1781, Classic & WRC4 Series Relay Output and Watchdog Discrete I/O Modules

(download this web page as a pdf catalog page)

1781- ROx_/RCx_

1781-WO5_/WC5_

WRC4 ROx_/RCx_

General specifications Operating temperature range –30 to +80°C Isolation 1,000 V rms Capacitance input to output 8 pF Application notes Relay and watchdog modules are rated for resistive loads only.

Relay output and watchdog module specifications by part number

INPUT: WRC4	WRC4-WO5S/WC5Ssee 1 & 2	WRC4-RO5S/RC5S2	WRC4-ROYS/RCYS2	WRC4-ROXS/RCXS2	Units
INPUT: 1781 SLIM	1781-WO5S/WC5Ssee 1 & 2	1781-RO5S/RC5S2	1781-ROYS/RCYS2	1781-ROXS/RCXS2
INPUT: 1781 MINI	1781-WO5M/WC5Msee 1 & 2	1781-RO5M/RC5M2	1781-ROYM/RCYM2	1781-ROXM/RCXM2
INPUT: CLASSIC		OAC5R(5)	OAC15R(5)	OAC24R(5)
Nominal input voltage	5	5	15	24	V dc
Min. input volt. @ pin 3 - WRC4	4.5	4.5	10.5	19.5	V dc
Min. input volt. @ pin 3 - 1781/Classic	3	3	9	18	V dc
Max. input volt. @ pin 3 - WRC4	5.5	5.5	20	30.5	V dc
Max. input volt. @ pin 3 - 1781/Classic	5.5	5.5	20	30.5	V dc
Must turn off voltage	-	1	2	3	V dc
Typical input current	0 (4A transient)	1.3	3	2.2	mA dc
Maximum input current	0 (5A transient)	2.2	4	2.5	mA dc
Nominal input resistance	2.2K (series 0.1 uF)	2K	4.7K	10K	ohm
Typical V+ supply current	50	50	24	15	mA dc
OUTPUT
Nominal line voltage	5	5	5	5	V dc/ V rms
Maximum line voltage	100/125	100/125	100/125	100/125	V dc/ V rms
Minimum line voltage	0	0	0	0	V dc/ V rms
Max peak off-state voltage	100/125	100/125	100/125	100/125	V dc/ V rms
Max. off-state leakage cur.	0	0	0	0	mA dc
Maximum on-state current	1A, 30 Wdc, 62.5 VA	1A, 30 Wdc, 62.5 VA	1A, 30 Wdc, 62.5 VA	1A, 30 Wdc, 62.5 VA	Resistive Load
Minimum on-state current	0	0	0	0	mA
Maximum 1 second surge	2.5	2.5	2.5	2.5	A peak
Peak on-state voltage	0.25	0.25	0.25	0.25	V dc
Maximum turn-on time	2	2	2	2	ms
Maximum turn-on time	1	1	1	1	ms
Fuse rating (WRC4 only)	4A	4A	4A	4A	fast-acting

 

1	Timer Values:	xxx = value in millisecs.	xxs = value in seconds
		40, 80, 125, 250, 500 ms	4, 8, 16, 32 sec.
	Examples:	1781-WO5S-500 has N.O. contacts & 500 ms watchdog
		1781-WC5S-4S has N.C. contacts & 4 sec. watchdog
2	1781-RO5S/ROXS & 1781-WO5S contacts normally open (N/O)
	1781-RC5S/RCXS & 1781-WC5S contacts normally closed (N/C)