D7E Track-Type Tractor Power Train Systems Caterpillar


Connector Contact Description

Usage:

D7E MDB

Connector Contact Numbers



Illustration 1g00554751
Electronic Control Module (ECM)


Illustration 2g00556522
Machine Harness Connectors J1 and J2 that mate to the ECM.

Machine ECM

Table 1
Contact Description J1(1) 
No.(2)  Function  Type 
Key Switch On  Key Switch Input 
Engine Speed +  Differential Speed Input (+) 
Engine Speed -  Differential Speed Input (-) 
11  +5 V Sensor Power  Sensor Power Output 
13  - Battery  Battery Return 
21  5 V Sensor Return  Sensor Power Return 
23  - Battery  Battery Return 
24  Ingress Lighting Request Input  Switch to Battery Input 
25  Forward Facing ROPS Flood Request Input  Switch to Battery Input 
26  Location Code 0  Switch to Ground Input 
27  Location Code 1  Switch to Ground Input 
28  Location Code Enable  Switch to Ground Input 
29  PTO Tank Temperature Sensor  Analog Input 
30  Separate Circuit Coolant Temperature Sensor  Analog Input 
31  + Battery  Battery Power Input 
32  Location Code 2  Switch to Ground Input 
35  Parking Brake Switch Engaged (N/O)  Switch to Ground Input 
36  Steering Pump Charge Press Sensor  Analog Input 
37  PT Lube Pressure Sensor  Analog Input 
38  + Battery  Battery Power Input 
39  + Battery  Battery Power Input 
40  Parking Brake Switch Released (N/C)  Switch to Ground Input 
44  +8 V Sensor Power  Sensor Power Output 
45  8 V Sensor Return  Sensor Power Return 
47  + Battery  Battery Power Input 
50  Main Power Relay Return  Sourcing Driver Return 
53  Operator Not Present Membrane Switch  Analog Input 
54  Left/Right Steer Pump Solenoid Return  Sourcing Driver Return 
55  Proportional Brake Solenoid Return  Sourcing Driver Return 
56  10 V Return  Sensor Power Return 
57  - Battery  Battery Return 
65  Proportional Brake Valve Solenoid  Sourcing Driver Output 
67  Left Steering Pump Solenoid  Sourcing Driver Output 
68  Right Steering Pump Solenoid  Sourcing Driver Output 
69  +10 V Power Supply  Sensor Power Output 
70  - Battery  Battery Return 
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.

Table 2
Contact Description J2(1) 
No.(2)  Function  Type 
Key Switch Start  Switch to Battery Input 
Main Power Relay Driver  Sourcing Driver Output 
Brake Dump Valve Solenoid  Sourcing Driver Output 
Brake Solenoid Return  Sourcing Driver Return 
Backup Alarm  Sourcing Driver Output 
Start Relay Driver  Sourcing Driver Output 
Start Relay/ Backup Alarm Return  Sourcing Driver Return 
12  Forward Facing ROPS Floods Driver  Sinking Driver Output 
22  Digital Return  Return 
24  Steering Lever Position Sensor 1  PWM Input 
25  Steering Lever Position Sensor 2  PWM Input 
33  Throttle  PWM Input 
34  Steering Motor Speed Sensor 1  PWM Input 
35  Steering Motor Speed Sensor 2  PWM Input 
38  Speed Resume Switch (N/O)  Switch to Ground Input 
39  Speed Resume Switch (N/C)  Switch to Ground Input 
42  Thumbroller Speed Input  PWM Input 
43  Travel Control Pedal Sensor  PWM Input 
48  FNR 1 Signal  PWM Input 
49  FNR 2 Signal  PWM Input 
51  BI-DIR Shift  PWM Input 
54  Seat Belt (N/O)  Switch to Ground Input 
55  Seat Belt (N/C)  Switch to Ground Input 
58  Separate Circuit Coolant Pressure  Switch to Ground Input 
64  CAN B High  CAN Data Link (+) 
65  CAN B Low  CAN Data Link (-) 
67  CAN A High  CAN Data Link (+) 
68  CAN A Low  CAN Data Link (-) 
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.

Generator ECM

Table 3
Contact Description J1(1) 
No.(2)  Function  Type 
Key Switch On  Keyswitch 
Generator Speed Sensor +  Differential Speed +1 
Generator Speed Sensor -  Differential Speed -1 
Secondary Generator Speed Sensor +  Differential Speed +2 
Secondary Generator Speed Sensor -  Differential Speed -2 
35  Location Code Enable  Switch to Ground 7 
38  - Battery  Batt -1 
40  Location Code 1  Switch to Ground 8 
53  CAN A High  CAN A + 
54  CAN A Low  CAN A - 
57  + Battery  Batt +3 
66  CAN B High  CAN B + 
67  CAN B Low  CAN B - 
69  - Battery  Batt -4 
70  + Battery  Batt +4 
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.

