Simodrive 611 Error 607 -

| Condition | Action | |-----------|--------| | 48V supply external – replace supply | Repair not needed – just PSU | | Power module works after jumper test | External wiring or PLC issue | | Error follows module after swap | Repair or replace module | | Burn marks, blown IGBTs | Replace module (repair costly) | | Intermittent error on one axis only | Replace drive – intermittent internal fault |

Many third-party shops (e.g., Artus, Radwell, Global Electronic Services) offer flat-rate repair for SIMODRIVE 611 modules ($500–$1500). Siemens also offers exchange service but typically more expensive.

Before touching any hardware:

Assumption: Technician has basic electrical test tools (multimeter, oscilloscope), wiring diagrams, and access to SIMODRIVE manuals.

  • Attempt soft reset:

  • Check encoder wiring and connectors:

  • Measure encoder supply voltage:

  • Verify feedback signals with oscilloscope:

  • Check grounding and shielding:

  • Swap known-good encoder or cable:

  • Verify parameters and encoder type:

  • Inspect drive electronics:

  • Check firmware and compatibility:

  • Test under controlled conditions:

  • If internal drive fault suspected:

    • Temporarily bridge:

    If the error clears, replace the defective sensor or contactor.

    Error 607 does not automatically mean the entire drive is scrap. Use this decision matrix:

    | Condition | Action | | :--- | :--- | | Only braking resistor open | Replace resistor only | | Braking chopper failed | Repair module (cost-effective) | | Multiple aged capacitors bulging | Replace module or perform full recap | | PCB burned near DC link terminals | Replace module (repair cost exceeds value) | | Error appears on multiple axes simultaneously | Investigate mains supply or common DC bus |

    In many machines, the CNC controller (e.g., 840D) first pulls “controller enable” before “pulse enable”. Modify PLC program to ensure:

    Or install a small delay relay (e.g., 24V ON-delay timer) in series with pulse enable. simodrive 611 error 607

    Inside the power module, an IGBT transistor (the "brake chopper") turns the braking resistor on/off. If this transistor fails short-circuit, the resistor will overheat and burn open; if it fails open-circuit, the resistor never engages.