
TILT SENSING OPTION
MAN-1111 Rev H
©Copyright 2015 LSI-Robway Pty Ltd
Page 159
OPERATION
OVERVIEW
The RCI-4100 system may be fitted with an optional dual-axis tilt sensor which may be used to
monitor the tilt of a crane in any direction. Software revision is required to add a tilt sensor to an
installed RCI-4100 system.
The RCI-4100 displays the tilt in degrees on the lower right hand side of the alphanumeric
screen.
THEORY OF OPERATION
The dual-axis tilt sensor is mounted in the bottom of the RCI-4100 controller housing and is zeroed
at time of installation. The sensor scaling parameters are hardcoded in the RCI-4100 firmware
thus no calibration other than zeroing of the sensor at installation is required.
Only one number is reported for the Tilt of the crane structure. The Tilt value reported is the
absolute value of the tilt in any direction. The Tilt value is calculated by trigonometrically summing
the X and Y axis tilt magnitudes. Thus if the tilt of the crane is 10 degrees in any direction
throughout a 360 degree range the X and Y output signals will be converted to vectors and
summed. This means that the orientation of the sensor in the X and Y axis is not important, only
the initial level when it is zeroed.
The RCI-4100 will generate an alarm when the alarm threshold is exceeded which varies with Duty
Selection. These alarm thresholds are 2.5 degrees and 5 degrees. No motion-cut output signals
are activated when the alarm threshold is exceeded.
COMPONENTS REQUIRED
The components required for adding the Tilt Monitoring capability to the RCI-4100 are identified in
the following table:
Qty
Order Code
Description
Location
1
TILTSENKUB5V-10
Tilt Sensor, Dual Axis, ±10 degrees.
Controller Enclosure
3
TER280520
DIN terminals, See G/A DWG xxxx
Controller DIN Rail
1
WAxxxxxx
Tilt Monitoring Software functionality
Firmware
1
N/A
G/A Drawing XXXX
N/A
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