PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Electrical Output Components Caterpillar

Electrical Output Components

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System [UENR6406]

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Electronic Control Module (ECM) - ECM Locations

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Sensor Signal (Analog, Active) - Test

ELECTRICAL AND STARTING SYSTEM

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System System Schematic

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Diagnostic Trouble Codes

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Location of Electrical Components

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Electrical Input Components

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Electrical Output Components

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Diagnostic Capabilities

PM620, PM622, PM820, PM822 and PM825 Cold Planers Electronic System Determining Diagnostic Trouble Codes

1.1. Outputs

2.1. Solenoids

3.2. Left Front Lower (1), Left Front Raise (2), Right Front Lower (3), Right Front Raise (4), Rear Lower (5), Rear Raise (6) Legs Solenoids

4.2. Conveyor Swing Speed Solenoid (7)

5.2. Rear Legs Lift Speed Solenoid (8)

6.2. First Stage Forward (9), First Stage Reverse (10), Second Stage Forward (11), Second Stage Reverse (12), Conveyor Drive Solenoids

7.2. Left Front (13), Right Front (14), Left Rear (16), Right Rear (17) Leg Equalization Control Solenoids

8.2. Front Legs Equalization Enable Solenoid (15)

9.2. Up (18), Down (19) Conveyor Secondary Solenoids

10.2. #1 Forward (21), #1 Reverse (22), #2 Forward (23), #2 Reverse (24) Drive Pump Control Solenoids

11.2. Right Rear (25), Left Rear (26), Right Front (27), Left Front (28), Drive Motor Solenoids

12.2. Right Front Side Plate Raise Solenoid (29)

13.2. Rotor Belt Tension Solenoid (30)

14.2. Rotor Clutch Solenoid (31)

15.2. Water Spray Pump Forward Control Solenoid (32)

16.2. Park Brake Solenoid (33)

17.2. Right Front Float (34), Right Front Lower (35), Right Rear Raise (36), Right Rear Lower (37), Right Rear Lock (38) Side Plate Solenoids

18.2. Rear Left (40), Rear Right (41), Front Left (44), Front Right (45) Steer Solenoids

19.2. Rear Toe Out (42), Rear Toe In (43), Front Toe In (46), Front Toe Out (47) Solenoids

20.2. Pressure Control (Down) (48), Lift (49), Float (50), Boost Pressure (51) Moldboard Solenoids

21.2. Left Rear Raise (39), Left Rear Lower (52), Left Rear Float (53), Left Front Float (54), Left Front Raise (55), Left Front Lower (56) Side Plate Solenoids

22.2. Close (57), Open (58) Rotor Door Solenoids

23.1. Power Distribution Module

24.2. Power Distribution Module (20)

Outputs

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Illustration 1	g06046500
ECM Output Components (1) Left Front Leg Lower Solenoid (2) Left Front Leg Raise Solenoid (3) Right Front Leg Lower Solenoid (4) Right Front Leg Raise Solenoid (5) Rear Legs Lower Solenoid (6) Rear Legs Raise Solenoid (7) Conveyor Swing Speed Solenoid (8) Rear Legs Lift Speed Solenoid (9) First Stage Conveyor Drive Forward Solenoid (10) First Stage Conveyor Drive Reverse Solenoid (11) Second Stage Conveyor Drive Forward (12) Second Stage Conveyor Drive Reverse (13) Left Front Leg Equalization Enable Solenoid (14) Right Front Leg Equalization Control Solenoid (15) Front Legs Equalization Enable Solenoid (16) Left Rear Leg Equalization Control Solenoid (17) Right Rear Leg Equalization Control Solenoid (18) Conveyor Secondary Up Solenoid (19) Conveyor Secondary Down Solenoid (20) Power Distribution Module (21) Drive Pump #1 Forward Control Solenoid (22) Drive Pump #1 Reverse Control Solenoid (23) Drive Pump #2 Forward Control Solenoid (24) Drive Pump #2 Reverse Control Solenoid (25) Right Rear Drive Motor Solenoid (26) Left Rear Drive Motor Solenoid (27) Right Front Drive Motor Solenoid (28) Left Front Drive Motor Solenoid (29) Right Front Side Plate Raise Solenoid (30) Rotor Belt Tension Solenoid (31) Rotor Clutch Solenoid (32) Water Spray Pump Forward Control Solenoid (33) Park Brake Solenoid (34) Right Front Side Plate Float Solenoid (35) Right Front Side Plate Lower Solenoid (36) Right Rear Side Plate Raise Solenoid (37) Right Rear Side Plate Lower Solenoid (38) Right Rear Side Plate Lock Solenoid (39) Left Rear Side Plate Raise Solenoid (40) Rear Steer Left Solenoid (41) Rear Steer Right Solenoid (42) Rear Toe Out Solenoid (43) Rear Toe In Solenoid (44) Front Steer Left Solenoid (45) Front Steer Right Solenoid (46) Front Toe In Solenoid (47) Front Toe Out Solenoid (48) Moldboard Pressure Control (Down) Solenoid (49) Moldboard Lift Solenoid (50) Moldboard Float Solenoid (51) Moldboard Boost Pressure Solenoid (52) Left Rear Side Plate Lower Solenoid (53) Left Rear Side Plate Float Solenoid (54) Left Front Side Plate Float Solenoid (55) Left Front Side Plate Raise Solenoid (56) Left Front Side Plate Lower Solenoid (57) Rotor Door Close Solenoid (58) Rotor Door Open Solenoid

Each ECM will use output circuits to send electrical control signals to the output components. The output signals can create an action or the output signals can provide information to the ECM. The ECM will use different types of output signals to control the system components. Following are the types of output signals:

PWM proportional driver
"ON/OFF" driver
Sinking driver
Sensor power supply
Data link

The ECM monitors the circuits of the output components. If the ECM determines that an abnormal condition exists in one of the circuits, the ECM will log a diagnostic code for the involved component.

