Siemens TV Converter Box 611 User Manual

Maintenance and repairs

11.4 Test and replacement intervals of the cooling medium

1FW6 Built-in torque motors

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Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7

Due to their principle of operation, torque motors are free of wear. To ensure that the motor

functions properly and remains free of wear, the following maintenance work needs to be

carried out:
●  Regularly check that the rotary axes can move without hindrance.
●  Keep the air gap free of chippings and particles.
●  Regularly check the condition of the motor components.
●  Check the current consumption in the test cycle defined beforehand.

Ensure that the motor compartment remains free of contamination (e.g. chippings, oil, etc.).

Depending on the local level of contamination, clean the machine to ensure that it functions

properly and that heat loss is properly dissipated.
Check the cables to ensure that they are not damaged and are free of wear and tear. Do not

use electrical devices with damaged cables.
Make sure that the cable glands are secure.

Intervals between maintenance

Since operating conditions differ greatly, it is not possible to specify intervals between

maintenance work.

Indications that maintenance work is required

●  Dirt in the motor cabinet
●  Distinctive changes in the behavior of the machine
●  Unusual sounds emitted by the machine
●  Problems with positioning accuracy
●  Higher current consumption

11.4

Test and replacement intervals of the cooling medium

The test and replacement intervals for the cooling medium should be agreed with the

manufacturers of the anti-corrosion agent and the cooling system.