GE IC698CHS017/117 Racks, 17-slot, Front and Rear Mount

GE IC698CHS017/117 Racks, 17-slot, Front and Rear Mount

OVERVIEW

The RX7i rack can be used for all RX7i CPU and I/O configurations, Series 90™-70 I/O, and VME modules. Backplane connectors are spaced on 0.8" (20.3mm) centers to accommodate single-width RX7i modules, VME modules, and single-width Series 90-70 modules. Double-width Series 90-70 modules use two slots each. The rack accepts a power supply in slot 0 and a CPU in slot 1. The RX7i CPUs with Ethernet daughter card are double-width modules and use slots 1and 2. The remaining slots can be used for one of the following I/O combinations: 

fifteen single-width modules (with no doublewidth modules installed), 

eight double-width modules, or 

a combination of double-width and single-width modules.

Rack Mounting

RX7i racks are considered open equipment, and therefore must be installed in a protective enclosure rated IP54 or greater.

Overall rack dimensions are 11.15"H x 19"W x 7.5"D (283 x 483 x 190mm).

Note: If your installation includes a fan assembly, a minimum clearance of 23cm (9 inches) between RX7i racks is recommended so that an individual fan can be removed and replaced.

The rack must be mounted in the orientation shown in the following figures. Sufficient space must be left around the rack to allow air flow for module cooling.

Mounting requirements (front or rear mount) must be determined according to the application. Mounting flanges are an integral part of rack side panels. These racks accommodate two module types:

Rack-type RX7i and Series 90-70 single-width I/O modules, which use a detachable field wiring terminal board. Each I/O module accepts up to forty AWG #14 (2.10 mm2 ) wires. The wire bundle is routed out the bottom of the terminal board cavity where a cleat is provided for a tie wrap to secure the bundle to the terminal board housing. 

VME modules, which have varying methods of connecting to field devices.

Shield Ground

RX7i Modules

The power supply, CPU, and all RX7i modules have metal faceplates that are screwed directly to the enclosure at the top and bottom to ensure the faceplate is grounded to frame ground.

Series 90-70 Modules

Some Series 90-70 I/O modules have a ground clip that contacts the conductive bottom rail when the module is fully inserted. Shield connections in the user connectors are routed to this ground clip through conductors on the module.

Slot Addressing

I/O point references for modules in an RX7i rack are configured using the CIMPLICITY® Machine Edition Logic Developer-PLC software. For information on configuration, see the software online help and the CIMPLICITY Machine Edition Logic Developer-PLC Getting Started manual, GFK-1918.

Features

Provides slot sensing for rack-type I/O modules. No jumpers or DIP switches on the I/O modules are required for addressing of these modules. 

Provides automatic daisy chaining of interrupt acknowledge and bus grant signals so no blank slot jumpers are required. 

Provides J2 backplane connectors to allow high-speed VME transfers of up to 64 data bits per cycle. 

Accepts plug-in RX7i AC power supplies 

Supports higher wattage power supply for high-current configurations. 

Supports an optional cooling fan assembly (required for IC698CPE020 or IC698CRE020).

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