PLATE 8S4211 - Caterpillar

spare output responds to a selected trigger condition. The response is high or low. The response and the trigger condition are programmable.The GSC+ spare outputs response must be programmed as a active high or as active low (setpoint SP13). When the output is active, an active low pulls the output. The output is pulled toward the B-. The output draws a maximum of 100 mA when the output is in the low state. The active high is approximately 5.0 DCV when no devices are connected to the spare output. The spare output is able to drive logic circuits with high impedance (36 000 ohm minimum). The spare output will not drive low impedance loads such as relays.The setpoint SP14 must be programmed to the condition that triggers the spare output to the active state. The possible trigger conditions that can activate the spare output are listed in System Operation, "Spare Input/Output Programming OP6".See System Operation, "Spare Input/Output Programming OP6" for more information on programming the setpoints for the output.Note: Using the spare output to activate the shunt trip coil of the AC circuit breaker during engine cooldown is common.Note: The GSC+ diagnoses a fault in the spare output circuit. See Testing And Adjusting, "CID 334 Spare Output".