Keypad communication

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The communication link between the control keypad (or NCDrive software) and the AC drive has been interrupted or broken. This prevents control and monitoring via the keypad interface.

• Loose or disconnected ribbon cable connection between the keypad module and the drive's control board.
• Physical damage or corrosion to the keypad connector pins or the corresponding port on the drive.
• Faulty keypad module that has failed internally and cannot establish communication.
• Electromagnetic interference (EMI) disrupting the communication signals between the keypad and the drive.
• Firmware incompatibility or corruption affecting either the keypad or the drive's control board.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Power down the drive and firmly reseat the keypad's ribbon cable connection to the drive's control board.

2. 2

   Attempt to operate the drive with a known-good replacement keypad module to isolate the fault.

3. 3

   Inspect the keypad connector and the drive's interface port for bent pins, debris, or other physical damage.

4. 4

   Cycle power to the drive and observe if communication is re-established upon startup.

5. 5

   Verify that no strong EMI sources are located in close proximity to the drive or keypad cable.