Siemens MICROMASTER 420 Operating Instructions Manual page 85

Issue 07/04
WARNING
For series commissioning, all of the communication interfaces as well as also
the digital and analog interfaces are re-initialized. This results in a brief
communications failure or causes the digital output to switch.
Potentially hazardous loads must be carefully secured before starting a series
commissioning.
Potentially hazardous loads can be secured as follows before starting series
commissioning:
Lower the load to the floor, or
Clamp the load using the motor holding brake
(Caution: During series commissioning, MICROMASTER must be prevented
from controlling the motor holding brake).
If the motor holding brake (refer to Section 3.13) is controlled by the
MICROMASTER, then series commissioning may not be carried-out for
potentially hazardous loads (e.g. suspended loads for crane applications).
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0
3 Functions
85