Manitowoc 2250 Service Maintenance Manual

Reference Only
Manitowoc Published 07-19-16, Control # 249-01 3-19
2250 SERVICE/MAINTENANCE MANUAL ELECTRICAL SYSTEM
3
DIGITAL DISPLAY READINGS
General
The digital display and selector (see Operating Controls in
Section 3 of the Operator Manual) allow the operator to
monitor the following three groups of crane information:
• Operating conditions
• Operating limits
• System faults
Depress the top or bottom of the selector to scroll up and
down through the display readings. Release the selector
when the desired information is displayed.
To display the diagnostic operating conditions listed in Table
3-2, depress the limit bypass switch while scrolling up with
the selector. To turn off the diagnostic operating conditions,
depress the limit bypass switch while scrolling down with the
selector or turn off the cab power.
See Table 3-5
for a list of abbreviations and notes used in the
tables. See Drum Identification on page 3-27
for
identification of the drums.
NOTE: This section identifies display readings for all
modes and configurations in which the 2250 can be
used (to include MAX-ER). Therefore, some of the
display readings identified will not appear until the
corresponding mode or configuration is selected.
Also, some display readings may appear even
though the crane is not equipped with the
corresponding attachment. In these cases, the
display reading is meaningless.
Display readings for optional items are marked with
an asterisk (*).
Operating Conditions
Table 3-2 lists operating conditions that can be displayed and
the normal operating range of each.
When an operating condition is selected (such as ENGINE
SPEED), the current status of the condition is displayed (see
Figure 3-8
).
Operating Limits
Table 3-3 lists operating limits that can be displayed.
When one or more operating limit is reached, the operating
limit alert (yellow light and buzzer in cab) turns on to warn the
operator. At the same time, the operating limit display
immediately appears (see Figure 3-9
) and automatically
scrolls through the names of the limits, stopping at each for
approximately three seconds.
The operating limit alert turns off when the cause of each
limit is corrected. The name of each limit reached during
operation is retained in memory, however, until two things
happen.
1. The name of the limit appears on the display.
2. The cause of the limit is corrected.
For this reason, it is normal for the names of limits to appear
when you scroll to the operating limit group, even when the
operating limit alert is off.
To erase the names of inactive limits, scroll to the operating
limit group. Wait until the display scrolls through the name of
each limit. The names of inactive limits will be erased
automatically. If the alert is on, only the names of active limits
will remain.
NO FAULT appears on the display (see Figure 3-10
) when
there are no limits.
FIGURE 3-8
ENGINE SPEED
900 RPM
FIGURE 3-9
OPERATING LIMIT
BLOCK UP
FIGURE 3-10
OPERATING LIMIT
NO FAULT

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English