Accessory Connections - Kohler APM402 Operation

6.2 Accessory Connections

The controller contains a circuit board equipped with terminal strip(s) for use in connecting external optional accessories
including alarms, battery chargers, and remote switches. The optional I/O board provides an additional two analog or digital
inputs and five digital outputs.
For specific information on accessory connections, refer to the accessory wiring diagrams in the wiring diagram manual and the
instruction sheet accompanying the kit. See Figure 87, Figure 88, and Figure 90 for controller circuit board connections.
P23 8-pin connector (RJ45)
P21 6-pin connector
Figure 87 Controller Circuit Board Connections
TB1 Terminal Strip
Analog and Digital Input Connections
Terminal Description
TB1-DI 1 DCH1
TB1-DI 2 DCH2
TB1-DI 3 DCH3
TB1-AI 1 ACH1
TB1-AI 2 ACH2
TB1-GND Ground
TB2 Terminal Strip
KI Relay Outputs
Terminal Description
TB2-COM Common
TB2-COM Common
TB2-NO Normally Open
TB2-NC Normally Closed
TP-6694 9/20
TB1 6-position terminal block
Connection
No Function
Aux. Warning Switch
(see Note below)
No Function
No Function
Common A/D
Ground
Connection
User- Defined
Common Fault (2)
Common Fault
(32A)
User- Defined
P1 24-pin connector
(4) push-on terminal connectors
TB2 4-position terminal block
TB3 6-position terminal block
GM102396
149