477905 Volvo.Penta Cover

Illustration 1 g00662501
Diagram Of The Engine Control and Hydraulic Pump Control (1) Controller (2) Connector 2 (3) Connector 1
Table 1
Engine And Hydraulic Pump Control (Connector 2) (1)    
No.1     Function     Type    
2     Front Pump
Pressure Sensor     Sensor Input (Freq.)    
3     Proportional Reducing
Valve (+)     Solenoid Output (Pulsed)    
4     Proportional Reducing
Valve (-)     Solenoid Output (Pulsed)    
6     AUX Pressure     Switch Input (Operational)    
7     Implement Pressure     Switch Input (Operational)    
8     Boom Raise Pressure     Switch Input (Operational)    
12     Trenching Solenoid     Solenoid Output (On/Off)    
15     Coolant Level     Switch Input (Operational)    
18     Travel Pressure     Switch Input (Operational)    
21     Level Finish Solenoid     Solenoid Output (On/Off)    
22     Travel Speed Solenoid     Solenoid Output (On/Off)    
24     Engine Speed (+)     Sensor Input (Freq.)    
25     Engine Speed (-)     Sensor Return    
26     Engine Oil Pressure     Switch Input (Operational)    
27     Swing Brake Solenoid     Solenoid Output (ON/OFF)    
29     Fuel Level     Sensor Input (Voltage)    
30     Hydraulic Oil Temperature     Sensor Input (Voltage)    
31     Travel Alarm     Solenoid Output (On/Off)    
34     Alternator "R" Terminal     Sensor Input (Alternator)    
35     Air Cleaner     Switch Input (Operational)    
36     Engine Oil Level     Switch Input (Operational)    
38     Monitor (+)     Power    
40     Hydraulic Oil Level     Switch Input (Operational)    
( 1 ) The connector contacts that are not listed are not used. The connector has 40 contacts.
Table 2
Engine And Hydraulic Pump Control (Connector 1) (1)    
No.1     Function     Type    
1     +Battery (Unswitched)     Power    
2     Ground     Ground    
3     +Battery (Switched)     Switch Input (Key start)    
11     +Battery (Unswitched)     Power    
12     Ground     Ground    
13     Engine Speed Dial S1     Switch Input (Operational)    
14     Engine Speed Dial S2     Switch Input (Operational)    
15     Data Link (+)     Input/Output    
16     Data Link (-)     Input/Output    
19     Data Link (+)     Input/Output    
20     Data Link (-)     Input/Output    
22     Fine Swing     Switch Input (Operational)    
23     Engine Speed Dial S3     Switch Input (Operational)    
24     Engine Speed Dial S4     Switch Input (Operational)    
30     Electronic Governor Throttle     Output (PWM)    
31     RS232C (TX)     Input/Output    
32     RS232C (RX)     Input/Output    
33     RS232C (GND)     Input/Output    
34     Low Idle     Switch Input (Operational)    
39     Hydraulic Oil Filter Switch     Switch Input (Operational)    
( 1 ) The connector contacts that are not listed are not used. The connector has 40 contacts.The controller sends a PWM signal to the engine ECM through contact 1-30. If the engine speed dial is in the position of 10, the engine and pump controller will maintain the engine rpm according to the position of the engine speed dial and the actual engine rpm. With the engine speed dial in a position of 1 through 9, the controller will maintain the rpm of the engine according to the position of the engine speed dial. Position 1 through 9 of the engine speed dial will send a unique signal and a constant signal to the engine ECM according to the position of the switch. The engine and pump controller will vary the signal to the engine ECM when the engine speed dial switch is in the position of 10. The controller will adjust the output of the hydraulic pump in order to maintain the target speed for the engine. According to the position of the engine speed dial, the controller will send a corresponding signal to the power shift solenoid.Input/Output
Each input and output of the controller is connected to the machine harness through two 40-pin connectors. The data link is a bidirectional component. The data link allows the engine and pump controller to receive information and the engine and pump controller can send information. The data link is designed to allow communications between the controller, the monitor and the engine ECM. The data link is not a visible component. The data link consists of internal control circuits and the connecting harness wiring. The controller sends information through the data link. The following list contains some examples: fuel level, engine coolant temperature and the power mode that is selected to the monitor panel. The controller also receives requested information from the monitor panel. The following list contains some examples: power mode and fine control mode. Input
Each input will describe the status of the machine system. Two types of inputs are used: switch type and sensor type. Switches and harnesses provide an open or ground to the controller. Sensors and harnesses provide a si