ROBWAY RCI-4100, Operation And Installation

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OPERATION AND INSTALLATION
RCI-4100 SYSTEM
MAN-1111 Rev H ©Copyright 2015 LSI-Robway Pty Ltd Page 20
2.3.7.
Display Unit (Ex ib)
The RCI-4100IS Display Unit is a Group IIB Ex ib certified display which may be located in Zone 1 or
Zone 2 of a hazardous area.
The display has overall dimensions of 260mm (H) x 150mm (W) x 60mm (D), is rated to IP65, and
weighs about 3 kg. Using the mounting kit mount the RCI-4100IS display unit in a convenient position
in the crane cabin such that the operator can view the displays and reach the push buttons
comfortably.
Standard ram bracket and mounting kit comprising of bolts and nuts are provided. A special bracket
may need to be fabricated on site to enable suitable mounting in the cabin.
Note: Maximum cable display length is 10m.
Refer also to APPENDIX A, Safety and Installation Instructions, Model 4120 RCI-4100IS Display
Barrier for further information and details. Refer also Section 2.3.12 Cabling Instructions
Reference the applicable drawing(s) in APPENDIX N, System Drawings
CAUTION: CHECK ELECTRICAL CONNECTION BETWEEN THE DISPLAY ENCLOSURE
AND THE GROUNDED CRANE CHASSIS. IF A GOOD CONNECTION
CANNOT BE ENSURED THROUGH THE MOUNTING BRACKET, THEN
INSTALL AN EARTH STRAP. IT IS A CONDITION OF INSTALLATION THAT
AN EQUIPOTENTIAL CONNECTION MUST BE ENSURED BETWEEN THE
DISPLAY ENCLOSURE AND THE CONTROL UNIT ENCLOSURE (VIA THE
GROUNDED CRANE CHASSIS).
Figure 5 - Ex ib display unit and typical installation inside the cabin
2.3.8.
Hazardous Area Control Unit (if not Safe Area)
The Hazardous Area Control Unit has Ex ia and Ex ib interfaces housed in an Ex d flameproof
enclosure for Zone 1 and Zone 2 applications.
The Control Unit is certified to EEx d IIB (ATEX) with environmental protection of IP65. The enclosure
has overall outside dimensions of 371mm (H) x 371mm (W) x 233mm (D) and weighs about 18 kgs.
Wherever possible the Controller housing should be protected from direct weather. It must be
remembered that the Controller housing is not hermetically sealed. High humidity environments will
result in water vapour being drawn into the Controller housing as the system cools after turning off.
Consequent heating and cooling cycles from normal operation can result in condensation leading to
water damage. Repairing such damage is outside of the scope of LSI-Robway warranty. This
situation is rarely seen on Controller housings mounted in crane cabins.
When opening the Controller housing it is critical that any water caught in the bolt holes is not allowed
to enter the controller. This will likely lead to water damage which is not covered by LSI-Robway
warranty. Wherever possible the Controller housing should be mounted vertically to prevent moisture
pooling problems in the base of the controller.