Manitowoc Published 11-06-15, Control # 040-13 3-25
2250 SERVICE/MAINTENANCE MANUAL ELECTRIC SYSTEM
Left Rear Drum Free Fall Light D-37 81DSL 12 volts Nominal
I/O 4 (DO)
Left Rear Drum Park Switch B-28 89Z3 12 volts Nominal I/O 2 (DI)
Left Rear Drum Parking Brake Solenoid C-19 81EL 12 volts Nominal I/O 1 (DO)
Left Rear Drum Selector Switch B-22 89J1 12 volts Nominal I/O 2 (DI)
Left Track Handle A-07 84P
0 volts Neutral; 1.4 to 5 volts Reverse;
5 to 8.6 volts Forward
I/O 1 (AI)
Left Track Hydraulic System Pressure Sender A-28 84QS 1.2 volts at 300 psi; 1 volt at 0 psi CPU (AI)
Left Track Pump Control C-23 84A
0 to 2.8 ± 10% (110 Ma) volts Reverse;
0 to -2.8 ± 10% (-110 Ma) volts Forward
I/O 3 (AO)
Level Sensor - X Dimension A-32 99
5 volts at 0°;
0.5 volts Change Per Degree
I/O 3 (AI)
Level Sensor - Y Dimension A-33 99A
5 volts at 0°;
0.5 volts Change Per Degree
I/O 3 (AI)
Limit Bypass Switch B-25 89L 12 volts Nominal I/O 2 (DI)
Rated Capacity Indicator/Limiter Switch D-10 89P 12 volts Nominal I/O 3 (DI)
Low Air Pressure Switch B-20 89V3 3.2 volts at 110 psi; 1 volt at 0 psi I/O 2 (DI)
Lower Boom Point Load Pin A-34 SIG1V 0.8 volts 0 Load; 7 volts 30,000 lb. CPU (AI)
Lower Jib Load Pin A-36 SIG3V 0.8 volts 0 Load; 7 volts 30,000 lb. CPU (AI)
Luffing Hoist Brake Solenoid C-25 87E 12 volts Nominal
I/O 2 (DO)
Luffing Hoist Drum Flange Encoder CHA D-01 87MA
7.5 volts or 0 volts Not Moving;
3.5 volts Moving
I/O 1 (DI)
Luffing Hoist Drum Flange Encoder CHB D-02
87MB
7.5 volts or 0 volts Not Moving;
3.5 volts Moving
I/O 1 (DI)
Luffing Hoist Handle A-29 86P
0 volts Neutral; 1.4 to 5 volts Lower;
5 to 8.6 volts Raise
CPU (AI)
Luffing Hoist Motor Control D-24 87MD
0.98 volts to 8.01 volts: 0% to 100%
Motor Command
I/O 1 (AO)
Luffing Hoist Park Switch B-30 89C4 12 volts Nominal I/O 3 (DI)
Luffing Jib Angle Indicator A-21 87BA
4.7 volts Boom at 0°; 8.0 volts Boom at
60°; 9.2 volts Boom at 82°
CPU (AI)
Luffing Jib Maximum Angle Limit Switch B-17 89W1 10 volts I/O 2 (DI)
Luffing Jib Minimum Angle Limit Switch B-16 89S1 10 volts I/O 2 (DI)
Main Display CPU Receive/Transmit D-18
30
RS-0
Variable 6 to 7 Volts Nominal
CPU (Comm)
Main Display Transmit D-19 31 TX2 Variable 6 to 7 Volts Nominal
CPU (Comm)
Main Display Receive/transmit D-20
30
RS-0
Variable 6 to 7 Volts Nominal
CPU (Comm)
Main Hoist Hydraulic Charge Press. Sender A-25 81Q 2.6 volts at 300 psi; 1 volt at 0 psi CPU (AI)
Main Hoist Hydraulic System Press. Sender A-22 81QS 1.2 volts at 300 psi; 1 volt at 0 psi CPU (AI)
Main Hoist Motor Control (Sauer-Danfoss) D-25 81MD
0.98 volts to 8.01 volts: 0% to 100%
Motor Command
I/O 2 (AO)
Main Hoist Motor Control (Rexroth) D-34 81MC 0 volts to 12 volts
I/O 3 (DO)
Main Hoist Pump Control 1 C-05 80A
0 to 2.8 ± 10% (110 Ma) volts Down;
0 to -2.8 ± 10% (-110 Ma) volts Up
I/O 1 (AO)
Main Hoist Pump Control 2 C-06 81A
0 to 2.8 ± 10% (110 Ma) volts Down;
0 to -2.8 ± 10% (-110 Ma) volts Up
I/O 1 (AO)
Description Pin Wire
Test Voltage
(DC unless otherwise specified)
Board
(Signal Type)
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