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| Illustration 1 | g01252941 |
Interface control module | |
The function of the interface control module is to provide a connection between the remote control system and the machine electrical system. It also minimizes the current draw through the contacts in the receiver.
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| Illustration 2 | g01256461 |
Interface control module (cover removed) | |
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| Illustration 3 | g01273762 |
Interface control module (1) Relay 11 for forward (2) Relay 12 for spare (fire optional) (3) Relay 13 for fourth speed (4) Relay 14 for third speed (5) Relay 15 for second speed (6) Relay 16 for engine stop (7) Relay 17 for parking brake (8) Relay 18 for first speed (9) Relay 19 for horn (10) Harness connector (11) Throttle switch (12) Circuit breaker (10 amp) (13) Circuit breaker (10 amp) (14) Harness connector (15) Relay 10 for reverse (16) Relay 9 for front lights right side (17) Relay 8 for rear lights left side (18) Relay 7 for autodig enable (19) Relay 6 for brake control (20) Relay 5 for service brake N/C (21) Relay 4 for service brake N/O (22) Relay 3 for rear lights right side (23) Relay 2 for front lights left side (24) Relay 1 for engine start | |
Harness connector (10) and harness connector (14) are mounted on each end of the interface control module. Harness connector (10) is connected to the receiver. Harness connector (14) is connected to the machine electrical system.
Throttle switch (11) is mounted in the center of the interface control module. Throttle switch (11) is used in conjunction with the throttle circuit of the machine. Throttle switch (11) will be in the ON position when used with the factory installed remote control system. For information on other remote control systems contact your Caterpillar dealer.
The interface control module contains 19 relays. One relay for each remote control on\off function.
When the remote control switch in the operator station is in the ON position, the 19 relays for on/off functions have 24 volt power or ground available at the contacts. When an on/off function on the transmitter is selected, an electrical signal is sent from the receiver to energize the corresponding relay. The relay switches 24 volt power or ground to the machine electrical system.
When the remote control switch in the operator station is in the ON position and a proportional function on the transmitter is selected, a Pulse Width Modulated (PWM) electrical signal is sent from the receiver through the interface control module to the steering and bucket control valve solenoids. Also a PWM electrical signal is sent to the throttle control module.
Relay 17 (7), relay 5 (20) and relay 4 (21) are inputs of the Power Train Electronic Control Module (ECM). The operation of the Power Train ECM changes when the remote control switch in the operator station is in the ON position. The Power Train ECM will record diagnostic codes for relay 17 (7), relay 5 (20) and relay 4 (21) .
ReferenceFor information on the Power Train Electronic Control Module (ECM) refer to Systems Operation, Power Train, "Electronic Control Module (Power Train)".