MH300 Series

Delta’s High Performance Compact Drive MH300 series is a new generation micro vector control that inherits Delta’s superior drive technology. With its advantages of outstanding drive performance, strong system support, and a variety of essential functions, the MH300 series is the key to improving market competitiveness and ensuring success. In addition, it features a USB port to make data uploads and downloads fast and easy, which saves the need for additional hardware and provides more installation space for the power cabinet.

Catalog FAQ

Product Introduction


Machine tools, textile machinery, woodworking, rubber and plastic, winding / unwinding applications

Outstanding Drive Performance
  • Overload capacity up to 150% / 60 sec, and 200% / 3 sec. Suitable for constant torque applications
  • Supports induction and permanent magnet motors with optional PG cards for highly precise speed and position control
  • Provides powerful torque output at low frequency (0.5 Hz / 200% without PG vector control; 0 Hz / 200% with PG vector control) for stable heavy-duty operation at low speed and high torque
  • Built-in constant tension control function
  • Speed, torque, and position control
Strong System Support
  • Built-in PLC with 5k steps; Supports system programming to save costs
  • Built-in STO (SIL2 / PL d) safety function and measures for sudden power outages
  • All models can be connected through a common DC bus
  • Built-in Modbus and CANopen interface; optional communication card, including EtherNet/IP, Modbus TCP, EtherCAT, DeviceNet, PROFIBUS DP, and PROFINET
  • Optional models with built-in filter
  • Optional 24V power supply card to reduce unexpected downtime
Flexible Expansion
  • Built-in two 33 kHz high-speed pulse input terminals (MI6 & 7) and one output terminal (DFM)
  • Built-in two accessory card slots for PG card, I/O expansion card, communication card, or 24V power card at the same time
  • Expandable to 3 DI and 3 DO, including 6 ports in total
  • Expandable to 2 or 3 relays
Advanced Tension Control
  • Built-in roll diameter calculation by linear speed, material thickness, and distance meter
  • Two PID parameters: Linearly adjustable to control tension at startup, of small / large rolls, and at high / low linear speed
  • Tension taper calculation: Automatically adjusts tension per the winding roll diameter to avoid wrinkles or deformation
  • Friction and inertia compensation for torque control: Automatically compensates friction and inertia during winding / unwinding for constant tension
  • Automatic roll change by merely using external signal without machine shutdown
Power range

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