COVER 7L7841 - Caterpillar

Electric Power Generation:
3516C GEN SET (S/N: SBK1-UP)
Engine:
3512 (S/N: YAK1-UP; YAX1-UP)
3512B (S/N: YAM1-UP; YAN1-UP; YAY1-UP; YAZ1-UP)
3512C (S/N: SBG1-UP)
3516 (S/N: YAL1-UP; YAS1-UP)
3516B (S/N: YAP1-UP; YAR1-UP; YAT1-UP; YAW1-UP)
3516C (S/N: SBJ1-UP)
ReferenceRefer to Application and installation guide, LEBE0006, "EMCP 4.1, 4.2 Generator Set Control".ReferenceRefer to Special Instruction, REHS7333, "Procedure to Inspect EMCP 4.2 RS485 Remote Annunciator Interface Harness On Certain 3512 and 3516 Generator Sets".The RS485 remote annunciator (382-7977 Alarm Gp ) is an optional attachment that ships loose with the EMCP 4.2 control.
Illustration 1 g03306219
Illustration 2 g03306220
(1) EP-C1 - RS485 6 pin connectorIf during the installation of the remote annunciator there is a communication error shown by the 2 LED located at the bottom of the annunciator blinking a green light, check for proper wiring connection either on the terminal block that is located in the AC/DC box (Refer to Illustration 1) or at the EP-C1 located in the back of EMCP 4.2 panel (Refer to Illustration 2).Refer to the Special Instruction REHS7333 to troubleshoot and correct the problem.