ECODRIVE DKC01.1/DKC11.1 Drive Controllers
DOK-ECODRV-ASE-02VRS**-WAR1-EN-P • 07.96 Description of Diagnostic Letters F... and E... 2-9
F873 Power Supply Driver Stage Fault
Description:
The voltage supply of the driver stage is monitored and if the voltage is
too low then the drive is turned off.
Cause:
Voltage supply of the driver stage is too low
Remedy:
Exchange drive controller
F878 Velocity Loop Error
Description:
The velocity loop monitor will appear when the following conditions occur
simultaneously:
• The current command value is at the peak current limit
• The difference between the actual velocity and the command velocity
is larger than 10% of the maximum motor velocity.
• The velocity control deviation does not become smaller over a time
frame of 20ms.
Cause:
1. Motor cable is connected incorrectly.
2. Defective controller section of the drive.
3. Defective feedback.
4. Velocity loop paramaterized incorrectly.
Remedy:
For 1. Check motor cable connection.
For 2. Exchange drive controller.
For 3. Exchange motor
For 4. Check velocity controller to see if it is within operational
parameters.
To Next Page
Loading...
Need help?
General