83

Slack wire

Kone · CMXC-022 Frequency Control Upgrade Kit

What does 83 mean?

The slack wire function has been activated, indicating that the hoisting wire or chain has lost tension. This is a safety mechanism implemented by the R&M Materials Handling Frequency Converter to prevent damage to the wire, drum, or load.

Common Causes

  • Slack wire function is active

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the entire hoisting mechanism (hoisting wire/chain, drum, pulleys, load path) for actual slack, obstructions, or the load resting on a surface causing loss of tension.

  2. 2

    Verify the physical condition, alignment, and proper mechanical actuation of the slack wire limit switch or sensor.

  3. 3

    Check all wiring connections from the slack wire sensor to the Kone CMXC-022 Frequency Converter for looseness, damage, or disconnections.

  4. 4

    Verify the digital input status for the slack wire function in the frequency converter's diagnostic menu and confirm relevant parameters are correctly configured.

Browse all codes in this manual (40)
Verified technical data. Last updated: March 2026

Related Faults

Source: Kone CMXC-022 Frequency Control Upgrade Kit