Simodrive 611 Error 607 -

If the internal 24V mechanical brake fails to release completely, the motor fights its own brake, overloading the current loop. 2. Motor and Power Cable Issues

: Disconnect the orange motor power cable at both ends. Use a digital multimeter to verify phase-to-phase impedance directly on the motor terminals.

Crucially, this error is a protective measure. It signals that the drive cannot deliver the required power to the motor, preventing damage to the drive, motor, or machinery. The error code is the standard identifier for this condition across the SIMODRIVE 611 series. Fault 607 is also one of those that can be configured to initiate either a STOP I or STOP II response, as specified in parameters P1612 and P1613 , depending on how your system is set up.

is closely related. While 607 is about the drive's internal current limitation, 608 is about the external speed or position controller's output being saturated. In practice, they often appear together: a mechanical jam (608) can cause the drive to demand excessive current, leading to a 607 alarm. Similarly, a faulty drive (607) may fail to move the motor, causing the CNC controller to throw a 608 contouring error. Both errors share common causes like a missing motor phase or a stuck brake. simodrive 611 error 607

Swap known-good encoder or cable:

As indicated in the documentation, sometimes a simple power-off/power-on cycle can clear the fault, especially if it was caused by a transient issue. If it returns immediately, proceed to step 2. 2. Check Motor Connections and Cable

: Loose connection screws or low voltage across the unified DC link busbars that distribute power among the Simodrive line-up. If the internal 24V mechanical brake fails to

If troubleshooting becomes too complex or risky, do not hesitate to consult a professional. Siemens does not endorse independent component-level repairs, as they can carry significant risk. The safest route is to contact Siemens-trained personnel for diagnosis and repair options.

Attempt soft reset:

Follow these steps in order to efficiently pinpoint the cause. Use a digital multimeter to verify phase-to-phase impedance

: Damage to the motor supply cable, loose connectors, or poor contact between the inverter and motor.

: High current surges can blow the internal power fuses (often rated up to 315A in large LT-modules), instantly cutting off the phase delivery.

To resolve Error 607, technicians typically follow a systematic troubleshooting workflow:

: Inspect the motor supply cable (the orange cable) and its plugs for damage or loose pins.