Siemens 580 用户手册

- 11 - 

 

Will cause overheating. 

Allow time between starts to permit stator windings and 
rotor cage to cool. 

 

 
After installation is completed, but before motor is put 
in regular service, make an initial start as follows: 
 
1.  Check that motor, starting, and control device 

connections agree with wiring diagrams. 

2.  Check that voltage, phase, and frequency of line 

circuit (power supply) agree with motor nameplate. 

3. 

Check motor service record and tags 
accompanying motor.  Be certain bearings have 
been properly lubricated and oil wells are filled.  
See motor outline drawing to determine proper oil 
level. 

4.  If possible, remove external load (disconnect drive) 

and turn shaft by hand to assure free rotation.  This 
may have been done during installation procedure; 
if so, and conditions have not changed, this check 
may not be necessary. 

5.  If drive is disconnected, run motor at no load long 

enough to be certain that no unusual condition 
exists.  Listen and monitor for excessive noise, 
vibration, clicking or pounding and that oil rings are 
turning if so equipped.  If present, stop motor 
immediately.  Investigate the cause and correct 
before putting motor in service. 

6.  If drive cannot be disconnected, interrupt the 

starting cycle after motor has accelerated to low 
speed.  Carefully observe for unusual conditions as 
motor coasts to a stop.  Repeat several times if 
necessary. Refer to motor’s Starting Duty 
nameplate (if so equipped) or Motor Data Sheet for 
recommended number of starts and cooling period 
between starts. 

7.  When checks are satisfactory, operate at lowest 

load possible and look for any unusual condition.  
Increase load slowly to maximum, checking unit for 
satisfactory operation. 

 

 

For motors with oil circulating systems, proceed as 

follows before startup; 

 
1.  Fill motor reservoirs to normal level (see motor 

outline drawing). 

2.  Follow instructions provided by the oil circulating 

system supplier. 

3.  Put oil circulating system into operation before 

starting motor. 

 

Start the motor in accordance with standard 
instructions for the starting equipment used. 

 

Sometimes the load should be reduced to the 
minimum, particularly for reduced voltage starting, 
and/or high inertia connected loads. 
 

Motors will operate successfully under the following 
conditions of voltage and frequency variation, but not 
necessarily in accordance with the standards 
established for operating under rated conditions: 
 
1. If the variation in voltage does not exceed 

 

 

 

 

 

 

 

10% above or below rated voltage, with all 

 

 

phases balanced.  Voltage unbalance should not 
exceed 1%. 

2.  If the variation in frequency does not exceed 5% 

above or below rated frequency. 

3.  If the sum of the voltage and frequency variations 

does not exceed 10% above or below rated 

 

values provided the frequency variation does not 
exceed 5%. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

If motor has been out of service or in storage for more 
than 30 days, consult Siemens Storage 
Recommendations ANIM-03114, Preparation for 
Service