Drive Fault - Motor Drive Failure (D-Series)
Possible causes:
• Intermittent or loose connection between motor and controller
• The H-bridge on the controller is damaged, possibly a blown FET
• The electric motor is faulty or has been disconnected
Solutions:
• Check drive connections
• Check that the MOTOR, FUSE and DRIVE cells are all ticked in the information screen. An ‘x’, question mark or anything other than a tick indicate a fault. In the case of a damaged H-bridge, the display will typically indicate the part of the bridge that is damaged (i.e. Q1Q3, Q2Q4, etc.). For an explanation of the information screens found on the D-Series range of controllers
• Ensure that the electric motor terminals are connected to the controller
• Check the function of the electric motor by referring to the information screen described earlier, or test the motor by connecting the motor terminals straight onto the battery. If the motor does not run, the commutator is most probably faulty
• In the event of a Drive Fault, the controller must be repaired by an authorised workshop
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