AXLE ASSEM. 8D7064 - Caterpillar

Motor ECM
Table 7
Contact Description J1(1)
No.(2) Function Type
1 Keyswitch On Keyswitch
2 Drive Motor Speed Sensor 1, A Differential Speed +1
4 Drive Motor Speed Sensor 1, B Differential Speed +2
8 Motor 2 Winding Temperature Sensor 1+ Resistive Sender 5+
9 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 8
Contact Description J2(1)
No.(2) Function Type
1 Voltage INP 1 (DC Power buss) Voltage Input 1
4 IGBT Feedback 1 IGBT Feedback 1
6 Ground Shield (Ground)
8 Ground Shield (Ground)
9 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.