Delta VFD220C43A-21 User Manual

Chapter 14 Fault Codes and DescriptionsC2000 Plus
14-115
ID
Display on LCD Keypad
Fault Name
Fault Descriptions
189
Inertia estimation error
(JsAT)
Inertia estimation is abnormal when using Explorer for
ASR Auto Tune.
Action and Reset
Action condition
Estimated inertia variation cannot converge to 2% and below
Action time
60 seconds
Fault treatment parameter
N/A
Reset method
Manual reset
Reset condition
Reset immediately
Record
Yes
Cause
Corrective Actions
Inertia estimation cannot converge
1. Verify if the load is stable. It cannot estimate the inertia correctly if the load
vibrates.
2. Increase torque command and speed command to stabilize the estimation.

Delta VFD220C43A-21 Specifications

General

Brand	Delta
Model	VFD220C43A-21
Category	DC Drives
Language	English