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Preparations For Use; Safety-related Aspects To Consider When Configuring The Plant; Observing The Operating Mode; Thermal Motor Protection - Siemens 1LA8 Operating Instructions Manual

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Preparations for use

Good planning and preparation of machine applications are essential in terms of keeping
installation simple and avoiding errors, ensuring safe operation, and allowing access to the
machine for servicing and corrective maintenance.
This chapter outlines what you need to consider when configuring your plant in relation to this
machine and the preparations you need to make before the machine is delivered.
4.1

Safety-related aspects to consider when configuring the plant

A number of residual risks are associated with the machine. These are described in the chapter
titled "Safety information" (Page 15) and in related sections.
Take appropriate safety precautions (covers, barriers, markings, etc.) to ensure the machine
is operated safely within your plant.
4.2

Observing the operating mode

Observe the machine's operating mode. Use a suitable control system to prevent overspeeds,
thus protecting the machine from damage.
4.3

Thermal motor protection

The machine is equipped with PTC thermistors for direct monitoring of the motor temperature
to protect the machine against overheating during operation. Plan a corresponding circuit for
monitoring.
See also
Set values for monitoring the winding temperature (Page 84)
Setpoint values for monitoring the bearing temperature (Page 84)
4.4

Interlock circuit for anti-condensation heating (option)

If the anti-condensation heating is operated while the machine is running, this can increase
the temperatures inside the machine.
● Install an interlock circuit that switches off the anti-condensation heating once the main
● Only switch on the anti-condensation heating after the motor has been switched off.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016
machine is switched on.
Carefully comply with the data on the anti-condensation heating plate.
4
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