The GM-CTRL-1 is a programmable PWM speed controller designed for brushed DC motors operating from 6 to 60 VDC. It allows precise motor speed control, programmable acceleration and deceleration, adjustable PWM frequency, and configurable operating limits for OEM, industrial and laboratory applications.
The GM-CTRL-1 is suitable for controlling brushed DC motors used in:
The GM-CTRL-1 is designed to make speed control of brushed DC motors straightforward.
A typical setup requires only three components:
After connecting the power supply and motor, simply power up the controller, adjust the desired speed using the rotary encoder and, if required, configure parameters such as Soft Start, maximum speed or PWM frequency.
DC Power Supply
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| GM-CTRL-1 |
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Brushed DC Motor
| Parameter | Specification |
|---|---|
| Input Voltage | 6–60 VDC |
| Output Voltage | PWM controlled (equal to input voltage) |
| Continuous Output Current | 20 A |
| Peak Output Current | 30 A |
| Control Method | PWM |
| Motor Type | Brushed DC Motors |
| Speed Range | 0–100% |
| Speed Adjustment | Digital Rotary Encoder |
| PWM Frequency | 1–100 kHz |
| Soft Start | Adjustable |
| Soft Stop | Adjustable |
| Display | 3-digit LED |
| Connections | Screw Terminal Block |
| Mounting | Panel Mount |
| Panel Cut-Out | 92 × 56 mm |
| Overall Dimensions | 96 × 61 × 34 mm |
| Weight | 105 g |
The GM-CTRL-1 allows complete customization of motor behavior through six programmable parameters.
| Function | Description | Range |
|---|---|---|
| F1 | Soft Start Time | 0–10 s |
| F2 | Soft Stop Time | 0–10 s |
| F3 | Minimum Speed Limit | 0–80% |
| F4 | Maximum Speed Limit | 0–100% |
| F5 | Speed Adjustment Step | 1%, 2%, 5%, 10%, 15%, 20%, 25% |
| F6 | PWM Frequency | 1–100 kHz (15 kHz default) |
These parameters enable the controller to be optimized for different motor sizes, load characteristics and application requirements.
The controller is operated using a single rotary encoder with integrated push-button.
Starts or stops the motor.
Enters the setup menu or saves the current settings.
Increases speed or parameter value.
Decreases speed or parameter value.
Moves to the next programmable parameter.
The GM-CTRL-1 is designed for straightforward panel installation.
Use a DC power supply only.
Supported voltage:
6–60 VDC
Connect only conventional brushed DC motors with two-wire terminals.
Do not use with brushless (BLDC) motors.
Connect the power supply observing the correct polarity.
Connect the motor to the output terminals.
After power-up, adjust the required speed using the encoder.
Panel Cut-Out
92 × 56 mm
Overall Controller Size
96 × 61 × 34 mm
The controller regulates motor speed using Pulse Width Modulation (PWM).
Instead of reducing the supply voltage, PWM rapidly switches the motor supply on and off while varying the duty cycle.
This method provides:
Compared with basic PWM controllers, the GM-CTRL-1 provides:
No.
It is designed exclusively for brushed DC motors with a conventional two-wire connection.
No.
All parameters are stored in non-volatile memory and remain unchanged after power loss.
Different motors can exhibit different acoustic noise, efficiency and operating characteristics.
Adjusting the PWM frequency allows the controller to be optimized for the application.
Yes.
The maximum speed can be limited using parameter F4.
Yes.
The programmable Soft Start function gradually increases motor speed, reducing mechanical stress and current peaks.
Yes.
Its compact size, programmable parameters and panel-mount design make it well suited for OEM machine integration.
The GM-CTRL-1 is compatible with the following GM Series brushed DC gear motors:
Specifications are subject to change without notice.
Possible causes:
Possible causes:
Possible causes:
Possible causes:
Possible causes:
Possible causes:
Possible causes:
If the problem persists after checking the items above, contact Amironic with the motor model, supply voltage, load description and controller settings. This information will help us provide faster technical support.
