Indramat Error Code F860

Indramat Error Code F860 is a critical error code for Indramat drives, indicating Overcurrent: Short in Power Stage. This means the transistor current in the power stage has more than doubled the device’s peak current rating, triggering a shutdown to prevent further damage.

Causes

Several factors can trigger this error:

  • Short circuit in the motor cable: Damaged or faulty motor cables can create a direct connection between power lines, causing excessive current flow.
  • Defective power section: Internal issues within the drive’s power stage, like faulty transistors or capacitors, can lead to current overloads.
  • Incorrect current loop parameters: Inappropriate settings for the current control system in the drive can result in overcurrent situations.

Detach the cable from the power unit and disconnect the motor. Does the fault clear? If neither the motor nor the cable is at fault, you could have a defective drive control system.

Consequences

Since this is a fatal error, you can expect your machinery to quit working.

  • Drive shutdown: The drive immediately shuts down to protect itself from further damage.
  • Torque loss: The motor loses torque and stops rotating.
  • Potential damage: Depending on the severity and duration of the overcurrent condition, components like transistors or the motor itself could be damaged.

The shutdown is intended to help avoid damage.

Troubleshooting

Here are the key steps:

  • Safety first: Before attempting any troubleshooting, ensure the power is off and the drive is safely disconnected.
  • Visual inspection: Check for visible signs of damage in the motor cable or within the drive itself.
  • Motor cable testing: Use a multimeter to test for continuity and shorts in the motor cable.
  • Consult user manual: Refer to the specific drive’s user manual for troubleshooting steps and diagnostic procedures.
  • Contact support: If unable to resolve the issue, seek professional assistance from a qualified technician. ┬áCall (479) 422-0390 for immediate assistance.

Do not attempt repairs yourself. Unless you have the necessary expertise and tools, attempting repairs yourself can further damage the drive and void warranties. You can also put yourself and your workers in danger. Indramat components are not designed to be repaired in the field. Factory repair or reman is always your best option. Again, call (479) 422-0390 for immediate assistance.

As you’re getting ready to make that call, note the specific error code, any error messages displayed, and the circumstances under which the error occurred. This information is crucial for diagnosis and troubleshooting. With the necessary information, we can get you back up and running fast.