Wiring with the logic relay
146
1SVC 440 795 M0100
Example: Maintenance meter for different machine
sections, with text output
The entire machine operating time is to be counted. Machine
sections have to be maintained after different times have
elapsed. Markers N1 and N2 are the On markers of two
different machine areas. These markers control the
associated operating hours counters. Output Q4 switches on
a warning light if the setpoint of an operating hours counter
has been reached. This should flash. A keyswitch at input I8
resets the associated operating hours counter after
maintenance has been completed.
The entire machine operation time is to be displayed
continuously. The run time of the machine sections should
only be displayed once the maintenance interval has
elapsed.
Circuit diagram display Parameter settings of
operating hours counter O1
Parameter settings of
operating hours counter O2
Parameter settings of
operating hours counter O3
---------ÄO1
O1-------ÄD4
N1-------ÄO2
N2-------ÄO3
O2u------TT4
O3k
T4-------ÄQ4
O2uI8----RO2
h------ÄD2
O3uI8----RO3
h------ÄD3
O1 +
S 000000
O2 +
S 000500
O3 +
S 000800
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