Siemens 1PQ8, Operating Instructions & Installation Instructions

Page: 77 / 140

See also
Regreasing intervals and types of grease for operating roller bearings (Page 97)
Stoppages (Page 83)
Transport and storage (Page 29)
7.5 Setpoint values for monitoring the bearing temperature
Prior to commissioning
If the machine is equipped with bearing thermometers, set the temperature value for
disconnection on the monitoring equipment before the first machine run.
Table 7-1 Set values for monitoring the bearing temperatures before commissioning
Set value Temperature
Disconnecting during commissioning 120 °C
Normal operation
Measure the normal operating temperature of the bearings T
op
at the installation site in °C. Set
the values for shutdown and warning according to the operating temperature T
op
.
Table 7-2 Set values for monitoring the bearing temperatures in normal operation
Set value Temperature
Warning in normal operation T
op
+ 5 K ≤ 115 °C
Disconnection in normal operation T
op
+ 10 K ≤ 120 °C
See also
Thermal motor protection (Page 26)
7.6 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 values for monitoring the winding temperatures during commissioning
Set value Temperature
Shutdown 145 °C
Start-up
7.5 Setpoint values for monitoring the bearing temperature
SIMOTICS TN Series N-compact 1LH8
Operating Instructions 06/2017
77