SWITCH (heat start) 7N8002 - Caterpillar

Output Test
When an output test signal is received, the RDM activates all outputs for 10 seconds or until the test signal is deactivated. To do an output test, connect terminal 5 of the RDM to terminal 7 of the RDM with a jumper.When the data link malfunctions, R1 output (terminal 2 of RDM) will FLASH at a rate of 0.5 Hz. Relays R2 through R9 will either maintain their present state or default to OFF. This is controlled by a jumper between terminals 6 and 7 of the RDM. If a jumper is NOT present when the serial data link has a fault, the relay outputs (R2 through R9) will maintain their present state. If the jumper is present, R2 through R9 will default to OFF. Specifications:* The maximum distance between the RDM and the GSC+ is 305 m (1000 ft.).* The operating voltage range is from 15 to 45 DCV. The RDM is designed to operate when powered by only 24 or 32 DCV battery systems.* The RDM is capable of operating with or without an earth ground.* The RDM must share a common ground with the GSC+ and the relay board.* The terminals on the RDM are 6.4 mm (.25 in.) push on blade type connectors.* The terminals on the relay board are 6-32 screw terminals.* The driver outputs of the RDM are intended to drive incandescent lamps or relay loads. The driver outputs sink up to 600mA at 15 to 45 DCV and are protected against short circuits to B+ and B-.* The relay outputs of the relay board are protected by 1 amp fuses. The contacts are flashed silver and are rated at 1A at 28 DCV. The relay coils draw 20mA at 24 DCV. The GSC+ diagnoses a fault in the relay driver module circuit. See CID 475 in the topic Diagnostic Fault Codes of the Testing and Adjusting section. The CID 475 procedure also contains schematics for relay driver module installation purposes.Synchronizing Lights Module
Synchronizing Lights Module
(1) Synchronizing lights. (2) Synchronizing switch.The optional synchronizing lights (SL) module is located on the instrument panel (same location as for the optional alarm module). The SL module is not used when the panel is equipped with an electronic governor.Synchronizing lights (SL) are used as an aid in manually paralleling generator units independent of load. Each of two lights are connected across the generator to the load side of the generator output circuit breaker. The voltage of two phases are measured and the lights indicate when the voltages are in phase. When the voltages are in phase, closing the circuit breaker puts the generator on-line with the other generator unit(s). For a complete explanation on how to parallel two units, make reference to the Operation and Maintenance Manual for SR4B Generators and Control Panels, Form No. SEBU6918.Synchronizing Module Installation
To avoid electrical shock and personal injury, shut-down all on-line gensets before installing or repairing the synchronizing module.
For connection of the synchronizing light module and connection of resistor taps