Kelly KDHE High Efficient Series/PM Motor Controller User’s Manual
V 3.4
5
Chapter 3 Wiring and Installation
3.1 Mounting the Controller
The controller can be oriented in any position which should be as clean and dry as possible,
and if necessary, shielded with a cover to protect it from water and contaminants.
To ensure full rated output power, the controller should be fastened to a clean, flat metal
surface with four or six screws. Applying silicon grease or some other thermal conductive
material to contact surface will enhance thermal performance.
Proper heat sinking and airflow are vital to achieve the full power capability of the
controller.
The case outline and mounting holes’ dimensions are shown in Figure 1 and 2.
Caution:
• RUNAWAYS
—
Some conditions could cause the vehicle to run out of control.
Disconnect the motor, or jack up the vehicle, and get the drive wheels off the
ground before attempting any work on the motor control circuitry.
• HIGH CURRENT ARCS
—
Electric vehicle batteries can supply very high power, and
arcs can occur if they are short circuit. Always turn off the battery circuit before
working on the motor control circuit. Wear safety glasses, and use properly
insulated tools to prevent short.
