ECODRIVE DKC01.1/DKC11.1 Drive Controllers
2-8 Description of Diagnostic Letters F... and E... DOK-ECODRV-ASE-02VRS**-WAR1-EN-P • 07.96
12 - 18 V
Figure 2-1: Methodically measured signal amplitude over AK: X31/1-2
F860 Overcurrent: Short in Powerstage
Description:
The current in the power transistor bridge has exceeded twice the peak
current of the drive. As a result, the drive will be immediately turned off.
The drive has switched to a torque-free condition. An optional brake is
immediately activated.
Cause:
1. Short circuit in the motor cable.
2. Defective power section of the drive controller.
3. The current regulator was incorrectly parameterized.
Remedy:
For 1. Check the motor cable for a short.
For 2. Exchange drive controller.
For 3. The current regulator parameters should not deviate from the
default values of the feedback.
F870 +24 V Error
Description:
The DKC requires a 24V control voltage. If the maximum allowable
tolerance of + or - 20% is exceeded, then the drive is immediately
switched to torque free operation. An optional brake is activated.
Cause:
Disturbance or overload of the 24 V supply voltage. Measure control
voltages.
Remedy:
Check wiring and/or replace power supply module.
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