Nidec Control Techniques Unidrive M400 VFD

Optimised Throughput with Unidrive M400 VFD

The Unidrive M400 VFD by Control Techniques is exceptional at combining the ease of use of our general-purpose range with the capabilities of our high-performance Unidrive M Series. Add in an impressive I/O count, dual Safe Torque Off (STO), and an integrated PLC, all of which contribute to making the M400 an extremely capable inverter.

The All-Rounder Motor Drive of Choice for OEMs

• Minimise downtime and set-up: Designed with special attention to robustness and reliability. The multi-language 3-line display, together with intuitive navigation buttons, aids fast setup and diagnostics.
• Improve throughput: The Rotor Flux Control (RFC-A) mode gives maximum stability and control over induction motors at all powers.
• Reduce system costs: Incorporates an onboard PLC which can execute Machine Control Studio programs for logic control, sequencing, and speed following—removing the need for additional PLCs.
• Conform to safety standards: The Unidrive M400 VFD features integrated dual Safe Torque Off (STO) inputs, certified to SIL3 / PLe, providing a reliable safety solution.

Advanced Features of Unidrive M400

1. Advanced Keypad Options

• Informative, multi-language, 3-line display aids setup.
• 4 navigation buttons facilitate intuitive programming.
• Keypad options include: Drive mounted LCD keypad (CI-Keypad), Remote IP66 keypad, or No Keypad (Control performed by PC or fieldbus).

2. Direct Application Integration

• The onboard PLC executes programs for logic and sequencing with real-time tasks.
• Option to fit an SI module to add fieldbus communications or additional I/O.

3. Advanced Open Loop Motor Control

• Rotor Flux Control (RFC-A) for maximum stability.
• 180% motor overload suitable for heavy industrial machinery applications.
• Precise frequency following from an encoder or frequency/direction inputs.