ENMET MX-42A - Manual (Page 18)

ENMET Corporation MX42A C ONTROL
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6.0 Troubleshooting 6.0 Troubleshooting 6.0 Troubleshooting 6.0 Troubleshooting
Fault message Possible Cause Corrective action
Display off or no LED lighted fuse blown
power switch set to OFF
check power supply voltages and change the
fuses if necessary
set the power switch to ON
STOP displayed channel out of service put the channel microswitch 8 to ON
INIT displayed bad detector electrical connections
defective detector
the type of detector does not
correspond to the configuration of
the channel
channel very badly adjusted
check the connections
change the detector
change the type of detector
Caution: The channel could have been damaged
adjust the channel
Fault signal lamp lighted and
DEF displayed
Fault signal lamp blinking
channel in maintenance mode for
more than 30 minutes
channel in maintenance position
reset the channel microswitch 7 to NORMAL
reset the channel microswitch 7 to NORMAL
External alarm controlled in
opposite direction, in relation
to the tripping of the alarm bad choice of relay contact move the jumper to use the correct contact