Data Sheet

RoboClaw 120A/160A/200A Dual Channel Motor Controller Data Sheet

Contactors, Relays and Solenoids

As a safety precaution an external power disconnect device should be used. A disconnect such as a contactor, relay or

solenoid with the proper ratings for the planned load. The disconnect devices contacts should be rated for the total current

output of both motor channels combined. The disconnect device can be controlled by the DOUT pins or a simple manual

switch. The DOUT pins are designed to control inductive loads. They can be toggled by users commands. The wiring diagram

below illustrates a basic wire scheme using a relay as a disconnect for the main power. The DOUT controls the ground to the

relay coil. The positive terminal of the relay coil can be connected several ways depending on its rated voltage. The diagram

below shows a 12VDC logic battery and a 12VDC Relay. If the relay coil is 5VDC the regulated user output (BEC) could be

used instead. The main battery can also be the power source provided a logic battery is present.

Battery

Motor 1

Motor 2

M1A

M1B

M2B

M2A

B-

B+

ROBOCLAW

Logic

Battery

RY1

SW2

LB+

GND

LB+

DOUT