motor power through slip ring
I need a motor to work on rotating platform and this motor is controlled by S346 - 400V. Motor and S346 are on different sides of slip ring (see attach).
So i cut power cable (DE-107473) near motor end and made like this:
- 4 wires from slip ring fixed side (of 200mm length) come to X9 connector
- 4 wires of slip ring moving side (of 200mm length) connect by screw terminals with 4 wires of power cable I cut
- connector comes to motor
Feedback cable is standard; S346 is controlled by CANopen from PC.
When I start program, it works OK for only one second, I see motor position changed a little. Then comes Error F023 (CAN bus fault) and motor stops. Also S346 stops responding by CAN
How do I solve this problem? With another power cable (uncut DE-107473) motor rotates fine and stable until I stop it.
Thanks for help
Comments & Answers
jcoleman02 said ...
The F23 fault is related to the CANopen communication. It is not related to the motor power cable, except that an unshielded motor power cable will output a lot of EMI. The EMI can cause communication problems. If the CANopen communication works fine on the same system when not using the slip ring, then I would guess that the problem is due to the slip ring not providing shielding.
iakovlev said ...
problem was in handmade CAN-cable. Made it shorter and better quality and all works