258 P9 ASD Installation and Operation Manual
Alarms
Table 14 lists the alarm codes that may be displayed during operation of the P9 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 further information on the condition
and for an appropriate course of action.
The Alarms are listed in the top-down order that they are checked for activation. Only the first to be
detected will be displayed on the Frequency Command screen.
Table 14. P9 ASD Alarms.
LED
Screen
LCD
Screen
Description Possible Causes/Troubleshooting
AbFL Low Suction/No Flow
Cut Off
Running ASD producing no
flow.
• Loss of suction pressure or closed pump output valve.
• Activated discrete input terminal set to Low Suction/No
Flow Protection.
•ASD Upper-Limit Frequency run-time is equal to F484
time setting.
CM1 Comm1 Error Internal communications error. • Improperly programmed ASD.
• Improper communications settings.
• Improperly connected cables.
CM2 Comm2 Error
External communications error.
E Emergency Off Output signal from the ASD is
terminated and a brake may be
applied if so configured.
• Stop|Reset was pressed twice at the EOI.
• EOFF command was received remotely.
• ASD reset is required.
MOFF Main Under-Voltage Under-voltage condition at the
3-phase AC input to the ASD.
• Low 3-phase commercial voltage.
OC Over-Current ASD output current greater than
F601 setting.
• Defective IGBT (U, V, or W).
• ASD output to the motor is connected incorrectly.
• ASD output phase-to-phase short.
• The ASD is starting into a spinning motor.
• Motor/machine is jammed.
• Mechanical brake engaged while the ASD is starting or
while running.
• Accel/Decel time is too short.
• Voltage Boost setting is too high.
• Load fluctuations.
• ASD is operating at an elevated temperature.
OJ Timer Run-time counter exceeded. • Type Reset is required; select Clear run timer.
* Reset ignored if active.
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