ESR Pollmeier GmbH
Servo Drive Technology

MidiDrive D

Characteristics of the MidiDrive D servo drives
  • Digital servo drives for AC servo motors
  • Compact drives for control cabinet installation, complete with built-in power supply for direct connection to 230 V AC or 3 × 400 V three-phase mains (3 × 480 V on request)
  • Design conforms to EMC requirements (CE marked; class A standard, class B through accessories)
  • Full digital servo drives with 2 processors: signal processor and 16-bit microcontroller
  • High dynamics and control quality through signal processor for digital control of current and speed (controller cycle time 62.5 Ásec)
  • Position control loop (cycle time 1 msec) integrated, setting the target positions via communication interfaces (standard) or positioning control with 500 blocks (option)
  • 8 digital inputs, 4 digital outputs
  • Pilot frequency mode (pulse inputs, direction same as stepper motor controls) as an option
  • Communication via one serial port, RS 232C (standard) and optionally Interbus, CANopen, or Profibus-DP according to DRIVECOM profile 22 or Sercos interface
  • Easy wiring, since all connections can be plugged in at the front and at the top
  • Comfortable installation using a personal computer
  • Operating modes and technology functions in command mode or program mode*: torque mode, speed mode, profile position mode, electronic gearing, flying shear*, electronic cam disk*, fine interpolation*
    (* = optional)
Data sheet 6730.250 – MidiDrive D (PDF, 242 kB)

Order number BN 6731 BN 6732 BN 6741 BN 6742 BN 6743
Mains connection * 230 V AC ▒10%, 50 .. 60 Hz 3 × 400 V ▒10%, 50 .. 60 Hz
Bus voltage 320 V DC 560 V DC
Rated current, rms value 2 A 4 A 2 A 4 A 8 A
Peak current
(crest value)
5.5 A 11 A 5.5 A 11 A 22 A
For AC servo motors
– Rated torque
– Shaft power
up to 1.0 Nm
up to 0.5 kW
up to 3.5 Nm
up to 1.0 kW
up to 3 Nm
up to 0.8 kW
up to 7 Nm
up to 1.8 kW
up to 17 Nm
up to 4.2 kW
Switching frequency 16 kHz
Control supply voltage 24 V DC ▒20%, 0.8 A
Dimensions ** w×h×d 85 × 255 [275] × 200 mm 95 × 270 [305] × 200 mm
* 3 × 480 V on request
** without [with] mounting straps

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