INSERT-COUPLING 7Y1900 - Caterpillar

The engine control panel is equipped with three levels of protection for the alarm circuit:
Minimal
Complete
MaximumEach level of protection can be ordered with an annunciator. The annunciator is built into the ECP. The annunciator consists of a number of indicators for each condition that can exist. When a condition is out of range, the ECP will illuminate the indicator for that condition.Table 1 describes the protection that is available for alarms for each level.
Table 1
Description of the Levels of Protection for Alarms    
Description    Annunciator Label    Minimal    Complete    Maximum    
Speed pickup     "SPEED PICKUP FAIL"     X     X     X    
Low engine oil level     "LOW ENG OIL LEVEL"     X     X     X    
Low engine oil pressure     "LOW ENG OIL PRESS"     X     X     X    
Metal particle detector     "METAL CHIP ALARM"     X     X     X    
High engine oil temperature     "HIGH ENG OIL TEMP"     X     X     X    
High jacket water coolant temperature     "HIGH JACKET WATER TEMP"     X     X     X    
Low jacket water level     "LOW JACKET WATER LEVEL"     X     X     X    
Circuit breaker     "CKT BRK TRIP"     X     X     X    
High inlet manifold temperature     "HIGH MAN AIR TEMP"     X     X     X    
High exhaust manifold temperature     "HIGH EXH MAN TEMP"     X     X     X    
Loss of jacket water     "LOSS JACKET WATER FAULT"     X     N/A     N/A    
Low starting air pressure     "LOW START AIR PRESS"     N/A     X     X    
High fuel temperature     "HIGH FUEL TEMP"     N/A     X     X    
Low fuel pressure     "LOW FUEL PRESS"     N/A     N/A     X    
Low jacket water pressure     "LOW JACKET WATER PRESS"     N/A     N/A     X    
Low aftercooler/oil cooler water pressure     "LOW AC/OC WATER PRESS"     N/A     N/A     X    
Customer defined     "SPARE"     X     X     X    X - standard equipmentN/A - Not AvailableAn optional alarm indicator can be installed by the customer. The customer can connect one wire of an alarm contact to terminal 42 of the engine protection box (EPB) and the other wire can be connected to one of the following terminals of the EPB: 1A, 90, 91 and 93. The following table shows the alarm response for each terminal.
Table 2
Terminal    Alarm Response    
1A     The