Manitowoc NTC55 User Manual

RATED CAPACITY LIMITER NTC55 OPERATOR MANUAL
7-4 Published 9-26-2018 Control # 646-02
Information and Warnings, Crane Electrical Fault
Monitoring, Hour Meter, Load Chart Part Number,
Calibration Chart Part Number and Module Input/
Output screens with Software Versions and Real-
Time Sensor information.
The Main Menu screen has function keys (Figure 7-2) that
are used to highlight and select the functions shown on the
display screen.
• The Return to Operating Mode Screen
button is only displayed if the RCL has been through
configuration and set-up. The image on the button
displays the real-time Rated Capacity Bar Graphics
status.
• The Directional button is used to highlight
and select applicable choices and navigate to
multiple screens.
• For more choices, press the right arrow
function key.
• To go back to the previous choices, press the left
arrow function key. The Back function returns
to the previous screen without saving inputs.
• The up and down arrow functions are used
to increment or decrement through inputs or screen
selections.
• The Select function key confirms the choice
that is highlighted.
• The Back button will go back 1 selection
during the RCL setup.
• The Escape function returns to the previous
screen without saving inputs.
NOTE: On start up of the RCL, the Manitowoc splash
screen and the National Crane logo screen will
appear for a few seconds each before the Main
Menu Screen appears (Figure 7-2).
NOTE: If the crane is powered up after sitting idle within a
2 hour time period, the Configuration Confirmation
Screen 9 (page 7-10) will appear first.
NOTE: If one of the RCL sensors have not been calibrated,
then the sensor calibration menu will display.
Alert and Limit Symbols
The right side of the operating screen displays active alert
and/or limit symbols. Only those limits that are set are
displayed. If there is a violation of a set limit, the symbol
flashes. In normal operation with no limits set and no alerts
active, this portion of the screen is blank.
The warning cluster on the following sample screen shows
all alert and limit symbols for illustration purposes only.
RCL Operating Mode Screen (Sample)
• RCL Capacity Warning - Continuous visual and
audible warning that a overload condition is
approaching. The operator can continue with extreme
caution.
• RCL Capacity Lockout - Continuous visual and
audible warning that an overload condition exists. The
following controls are locked out:
- Hoist Up (Main and Auxiliary)
- Boom Down
- Telescope Out
• ATB Limit is Activated - Continuous visual and
audible warning that a two-block condition exists. The
following controls are locked out:
- Hoist Up (Main and Auxiliary)
- Boom Down
- Telescope Out
RCL Override Warning
The RCL override bypasses the RCL for both overload and
ATB alerts.
• RCL Override Warning (Red) - Indicates that the
RCL is bypassed by the operator. Use extreme caution
when the RCL is bypassed.
• ATB Override Warning (Red) - Indicates that the
ATB is bypassed by the operator. Use extreme caution
when the ATB is bypassed.
8807-7
FIGURE 7-3

Manitowoc NTC55 Specifications

General

Brand	Manitowoc
Model	NTC55
Category	Construction Equipment
Language	English