Solenoids

Left Front Lower (1), Left Front Raise (2), Right Front Lower (3), Right Front Raise (4), Rear Lower (5), Rear Raise (6) Legs Solenoids

The Legs Solenoids are driven by the following outputs from the Machine ECM:

Left Front Lower - Pin J1-48
Left Front Raise - Pin J1-49
Right Front Lower - Pin J1-51
Right Front Raise - Pin J1-52
Rear Lower - Pin J1-58
Rear Raise - Pin J1-59

Conveyor Swing Speed Solenoid (7)

The Conveyor Swing Speed Solenoid is driven by output from the Machine ECM Pin J1-61.

Rear Legs Lift Speed Solenoid (8)

The Rear Legs Lift Speed Solenoid is driven by output from the Machine ECM Pin J1-62.

First Stage Forward (9), First Stage Reverse (10), Second Stage Forward (11), Second Stage Reverse (12), Conveyor Drive Solenoids

The Conveyor Drive Solenoids are driven by the following outputs from the Machine ECM:

First Stage Forward - Pin J1-65
First Stage Reverse - J1-66
Second Stage Forward - J1-67
Second Stage Reverse - J1-68

Left Front (13), Right Front (14), Left Rear (16), Right Rear (17) Leg Equalization Control Solenoids

The Leg Equalization Control Solenoids are driven by the following outputs from the Machine ECM:

Left Front- Pin J2–2
Right Front - Pin J2-3
Left Rear - Pin J2-6
Right Rear - Pin J2-7

Front Legs Equalization Enable Solenoid (15)

The Front Legs Equalization Enable Solenoid is driven by output from the Machine ECM Pin J2-5.

Up (18), Down (19) Conveyor Secondary Solenoids

The Conveyor Secondary Solenoids are driven by outputs from the Machine ECM. The Up solenoid from Pin J1-9 and the Down solenoid from Pin J1-10.

#1 Forward (21), #1 Reverse (22), #2 Forward (23), #2 Reverse (24) Drive Pump Control Solenoids

The Drive Pump Control Solenoids are driven by the following outputs from the Transmission ECM:

#1 Forward - Pin J1-48
#1 Reverse - Pin J1-49
#2 Forward - Pin J1-51
#2 Reverse - Pin J1-52

Right Rear (25), Left Rear (26), Right Front (27), Left Front (28), Drive Motor Solenoids

The Drive Motor Solenoids are driven by the following outputs from the Transmission ECM:

Right Rear - Pin J1-58
Left Rear - Pin J1-59
Right Front - Pin J1-61
Left Front - Pin J1-62

Right Front Float (34), Right Front Lower (35), Right Rear Raise (36), Right Rear Lower (37), Right Rear Lock (38) Side Plate Solenoids

These Side Plate Solenoids are driven by the following outputs from the Transmission ECM:

Right Front Float - Pin J2-3
Right Front Lower - Pin J2–2
Right Rear Raise - Pin J2-5
Right Rear Lower - Pin J2-6
Right Rear Lock - Pin J2-7

Rear Left (40), Rear Right (41), Front Left (44), Front Right (45) Steer Solenoids

The Steer Solenoids are driven by the following outputs from the Steering ECM:

Rear Left - Pin J1-48
Rear Right - Pin J1-49
Front Left - Pin J1-58
Front Right - Pin J1-59

Rear Toe Out (42), Rear Toe In (43), Front Toe In (46), Front Toe Out (47) Solenoids

These Toe Solenoids are driven by the following outputs from the Steering ECM:

Rear Toe Out - Pin J1-51
Rear Toe In - Pin J1-52
Front Toe In - Pin J1-62
Front Toe Out - Pin J1-61

Pressure Control (Down) (48), Lift (49), Float (50), Boost Pressure (51) Moldboard Solenoids

The Moldboard Solenoids are driven by the following outputs from the Steering ECM:

Pressure Control (Down) - Pin J1-68
Lift - Pin J1-65
Float - Pin J1-67
Boost Pressure - Pin J1-66

Left Rear Raise (39), Left Rear Lower (52), Left Rear Float (53), Left Front Float (54), Left Front Raise (55), Left Front Lower (56) Side Plate Solenoids

These Side Plate Solenoids are driven by the following outputs from the Steering ECM:

Left Rear Raise - Pin J1-12
Left Rear Lower - Pin J2-2
Left Rear Float - Pin J2-3
Left Front Float - Pin J2-7
Left Front Raise - Pin J2-5
Left Front Lower - Pin J2-6

Close (57), Open (58) Rotor Door Solenoids

The Rotor Door Solenoids are driven by the following outputs from the Steering ECM:

Close - Pin J2-13
Open - Pin J2-11

Power Distribution Module

Power Distribution Module (20)

Outputs from the Machine ECM, Transmission ECM, and Steering ECM all drive components of the Power Distribution Module. There are no diagnostics for the module.