Before attempting any repairs, ensure all power is safely disconnected and the DC bus capacitors have completely discharged (wait at least 5 minutes after powering down). 1. Perform Initial Measurements
: If the error persists after a reset and power cycle, consider replacing the SIMODRIVE 611 Power Module or control module.
He called in a colleague, an experienced motor specialist, to help him test the motor and encoder. Together, they performed a series of electrical tests on the motor and encoder. The tests revealed that the resolver, which is a type of encoder used in the SimoDrive 611 system, was faulty.
The SIMODRIVE 611 expects a strict order of enable signals: simodrive 611 error 607
If the main Infeed/Regen module (NE module) drops voltage due to a faulty mains supply, the axis drive modules must output more current to compensate, quickly saturating the controller. 3. Step-by-Step Diagnostic and Troubleshooting Flowchart
Internal ribbon cables between the control board and power board oxidize. Remove, clean with isopropyl alcohol, and reseat.
The fault is triggered during motor activity when the drive detects an inability to "impress" the required current into the motor windings. Common root causes include: Before attempting any repairs, ensure all power is
Turn off the power, remove the front control card from the faulted drive, and swap it with an identical card from a working axis. Note: Ensure you backup parameters or swap the memory modules if applicable. If the fault moves with the card, the control card is defective.
While the drive is dismantled, visually and electrically inspect the snubber capacitors and resistors for signs of burning, leaking, or physical damage. Operating the drive with failed snubber components is dangerous and should be avoided. 4. Evaluate the Infeed Module
: A defective control module (LT-module) or power section. He called in a colleague, an experienced motor
For more technical specifics, you can refer to the official Siemens SiePortal support forums or the SIMODRIVE 611 universal Function Manual . Simodrive 611: error 607 etc. - Siemens SiePortal
Mark and swap the power output cables and the matching encoder control cables at the drive module face between the failing axis and an identical working axis. Boot up the machine carefully. :