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TH, two-hand button
493
02/16 MN05013001Z EN
Figure 256:
2 two hand button example: Signal diagram
a
Two-hand button not pressed, followed by operation of both N/
O–N/C combinations within t < 500 ms.
b
No error: TH01QS closes.
c
Releasing of the two-hand button. TH01QS opens. Subsequent
renewed actuation of both N/O–N/C combinations at an imper-
missible time interval (> 500 ms).
d
Error: TH01ER closes.
e
Error acknowledgement: TH01I1 and TH01I3 drop out and
pickup of TH01I2 and TH01I4.
TH01I1
TH01I2
TH01QS
TH01ER
TH01I3
TH01I4
t < 500 ms
t > 500 ms
a
b
c
d
e
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