OPERATION AND INSTALLATION
RCI-4100 SYSTEM
MAN-1111 Rev H
©Copyright 2015 LSI-Robway Pty Ltd
Page 24
2.3.13.
Earthing
Ensure that the crane boom is earthed through a grounding strap or other means and verify its
integrity.
WARNING: THE CRANE BOOM EARTHING STRAP OR OTHER EARTHING MEASURE
MUST BE IN PLACE. IF THE CRANE BOOM IS NOT EARTHED THEN A
VOLTAGE POTENTIAL MAY EXIST BETWEEN THE CABLE
SHIELDS/ARMOUR AND THE BOOM AND CREATE A SPARK SUFFICIENT
TO CAUSE IGNITION. CABLE ARMOUR OR SHIELD SHOULD NOT BE
RELIED UPON TO PROVIDE AN EARTH CONNECTION.
2.4. Switch Inputs
The RCI-4100 Control Unit has eight (8) digital switch inputs to suit specific applications and
requirements such as slew position limit switch, external duty selector switch, etc. Please refer to the
RCI System Crane Configuration Sheet in the Attachments for the list of inputs programmed in the
software to suit the specific application.
Reference the applicable drawing(s) in RCI System Configuration Documents in Attachments.
2.5. Relay Outputs
The RCI-4100 Control Unit has three (3) safety relays on board the PCB and up to another eight (8)
switching relays on the terminal block.
The safety relays have voltage-free contact rated to 5A and are only used to energise the coils of
external high-power SLAVE relays such as motion cut, slack rope detect output, boom up motion cut
(minimum radius limit), etc. Please refer RCI System Configuration Documents in Attachments s for
the list of relay outputs programmed in the software to suit the specific application.
Refer to the documents in “ATTACHMENTS, RCI System Configuration Documents”
CAUTION: PLEASE NOTE THAT ALL INDUCTIVE LOADS SUCH AS RELAYS AND
SOLENOIDS REQUIRE SNUBBER DIODES (1N5404 OR 1N4004) FOR
TRANSIENT SUPPRESSION.
2.5.1.
MOTION-CUT OUTPUT RL-1
It is recommended that the RCI-4100 motion-cut output relay (RL1) be connected to a customer fitted
‘latch-out’ relay requiring a manual reset once activated.
Thus, following motion-cut activation the ‘latch-out’ relay will sustain motion-cut output until manually
reset (provided the RCI-4100 is clear of alarm state/s).
This feature will assist to avoid dynamic situations following motion-cut, especially if activated during
luffing down operations at higher boom angles.
RCI-4100 software also has a “Time Delay for Motion Cut Return” to assist with the situations
mentioned above. The default setting is 5 seconds and can be changed to suit local conditions if
required. Refer to Section 6.29 for further details.
Summary of Contents for RCI-4100
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