OPERATING CONTROLS AND PROCEDURES 2250 OPERATOR MANUAL
3-62
Published 06-24-16, Control # 241-01
DIAGNOSTIC DISPLAY
General
To activate the diagnostic display screens, turn the limit
bypass switch clockwise and scroll up at least one screen.
Once this step is performed, you can scroll up and down
through the diagnostic display screens in addition to the
normal operating screens. To deactivate the diagnostic
display screens, turn the limit bypass switch clockwise and
scroll down at least one screen. The normal operating
screens will remain active.
The diagnostic display screens provide information about the
status of all main crane components as well as the controller
inputs and outputs during operation. The diagnostic display
screens contain the following:
• Information about a particular crane function (drums 1
through 9, Crane Swing, Track, Accumulator, and
MAX-ER 2000)
• Digital outputs (D1) from the controller, digital inputs
(D2) to the controller, control handle inputs (A1) to the
controller, and the programmer’s screen (A2)
NOTE: See Figure 3-41
for drum identification and
Figure 3-53
for drum and pump identification.
Drums 1, 2, and 3 (crane load drums)
1. Handle command in percent from neutral—For certain
operating conditions, this is set to neutral by the
controller even if the handle is not in neutral:
+ = Raise
- = Lower
2. Pump command in percent from neutral:
+ = Raise
- = Lower
3. Motor command in percent:
0% = Maximum displacement
100% = Minimum displacement
4. Measured drum speed in rpm:
+ = Raise
- = Lower
5. Command to park brake:
1 = Release
0 = Apply
6. Command to clutch:
1 = Disengage
0 = Engage
7. Measured pump system pressure (port A) in psi
8. Measured pump charge pressure in psi
NOTE: X = Corresponding drum number.
Drum 4 (boom hoist)
1. Handle command in percent from neutral—For certain
operating conditions, this is set to neutral by the
controller even if the handle is not in neutral:
+ = Raise
- = Lower
2. Pump command in percent from neutral:
+ = Raise
- = Lower
3. Motor command in percent:
0% = Maximum displacement
100% = Minimum displacement
4. Measured drum speed in rpm:
+ = Raise
- = Lower
5. Command to park brake:
1 = Release
0 = Apply
6. Measured pump system pressure (port B) in psi
NOTE: X = Corresponding drum number
DRUM
X
1
5
2
6
3 4
78
FIGURE 3-42