Bridging Insulated Bearings; Switching On With The Anti-Condensation Heating Active - Siemens SIMOTICS XP 1MB155 Operating Instructions Manual

Low-voltage motors
Table of Contents

Advertisement

Operation
8.1 Safety instructions for operation
8.1.4

Bridging insulated bearings

Explosion hazard if the bridging is removed from the insulated bearing
Removing the factory-fitted bridging of the insulated bearing leads to potential differences
between the rotor and the grounded motor. This can cause the generation of sparks, which
especially in an explosive atmosphere can ignite surrounding dust or combustible gases.
Explosions can occur. There is also a risk of an electric shock. Death, serious injury, or
material damage will result.
Do not open the bridging of the bearing insulation during operation.
8.1.5

Switching on with the anti-condensation heating active

Excessively high machine temperature when heating is switched on
If the anti-condensation heating is operated while the machine is running, this can increase
the temperatures inside the machine. Material damage can result.
● Make sure that the anti-condensation heating is switched off before the machine is
switched on.
● Only operate anti-condensation heating when the machine is switched off.
Explosion hazard
If the anti-condensation heating is switched on during operation, the temperature class or
the maximum surface temperature of the machine can be exceeded.
In an explosive atmosphere, there is a risk of an explosion. This can result in death, serious
injury or material damage.
Only switch the anti-condensation heating on after the motor has been switched off.
98
DANGER
WARNING
Operating Instructions, 03/2018, A5E41926185A
1MB155 / 1MB555

Advertisement

Table of Contents
loading

This manual is also suitable for:

Simotics xp 1mb555

Table of Contents