Siemens 1MB115 Installation And Maintenance Manual page 115

Table 5-2 Set values for monitoring the bearing temperatures
5.2 Start-up
• Start the machine without a load; to do this, close the motor starter
protector and do not switch the machine off prematurely.
• You should limit how often you switch the machine off while it is starting
up and still running at a slow speed, for checking the direction of rotation
or the required dimensions, for example.
• Allow machines to reach a standstill before switching them back on.
5.2.1 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
NOTICE
Avoiding mechanical damage to the cylindrical roller bearing
Under all circumstances maintain the minimum load on cylindrical roller
bearings of 50% corresponding to what is specified in the catalog.
2. If the machine is running smoothly and evenly, switch on the cooling
3. If it runs perfectly, connect a load.
Set value
Alarm
Shutting down
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.
equipment. Continue to observe the machine for a while in no-load
operation.
Temperature
T + 5 K ≤ 115 ºC
operation
T + 10 K ≤ 120 ºC
operation
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