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10
Smart Relay 4 Installation and Operation Manual
INSTALLATION
The K3 section is accessed on TB3. Follow the list below for connection informa-
tion. The JP(#) number in parentheses is the opto-isolator configuration header:
1 - Input 5A (JP5)
2 - Input 5B (JP5)
3 - Input 6A (JP6)
4 - Input 6B (JP6)
5 - Ground
6 - Slave K3 relay input (pull to ground to activate K3)
7 - K3A Normally Closed
8 - K3A Common (wiper)
9 - K3A Normally Open
10 - K3B Normally Closed
11 - K3B Common (wiper)
12 - K3B Normally Open
The K4 section is accessed on TB4. Follow the list below for connection informa-
tion. The JP(#) number in parentheses is the opto-isolator configuration header:
1 - Input 7A (JP7)
2 - Input 7B (JP7)
3 - Input 8A (JP8)
4 - Input 8B (JP8)
5 - Ground
6 - Slave K4 relay input (pull to ground to activate K4)
7 - K4A Normally Closed
8 - K4A Common (wiper)
9 - K4A Normally Open
10 - K4B Normally Closed
11 - K4B Common (wiper)
12 - K4B Normally Open
Input jumper set-up:
Each input is equipped with a four-position header. The header is labeled JPx and
is numbered 1 through 8. The factory default is for a DRY input (switch, contact,
open collector) with a jumper between 1 & 2 and another jumper over 3 & 4. To
change the input to WET (user supplied voltage between 5 and 24vdc), remove both
jumpers and place ONE jumper over pins 2 & 3.
! NOTE:
Refer to the schematic diagram for the proper polarity when attaching
equipment to the inputs.
