduce ambient temperature or check
for power supply malfunction.
0002
RS485 MSTR
BUFR
Buffer overflow
communicating with detectors
Disable all but one channel, use MODBUS
MASTER traffic screen to one CH at a time.
0004
RS485
SLAVE BUFR
Buffer overflow
communicating with BMS
Use MODBUS SLAVE traffic screen to
diagnose.
0008
RS485 MSTR
CRC
CRC error communicating
with detectors
Disable all but one channel, use
MODBUS MASTER traffic screen to one
CH at a time.
0010
RS485
SLAVE CRC
CRC error communicating
with BMS
Use MODBUS SLAVE traffic screen to
diagnose.
0020
BT SLAVE
CRC
CRC error communicating
with Bluetooth APP
Use BLUETOOTH traffic screen to
diagnose.
0040
RS485 SL
TMOUT
Modbus timeout
communicating with BMS
Use MODBUS SLAVE traffic screen to
diagnose.
0080
BLE EEPROM
Error configuring Bluetooth
transceiver
Reset, or Reboot controller, if fault
persists, consult factory.
0100
BT SLAVE
BUF
Buffer overflow
communicating with
Bluetooth APP
Use MODBUS SLAVE traffic screen to
diagnose.
0200
STUCK KEY
ERROR
On or more keys on the
keypad are stuck down
Use KEYPAD TEST to determine stuck
key, consult factory.
0400
CONFIG
ERROR
All detectors are disabled
or there are duplicate node
addresses
Enable one or more channels, or
check for duplicate node address
assignment.
0800
SD CARD
ERROR
SD card interface is
reporting an error
(see
section X.X.X)
Select SD FAULT from DATA LOGGING
menu for details.
1000
SENSOR
RESPONSE
One or more detectors are
not responding to queries
Disable all but one channel, use
MODBUS MASTER traffic screen to test
one CH at a time.
2000
SUPPLY
VOLTS ERR
One or more power supply
voltages are out of range
Check POWER screen in diagnostic menu,
if SUPPLY OUT is <23.7V check for short
or overload on detector supply feed. If
battery voltage is less than 1.8V replace
coin cell. Otherwise consult factory.
