In brief: Servo drive selection for electric cylinder motion begins with a compatible motor and the required force-speed profile. Match the entire electrical and control system.
servo drive selection for electric cylinder: engineering checks
Use the application drawing, motion profile and exact component manuals. Record the operating baseline before changing settings so that a correction can be verified under the same load and cycle.
Match motor and power
Confirm rated voltage, continuous and peak current, motor type, encoder interface and braking requirements against the motor datasheet. Similar power ratings do not prove two drives are interchangeable.
Check the motion interface
Decide whether the PLC sends pulse, analog or network commands and whether the machine needs position, speed or torque mode. Verify fieldbus support, cycle time and diagnostics with the exact drive model and firmware.
Plan safety and regeneration
Review emergency stop, safe torque off where required, vertical load holding and regenerative energy during deceleration. These depend on machine risk assessment and selected hardware. A motor brake is not automatically a safety brake.
Commission with evidence
Verify wiring, grounding, feedback direction and parameter backups. Start at reduced speed with travel limits in place, then test the actual payload and duty cycle. Log current, following error and drive temperature.
What to document
- Actuator, motor and drive models, payload, stroke, orientation and duty cycle.
- Alarm code, current, command and actual position at the first symptom.
- Mechanical alignment, external guidance, travel limits and safety response.
- One controlled change and a repeat test under the full production cycle.
Frequently asked question
Can I use one force or accuracy value for every model? No. Ratings depend on screw, motor, drive, mounting and duty. Ask for the datasheet and a review of the actual load case.
For adjacent topics, see the NEFEIT resource center, selection guide and failure diagnosis. Contact NEFEIT engineering with your drawing and trace data. For general guidance on linear motion components, consult THK technical resources alongside the actual component manuals.