DC motor controllers over 10A

EM-243C-JS1 DC Motor Controller

Key Features

Full-bridge DC motor starter for joystick-controlled systems
Adjustable acceleration and deceleration ramps for smooth motion
Adjustable current limit for motor protection and end-stop function
Two selectable speeds with separate forward and reverse ranges
Automatic joystick calibration for forward, reverse, and midpoint
Configurable NPN or PNP input logic
Start-kick function to prevent motor jamming
Fault and disable terminals for synchronized stop

Overview

EM-243C-JS1 is a full-bridge DC-motor starter designed for joystick-controlled applications. It provides smooth and precise control of DC motors, making it ideal for motion systems requiring ramped starts and stops, dual-speed operation, and robust protection features.

Adjustable acceleration and deceleration ramps ensure smooth motor operation, while the current limit function protects against overcurrent and can act as an electronic end-stop. The device supports two independently adjustable speed ranges for forward and reverse directions.

Joystick Control and Fault Handling

The control input is optimized for joystick use. Automatic joystick calibration is activated via a calibration function, detecting forward, reverse, and neutral positions. The FAULT terminal operates simultaneously as an input and output — normally high, and pulled low in case of overheat or current trip. Pulling the FAULT line low externally stops the motor and prevents restart, allowing multiple units to be linked together for synchronous stop operation.

Special Functions

Start-kick to increase starting torque in heavy load or jam risk situations
Selectable input logic — each limit input can be configured for NPN or PNP operation
Integrated brake output for magnetic brake or overvoltage braking resistor

Parameter Setting and Monitoring

Parameter adjustment such as ramp time, speed range, and current limit can be made using various EM-interface units. Operation status and functional values can be monitored with these same devices.

Technical Data EM-243C-JS1

Supply voltage nominal	12–48 V (limits 10–58 V)
Start-up / shutdown voltage	9 V / 8 V
Idle current	typ. 15 mA
Motor current (2 kHz PWM)
100 % PWM	50 A continuous
20–99 % PWM	35 A continuous, 100 A peak (5 s)
Motor current (16 kHz PWM)
100 % PWM	40 A continuous
20–99 % PWM	20 A continuous, 60 A peak (5 s)
Current limit adjustable	1–100 A
Note	Current limit increases 50 % at start
Overheat limit	100 °C
Start / stop ramp adjustable	0–5 s
PWM frequency	2 kHz or 16 kHz (selectable)
Joystick input scale	0–5 V or 0–10 V (if DIP 1 ON)
Input control logic	High = 4–30 V / Low = 0–1 V
Control input impedance	typ. 10 kΩ
Control input response time	typ. 5 ms
Fault output	NPN open collector max. 50 V / 1 A
Fault input activation	Uin < 1 V (NPN)
Brake output	NPN max. 5 A / 60 V
Fan output	NPN max. 2 A / 40 V
Motor & supply connectors	4 mm
Control connectors	1 mm
Dimensions	107 × 72 × 40 mm
Dimensions (DIN-rail base)	110 × 80 × 55 mm
CE testing	Industrial environment (EMC approved)
Operating temperature (Ta)	−40 … +60 °C
Weight	190 g