D.1 Switching on
Table D-1 Items to check during switch-on
Items to check during switch-on O.K. Comment
Machine started without load for a short period "Start motor"
Direction of rotation checked
When running down from mechanical operation, noises and vibrations at the bear‐
ings and bearing shields checked.
Machine started again and run up to maximum permissible speed - smooth running
checked
With machine running satisfactorily, cooling system switched on
Machine monitored for a while in idling operation
With satisfactory idling performance, load connected to machine
Smooth running checked
Values for voltage, current and output logged
As far as possible, the corresponding values for the working machine are logged.
Temperatures of the bearings, windings, etc., monitored and logged until the sys‐
tem reaches a steady state.
Operating time reduced accordingly if the water-to-water cooler (if installed) is not
operated at this "preliminary" dry run stage.
Note:
Date
Name Signature
Checklists
D.1 Switching on
SIMOTICS DC 1GG6
144 Operating Instructions 02/2016
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