Siemens SIMOTICS FD 1MQ1, Operating And Installation Instructions

Page: 98 / 182

7.7 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
Alarm 115 °C
Shutting down 120 °C
Normal operation
Determine the maximum operating temperature of the bearings T
operation
taking into account the
temperature, bearing load and influences of the plant on the motor in °C. Set the values for
shutdown and warning corresponding to the operating temperature T
op
.
Table 7-2 Set values for monitoring the bearing temperatures
Set value Temperature
Alarm T
operation
+ 5 K ≤ 115 °C
Shutting down T
operation
+ 10 K ≤ 120 °C
7.8 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 145° C
Shutting down 155° C
Normal operation
1. Measure the normal operating temperature T
op
at the installation location in ° C.
2. Set the values for shutdown and warning corresponding to the operating temperature T
op
.
Start-up
7.7 Setpoint values for monitoring the bearing temperature
SIMOTICS FD 1MQ1
98
Operating Instructions 01/2019