Roboteq's VSX1850 is a high-current controller for Separate Excitation DC motors. The controller is composed of a unidirectional half-bridge capable of up to 500A for the motor's armature, and a 25A bidirectional power bridge for the motor's excitation (field).
The controller accepts commands received from a RC radio, Analog Joystick, wireless modem, or microcomputer to coordinate the armature and field bridge power so that the motor will move in a precisely controlled manner in the forward or reversed direction. The motor may be operated in open or closed loop speed mode. Using low-cost position sensors, it may also be set to operate as a heavy-duty position servos.
The controller's operation can be extensively automated and customized using Basic Language scripts. The controller can be configured, monitored and tuned in realtime using a Roboteq's free PC utility. The controller can also be reprogrammed in the field with the latest features by downloading new operating software from Roboteq.
10V to 50V DC
Number of Channels
1 Field + 1 Excitation
500A field / 25A excitation
400A field / 25A excitation
250A field / 25A excitation
By automatic power output reduction above user preset level, per channel
Yes - Allows regenerative braking
Automated current limit reduction starting at 70 degC (175 degF) heat sink temperature
Output shut off below 9V and above 50V - user adjustable