M4225-00020A Kollmorgen
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The Kollmorgen M4225-00020A is a power unit from the M4000 Digital DC Drives series, featuring an output power of 25 HP and operates with an input voltage of 230 VAC in three-phase configuration. It offers an armature voltage of 240 VDC, AC full load current of 35 A, and a DC full load current of 42.6 A. The drive has 10 programmable digital inputs, 5 programmable digital outputs, and includes a serial RS-485 interface.
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Product Description:
The M4225-00020A is a digital DC drive power unit produced by Kollmorgen in the M4000 Digital DC Drives series. This drive converts fixed AC utility power into a regulated DC output so that brushed motors can run with closed-loop speed and torque control in packaging lines, winding stations, and other industrial automation equipment. It combines power conversion, field supply, and programmable logic in one chassis, which helps simplify panel layout in multi-axis systems. The integrated design also reduces the amount of external hardware needed for coordinated motor control.
During steady operation, the drive supplies a continuous mechanical output of 25 HP from an armature link maintained at 240 VDC. To support that output, the rectifier section draws 35.0 A of AC line current and delivers 42.6 A of controlled DC to the motor. Short overloads are permitted up to 150% for 1 minute, giving the connected machine added torque for breakaway loads and temporary process peaks. The field circuit operates at 150 VDC and supports field weakening, allowing higher speed operation without exceeding the base armature voltage. The unit is classified as a power unit, and its optically isolated digital outputs can source 40 mA for status indication or external interlocks.
An RS-485 serial port allows parameter changes and diagnostic communication with a PLC or other supervisory control device. Control commands enter through ten programmable digital inputs, while process feedback is provided through five programmable digital outputs, giving the drive flexible integration options for machine logic. Mains power is supplied through a 3-phase input at 230 VAC, and the power section is non-regenerative, so excess kinetic energy is dissipated instead of being returned to the grid. A relay contact rated for 250 VAC at 5 A is also available for auxiliary switching functions such as motor contactors or brake release circuits.
Frequently Asked Questions about M4225-00020A:
Q: What armature voltage does the Kollmorgen M4225-00020A digital DC drive provide?
A: This model can deliver an armature voltage of 240 VDC during operation.
Q: What type of input power does the M4225-00020A require?
A: The M4225-00020A operates on a 3-phase, 230 VAC input supply.
Q: How many programmable digital inputs are available on the M4225-00020A?
A: This drive supports up to 10 programmable digital input channels for application flexibility.
Q: Does the Kollmorgen M4225-00020A feature regenerative braking?
A: The M4225-00020A model is non-regenerative and does not support energy regeneration during braking.
Q: What is the output power rating of the M4225-00020A drive?
A: This drive delivers an output power of 25 horsepower.
