ELAU MC41103400 PacDrive MC-4 Servo Drive 3A 400VAC

Key Technical Specifications

Technical data references identify MC-4/11/03/400 as a 3 A servo drive with 380–480 VAC three-phase supply, 24 VDC control supply, and 7.5 A peak current capability.

Product Introduction & Supply Chain Strategy

The ELAU MC41103400 (MC-4/11/03/400) is a PacDrive MC-4 single-axis servo drive used for industrial motion applications requiring synchronized servo control. It provides power conversion and axis control for packaging machines, assembly equipment, and automated production systems.

For facilities operating legacy ELAU PacDrive equipment, maintaining New Original / New Surplus MC41103400 units reduces downtime exposure from servo drive failures. Because this component is discontinued by the manufacturer, planned last-time-buy purchasing, lifecycle tracking, and on-site buffer stock can reduce emergency procurement costs and improve Total Cost of Ownership (TCO).

MC-41103400

MC-41103400

Installation & Configuration Guide

Stage 1: Pre-Installation (Prep & Safety)

1. Apply lock-out/tag-out procedures before accessing the servo cabinet.
2. Verify the replacement part number:
   • ELAU MC41103400
   • MC-4/11/03/400
3. Record existing parameters:
   • Servo motor model
   • Encoder feedback type
   • Axis assignment
   • PacDrive controller configuration
   • Existing alarm history
4. Photograph:
   • Power terminals
   • Motor cable connections
   • Feedback connectors
   • Communication wiring
5. Wear an ESD wrist strap before handling the servo module.

Required tools:

• Insulated screwdriver set
• Multimeter
• ESD protection equipment
• PacDrive configuration backup

Stage 2: Removal

1. Disconnect incoming AC power.
2. Wait for DC bus discharge according to manufacturer safety procedures.
3. Verify DC bus voltage is at a safe level.
4. Disconnect:
   • Three-phase power input
   • Motor output cable
   • Encoder feedback cable
   • Communication connections
5. Remove mounting hardware carefully.

Important: Servo drives contain stored DC bus energy after shutdown. Do not remove wiring until voltage has been verified safe.

Stage 3: Installation (Clone & Seat)

1. Mount the replacement MC41103400 in the original cabinet location.
2. Connect:
   • 380–480 VAC supply
   • Servo motor output
   • Encoder feedback
   • PacDrive communication interface
3. Verify grounding connections.
4. Restore original servo parameters.
5. Confirm axis assignment matches the machine configuration.

Stage 4: Power-On & Testing

1. Inspect all wiring for incorrect connections.
2. Apply 24 VDC control power.
3. Energize the main supply.
4. Check drive diagnostics.
5. Verify:
   • Controller communication
   • Servo enable status
   • Encoder feedback
   • Motor rotation direction
   • Homing sequence
6. Perform controlled motion testing before production restart.

Firmware/Software Versions & Upgrade Notes

• Firmware: Verify existing PacDrive firmware revision before replacement.
• Configuration Data: Save servo parameters and axis configuration before removing the original drive.
• Compatibility: Confirm compatibility between:
  • MC41103400 drive
  • PacDrive controller
  • Servo motor
  • Machine software version

Upgrade Warning

Avoid firmware upgrades during a direct servo drive replacement unless required. Changing firmware and hardware simultaneously increases troubleshooting complexity.

Before replacement:

• Backup PacDrive project files.
• Record motor identification data.
• Save axis tuning parameters.
• Document existing drive alarms.

Frequently Asked Questions (FAQ)

Q1: Is the ELAU a new unit or refurbished?

The supplied is a Brand New Surplus unit. It is not pulled from decommissioned machinery and is not refurbished.

Q2: Why is New Surplus preferred over refurbished servo drives?

Servo drives contain power semiconductors, capacitors, and control electronics that experience aging from operating hours and thermal cycling. New Original inventory reduces uncertainty for production-critical motion equipment.

Q3: Is obsolete?

Yes. The MC-4/11/03/400 is a legacy ELAU PacDrive component and is listed as discontinued by the manufacturer. Plants still operating MC-4 systems should evaluate lifecycle risk and maintain spare availability.

Q4: Can the be hot-swapped?

No. Servo drive replacement requires complete power isolation and DC bus discharge verification. Live replacement can damage the drive and connected motor system.

Q5: Will replacing this servo drive erase machine programming?

The main PLC or PacDrive project is not stored in the servo drive. However, axis parameters, motor data, and drive configuration must match the original setup.

Q6: What should be verified before ordering?

Confirm:

• Exact model:
• Input voltage: 380–480 VAC
• Output current requirement: 3 A
• Servo motor compatibility
• PacDrive controller type
• Firmware and parameter configuration

Q7: What stocking strategy is recommended?

For packaging lines or machines where servo failure stops production, maintain 1–2 units of on-site buffer stock. For multiple machines using the same drive, consider centralized spare holding and vendor consolidation to reduce carrying costs while protecting availability.