MC-4/11/22/400

Configured for servo motor position, velocity, and torque control in the PacDrive motion control system, the Schneider Electric / ELAU PacDrive MC-4/11/22/400 (MC-4 Servo Drive) provides direct three-phase AC motor power conversion and SERCOS real-time communication. The unit supports permanent magnet synchronous AC servo motors, encoder feedback, fast digital inputs, and selectable PWM switching frequencies.

Hardware Specifications

Parameter	Specification
Model	MC-4/11/22/400
Brand	Schneider Electric / ELAU
Product Series	PacDrive MC-4 Series
Product Type	AC Servo Drive
Mains Input Voltage	3 x 400 to 480 VAC, +/- 10%
Mains Frequency	48 to 62 Hz
Continuous Output Current	11 A rms
Peak Output Current	22 A rms
Output Voltage	3-phase, 0 to 480 VAC
Output Frequency	0 to 600 Hz
DC Bus Voltage	Approx. 560 to 680 VDC
Control Voltage Supply	24 VDC, +/- 10%
Compatible Motors	Permanent magnet synchronous AC servo motors
Feedback Systems	Hiperface encoder; Sin/Cos absolute or incremental encoders
Control Modes	Position, velocity, torque/current
PWM Switching Frequency	4 kHz / 8 kHz, selectable
Fieldbus	SERCOS interface, optical fiber
Digital Inputs	Integrated fast digital inputs
Feedback Interface	Sub-D connector
Safety Function	STO / safety input options, depending on sub-variant
Operating Temp	0 to +45 deg C
Storage Temp	-25 to +70 deg C
Degree of Protection	IP20
Cooling	Forced air cooling with built-in fan
Weight	6.26 lb

PacDrive Motion Control and SERCOS Synchronization

The MC-4/11/22/400 performs AC power conversion for servo motor control from a 3-phase 380 to 480 VAC class supply. Its continuous output current is 11 A rms, with a peak output current of 22 A rms for dynamic acceleration and load conditions.

SERCOS communication is provided through an optical fiber interface for real-time coordination within the PacDrive motion system. Encoder feedback is connected through the dedicated Sub-D interface, while integrated fast digital inputs can receive touch-probe or registration-mark signals.

The drive supports position, velocity, and torque/current control modes. A selectable 4 kHz or 8 kHz PWM switching frequency provides the specified motor control operating modes. The DC bus operates at approximately 560 to 680 VDC.

Frequently Asked Questions

Q: What motor feedback systems are supported by the MC-4/11/22/400?
A: The supplied specifications identify Hiperface encoder and Sin/Cos absolute or incremental encoder feedback.

Q: What are the continuous and peak output current ratings?
A: The continuous output current is 11 A rms and the peak output current is 22 A rms.

Q: What communication interface is provided for PacDrive synchronization?
A: The unit provides a SERCOS interface using optical fiber for real-time motion system synchronization.

Field Installation Guidelines

Install the MC-4/11/22/400 inside a suitable control cabinet because the enclosure rating is IP20. Provide the specified 3-phase AC supply and a separate 24 VDC control supply according to the electrical installation requirements.

Route motor power wiring separately from encoder and SERCOS communication cables to reduce electrical interference. Connect the motor feedback cable to the designated Sub-D interface and maintain proper shielding and cabinet grounding practices.

Provide sufficient cabinet airflow for the forced-air cooling system and keep ventilation paths clear. Verify the incoming mains voltage, phase arrangement, control voltage, motor compatibility, encoder type, and SERCOS connection before energizing the drive.

Where the installed sub-variant provides STO or other safety inputs, wire these circuits according to the applicable machine safety design and the corresponding drive documentation.

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