Honeywell DCP552 Mark II user manual Read timing, SW1 to 8 and 15 to 16 timing

Chapter 6. OPERATION

■Read timing

● SW1 to 8 and 15 to 16 timing

￿￿￿￿￿SW1￿￿￿￿￿￿￿to 8￿￿￿￿￿and 15 to 16￿￿are￿￿￿￿￿￿￿read according to the timing in the figure shown below.

(1) When the input changes from OFF to￿￿￿ON,￿￿￿￿￿￿￿reading starts within less than 0.2 seconds. ￿￿￿

(2) When the input changes from ON￿￿￿to OFF, reading starts within less than 0.2 seconds.

● SW9 to 14 and RUN, FAST (READY FAST) timing

Selecting SW9 to 14 program numbers takes less than 0.4 seconds after a change in input status.

Thus the following timings (1) to r must be observed during RUN operations.

FAST (READY FAST) operations should follow the same timings.
(1)	Time from number selection to leading edge of the RUN signal
								: 0.4 seconds or more
(2)	Time from the leading edge of the RUN signal to number selection hold
								: 0.2 seconds or more
(3)	Time from RUN signal OFF to leading edge of RUN signal
								: 0.2 seconds or more
(4)	Time from leading edge of RUN signal to RUN signal ON hold
￿￿￿￿ ￿￿￿￿		￿￿￿	￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿				:		0.4 seconds￿￿￿		or less
		￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿				￿￿￿￿￿￿￿￿		￿￿￿￿￿￿￿￿￿￿￿￿￿				￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
								: 0.2 seconds or more
(5)	Time from entry of selected number to program number change
								: 0.4 seconds or less
(6)	Time from leading edge of RUN signal to start of RUN signal
￿￿￿￿￿￿￿￿￿￿￿￿￿							￿	￿￿￿￿￿￿
		￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿	￿￿￿		￿￿￿￿￿￿￿￿
	%￿￿￿	￿!"#$						￿￿￿

Handling Precautions

To ensure correct operation, the above read timings should be regarded as minimum time settings in external switch operations.

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