Rockwell Automation 1336 3-20HP FRN 1.01-3.01 - Manual (Page 95)

Fault Codes
Chapter 10
10-4
Open Potentiometer
Freq P R
An open potentiometer circuit has been detected. Check the external
potentiometer circuit at TB2, Terminals 1, 2 and 3 for an open circuit.
Serial Error
Freq P R
This Fault indicates a break in communications between the drive and the
1336-MOD-G2 Remote I/O Board. This fault is sensed only after the drive
is powered up and has sensed the presence of the Remote I/O Board by
establishing a communications link to the board.
Operator Error
Freq P R
Logic has detected incompatible parameters.
Verify the drive reset sequence after exiting the programming mode when
using a Programming and Display Panel.
Check Parameter 14. If set to 0, the stop input must be cycled once to
generate code F01, then again after power-on-reset is complete to reset the
drive.
Verify that Parameters 10 and 42 are compatible with Parameter 41.
Parameter 10, Stop Select, and Parameter 42, Slip Compensation, must be
compatible with Parameter 41, Motor Type, as detailed in the 1336
Programming Manual.
Overcurrent
Freq P R
The drive has exceeded 180% of its current rating. Check for a short circuit
at the drive output or excessive load conditions at the motor.