WX9 ASD Installation and Operation Manual
189
Alarms
An
Alarm
is an indication that a
Fault
is imminent if existing operating conditions continue unchanged.
lists the alarm codes that may be displayed during operation of the
WX9 ASD
. Each alarm code
listed is accompanied by a description and a possible cause. In the event that the source of the malfunction
cannot be determined, contact the TIC Customer Support Center for more information on the condition
and an appropriate course of action.
During an active
Alarm
, the display toggles to and from the running frequency and the active
Alarm
. In
the case of multiple
Alarms
, only the first to be detected will be displayed on the
Frequency Command
screen.
Note:
Some
User Notification
conditions and
Alarms
may be annunciated via a discrete
output terminal setting. See
for a listing of the possible system
conditions that may be associated with an output terminal.
Table 13. WX9 ASD Alarms.
LED Display
LCD Display
Description
Possible Causes/Troubleshooting
CM1
Comm1 Error
Internal communications
error.
• Improperly programmed ASD.
• Improper communications settings.
CM2
Comm2 Error
External communications
error.
• Improperly connected cables.
EF
Earth Fault
Active ground fault.
• Ground fault at the motor.
• Ground fault at the output of the ASD.
• Current leakage to
Earth Ground
.
EFU
DC Fuse Open
Incorrect current reading
at DC fuse circuit.
• Open circuit at DC bus circuit.
Err1
Point Setting Error
Incorrect setup at an
analog input (e.g., VI/II,
RR, etc.).
• Gain and bias settings for an analog input are either the same
or too close to each other (e.g.,
are equal).
LOD
PID Low Output
Disable
LOD function enabled and
the output frequency is
less than the
setting.
• Disable the
LOD
function at
or increase the
Low
Output Disable Start Level
at
MOFF
Main Under-
Voltage
Under-voltage condition at
the three-phase AC input
to the ASD.
• Low commercial input voltage.
Alarm
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