Danfoss BOCK HA44e Operating Manual page 20

7| Electrical connection
The motor is wired for direct start (YY) at the factory. For part winding start Y / YY, the bridges must
be removed and the motor feed line connected according to the circuit diagram:
ATTENTION Failure to do this results in opposed rotary fields and results in
D
GB
F
E
20 | AQ452839384735en-000301
400 V
Part winding start Y/YY
Direct start YY
Direktstart YY Teilwicklungsstart Y/YY
2U1 2V1 2W1
1U1 1V1 1W1
L1 L2 L3
damage to the motor. After the motor starts up via partial winding
1, partial winding 2 must be switched on after a maximum delay
of one second . Failure to comply can adversely affect the service
life of the motor.
L1 L2 L3
2U1 2V1 2W1
1U1 1V1 1W1
L1 L2 L3
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