In the world of CNC maintenance, the is a reliable workhorse, but when the LED display flashes Error 607 , it’s a clear signal that the drive's current controller has hit its limit. The Story of the Stalled Spindle
Error 607 usually points to encoder/feedback related issues but can stem from multiple layers (mechanical, electrical, firmware, parameter). A systematic diagnostic approach — verify wiring, power, signal integrity, parameters, and hardware — minimizes downtime. Where component-level repair is needed, use certified parts and follow Siemens service guidance.
the actual position of the axis (from the encoder) does not match the command position within the defined tolerance limits Likely Causes Mechanical Resistance:
: There may be a break in the motor power cable or a loose connection in the plug. Motor Issues : Internal winding failure or high resistance in the motor. DC Link Problems simodrive 611 error 607
: Due to the high voltages involved in the DC link (~600V), always wait at least 5 minutes after powering down for capacitors to discharge before touching connections. If the LT-module or control card is found to be defective, professional component-level repair is often more cost-effective than purchasing new replacement units.
If the fault , the internal IGBTs or current-sensing circuits are defective. The power section needs repair.
5-axis CNC machining center with Simodrive 611 on the Z-axis. In the world of CNC maintenance, the is
Jack arrived at the machine and began to investigate. He checked the basics: power supply, connections, and communication cables. Everything seemed fine. He then accessed the SimoDrive 611's diagnostic menu and ran a quick test. The results confirmed the error code 607. Jack knew that this error typically indicated a problem with the encoder feedback system, which measures the motor's position and speed.
Step 5: Review ParametersIn some cases, if the "Current Limit" parameters (such as MD 1105 or similar machine data) are set too low for the application's demands, the drive will trip prematurely. Ensure no parameters were accidentally altered. Professional Repair and Support
To resolve Error 607, technicians typically follow a systematic troubleshooting workflow: Where component-level repair is needed, use certified parts
: Wait at least 5 to 10 minutes after complete power down for the internal capacitor bank to fully discharge.
can send "funny" signals that make the servo behave erratically and hit its limits. Faulty Control Module
If the drive powers up briefly without tripping:
Lena held the fire extinguisher. Dieter backed away. Fatima crossed her arms.
Step 1: Inspect the Mechanical SystemBefore swapping electronics, ensure the axis moves freely. Manually turn the ballscrew if possible (with power off and safety protocols followed). Check if the mechanical brake is receiving the proper 24V signal to release.