McCain ATC eX NEMA - Internal Wiring

McCain ATC eX NEMA Controller – User Manual 15
Version 1.0
2.6.6 Internal Wiring.
A set of harnesses is provided for interconnecting the internal sub-assemblies of the ATC eX NEMA
controller. Some of them are common for all configurations and others are used only for specific
configurations.
Below are described the labels on the plug connectors and the connector headers where they belong.
Common Harnesses:
Harness C1-C2-Q1:
Connect C1 to P1 on Control Signals board (M66450A), C2 to P8 on Host board (M69945A) and Q1 to
P2 on Modem board (M66279A). The ring terminals on green wires must be connected to the chassis
stud on NEMA controller.
Harness J1-J2:
Connect J1 to CN1 on Power Supply Assembly (M45891) and J2 to AC OUTPUT on Control Signals
board (M66450A).
Harness H1-P1:
Connect H1 to CN2 on Power Supply Assembly (M45891) and P1 to DC INPUT on Control Signals board
(M66450A).
Harness J3:
Connect J3 to FUSE/SWITCH on Control Signals board (M66450A).
Harness G1-G2:
Connect CN1 on Host board (M69945A) to J1 on Engine board (M69588A).
Chassis wire:
This green wire with ring terminals on both ends connects the lower left corner of the Control Signals
board (M66450A) to the chassis stud located on the bottom of the controller’s chassis.
Harnesses for a TS2 Type 1 Application (A2 Connector):
When using a connector box for a TS2 Type 1 application, the below harnesses’ connections on the
controller apply.
Connect P4 to AC INPUT on Control Signals board (M66450A).
Connect J6 to P10 on Host board (M69945A).
Connect green wire with ring terminal to the chassis stud located on the bottom of the controller’s chassis.
Harnesses for a TS2 Type 2 application (Connector Box harnesses):
When using a connector box for a TS2 Type 2 application, the below harnesses’ connections on the
controller apply.
Connect P3 to AC INPUT on Control Signals board (M66450A).
Connect J4 to CONN BOX on Control Signals board (M66450A).
Harness J5 to P10 on Host board (M69945A).
Connect ribbon cable from P7 on Connector box to P9 on Host board (M69945A).
Connect green wire with ring terminal to the chassis stud located on the bottom of the controller’s chassis.