Connecting The Fan - Siemens 1PH728 Operating Instructions Manual

Installation / Assembly

3.7 Connecting the fan

The ground conductor must also be connected to the end shield of the motor.
Figure 3-4
When making connections, ensure that
• the contact surface is clean and bright, and is protected with a suitable anti-corrosion
agent, e. g. acid-free Vaseline.
• the flat and spring washers are located under the bolt head.
• the minimum necessary screw-in depth and the tightening torque for the clamping bolts
must be maintained.
Mandatory tightening torques:
Bolt
M8x30
[ID: 336]
3.7 Connecting the fan
Instructions relevant to safety
Please observe the following safety instructions relating to connecting a fan:
Caution
Provide a protective circuit that prevents the main motor from being switched on when the
fan unit is not in operation.
3-10
Detailed view: Connecting points for ground conductor (1 + 2)
Screw-in depth
> 8 mm
Tightening torque
20 Nm
Siemens AG A5E00177602A
Operating Instructions V 2.0 1PH728