Table of Contents
Advertisement
● Observe the motor for a while during no-load operation.
● If it runs perfectly, connect a load.
See also
Switching on (Page 138)
7.6
Overspeed
Overspeed
When the exciter circuit is deactivated, the machine can enter operating conditions that
destroy the machine. Death, serious injury, or material damage will result.
● Interlock the control in such a way that the armature circuit can be connected only when
● If the exciter circuit fails, switch off the armature circuit immediately.
See also
Safety notes (Page 15)
7.7
Switch off
Switch-off is usually initiated and controlled by an automatic control. If the machine is not
switched off by a control, proceed as follows:
1. Switch the machine off.
2. Switch off any external fans.
SIMOTICS DC 1GH6
Operating Instructions 02/2016
NOTICE
Overheating during test runs without water cooling
The motor can overheat without water cooling. Reduce the ON duration accordingly if the
water cooler is not to be operated during a test run.
– Check whether it is running smoothly.
– Record the voltage, current, and power values.
– As far as possible, record the corresponding values of the driven machine.
– Monitor and record the temperatures of the bearings, windings, and so on until the
system reaches a steady state.
DANGER
the exciter circuit is energized.
Commissioning
7.7 Switch off
65
Advertisement
Table of Contents
