GREER COMPANY
GREER COMPANY
GREER COMPANY
GREER COMPANY
Crane Systems
GREER COMPANY
1918 EAST GLENWOOD PLACE, SANTA ANA, CA 92705
PN W450250 Rev B 08/09/00
RCI 510 RATED CAPACITY INDICATOR OPERATOR'S MANUAL
TEL:(714) 259-9702 FAX:(714) 259-7626
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OUTLINE OF O
OUTLINE OF O
OUTLINE OF O
OUTLINE OF OP
P
P
PERATION
ERATION
ERATION
ERATION
SYSTEM COMPONENTS
SYSTEM COMPONENTS
SYSTEM COMPONENTS
SYSTEM COMPONENTS
•
MicroGuard
®
Display Unit
•
MicroGuard
®
Computer Unit
•
Pressure Transducers
•
Extension Reel with length and angle sensors
•
Anti 2-Block (ATB) switches
•
Cables
•
Installation/Operator Manuals
The MicroGuard
®
RCI 510
System is intended to aid
the crane operator by continuously monitoring the
load and warning of an approach to an overload or
Two-Block condition. Crane functions are monitored
by means of high accuracy sensors. The system
continuously compares the load suspended below the
boom head with the crane capacity chart stored in the
computer memory. At approach to overload, the
system warns by means of audible and visual alarms.
The system can be configured to cause function kick-
out by sending a signal to function disconnect
solenoids.
DISPLAY
DISPLAY
DISPLAY
DISPLAY
The operator is provided with a continuous display of:
•
Rated Load
•
Actual Load
•
Bar Graph showing Percentage of Rated Load
•
Radius of the Load
•
Boom Angle
•
Main Boom Length
•
Working Area
•
Crane Configuration
On-screen messages provide the operator with visual
warnings of conditions that occur during operation of
the system.
BOOM ANGLE SENSOR
BOOM ANGLE SENSOR
BOOM ANGLE SENSOR
BOOM ANGLE SENSOR
Boom angle is measured by means of a high-
accuracy potentiometer/pendulum assembly that is
damped to prevent overswing. It provides a voltage
proportional to boom angle. The boom angle sensor is
mounted inside the cable extension reel assembly.
EXTENSION SENSOR
EXTENSION SENSOR
EXTENSION SENSOR
EXTENSION SENSOR
The extension sensor provides an increasing voltage
proportional to the extension of the boom. A cable
attached to the boom head provides a low current
electrical path for the A2B signal
PRESSURE TRANSDUCERS
PRESSURE TRANSDUCERS
PRESSURE TRANSDUCERS
PRESSURE TRANSDUCERS
Two pressure transducers measure the pressure in
the boom hoist cylinder. The resultant Total Moment
signal is processed to provide a continuous display of
the load suspended below the point of lift.
ANTI TWO BLOCK (A2B)
ANTI TWO BLOCK (A2B)
ANTI TWO BLOCK (A2B)
ANTI TWO BLOCK (A2B)
A switch monitors the approach of the hookblock or
overhaul ball to the boom head. The switch is held in
the normal position until the hookblock or overhaul
ball raises a weight that is mounted around the hoist
rope. When the weight is raised, it causes the switch
to operate. The resultant signal is sent to the
computer via the extension reel causing the A2B
alarm to operate and function kick-out to occur.
FUNCTION KICK
FUNCTION KICK
FUNCTION KICK
FUNCTION KICK----OUT
OUT
OUT
OUT
Electrically operated solenoids disconnect the control
lever functions for boom hoist lower, telescope out,
and winch up whenever an overload or an A2B
condition occurs.
OPERATOR SETTABLE ALARMS
OPERATOR SETTABLE ALARMS
OPERATOR SETTABLE ALARMS
OPERATOR SETTABLE ALARMS
These alarms, when properly set by the operator,
define the operating range. This is achieved by
means of minimum and maximum angle, maximum
height, and/or maximum length. These alarms can be
programmed for each job site and allow the operator
to work in a defined area.
AREA ALARM
AREA ALARM
AREA ALARM
AREA ALARM
When set, this alarm permits the operator to define
the operating zone by only two set points. The use
of this method of setting results in a greatly enhanced
working area, and also clearly defines the
operating zone.
