Sharp JW-20CM, JW-20RS (4)Voltage interruption time of slave module

(4)Voltage interruption time of slave module

The voltage interruption operation of slave module is carried out for service interruption signal (PF signal) of power supply module, watchdog timer of slave module, and check 5 V power regardless of setting voltage interruption time (#246) of master module.

	Start
	PF signal OFF				No
	Communicating			Yes
	at remote I/O
			No
	I/O processing of I/O module
Yes	Output		hold RST
	switch
			No
Yes	Watchdog timer
	time-up
			No
	5V power 4.5V max.				No
		Yes
	Halt output “open”
	All output module “OFF”

·The PF signal of the power supply module goes “OFF” below 85% of the rated voltage.

·The watchdog timer of the slave module goes time-up in “320 ms.”

·When output hold switch is “RST,” the all halt output and output module become “OFF” when communication with master station have interruption of 320 ms.

End

·When the check of 5 V power is gone below 4.5 V, all are forced to reset. The power supply characteristics varies according to the consumption current of the power supply module as following diagrams.

	120
		Output hold time
	100		5.1V,7A load
[ms]			(ZW-1PU)
			5.1V,5A load
Hold time
	80		(ZW-2PU)
	60
	40
	20
	0

85V/170V	100V/200V	120V/240V	132V/264V
	AC input voltage
20V	24V	28V	32V

DC input voltage

Hold time [ms]

			Output hold time					8
280				100 VAC 50H input
				(ZW-1PU)
240				24 VDC input
				(ZW-2PU)
200
160
120
80
40
0	1	2	3	4	5	6	7
						Load current [A]

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