Datasheet

Single Channel Wiring
SBL23xx Motor Controller Datasheet 5
Precautions and Optional Connections
Note 1: Backup battery to ensure motor operation with weak or discharged batteries, connect a second battery
to the Power Control wire/terminal via the SW1 switch.
Note 2: Use precharge 1K, 0.5W Resistor to prevent switch arcing.
Note 3: Insert a high-current diode to ensure a return path to the battery during regeneration in case the fuse
is blown.
Note 4: Optionally ground the Vmot inputs when the controller is Off if there is any concern that the motors
could be made to spin and generate voltage in excess of 60V.
Note 5: Connect the controller’s bottom plate to a wire connected to the Earth while the charger is plugged in
the AC main, or if the controller is powered by an AC power supply.
Note 6: Beware not to create a path from the ground pins on the I/O connector and the battery minus terminal.
Single Channel Wiring
On the Single Channel SBL23XXS, the each of the motor wire must be connected to both output terminals of
the same letter as shown in the figure below. Use the Encoders and/or Hall sensors of Channel 1 for operation.
FIGURE 3. Single Channel wiring diagram
Important Warning
This wiring must be done only on the single channel version of the controller. Paralleling the wires on
a dual channel product will cause permanent damage. Verify that your controller is an SBL2360S before
you wire in this manner.
Use of Safety Contactor for Critical Applications
An external safety contactor must be used in any application where damage to property or injury to person can
occur because of uncontrolled motor operation resulting from failure in the controller’s power output stage.