ELAU MC-4/11/03/400 PacDrive MC-4 Servo Drive 3A 400VAC

Description

Key Technical Specifications

The ELAU MC-4/11/03/400 is part of the PacDrive MC-4 servo drive family. The model designation identifies a 400 V class unit with a 3 A continuous output rating.

Product Introduction & Supply Chain Strategy

The ELAU MC-4/11/03/400 is a PacDrive MC-4 single-axis servo drive designed for synchronized motion control in industrial machinery. It combines servo amplification and motion control functions for applications such as packaging equipment, assembly machines, and high-speed automation systems.

For plants operating legacy ELAU PacDrive systems, maintaining New Original / New Surplus MC-4/11/03/400 units protects production continuity when a servo axis failure occurs. Since legacy motion hardware can have extended procurement lead times, planned buffer stock and lifecycle tracking reduce emergency purchasing exposure and Total Cost of Ownership (TCO).

Installation & Configuration Guide

Stage 1: Pre-Installation (Prep & Safety)

1. Apply lock-out/tag-out procedures before accessing the servo cabinet.
2. Confirm the replacement part number:
   • ELAU MC-4/11/03/400
3. Record:
   • Motor model
   • Encoder connection
   • Servo parameters
   • PacDrive communication settings
   • Existing fault codes
4. Photograph:
   • Power wiring
   • Motor cables
   • Communication connectors
   • Address/configuration settings
5. Wear an ESD wrist strap before handling the drive.

Required tools:

• Insulated screwdriver set
• Multimeter
• ESD protection equipment
• Servo parameter backup file

Stage 2: Removal

1. Verify AC input power is disconnected.
2. Allow DC bus discharge time according to machine safety procedures.
3. Confirm DC bus voltage is at a safe level.
4. Disconnect:
   • AC supply terminals
   • Motor output cable
   • Encoder feedback cable
   • Communication connections
5. Remove mounting hardware carefully.

Do not disconnect servo wiring under energized conditions. Stored DC bus energy can remain after power removal.

Stage 3: Installation (Clone & Seat)

1. Install the replacement MC-4/11/03/400 in the original mounting position.
2. Connect:
   • AC power supply
   • Servo motor cable
   • Encoder feedback
   • PacDrive communication wiring
3. Verify grounding connections.
4. Restore original parameter settings.
5. Confirm motor and drive assignment matches the machine configuration.

Stage 4: Power-On & Testing

1. Inspect wiring for incorrect phase connection or shorts.
2. Apply control voltage.
3. Restore main power.
4. Check drive diagnostic indicators.
5. Verify:
   • Communication with PacDrive controller
   • Servo enable status
   • Encoder feedback
   • Axis homing operation
6. Perform controlled test movement before returning equipment to production.

MC-4/11/03/400

MC-4/11/03/400

Firmware/Software Versions & Upgrade Notes

• Firmware: Verify the existing MC-4 firmware revision before replacement.
• Configuration: Save PacDrive project files and servo parameter settings before removing the original unit.
• Compatibility: Confirm compatibility with the installed PacDrive controller, motor type, and machine software version.

Upgrade Warning

Avoid firmware upgrades during a direct hardware replacement unless required. A firmware change combined with parameter changes can introduce additional troubleshooting variables.

Before replacement:

• Backup PacDrive project data.
• Record motor identification parameters.
• Save axis tuning values.
• Document existing fault history.

Frequently Asked Questions (FAQ)

Q1: Is the ELAU MC-4/11/03/400 a new unit or refurbished?

The supplied ELAU MC-4/11/03/400 is a Brand New Surplus unit. It is not removed from decommissioned equipment and is not refurbished.

Q2: Why choose New Surplus instead of refurbished inventory?

Servo drives contain power electronics, capacitors, and control components that age with operating hours and environmental exposure. New Original inventory reduces uncertainty for critical production equipment.

Q3: Is the MC-4/11/03/400 obsolete?

The MC-4 PacDrive family is a legacy motion platform. Plants still operating this hardware should evaluate lifecycle risk and maintain strategic spare inventory.

Q4: Can the servo drive be replaced while powered?

No. The MC-4/11/03/400 should be replaced only after power isolation and DC bus discharge verification. Live replacement can damage the drive and connected equipment.

Q5: Will replacing the drive erase machine programming?

The servo drive does not replace the main machine PLC program. However, axis parameters, tuning values, and drive configuration must match the original installation.

Q6: What should be verified before ordering?

Confirm:

• Exact model: MC-4/11/03/400
• Motor compatibility
• Supply voltage
• PacDrive controller type
• Existing firmware and parameter settings
• Required warranty documentation

Q7: What stocking strategy is recommended?

For production-critical packaging or motion systems, maintain 1–2 units of on-site buffer stock. For lower-criticality machines, consider centralized spare inventory or vendor-managed stock to reduce carrying costs while maintaining availability.