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Setpoint Values For Monitoring The Bearing Temperature - Siemens 1LA8 Operating Instructions Manual

Simotics tn series n-compact induction motor.
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7.5 Set values for monitoring the winding temperature
7.4

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 value
Disconnecting during commissioning
Normal operation
Measure the normal operating temperature T
disconnection and warning according to operating temperature T
Table 7-2
Set value
Warning in normal operation
Disconnection in normal operation
7.5
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
Shutdown
Normal operation
Measure the normal operating temperature T
for shutdown and warning according to the operating temperature T
Table 7-4
Set value
Warning
Shutdown
86
Set values for monitoring the bearing temperatures before commissioning
Set values for monitoring the bearing temperatures in normal operation
Set values for monitoring the winding temperatures during commissioning
Set values for monitoring the winding temperatures in normal operation
Temperature
120 °C
at the installation site in °C. Set the values for
op
.
op
Temperature
T
op
T
op
Temperature
145 °C
at the installation site in °C. Set the values
operation
Insulation class 155(F)
T
+ 10 K ≤ 145 °C
op
T
+ 15 K ≤ 155 °C
op
SIMOTICS TN Series N-compact 1LA8
+ 5 K
+ 10 K
.
operation
Operating Instructions 05/2014

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