Pre-Installation Planning - Overview
Revision 19 HC900 Process Controller Installation and User Guide 37
06/14
Pre-Installation Planning
Overview
Methodical pre-planning of an installation will preclude false starts and errors that can cause costly
hardware re-configuration and/or poor system performance. Factors to consider in your pre-installation
planning include:
• C75 CPUs require the 900P02 Power Status Module
• I/O Rack can use AC Power Supply 900P01, 900P02 (see page 38) or +24DC Power Supply 900P24
(see page 39).
• Limit of 10 Analog Output modules per rack. Limit of 4 PFQ.
• Power Supply rack space (if using redundant I/O power) (see page 40)
• Rack orientation and mounting (see page 39)
• Remote Terminal Panels (see page 41)
• Environmental conditions (see page 42)
• Heat rise de-rating (see page 43)
• Cabling/wiring distance planning (see page 45)
• Electrical considerations: controller grounding, CE conformity, grouping wires, master control relay for
emergency shutdown (see page 47)
• System monitor function blocks (see page 54)
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