Description
Key Technical Specifications
- Model Number: S72402-NANANA-NA-225
- Manufacturer: Kollmorgen
- Product Type: Servo Amplifier (S700 Series)
- Nominal Input Voltage: 225 VAC (220V Class)
- Output Frequency: 50 Hz
- Operating Temperature: 0°C to 40°C (Requires ventilation/cooling)
- Protection Rating: IP20
- Wiring Requirement: Copper conductors only (IEC 60204 standard)
- Expansion Support: I/O 14/08, SynqNet, 2CAN modules
- Control Interfaces: RS232, Digital Mechanism Control
- Safety Features: Auto-shutdown on over-temperature
Product Introduction
Precision motion control systems often fail at the drive level long before the motors give out. The Kollmorgen S72402-NANANA-NA-225 exists to keep legacy S700 series platforms running without forcing a costly machine rebuild. It acts as the brain of the servo loop, translating digital position commands into precise current waveforms for high-frequency spindle drives, asynchronous motors, and servo motors.
Bottom line — it is a highly capable drive, but thermal management is critical. Engineers still rely on the Kollmorgen S72402-NANANA-NA-225 because its compatibility with AKM series motors and SynqNet networks makes it irreplaceable in existing automated machinery. It features an auto-shutdown mechanism if internal temperatures exceed safe limits, protecting the IGBTs from catastrophic failure. Verify your expansion card configuration before swapping, as the base unit requires specific I/O or CAN modules to communicate with the host PLC.
QA/QC Transparency SOP
- Intake & Origin Verification: We verify the S72402-NANANA-NA-225 part number against Kollmorgen’s S700 hardware database. Units are inspected for physical damage, fan operation, and heatsink condition.
- Live Functional Testing: The drive is mounted in a verified S700 test rig. We run a 4-hour burn-in, commanding multi-axis motion profiles to verify current loop stability and thermal performance.
- Electrical Parameter Tests: We perform insulation resistance tests on the motor output phases. DC bus voltage and logic power rails are checked under load using calibrated Fluke multimeters.
- Firmware/Config Verification: We read the onboard parameters via the RS232 maintenance port. The exact firmware revision and motor tuning parameters are logged and backed up before shipping.
- Final QC & Anti-Static Packaging: Only units passing all diagnostics are approved. The Kollmorgen S72402-NANANA-NA-225 is sealed in an anti-static bag with foam corner protectors to prevent connector damage during transit.
Field Engineer Gotchas
- Thermal Shutdowns: This drive has a strict 0°C to 40°C operating window. If your cabinet runs hot, the auto-shutdown will trigger. Solution: Verify your cabinet cooling fans are functional and unobstructed. I’ve seen guys blame the drive for tripping when the real issue was a clogged air filter on the enclosure.
- Expansion Card Seating: The base configuration is often upgraded with I/O or SynqNet cards. If you swap the drive and lose network comms, check the backplane connectors. Solution: Ensure all expansion cards are fully seated and secured. Vibration over years of operation can walk these cards out of the slot.
- Wiring Standards: The manual strictly requires copper conductors sized per IEC 60204. Solution: Do not use aluminum wire or undersized conductors. High-frequency PWM switching causes severe heating on improper wiring, leading to terminal meltdown.
- Motor Tuning Loss: If the SRAM battery dies during storage, the drive loses its motor tuning parameters. Solution: Expect to re-tune the servo loop on first power-up. Have your tuning software ready. Don’t assume it will run out-of-the-box after sitting on a shelf for three years.
Kollmorgen S72402-NANANA-NA-225
Application Scenarios
- CNC Machine Tools: Driving high-frequency spindle motors and axis feeds on aging milling machines, leveraging the drive’s precise current control and SynqNet networking.
- Automated Packaging Lines: Coordinating multi-axis motion for pick-and-place robots using the I/O 14/08 expansion cards for local sensor integration.
- Print and Convert Equipment: Maintaining tension control and registration on web printing presses where microsecond-level servo response is required.
- Real-World Failure Case: A packaging plant experienced intermittent axis faults on a 15-year-old Kollmorgen S700 system. Diagnostics revealed the S72402-NANANA-NA-225 was tripping on over-temperature due to a failed internal cooling fan. Swapping in a tested replacement with a verified fan restored full production, avoiding a $80k line upgrade.
FAQ
Yes. The S700 series is fully compatible with Kollmorgen AKM series servo motors. Verify the motor feedback type (resolver vs. encoder) matches your drive’s configuration.
Can I hot-swap this drive?
No. Servo drives are not designed for hot-swapping. Power down the DC bus and wait for the capacitor discharge LED to extinguish before removing the .
Why is my new drive showing an over-temperature fault immediately?
Check your cabinet cooling. The drive requires ambient temps below 40°C with adequate airflow. If your enclosure is unventilated or the ambient temp exceeds spec, the auto-shutdown will trigger instantly.
What expansion cards work with this model?
This base unit supports I/O 14/08, SynqNet, and 2CAN expansion modules. Verify your existing card configuration before ordering a replacement.
Does this drive support position control?
Yes. The supports digital position, velocity, and torque control modes via RS232 or fieldbus. Check your tuning parameters for the correct mode selection.
What is the IP rating of this drive?
IP20. This drive is designed for installation inside a closed control cabinet. It is not rated for direct exposure to dust or water.
Do you test these before shipping?
Every single one. We don’t sell “as-is” unless clearly marked. You get a test report showing motor output phase balance, firmware version, and thermal performance. If it doesn’t pass our test rig, it doesn’t go in your box.
