Schneider Electric SR2MAN01 user manual I1 I2, I4 I5 I6 I7, Outputs, Application, Operation

Implementing a Basic Application

Module Wiring Below, an illustration of smart relay wiring:

Mon		Fuse 1
100 ... 240 VAC
50 / 60 Hz			S1	S2
	N

M N	I1 I2 I3	I4 I5 I6 I7 I8
100 ... 240 VDC	Inputs I1...	I8 xx VDC

SRxxxxBD

Fuse 2

MENU / OK

Outputs

Q1 ... Q4: Relay 8A

1	2	1	2	1	2	1	2
Q1		Q2			Q3		Q4
		L1

Application	Using a smart relay means that ordinary switches (with open or closed positions)
Operation	can be used in place of two position switches.

The switches are identified as S1 and S2 in the wiring diagram above.

S1 and S2 are connected to inputs I1 and I2 on the smart relay.

The operating principle is as follows: Each time the status of inputs I1 and I2 changes, the status of output Q1 also changes which controls the lamp L1.

The ladder diagram uses basic functions, for example placing contacts in parallel and in series, as well as the reverse function identified as i1 and i2 (see Using the Reverse Function, p. 152).

Note: The implementation of a two-way switch is optimum when impulse relay coils are used (see Discrete (DISCR) Outputs, p. 98).

SR2MAN01 11/2007 151