Table 9-1 Fault and Warning Messages
Error Message Cause Action
REV The card has detected an abnormal
input at the T/C termination that
indicates a shorted or reversed
thermocouple.
If the REV alarm persists then you
should switch o the controller and
investigate the oending zone.
Alternatively you could slave the
oending zone to a good zone until
you have time to clear the fault.
T/C An open circuit thermocouple has
been detected.
For immediate recovery you can
either slave that control zone to an
adjacent zone or change to open
loop control.
Later, check to see whether the input
fuse on the control card has ruptured
or, if the fuse is good, replace the
thermocouple.
TRC Triac fault. This can only occur
when in manual mode and
automatic mode, where the current
is pre-set manually.
If for instance, the triac output
current is higher than the set point,
the controller attempts to reduce
output to the level required. If it fails
the triac may have failed and it is
agged as faulty.
Check the current output on the
channel.
If the triac has failed, return to Mold-
Masters for repair.
Table 9-2 Integrated HRC Warning Messages
Warning Message Abnormal Condition
MAN The control zone is in manual mode.
S # The zone is slaved to another control zone, where # represents the number
of that zone, i.e. S 2 means the zone is slaved to Zone 2.
The same power is being sent to both zones.
In the Display page, the set point displayed on the selected zone is the
same as that on the slave zone.
TEST Displayed when the zone is in diagnostic test mode.
WARN If during the test procedure a temperature interaction is found between
zones, this message is displayed.
FAIL The zone under test has failed.
OK The zone has passed testing.
Fault and Warning Messages - continued
9-4TROUBLESHOOTING
E-Multi Controller User Manual
© 2020 Mold-Masters (2007) Limited. All Rights Reserved.
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