Rockwell Automation SF3000 Parallel Gate Amplifier System - Manual (Page 28)

5-2 Parallel Gate Amplifier
5.2 Installing the PGA Rack
The rack is designed to be panel-mounted using M6 or 1/4"-20 screws. The holes in
the top flange have a keyhole shape and the lower holes are U-shaped to facilitate
mounting. Refer to figure 5.1 (four-slot rack) or figure 5.2 (eight-slot rack) for mounting
dimensions.
Use the following guidelines when installing the PGA rack:
• Ensure that there is enough space for the rack, wiring, terminal strips, and other
devices that must be mounted near the rack.
• Allow a large enough clearance around the rack to provide access for inspection,
maintenance, and module replacement.
• Allow 50 mm (2 in) of clearance above and below the rack for ventilation.
• Do not mount heat-generating equipment underneath the rack.
• Mount the rack in a vertical position only.
• The cabling distance between the PGA rack and the Power Module must not
exceed 18.3 m (60 ft).
• Rack surrounding air temperature must be between 0 ° C (32 ° F) and 60 ° C
(140 ° F).
• Relative humidity must be between 5 and 95% (non-condensing).
• Surrounding air must be clean and dry (e.g., free of flammable or combustible
vapors, chemical fumes, oil vapor, steam, excessive moisture, and dirt).