Instruction Manual

6–8 Troubleshooting
Publication 1397-5.0 — June, 2001
Alarm No. Alarm Name Description
050 “CML Fdbk Scaling” Armature current feedback could not be scaled properly based on the values entered for
Motor Arm Amps (P. 045) and Maximum Current (P.040). Verify that CT Turns Ratio
(P.036) has been set to the value shown in the user manual that corresponds to your
drive type.
051 “Low Min Speed” The Min Process Spd (P. 043) value is less than 10% of the Max Process Spd
(P. 042) value. This alarm will not be triggered on power–up. It only occurs when
maximum or minimum speed has changed. Verify that these parameter values are
correct for your application.
700 “NV Mem Save Fail” An attempt to save information (parameter values, fault log data etc.) to retentive memory
failed. The drive may continue to be operated.
A possible cause of this error is a Regulator Board Malfunction