Control Calibration - Manitowoc 18000 Operator's Manual

18000 OPERATOR MANUAL

Control Calibration

See Figure 3-47 and Figure 3-49
The control line of the calibration screen indicates whether
the pump centers are within the allowable range of each
pump's Electric Displacement Control (EDC). The allowable
range is 5-25% pump command signal for the hoist pumps,
and 2.5-20% in each direction for the swing pump.
The controls must be calibrated at the following intervals:
• When a new controller node is installed
• When a pump is replaced
• When a pump control (EDC or PCP) is replaced
• When there is a noticeable time increase to engage a
crane function when handle is moved from off
• Every 6 months
To perform control system calibration, proceed as follows:
1. Turn PARK ON for all crane functions (drums, boom
hoist, swing, travel).
2. Start engine. It is normal for yellow operating limits light
to come on during this procedure.
3. Access calibration screen shown below as follows:
a. Select and confirm SETUP mode to activate
calibration program.
b. Turn LIMIT BYPASS switch clockwise and hold.
c. SCROLL UP at least one screen.
d. Continue to scroll up or down until calibration screen
appears.
Binary
Number
1
2
4
Manitowoc
for the following procedure.
Percent
Complete
PRESSURE SENDER CAL
* CONTROL CAL
PUMP PRESSURE TEST
CHARGE PRESSURE
Pressure Sender
(Bank 1)
Main Hoist 1
Main Hoist 2
Boom Hoist
Published 12-05-17, Control # 032-23
OPERATING CONTROLS AND PROCEDURES
e. Press bottom of CRANE MODE switch until (*)
appears next to CONTROL CAL.
f. Increase engine speed to HIGH IDLE.
Engine must be runn ing at high idle be fore
calibration will start.
Calibration will stop if engine speed is decreased
during calibration.
g. Press top end of CRANE MODE switch to
CONFIRM. Calibration will start.
h. When calibration starts, percent (%) of completion is
displayed on screen.
i. When calibration stops, check binary number:
- If 0 appears, all controls have passed
calibration.
- If any number other than 0 appears, use
3-13 to determine which controls have failed
calibration.
- Each control is assigned a number in the binary
system (power of two). After running the
calibration procedure, outputs that are ON
(failed) for any control, are added together. To
identify the failed controls, find the binary
number displayed on the screen in the first
column of Table
right of the number indicate controls that failed
calibration. Troubleshoot the particular system
to determine the cause of the fault.
4. Proceed to next procedure, or exit calibration screen by
pressing bottom of CRANE MODE switch. Cursor (*) will
disappear from screen.
Binary
Number
0% 4
Binary Pressure Sender
Number (Bank 2)
8 Swing Left
16 Swing Right
32 Luffing Hoist
Table
3-13. All shaded boxes to the
FIGURE 3-49
3-73
3