Table of Contents
Chapter 4 – Faults & Troubleshooting
Fault Information
This chapter provides information to guide you in troubleshooting the drive. Included is a list and description of
drive faults and problems that may occur.
How to Clear a Fault
When a fault occurs, the cause must be corrected before the fault can be cleared. After corrective action has
been taken, any of the following actions will clear the fault.
•
Press the stop button on the Keypad.
•
"Reset" the drive via a digital input that is programmed to setting 18 {RS}.
•
Cycle power to the drive.
ATTENTION
• A hazard of personal injury or equipment damage exists. If a fault is cleared while there is a valid
run command, the drive will run as soon as the fault is cleared without cycling the input.
Note: If any digital input (C01-C05) is set to 31 {OPE} then the setting of parameter A02 is ignored as the digital input
overrides this setting. If the input is programmed, but not active, the start command will come from the control termi-
nals. If the input is programmed and active, the start command will come from the start key on the keypad.
Bulletin 161 Fault Descriptions
Fault
Fault Name
Number
Overcurrent
E 01
While running
Overcurrent
E 02
During
Deceleration
Overcurrent
E 03
During
Acceleration
Overcurrent at a
E 04
Standstill
Internal Motor
E 05
Protection
Overvoltage
E 07
EEPROM Error
E 08
Undervoltage
E 09
Processor Error
E 11
Processor Error
E 22
External Fault
E 12
Unintentional
E 13
Start Protection
* For a description of the reset function see digital input description table in Chapter 2, and parameters PC01 [Digital Input 1] -
PC05 [Digital Input 5] in Chapter 3.
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Fault Description
An overcurrent has been detected in
the hardware trip circuit while the
drive was running.
An overcurrent has been detected in
the hardware trip circuit while the
drive was decelerating.
An overcurrent has been detected in
the hardware trip circuit while the
drive was accelerating.
An overcurrent has been detected in
the hardware trip circuit while the
drive was at a standstill.
The internal electronic motor
protection has been triggered due to
overloading of the connected motor.
The maximum DC Bus Voltage has
been exceeded due to regenerative
energy from motor.
The EEPROM has invalid data.
The DC Bus voltage fell below the
minimum rated voltage.
There is a malfunction or abnormality
of the CPU
External fault 12 {EXT} indication has
been received at one of the digital
inputs (C01-C05).
An input (C01-C05) was set to 13
{USP} and power was restored while
a run input was active.
Corrective Action
Check for a short circuit at the drive output or for
excessive load conditions at the motor.
Check for a short circuit at the drive output or for
excessive load conditions at the motor.
Check for a short circuit at the drive output,
excessive load conditions at the motor, an
acceleration time that is too short, or for a
manual boost setting that is improperly set.
Check the output lines or the motor for a ground
fault.
Check the entry under Pb12 - [Motor Overload
Current]. Reduce PA42 - [Manual Boost
Voltage]. Check the motor and drive rating.
Motor regeneration has caused a bus
overvoltage. Extend the decel time.
Reset EEPROM by resetting the defaults using
Pb84 - [Reset Functions].
Monitor the incoming AC line for low voltage or
line power interruptions.
Check external wiring for a possible cause. If
problems persist have drive serviced by
authorized Rockwell-Automation service
personnel.
Remove the cause of the fault in the external
wiring and clear the fault.
Check incoming line voltage for low voltage or
line power interruptions. Remove the run
command before power-up.
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