Toshiba P9 ASD - Viewing Trip Information; Trip Record at Monitor Screen; Trip History

P9 ASD Quick Start Guide 71
Alarms
Table 5 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 your TIC Sales Representative 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 5. 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 (F012) run-time is equal
to the 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 pressed twice at the EOI.
• EOFF command received remotely.
• ASD reset required.
MOFF Main Under-Voltage Under-voltage condition at the
3-phase AC input to the ASD.
• Low 3-phase commercial voltage.
• PO-to-PA jumper not secured or missing.
• Typeform error.
• Loss of externally-supplied control power.
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 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 operating at an elevated temperature.
• Disconnected/damaged cable while operating in the PG
Feedback Vector Control mode.
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