Siemens SIMOTICS GP series - Setpoint Values for Monitoring the Bearing Temperature; Switching on; Measures Required for Commissioning and Test Operation

Commissioning
7.2 Switching on
Standard motors SH 63 ... 355
82 Operating Instructions, 12/2018, A5E38483075A
7.1.8 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- 2 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- 3 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
7.2 Switching on
7.2.1 Measures required for commissioning and test operation
After installation or inspection, carry out a test run:
1. Start up the machine without a load. To do this, close the circuit breaker 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.
2. If the machine is running smoothly and evenly, switch on the cooling equipment. Continue
to observe the machine for a while in no-load operation.