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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Rated Supply Voltage | 3 × 380–480 VAC (−10 % / +10 %) |
| Supply Frequency | 48–62 Hz |
| Control Voltage / Current | 24 VDC (−15 % / +25 %) / 1 A |
| Continuous Output Current | 1.5 Aeff (8 kHz) |
| Peak Output Current (1 s) | 3.75 Aeff |
| Rated Power | 1.1 kVA |
| Output Voltage | 0–480 VAC |
| Output Frequency | 0–600 Hz |
| DC Bus Voltage | 530–680 VDC |
| Capacitance | 165 µF |
| Communication | SERCOS (fiber optic) |
| Protection Class | IP20 |
| Operating Temperature | +5 °C to +45 °C |
| Weight | approx. 3.1 kg |
| Dimensions (W × H × D) | approx. 100 × 400 × 320 mm |
4. Product Introduction
The ELAU MC-4/11/01/400 (order number 13130244) is a single-axis digital servo amplifier from the PacDrive MC-4 family. It integrates the mains supply, power stage, and software regulator in one compact housing and communicates exclusively via SERCOS fiber-optic link to a PacDrive controller. It is used on packaging, converting, printing, and material-handling machines that require precise position, speed, or torque control of one axis.
The drive supports both synchronous and asynchronous motors, reads the electronic nameplate for automatic configuration, and delivers 250 % overload for 1 second. Because the series is discontinued, verified New Surplus or tested units remain the practical replacement path for existing PacDrive installations.
MC-4/11/01/400
MC-4/11/01/400
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No LEDs / no power-up | Missing 24 VDC control or mains | ❌ Low | Measure 24 VDC at control terminals and 380–480 VAC at L1/L2/L3 | Verify PSU and fuses first |
| SERCOS communication timeout | Fiber cable fault or node address | ✅ High | Check fiber connectors and LED status on controller and drive | Inspect/clean fiber ends; confirm node settings |
| “Impermissible motor” fault | Wrong motor type or firmware | ✅ High | Read motor nameplate and compare with drive firmware V00.22.xx | Use only approved SH motors; match firmware |
| Overvoltage / bleeder fault | Excessive regenerative energy | ✅ Medium | Monitor DC bus voltage; check external braking resistor if fitted | Add or verify external resistor; reduce deceleration |
| Overtemperature | Blocked cooling or ambient >45 °C | ✅ Medium | Check air flow and cabinet temperature | Improve ventilation or derate load |
| Inverter Enable not active | Safety circuit open | ❌ Low | Measure Enable input voltage (20–30 VDC) | Check safety wiring and interlocks |
If the fault persists after these checks, send clear photos of the type plate, diagnostic buffer extract, and fiber status LEDs to technical support.
6. Frequently Asked Questions (FAQ)
Q: Is the MC-4/11/01/400 still in production?
A: No. Schneider/ELAU discontinued the MC-4 series years ago. Available units are New Surplus or professionally tested refurbished stock. Lead times and quantities are limited.
Q: Can I hot-swap this drive?
A: No. Power down the entire axis group, wait for the DC bus to discharge, then replace. Hot-swapping risks backplane or fiber damage and is not supported.
Q: Does the configuration stay when I replace the unit?
A: Motor parameters come from the electronic nameplate. Axis-specific parameters and SERCOS node address live in the PacDrive controller project. Download the correct project or mirror the old node address before powering up.
Q: What motors work with the 1.5 A version?
A: Primarily the ELAU/Schneider SH-series motors matched to the 1.5 A rating. Using a higher-power motor will generate diagnostic “impermissible motor.” Stick to the original combination or verify with the motor nameplate.
Q: Why is a New Surplus unit cheaper than a new factory part?
A: The model is obsolete, so remaining New Surplus inventory is priced below the old list price. Units are still original OEM product, not rebuilt.
Q: What firmware should I request?
A: Most field units run V00.22.xx. Always note the firmware of the drive you are replacing and request the same range. Mismatched firmware can cause communication or motor recognition issues.
Q: Do you supply test reports?
A: Yes. Every unit leaves with a functional test report covering power-up, SERCOS handshake, current delivery under load, and insulation check. Photos and video of the test are available on request.
