6 | Commissioning
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NOTICE
Incorrect connection.
Risk of damage to the motor!
• The wiring diagrams given below are typical. Check the inside of the terminal box
for motor connection instructions/diagrams.
5.4.1 Wiring Diagram Three-Phase Motor
NOTICE
Incorrect direction of rotation.
Risk of damage to the machine!
• Operation in the wrong direction of rotation can destroy the machine in a short time!
Prior to start-up, ensure that the machine is operated in the right direction.
• Determine the intended direction of rotation with the arrow (stuck on or cast).
• Jog the motor briefly.
If the rotation of the motor must be changed:
• Switch any two of the motor phase wires.
Delta connection (low voltage):
Star connection (high voltage):
Double star connection, multi-voltage
motor with 9 pins (low voltage):
Star connection, multi-voltage motor
with 9 pins (high voltage):
6
Commissioning
NOTICE
Lubricating a dry running machine (compression chamber).
Risk of damage to the machine!
• Do not lubricate the compression chamber of the machine with oil or grease.
