Commissioning
7.2 Setpoint values for monitoring the bearing temperature
1MB..1/2/3/4 - shaft heights 63 ... 355
Operating Instructions, 06/2020, A5E44455710A
93
7.1.4
Further documents
Note
Further documents
Observe all of the other documents provided with this machine.
7.2
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
7.3
Switching on
Measures for start-up
After installation or inspections, the following measures are recommended for normal start-
up of the machines:
●
Start the machine without a load. To do this, close the circuit breaker and do not switch
the machine off prematurely. Switching the machine off again while it is starting up and