Greenlee 5123 Instruction Manual page 9

Operation—5123 Motor Rotation Indicator
Identifying Motor Wires
Before connecting a three-phase motor to a circuit, use the 5123 Motor
Rotation Indicator to identify the wires for correct motor rotation.
Do not connect the 5123 unit to live voltage.
Failure to observe this precaution can result in injury and can
damage the unit.
Notes:
• This procedure assumes that the motor was "bumped," or run for a
short period of time, by the motor manufacturer prior to shipment.
A bumped motor will retain residual magnetism, which is the basis
for the Motor Rotation Indicator to correctly identify the legs of the
motor. A motor that has not been bumped will not have any residual
magnetism and the Motor Rotation Indicator will not work.
• Clockwise is the reference direction — regardless of the required
direction of motor rotation, the user must spin the motor shaft
clockwise to correctly identify the motor wires.
1. Attach the red, white and blue leads of the 5123 to the three motor
wires.
5702 • 5123
9