4.10.10
Commissioning after storage
4.10.10.1 Insulation resistance and polarization index
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
● Before starting up a machine for the first time
● After an extended period in storage or downtime
● Within the scope of maintenance work
The following information is provided regarding the state of the winding insulation:
● Is the winding head insulation conductively contaminated?
● Has the winding insulation absorbed moisture?
As such, you can determine whether the machine needs commissioning or any necessary
measures such as cleaning and/or drying the winding:
● Can the machine be put into operation?
● Must the windings be cleaned or dried?
Detailed information on testing and the limit values can be found here:
"Testing the insulation resistance and polarization index" (Page 70)
4.10.10.2 Lubricating the roller bearings
If you correctly store the machine for a longer period of time, it can be assumed that within a
period of two years, the grease in the bearings will not deteriorate.
● For motors with thermal class 155, for normal ambient temperatures, use a lithium-soap
roller bearing grease with a melting point of at least 180° C.
● For machines with thermal class 180, and for certain special machines, use the special
grease specified on the machine lubricant plate.
4.10.10.3 Regreasing roller bearings after storage periods of up to 2 years
● For machines with regreasing systems, briefly lubricate both bearings after commissioning
with the motor running as a precautionary measure.
● Grease type, grease quantity and relubrication intervals for the regreasing system are
stamped on a supplementary plate attached to the machine.
Preparations for use
4.10 Transport and storage
LOHER CHEMSTAR 1PS5
Operating Instructions 03/2014
35
Содержание SIMATIC S5 1P 243
Страница 2: ...11 03 2014 02 49 V4 00 ...
Страница 12: ...Introduction LOHER CHEMSTAR 1PS5 12 Operating Instructions 03 2014 ...
Страница 20: ...Safety notes 2 11 Ventilation LOHER CHEMSTAR 1PS5 20 Operating Instructions 03 2014 ...
Страница 42: ...Preparations for use 4 11 Converter operation LOHER CHEMSTAR 1PS5 42 Operating Instructions 03 2014 ...
Страница 66: ...Electrical connection 6 2 Connecting LOHER CHEMSTAR 1PS5 66 Operating Instructions 03 2014 ...
Страница 124: ...Disposal 11 4 Disposal of components LOHER CHEMSTAR 1PS5 124 Operating Instructions 03 2014 ...
Страница 126: ...Service and Support A 1 Siemens Service Center LOHER CHEMSTAR 1PS5 126 Operating Instructions 03 2014 ...
Страница 136: ...Quality documents C 4 Data LOHER CHEMSTAR 1PS5 136 Operating Instructions 03 2014 ...
Страница 140: ...Index LOHER CHEMSTAR 1PS5 140 Operating Instructions 03 2014 ...
Страница 141: ...AC EC Declaration of Conformity U161 AB EC Declaration of Conformity U163 AA R No 20000h U165 ...