74
P9 ASD Quick Start Guide
Trips/Faults
A
Trip
is an P9 ASD response to a
Fault
(though
Fault
and
Trip
are sometimes used interchangeably). A
Trip
is a safety feature that disables the ASD system in the event that a subsystem of the ASD is
malfunctioning or a parameter setting has been exceeded.
Listed in
are the
Faults
that may result in a
Trip
and the possible causes. When a
Trip
is incurred
the system displays the
Fault
screen. The
Fault
screen identifies the active
Fault
.
Table 6. P9 ASD Fault Listing.
LED Screen
LCD Screen
Possible Causes/Troubleshooting
AbFL
Low Suction/No Flow
Cut Off
• 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.
E
Emergency Off
• Emergency Off command received via EOI or remotely.
E-10
Sink/Source Setting
Error
• Improperly positioned
Sink/Source
jumper on the Terminal board or on an
option device (See J100 at the Terminal PCB of the ASD).
•
Sink/Source
configuration is incorrect.
E-11
Brake Sequence
Response Error
•
F630
is set to a non-zero value.
• Braking sequence discrete input and output terminals are not set up properly.
E-12
Encoder Signal-Loss
Error
• ASD is configured to receive a signal from a shaft-mounted encoder and no
signal is being received while running.
• Disconnection at the Encoder circuit.
• Motor is stopped and is generating torque via torque limit control.
• ASD is not configured properly.
E-13
Speed Error
• Result of a motor speed that is greater than the commanded speed when
using an encoder for speed control.
• Improper encoder connection or setup information.
• Defective encoder.
E-17
Key Failure
• Same key input for 20 seconds or more.
E-18
Analog (Terminal)
Input Loss
• V/I signal loss.
• Terminal Board failure.
• P24 over-current condition.
•
F633
setting is too high.
E-19
CPU Communication
Error
• CPU data Transmit/Receive error.
E-20
V/f Control Error
• Torque processing error.
• Make service call.
E-21
CPU Processing Error
• Software processed incorrectly.
• Make service call.
E-22
Logic Input Voltage
Error
• Incorrect voltage applied to the discrete input terminals.
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