Lenze i500 Error Code Eer

Lenze PLC & VFD Major External Fault

Model: i500 | Code: Eer

Applicable Systems
i500

Symptoms

External monitoring trip: external fault triggered (code 091).

Possible Causes

  • External fault signal active
  • External monitoring device triggered
  • Wiring fault

Troubleshooting Steps

  1. Step 1: Check external fault source
    Fault condition cleared
  2. Step 2: Inspect external wiring
    Wiring intact
  3. Step 3: Clear external fault signal
    Signal inactive

How to Reset

Reset via control panel after external fault is cleared.

Related Lenze Fault Codes

Source: Lenze i500 Frequency Inverter Manual, Lenze SE

Category: PLC & VFD