52 Electrical installation: AC input, motor and brake
Motor connections
MicroFlex e150 will operate with a large number of brushless servo motors. For
information on selecting servo motors please contact your local ABB representative.
The motor must be capable of being powered by an inverter PWM output. The motor
can be connected directly to the MicroFlex e150 or through a motor contactor (M-
Contactor). Motors should ideally have a minimum inductance of 1 mH per winding;
for motors with lower inductance an output reactor can be fitted in series with the
motor.
The motor outputs are fully short circuit proof according to EN 61800-5-1. The drive
trips on a motor phase short circuit and will not restart unless AC power is removed.
See page 35.
When using a motor in the Mint WorkBench catalog, the parameters for managing
motor overloads are configured automatically by the Commissioning Wizard (page
100). If they need to be changed, or you are using an alternative motor, use the
Parameters tool (page 112).
WARNING! Hazardous voltages can exist on the motor output connections. Do
not touch the motor output connections before you first ensure there is no high
voltage present.
WARNING! The motor cables U, V and W must be connected to their
corresponding U, V or W terminal on the motor. Misconnection will result in
uncontrolled motor movement.
WARNING! Do not connect supply power to the MicroFlex e150 UVW outputs.
The MicroFlex e150 might be damaged.
For CE compliance, the motor earth/ground should be connected to the drive
earth/ground, and the motor power cable must be shielded; see Motor power cable
shielding on page 53. The connector or gland used at the motor must provide 360
degree shielding. The maximum recommended cable length is 30.5 m (100 ft). See
Recommended fuses, circuit breakers and wire sizes on page 136 for recommended
wire sizes.
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