Siemens SIMOTICS FD 1LH1, Operating Instructions & Installation Instructions

Page: 102 / 174

7.7 Set values for monitoring the winding temperature
Prior to commissioning
Before running the machine for the first time, set the temperature value for shutdown on the
monitoring device.
Table 7-3 Set value for commissioning
Set value Temperature
Alarm 170° C
Shutting down 180° C
Normal operation
1. Measure the normal operating temperature T
op
of the winding at the installation location in
° C.
2. Set the values for shutdown and warning corresponding to the operating temperature T
op
.
Table 7-4 Set values during normal operation
Set value Temperature for insulation class 180(H)
Alarm T
op
+ 10 K ≤ 170° C
Shutting down T
op
+ 15 K ≤ 180° C
7.8 Test run
After installation or inspection, carry out a test run:
1. Start up the machine without a load. To do this, close the circuit breaker and do not switch
off prematurely. Check whether it is running smoothly.
Switching the machine off again while it is starting up and still running at slow speed should
be kept to a bare minimum, for example for checking the direction of rotation or for checking
in general.
Allow the machine to run down before switching it on again.
2. If the machine is running smoothly and evenly, switch on the cooling equipment. Continue
to observe the machine for a while in no-load operation.
Start-up
7.7 Set values for monitoring the winding temperature
SIMOTICS FD 1LH1
102
Operating Instructions 01/2019