Omega Engineering CN8260 Option -AL1, -AL2 Relay, N.O. Alarm Output, Load Type Voltage Limit

CN8240 & CN8260 Series Communications & Options

Relay, N.O.

Alarm Output

Option -AL1, -AL2: Relay, N.O. Alarm Output

Supply voltage*

Supply voltage*

	+	N.O.	2	12
	–	C	3	13
	OUTPUT 2
	+	N.O.	4	14
Load	5 amp fuse	N.O.	5	15
	ALARM 1
		C	6	16
Load	5 amp fuse	N.O.	7	17
	ALARM 2
		C	8	18
	120-250 V	L1	9 21	2219
	50-60 Hz	L2	1	2
			0	0

Option Description: NO (Normally open) relay contact is closed when either alarm is active. The relay life is greater than 100,000 operations at 5 operations per second switching full load.

*Connect load and supply voltage per the following table:

Load Type	5 A Voltage Limit
Resistive dc	30 Vdc
Inductive ac (L/R = 7 ms)	20 Vdc
Resistive ac	250 Vac
Inductive ac (pF = 0.4)	150 Vac
Motor, ac, 1/6 hp	250 Vac
Tungsten Lamp, 360 W	120 Vac

RS-232

Communications

Option -C2: RS-232 (one-to-one) Communications

RCV	XMT	SIG GND	RS	232
				485
B(-)	A(+)	SIG GND	RS
RCV	XMT	SIG GND

1		1
		1
2	23	24 12
3		13

Option Description: Provides a one-to-one connection between the controller and an RS-232 port. Computers, PLCs, or dumb terminals may be used to set and access controller data.

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