Table 4
Contact Description J2(1) 
No.(2)  Function  Type 
Voltage Input  Voltage Input 1 
IGBT Feedback  IGBT Feedback 1 
Ground  Shield (Ground) 
Ground  Shield (Ground) 
IGBT Drive 1  IGBT Drive 1 
10  IGBT Drive 12  IGBT Drive 2 
14  Voltage INP 2 (Generator Current Phase A)  Voltage Input 2 
15  Sensor +15 V #2  Sensor +15 
17  IGBT Feedback 2  IGBT Feedback 2 
19  Ground  Shield (Ground) 
20  IGBT Drive 3  IGBT Drive 3 
24  Voltage INP 3 (Generator Current Phase B)  Voltage Input 3 
25  Sensor -15V #2  Sensor -15 
27  IGBT Feedback 3  IGBT Feedback 3 
28  IGBT Drive 4  IGBT Drive 4 
32  Voltage INP 4 (Generator Current Phase C)  Voltage Input 4 
33  Ground  Shield (Ground) 
35  IGBT Feedback 4  IGBT Feedback 4 
36  IGBT Drive 5  IGBT Drive 5 
37  IGBT Drive 6  GBT Drive 6 
38  Generator Reset Command  IGBT Drive 7 
41  Sensor -15 V  Sensor –15 
43  IGBT Feedback 5  IGBT Feedback 5 
48  Voltage INP 6 (Redundant DC Power buss)  Voltage Input 6 
49  Sensor +15 V #1  Sensor +15 
51  IGBT Feedback 6  IGBT Feedback 6 
53  Ground  Shield (Ground) 
54  Resistive SDR 1- (Generator IGBT Temperature Sense)  Resistive Sender 1 - 
58  Voltage INP 7 (Generator Voltage A-B Sensor)  Voltage Input 7 
61  Generator Reset Feedback  IGBT Feedback 7 
63  Ground  Shield (Ground) 
65  Ground  Shield (Ground) 
67  Resistive SDR 1+ (Generator IGBT Temperature Sense)  Resistive Sender 1+ 
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.

Motor ECM

Table 5
Contact Description J1(1) 
No.(2)  Function  Type 
Keyswitch On  Keyswitch 
Drive Motor Speed Sensor 1, A  Differential Speed +1 
Drive Motor Speed Sensor 1, B  Differential Speed +2 
Motor 2 Winding Temperature Sensor 1+  Resistive Sender 5+ 
Motor 2 Winding Temperature Sensor 1-  Resistive Sender 5 - 
10  Motor 1 Winding Temperature Sensor 1+  Resistive Sender 6 + 
11  Motor 2 Winding Temperature Sensor 2+  Resistive Sender 7 + 
12  Motor 1 Winding Temperature Sensor 2+  Resistive Sender 8 + 
15  Drive Motor Speed Sensor 1 Return  Shield (Ground) 
20  Motor 1 Winding Temperature Sensor 1-  Resistive Sender 6 - 
21  Motor 2 Winding Temperature Sensor 2-  Resistive Sender 7 - 
22  Motor 1 Winding Temperature Sensor 2-  Resistive Sender 8 - 
35  Location Code Enable  Switch to Ground 7 
38  Battery -  Batt -1 
41  Location Code 2  Switch to Ground 9 
43  12V Sensor Supply  Sensor +12 
53  CAN A High  CAN A + 
54  CAN A Low  CAN A - 
57  Battery +  Batt +3 
58  Drive Motor Speed Sensor 2, A  PWM Speed 1 
59  Drive Motor Speed Sensor 2, B  PWM Speed 2 
66  CAN B High  CAN B + 
67  CAN B Low  CAN B - 
69  Battery -  Batt -4 
70  Battery +  Batt +4 
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.

Table 6
Contact Description J2(1) 
No.(2)  Function  Type 
Voltage INP 1 (DC Power buss)  Voltage Input 1 
IGBT Feedback 1  IGBT Feedback 1 
Ground  Shield (Ground) 
Ground  Shield (Ground) 
IGBT Drive 1  IGBT Drive 1 
10  IGBT Drive 2  IGBT Drive 2 
14  Voltage INP 2 (Motor Current Phase A)  Voltage Input 2 
15  Sensor +15V #2  Sensor +15 
17  IGBT Feedback 2  IGBT Feedback 2 
19  Ground  Shield (Ground) 
20  IGBT Drive 3  IGBT Drive 3 
24  Voltage INP 3 (Motor Current Phase B)  Voltage Input 3 
25  Sensor -15V #2  Sensor -15 
27  IGBT Feedback 3  IGBT Feedback 3 
28  IGBT Drive 4  IGBT Drive 4 
32  Voltage INP 4 (Motor Current Phase C)  Voltage Input 4 
33  Ground  Shield (Ground) 
35  IGBT Feedback 4  IGBT Feedback 4 
36  IGBT Drive 5  IGBT Drive 5 
37  IGBT Drive 6  IGBT Drive 6 
38  Motor Reset Command  IGBT Drive 7 
41  Sensor -15V #1  Sensor –15 
43  IGBT Feedback 5  IGBT Feedback 5 
48  Voltage INP 6 (Redundant DC Power buss)  Voltage Input 6 
49  Sensor +15 V #1  Sensor +15 
51  IGBT Feedback 6  IGBT Feedback 6 
53  Ground  Shield (Ground) 
54  Resistive SDR 1- (Motor IGBT Temperature Sense)  Resistive Sender 1 - 
61  Motor Reset Feedback  IGBT Feedback 7 
63  Ground  Shield (Ground) 
65  Ground  Shield (Ground) 
67  Resistive SDR 1+ (Motor IGBT Temperature Sense)  Resistive Sender 1+ 
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.

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