Up/down sync switch simultaneously active

KONE Elevator High Elevator

Model: LCE/V3F | Code: 0052

Applicable Systems
Kone Elevator

Symptoms

77U and 77N (up/down sync switches) both active simultaneously

Possible Causes

  • Both sync switches activated
  • switch fault
  • wiring short between switches
  • switch misalignment

Troubleshooting Steps

  1. Step 1: Check 77U and 77N switches
    Verify the fault is resolved after completing this step.
  2. Step 2: verify switch wiring
    Verify the fault is resolved after completing this step.
  3. Step 3: inspect for short circuit
    Verify the fault is resolved after completing this step.
  4. Step 4: adjust switch positions
    Verify the fault is resolved after completing this step.

How to Reset

Auto recovery at terminal; power cycle

Related KONE Fault Codes

Source: baijiahao (KONE codes); doc88.com; docin.com

Category: Elevator