Manitowoc 2250 - Page 175

Reference Only
Manitowoc Published 07-19-16, Control # 249-01 3-11
2250 SERVICE/MAINTENANCE MANUAL ELECTRICAL SYSTEM
3
C-35 25A Operating Limit Buzzer & Light 12 Volts Nominal I/O 2 (DO)
C-36 25B Jacking Remote Level Alarm & Light 12 Volts Nominal I/O 2 (DO)
C-37 Not Used
D-01 87MA Luffing Hoist Drum Flange Encoder CHA
7.5 Volts or 0 Volts Not Moving,
3.5 Volts Moving
I/O 1 (DI)
D-02 87MB Luffing Hoist Drum Flange Encoder CHB
7.5 Volts or 0 Volts Not Moving,
3.5 Volts Moving
I/O 1 (DI)
D-03 Not Used I/O 1 (DI)
D-04 Not Used I/O 1 (DI)
D-05 82MA Boom Hoist Shaft Encoder CHA
7.5 Volts or 0 Volts Not Moving,
3.5 Volts Moving
I/O 2 (DI)
D-06 82MB Boom Hoist Shaft Encoder CHB
7.5 Volts or 0 Volts Not Moving,
3.5 Volts Moving
I/O 2 (DI)
D-07 24 Engine RPM Sender
7.5 Volts or 0 Volts Not Moving,
3.5 Volts Moving
I/O 1 (DI)
D-08 89T3 Engine Oil Pressure Switch 12 Volts Nominal I/O 3 (DI)
D-09 89U3 Engine Coolant Temperature Switch 12 Volts Nominal I/O 3 (DI)
D-10 89P Rated Capacity Indicator/Limiter Switch 12 Volts Nominal I/O 3 (DI)
D-11 89T2 Crane Mode Confirm Switch 12 Volts Nominal I/O 3 (DI)
D-12 89B2 Swing Holding Brake On 12 Volts Nominal I/O 3 (DI)
D-13 89C2 Equalizer & Physical Boom Stop Limit Switch 12 Volts Nominal I/O 3 (DI)
D-14 68R Remote Start 12 Volts Nominal I/O 4 (DI)
D-15 89X2 Drum 2 and Drum 3 Free-Fall Safety Switch 12 Volts Nominal I/O 4 (DI)
D-16 35 RX1
RCL Display Receive (w/o master node)
w/ Master Node, Receive to Controller
Variable 6 to 7 Volts Nominal
CPU (Comm)
D-17 34 TX1
RCL Display Transmit (w/o master node)
w/ Master Node, Transmit from Controller
Variable 6 to 7 Volts Nominal
CPU (Comm)
D-18
30
RS-0
Main Display CPU Receive/Transmit Variable 6 to 7 Volts Nominal
CPU (Comm)
D-19 31 TX2 Main Display Transmit Variable 6 to 7 Volts Nominal
CPU (Comm)
D-20
30
RS-0
Main Display Receive/Transmit Variable 6 to 7 Volts Nominal
CPU (Comm)
D-21 37 RX3 MAX-ER PC Receive Variable 6 to 7 Volts Nominal
CPU (Comm)
D-22 36 TX3 MAX-ER PC Transmit Variable 6 to 7 Volts Nominal
CPU (Comm)
D-23 Not Used
D-24 87MD Luffing Hoist Motor Control
0.98 Volts to 8.01 Volts: 0% to 100%
Motor Command
I/O 1 (AO)
D-25 81MD Main Hoist Motor Control (Sauer-Danfoss)
0.98 Volts to 8.01 Volts: 0% to 100%
Motor Command
I/O 2 (AO)
D-26 Not Used I/O 3 (DO)
D-27 82N Boom or Luffing Hoist Rotation Indicator 12 Volts Nominal
I/O 3 (DO)
D-28 68KB Engine Throttle 12 Volts Nominal
I/O 3 (DO)
D-29 Not Used
I/O 3 (DO)
D-30 Not Used I/O 3 (DO)
D-31 Not Used I/O 3 (DO)
Pin Wire Description
Test Voltage
(DC unless otherwise specified)
Board
(signal type)