607 ^new^ | Simodrive 611 Error
Use a to check insulation resistance from phase-to-phase (
If an IGBT suffers an internal short circuit, an open gate, or an over-temperature breakdown, its collector-emitter voltage ( Ucecap U sub c e end-sub ) spikes out of spec during conduction.
Verify the parameter matches the physical motor data plate exactly.
: High current surges can blow the internal power fuses (often rated up to 315A in large LT-modules), instantly cutting off the phase delivery.
If an external force (gravity on a vertical axis, a large flywheel, or a second motor) drives the motor beyond its setpoint speed, the regenerative energy overwhelms the braking system. Common in: simodrive 611 error 607
The external braking resistor (often labeled like "6SN1113-1AB00-0DA1") is the first line of defense. If it becomes open-circuit (burnt out), disconnected, or has incorrect resistance, the drive has no path to dump regenerative energy.
Follow this structured diagnosis sequence from easiest to hardest to isolate whether your fault lies in the cabling, the motor, or the drive electronics. Step 1: Safe Volumetric & Mechanical Checks
: Inspect the motor power cables for breaks and ensure the terminals on both the motor and the Simodrive module are tight.
Based on real-world service reports, here are the most effective solutions: Use a to check insulation resistance from phase-to-phase
“You want to rebuild the power module?” Lena asked, eyes wide.
If the Error 607 to the new axis, the control card is defective and must be repaired or replaced.
A less intuitive cause: A phase-to-ground short in the motor cable can create asymmetric voltage spikes that reflect back into the DC link, causing an overvoltage condition. This often triggers 607 alongside other faults like 608 or 314.
If the axis is seized or requires immense effort to turn, repair the mechanical way-guides, bearings, or braking system. Step 2: Inspect the Power Cables and Motor If an external force (gravity on a vertical
A common scenario: A vertical milling machine with a heavy spindle head. When the operator executes a rapid downward move and then an emergency stop, the spindle head tries to decelerate. The kinetic energy of the heavy axis, combined with gravity (which pulls downward even during deceleration), overwhelms the braking resistor. Error 607 appears.
When troubleshooting high-voltage DC links, respect the stored energy. Even when disconnected, a 611 drive can deliver a lethal shock. When in doubt, call a certified Siemens drive technician.
He looked at the Simodrive’s display one last time. The number 607 was gone, replaced by the blissful green glow of It wasn’t just an error code fixed. It was a reminder that in a world of disposable machines, a little stubborn knowledge and a steady hand could still make the heart beat again.