Siemens 1NB1402-2AA84-4CA0-Z, Operating And Installation Instructions

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8.2 Switching on with the anti-condensation heating active
NOTICE
Excessive machine temperature
If the anti-condensation heating is operated while the machine is running, this can increase
the temperatures inside the machine. This can result in material damage.
● 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.
See also
Interlock circuit for anti-condensation heating (Page 23)
8.3 Switching on the machine
1. If at all possible, run the machine without load and check that it is running smoothly.
2. If it runs perfectly, connect a load.
NOTICE
Thermal overload of motors connected directly to the line supply
In addition to the load torque, the ramp-up (accelerating) time is essentially influenced by
the moment of inertia to be accelerated. While ramping up when connected to the line
supply, the inrush (starting) current is a multiple of the rated current. This can result in
thermal overload. This can damage the motor.
As a consequence, when ramping up, observe the following:
● Monitor the ramp-up time and number of consecutive starts.
● Comply with the limit values and/or ramp-up conditions specified in the catalog or the
order documentation.
3. If this is possible using the available measuring equipment, check the bearing and stator
winding temperatures.
8.4 Regreasing roller bearings
Refer to the regreasing instructions for the roller bearings on the lubricant plate.
Operation
8.2 Switching on with the anti-condensation heating active
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
Operating Instructions 06/2018
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