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MP4-055-03 Copley Controls

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The Copley Controls MP4-055-03 is a four-axis controller in the Bantam M-Axis Controllers series. It provides a continuous and peak output current of 3 Amps per axis with a PWM frequency and current loop sample rate of 12.5 kHz. The controller supports supply voltages between 14 and 55 VDC and includes 24 high-speed digital inputs and 8 MOSFET digital outputs.

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Product Description:

The MP4-055-03 is a motion controller produced by Copley Controls for the Bantam M-Axis Controllers series. It combines power stages with embedded control logic to drive multiple servo axes from a single compact module, streamlining cabinet layouts in automated assembly, packaging, and laboratory equipment. In an industrial automation setting, the controller translates high-level position or velocity commands into precise current regulation, allowing coordinated motor operation without external amplifier racks. Because control and power electronics are integrated in one unit, the system can reduce interconnect length between the controller and the attached motors. This format is well suited to compact equipment where several axes must share one controller while maintaining synchronized response.

Internally, the controller allocates 4 fully independent axes, and each axis is supported by a continuous output of 3 Adc so matched motors can run under steady load without overheating the output stage. The current loop hardware samples at 12.5 kHz, enabling rapid correction of phase errors and accurate torque control even on low-inductance windings. It also provides 24 optically isolated high-speed inputs for machine status or sensor feedback, along with 8 MOSFET outputs for actuator or relay commands. Optical isolation helps separate field signals from the motion electronics, which improves noise immunity around switching devices. This arrangement allows the controller to coordinate axis motion with sensors, interlocks, and peripheral devices.

For proper commutation, the connected motor phase inductance must not fall below 200 µH, which helps keep the current regulator stable at the fixed PWM frequency. During transient moves, the output stage can sustain its peak rating for 1 s before returning to continuous limits. The high-voltage rail accepts supplies from +14 Vdc up to +55 Vdc, allowing the same controller to operate in battery-based mobile platforms or fixed installations with rectified bus lines. The housing measures 101.6 × 76.2 × 20.83 mm, which helps conserve panel depth while still providing screw terminals and ribbon connectors for wiring. Its compact enclosure also fits applications where control hardware must be installed in shallow spaces or tightly packed assemblies.

Axes
4
Continuous Output Current (per Axis)
3 Adc
Current Loop Sample Rate
12.5 kHz
Digital Inputs (hs)
24
Digital Outputs (mosfet)
8
Minimum Load Inductance
200 μH
Peak Output Current (per Axis)
3 Adc
Peak Time
1 s
Pwm Frequency
12.5 kHz
Size
101.6 x 76.2 x 20.83 mm
Supply Voltage (hv) Max
+55 Vdc
Supply Voltage (hv) Min
+14 Vdc

Frequently Asked Questions about MP4-055-03:

Q: How many axes can the MP4-055-03 controller manage at once?

A: The MP4-055-03 from Copley Controls can control up to four separate motor axes simultaneously.

Q: What is the continuous output current per axis on the MP4-055-03?

A: Each axis of the MP4-055-03 provides a continuous output current of 3 Adc.

Q: How many high-speed digital inputs does the MP4-055-03 offer?

A: The controller is equipped with 24 high-speed digital inputs for system integration.

Q: What is the minimum load inductance requirement for the MP4-055-03?

A: The minimum load inductance for this controller is 200 μH, ensuring safe motor operation.

Q: What supply voltage range does the MP4-055-03 controller support?

A: The supported supply voltage range for the MP4-055-03 is between +14 Vdc and +55 Vdc.


Internal Product Review

  • ‘‘The MP4-055-03 is a 4-axis Bantam M-Axis controller from Copley Controls with 3 Adc continuous output current per axis. A 12.5 kHz current loop sample rate paired with a 12.5 kHz PWM frequency supports precise current regulation and smooth motion performance. A +14 to +55 Vdc supply range gives the controller strong integration flexibility for compact multi-axis systems.’’

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