External error
Lenze · SHB4800/4900
What does EEr mean?
This fault is triggered by an external safety circuit or monitoring device connected to the drive, indicating a condition outside the drive itself requires attention. By default, this critical condition triggers a full TRIP, inhibiting all ignition pulses and resetting the Ready signal, as it typically signifies an important external protective function has been activated. Manual reset is required.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Reset external devices: Ensure any tripped external protective devices are reset.
- 4
Bypass for testing (if safe and authorized): Temporarily bypass the external fault input (only for troubleshooting, with caution) to determine if the drive operates without the external circuit.
- 5
Review external fault configuration: Confirm the drive's parameter for external fault input (e.g., normally open/closed) is correct.