PLUG AS-CONNECTOR 1297163 - Caterpillar

Outputs
The ECM responds to decisions by sending electrical signals to the outputs. The outputs can create an action or the outputs can provide information to the operator or the service technician.Solenoids
On/Off Solenoids
Illustration 22 g01158530The values in Table 12 are for bench testing only. Values may not represent parameters for machine systems specifications.
Table 12
Rated Voltage 24 VDC
Coil Resistance 32.0 3.2Ω (T=20° C) The On/Off solenoids include:
Swing brake solenoid
Travel speed solenoid
Straight travel solenoid
Hydraulic lock solenoid
Swing priority solenoidProportional Reducing Solenoid Valve
Illustration 23 g02703776The values in Table 13 are for bench testing only. Values may not represent parameters for machine systems specifications.
Table 13
Current Range 0 mA ~ 700 mA
Coil Resistance 11.5 0.5Ω (T=20° C)
Illustration 24 g02263554
A - Port pressure (kPa) vs Current (mA)
The proportional reducing solenoid valve is used on machines equipped with tool control. The P-Port is blocked and does not allow pressure to the A-port. Therefore, the machine ECM must apply current to the PRV to send pressure to the A-port of the PRV.Reverse Proportional Reducing Solenoid Valve
Illustration 25 g02304374
Valve cutaway, hydraulic schematic symbol, and electrical connector designation
The values in Table 14 are for bench testing only. Values may not represent parameters for machine systems specifications.
Table 14
Current Range 0 mA ~ 700 mA
Coil Resistance 11.5 0.5Ω (T=20° C)
Illustration 26 g02304414Reverse PRV's have the P-port open to the A-port with no current applied. Therefore, the machine ECM applies current to the PRV to decrease the pressure at the A-port.The reverse PRV's include:
Boom Regeneration PRVESP Pump Solenoid Valve
Illustration 27 g03236478The values in Table 15 are for bench testing only. Values may not represent parameters for machine systems specifications.
Table 15
Rated Voltage 24 V
Coil Resistance 5 0.3Ω (T=25° C)
5 0.3Ω (T=25° C) The ESP pump solenoid valve is located on the drive pump and idler pump regulators. The solenoid valve controls the horsepower control spool in the pump regulator. Current of 1 amp maintains the spool in the neutral position and cannot be adjusted.Data Link
The data link is a controller network used to pass information back and forth. The data link is designed to carry communications between the various controllers and the monitor. The data link is not a visible component. The network consists of internal control circuits and a wiring harness. The data link is bidirectional. The controllers can receive information and send information. Two 120 Ohm terminating resistors must be installed in the wiring harness in order for each data link to function properly.An example of how the data link works would be the fuel level information. The fuel level sensor is connected to the switch panel. The switch panel then sends the fuel level information over the data link to the monitor. The monitor uses this information to display the fuel level.
Illustration 28 g06113868
Schematic of the data link circuit
Action Alarm
The action alarm sounds to alert the operator when a high emergency condition is present. For example, the engine oil pressure decreases below a set value.Travel Alarm
The travel alarm sounds to alert the area that the machine is moving.