SUPPORT AS-ROPS 3500015 - Caterpillar

Table 1
Pins and Terminations of the Control's 6-Pin Connector    
Pin     Termination    
"A"     Coil 3 of the motor for the fuel valve    
"B"     Coil 2 of the motor for the fuel valve    
"C"     Coil 4 of the motor for the fuel valve    
"D"     0 to +24 V power supply for coils 2 and 4 (1)    
"E"     0 to +24 V power supply for coils 1 and 3 (1)    
"F"     Coil 1 of the motor for the fuel valve    
( 1 ) If the motor for the fuel valve is actuating, the voltage will vary.
Table 2
Pins and Terminations of the Control's 19-Pin Connector    
Pin     Termination    
"A"     +24 V power supply (1)    
"B"     Return for the +24 V power supply (2)    
"C"     Alarm output (3)    
"D"     +24 V switched supply for the oxygen buffer (4)    
"E"     Return for the oxygen buffer    
"F"     Signal from the oxygen buffer (5)    
"G"     +24 V supply for the inlet manifold pressure sensor (6)    
"H"     Return for the inlet manifold pressure sensor    
"J"     Signal from the inlet manifold pressure sensor (5)    
"K"     +5 V supply for the inlet manifold temperature sensor (6)    
"L"     Return for the inlet manifold temperature sensor    
"M"     Signal from the inlet manifold temperature sensor (7)    
"N"     Spare return 2    
"P"     Spare input 3    
"R"     Spare return 3    
"S"     Spare input 4    
"T"     Ground for the speed sensor's shield    
"U"     Positive input from the speed sensor    
"V"     Negative input from the speed sensor    
( 1 ) The power supply uses a ten amp fuse. Five amperes are required primarily for the oxygen sensor's heater.
( 2 ) The return for the power supply uses a ten amp fuse.
( 3 ) The output for the alarm is normally closed. The switch opens for an alarm condition.
( 4 ) The power supply for the buffer is limited to five amperes. The current is limited by temperature.
( 5 ) The frequency of the PWM signal is 500 Hz.
( 6 ) The power supply for the sensor is limited to 200 mA. The current is limited by temperature.
( 7 ) A signal of 0 volts is equivalent to a reading of 0° C. A signal of 5 volts is equivalent to a reading of 125° C.