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7
Smart Relay 4 Installation and Operation Manual
INSTALLATION
Logic Programming:
! NOTE:
Each section can be independently programmed. Sections may be com-
bined to form custom logic/timing functions.
To program the logic functions for each section, follow the step below:
1. Remove power.
2. Remove the cover.
3. Determine which section you need to program:
4. SW 3 = K1, SW4 = K2, SW5 = K3, SW6 = K4.
5. Select the desired mode and set the dipswitches accordingly.
6. When finished, reinstall the cover and repower the SR-4.
DIP Switch Mode Settings – Dipswitches 1 through 4 are weighted 8421 (standard
binary format). Example: Dipswitch 1 has a weight of 8, while Dipswitch 4 has a
weight of 1.
Mode DIPswitch
Description
0
0000
Relay closes when the odd input is active and opens when the
odd input is inactive.
1
0001
Relay toggles on leading edge of the odd input.
2
0010
The relay closes on the leading edge of the odd input. Relay
remains closed until the leading edge of the even input is
active.
3
0011
The relay closes after the odd input has been active for the
programmed time period. It opens after the even input is
closed for the time period.
4
0100
The relay closed on the leading edge of the odd input. The
relay opens after the trailing edge is closed for the time period.
5
0101
Relay closes on leading edge of the odd input for time period.
6
0110
Relay closes for the time period on the trailing edge of the
odd input.
7
0111
Relay closes for the time period on the leading or trailing
edge of the odd input.
8
1000
Relay closes on leading edge of the odd input and remains
closed for at least the time period. If the odd input stays
active for longer than the time period, the relay will open on
the trailing edge of the odd input.
9
1001
Relay closes on the leading edge of the odd input for no
longer than the time period. If a trailing edge is encountered
before the time has expired, the relay will open with the edge.
Otherwise, the relay opens when the time period expires.
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