Rockwell Automation 1329I Integrated AC Drive/Motor, Series A - Manual (Page 53)

Diagnostics and Troubleshooting 11-3
1329I-5.0 Integrated Drive/Motor — January, 1999
Low Bus Voltage Low input line
Temporary loss of input line. Check input line to verify
voltage is within operating
specifications.
Overcurrent
(Current exceeded 200% of
rated current.) Shaft rotation blocked.
Excessive driven load.
Input power is not correctly
wired to the unit.
Motor Section ground fault.
Check for obstructions to shaft
rotation.
Reduce excessive load.
Increase accel / decel time
using the accel/decel rotary
switch (see Section 8.2).
Verify input wiring is correctly
connected (see Section 5.0).
Ohm out Motor Section to
check for ground fault. Replace
unit if a ground fault is detected
.
Unit Overtemperature Operating environment is too
hot.
Blower is blocked or not
operating.
Excessive driven load.
Check the application site and
verify the ambient
temperature is within the
operating specification.
Check for blower obstruction.
Replace blower if required.
Reduce load or make sure
unit matches the application
requirement.
Electronic Thermal Overload
The electronic thermal
overload will trip when the
current to the motor has
exceeded either 110%
(variable torque V/Hz curve
selected) or 150% (constant
torque V/Hz curve selected) of
the motor rated current for 60
seconds. Excessive current to the motor
for an extended time due to
excessive load or short circuit. Check for obstructions to shaft
rotation.
Reduce the driven load.
Verify input wiring is correctly
connected (see Section 5.0).
Check for blower obstruction.
Replace blower if required.
=NNN Internal Fault
(NNN = a number from 0 to
999)
The display flashes the fault
code on and off at 1/2 second
intervals to indicate an
internal fault. Control board failure. Replace Control board.
Internal faults cannot be reset.
Code Fault Description Fault Cause Corrective Action