Key Technical Specifications
- Part Number: CP310250
- Manufacturer: Kollmorgen (Danaher Motion)
- Product Type: ServoStar SP Servo Drive Amplifier
- Rated Power: 28kW
- Input Voltage: 380V AC (3-phase)
- Drive Classification: Digital servo amplifier
- Application: Industrial servo motion control systems
- Communication: Supports Kollmorgen servo bus protocols (verify specific protocol against your system configuration)
- Condition: Discontinued — availability based on surplus inventory
- Warranty: 12 months, function verified under test conditions
Product Introduction
The Kollmorgen CP310250 is a ServoStar SP series digital servo drive amplifier, designed to control servo motors in high-performance industrial motion control applications. It accepts 380V AC 3-phase power input and delivers up to 28kW of drive output to connected servo motors, executing position, velocity, and torque control loops with digital precision.This drive belongs to Kollmorgen’s legacy ServoStar SP product line — a platform widely deployed in CNC machines, packaging equipment, and automated production systems. The CP310250 is now discontinued, meaning replacement units depend entirely on existing surplus stock. Procurement teams managing aging ServoStar SP installations should treat this as a critical spare.
Installation & Configuration Guide
Phase 1: Preparation (10 min)
- De-energize the machine and apply lockout/tagout to all power sources feeding the drive.
- Wait a minimum of 5 minutes for DC bus capacitors to discharge.
- Measure voltage across the DC bus terminals — confirm 0V before touching any terminal.
- Gather ESD protection (wrist strap, mat), torque driver, and the replacement drive.
- Photograph the existing drive’s DIP switch settings, jumper positions, and all wiring connections before removal.
Phase 2: Removal (5–10 min)
- Disconnect all motor power cables, encoder feedback cables, and control signal wiring.
- Label each cable if not already labeled.
- Remove mounting hardware and extract the drive from its panel or DIN rail.
- Inspect terminal blocks for signs of arcing, discoloration, or loose connections.
Phase 3: Installation (10 min)
- Verify the replacement CP310250 matches the removed unit’s hardware revision.
- Set all DIP switches and jumpers to match your photo record from Phase 1.
- Mount the drive securely using original fasteners at specified torque.
- Reconnect motor power, feedback, and control wiring in reverse order of removal.
- Confirm terminal tightness — loose power connections cause arcing and drive failure.
Phase 4: Power-On & Test (10 min)
- Remove lockout/tagout and restore power.
- Observe the drive’s status LEDs during boot — confirm power LED illuminates with no fault indicators.
- Verify communication with the motion controller or PLC.
- Run the drive’s built-in self-test or diagnostic routine.
- Monitor for 10 minutes under no-load conditions, checking for abnormal heat, noise, or error codes.
Troubleshooting Quick Reference
| Symptom | Likely Cause | First Check |
|---|---|---|
| No display after power-on | Blown input fuse or power supply fault | Measure voltage at drive input terminals — confirm 380V AC ±10% |
| Overcurrent fault (F02) | Motor short circuit or cable damage | Disconnect motor; measure winding resistance and insulation |
| Overvoltage fault (F06) | Missing or failed braking resistor | Check braking resistor connection and resistance value |
| Overheat fault (F15) | Insufficient cooling or blocked airflow | Inspect heatsink fins and fan operation; verify ambient temperature |
| No motor movement | Encoder feedback loss or wiring error | Check encoder cable continuity and connector seating |
| Communication fault | Bus address mismatch or cable fault | Verify DIP switch node address; reseat communication cable |
Dimensions, Mounting & Wiring Notes
- Form Factor: Panel-mount servo drive module — specific H×W×D dimensions should be verified against the physical unit or Kollmorgen ServoStar SP documentation.
- Mounting: Installed via panel mounting hardware or DIN rail, depending on the specific chassis variant.
- Wiring: Terminal assignments are configuration-specific. Always reference the wiring diagram in the Kollmorgen ServoStar SP service manual for your exact drive variant. Do not assume terminal compatibility across different ServoStar SP revisions.
FAQ
Is the CP310250 still being manufactured?
No. The ServoStar SP line has been discontinued by Kollmorgen. Available units are surplus stock — either new old stock (factory-sealed, never installed) or tested/refurbished pulls from decommissioned systems.Can I use a newer AKD series drive as a direct replacement?
Not as a drop-in. The AKD series uses different firmware, communication protocols, and configuration tools. A migration is possible but requires reprogramming the motion controller, rewiring, and re-commissioning the axis. Contact Kollmorgen application engineering for a migration plan.I’m seeing an F02 overcurrent fault — is the drive dead?
Not necessarily. F02 can be caused by a shorted motor cable, damaged motor windings, or a ground fault in the motor. Disconnect the motor cables and measure winding resistance and insulation before condemning the drive.What’s the difference between CP310250 and CP303250?
These are different power ratings within the ServoStar SP family. The CP310250 is rated at 28kW while the CP303250 is a lower-power variant. They are not interchangeable — verify your system’s required power rating before ordering.How do I know if a surplus unit has been properly tested?
Ask the supplier for a test report documenting: power-on self-test results, communication handshake verification, I/O simulation results, and load test duration. Units sold without test documentation carry higher risk.What’s the typical lead time if it’s not in stock?
Discontinued Kollmorgen drives depend on global surplus availability. Lead times can range from a few days to several months. If this drive controls a production-critical axis, securing a spare unit now reduces unplanned downtime risk.
