Rockwell Automation 161 SERIES B FRN 2.001 - Manual (Page 39)

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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.
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
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.
Fault
Number Fault Name Fault Description Corrective Action
Overcurrent
While running An overcurrent has been detected in
the hardware trip circuit while the
drive was running. Check for a short circuit at the drive output or for
excessive load conditions at the motor.
Overcurrent
During
Deceleration An overcurrent has been detected in
the hardware trip circuit while the
drive was decelerating. Check for a short circuit at the drive output or for
excessive load conditions at the motor.
Overcurrent
During
Acceleration An overcurrent has been detected in
the hardware trip circuit while the
drive was accelerating. 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.
Overcurrent at a
Standstill An overcurrent has been detected in
the hardware trip circuit while the
drive was at a standstill. Check the output lines or the motor for a ground
fault.
Internal Motor
Protection The internal electronic motor
protection has been triggered due to
overloading of the connected motor. Check the entry under Pb12 - [Motor Overload
Current]. Reduce PA42 - [Manual Boost
Voltage]. Check the motor and drive rating.
Overvoltage The maximum DC Bus Voltage has
been exceeded due to regenerative
energy from motor. Motor regeneration has caused a bus
overvoltage. Extend the decel time.
EEPROM Error The EEPROM has invalid data. Reset EEPROM by resetting the defaults using
Pb84 - [Reset Functions].
Undervoltage The DC Bus voltage fell below the
minimum rated voltage. Monitor the incoming AC line for low voltage or
line power interruptions.
Processor Error
There is a malfunction or abnormality
of the CPU
Check external wiring for a possible cause. If
problems persist have drive serviced by
authorized Rockwell-Automation service
personnel.
Processor Error
External Fault External fault 12 {EXT} indication has
been received at one of the digital
inputs (C01-C05). Remove the cause of the fault in the external
wiring and clear the fault.
Unintentional
Start Protection An input (C01-C05) was set to 13
{USP} and power was restored while
a run input was active. Check incoming line voltage for low voltage or
line power interruptions. Remove the run
command before power-up.
* 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.
E 01
E 02
E 03
E 04
E 05
E 07
E 08
E 09
E 11
E 22
E 12
E 13