ROBWAY RCI-4100, Эксплуатация и установка

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Hook Height and Winch Speed Monitoring RCI1550 Display Option
MAN-1111 Rev H ©Copyright 2014 LSI-Robway Pty Ltd Page 184
THEORY
The system operates as follows:
• Two inductive proximity switches are bolted alongside the main hoist winch drum with ferrous
targets welded to the winch drum in quadrature formation.
• Two inductive proximity switches are bolted alongside the aux hoist winch drum with ferrous
targets welded to the winch drum in quadrature formation.
• The two signals from each winch drum are cabled back to the RCI-4100 controller quadrature
digital inputs. The up/down counting is done in the 4100 controller on-board CPLD logic
which the application software reads with every software cycle.
• The application software has function codes to allow the hook height readings to be calibrated
through the DISRCI4100 Display. Calibration MUST be performed in meters.
• The application software computes the hook height and winch speed based on winch rotation,
boom angle, and calibration data.
• Data is transmitted to the DISRCI1550 display via an RS-485 data link.
• The DISRCI1550 Display is hard-coded to display hook height in meters and winch speed in
meters per minute.
NOTE
The system uses incremental encoders. If the crane is operated with the RCI-4100 powered off
then each hook zero setting will need to be reset.
NOTE The payout counting algorithm and calibration does not take into account the winch drum
number of layers and wraps per layer so there will be some non-linearity and inaccuracy due to
this. The boom angle is factored into the calculation but there may be a slight difference in the
zero point between high boom angle and low boom angle.
SYSTEM COMPONENTS REQUIRED
The components required for adding Hoist Winch Monitoring capability to the 4100 are identified in the
following table:
LSI-Robway Supply
Qty Order Code Description Location
1 DISRCI1550 Display Crane Cabin
1 CABD2091/10M Cable Assembly, Display to 4100 controller Crane Cabin
4 SWIPROX12 Proximity Switch, NPN, Normally open, 5m cable Hoist Winch
2 JUNBOX4320-8-1 Junction Box, Hoist Winch Proximity switches Hoist Winch
2 CABSHLD4C10-15M Cable Assembly, Junction box to 4100 controller Hoist Winch
Customer Supply
Customer must supply inductive targets and mounting brackets for proximity switches and junction boxes.