Lenze 931W - Manual (Page 37)

Commissioning
Before switching on
Voltage supply connection
6
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37 GHB 13.0002-EN 3.1
6 Commissioning
6.1 Before switching on

Stop!
Avoid injury to persons and damage to material assets during commissioning!
ƒ Necessarily observe the switch-on sequence.
ƒ During the resolver adjustment, the drive has to be able to rotate freely
without load!

Tip!
For faults during commissioning, see chapter Troubleshooting and fault
elimination. ( 45)
Checking of electrical connections
Before the first commissioning, before commissioning after longer downtimes, check:
ƒ the electrical connection with regard to completeness, short circuit and earth fault.
ƒ All plugs on the controller must be securely connected using the screw and plug
connections provided.
ƒ
The screw connections on the motor must be securely connected.
ƒ
Carefully check the connections to the supply system and ensure that the
current-carrying connections are correct.
ƒ 24 V and 42 V controllers require correspondingly high currents to reach their
maximum performance.
6.1.1 Voltage supply connection
ƒ Ensure correct pole connections (extra-low voltage or mains voltage) for feeding the
voltage supply (extra-low voltage)!
ƒ
Ensure that auxiliary supply (24 V for control) and supply voltage (24 V or 42 V
DC-bus supply) are separately connected. When the supply is mixed up, the servo
inverter may be destroyed.
6.1.2 Motor connection
ƒ For trouble-free operation, we recommend to use Lenze standard cables.
ƒ Ensure a proper shielding of the motor and feedback cable to avoid interferences.