Installing Power Supply Modules - Emerson PACSystems VersaMax User Manual

PACSystems VersaMax Genius Network Interface User Manual
GFK-1535D
Power Sources for Single-Ended Expansion Rack
Systems
When operating the system in single-ended mode, the power supplies for
the main rack and expansion rack must be fed from the same main
power source. The main rack and expansion racks cannot be switched ON
and OFF separately; either both must be ON or both must be OFF for
proper operation.
Power for module operation comes from the Power Supply installed on
the Expansion Receiver Module. If the expansion rack includes any Power
Supply Booster Carrier and additional rack Power Supply, it must be tied
to the same source as the Power Supply on the Expansion Receiver
Module.
2.7

Installing Power Supply Modules

Power supply modules install directly onto the NIU module, Expansion
Receiver Modules, and supplementary power supply carriers. The power
supply provides +5 V and +3.3 V to downstream modules through the
mating connector. The number of modules that can be supported
depends on the power requirements of the modules. Additional booster
power supplies can be used as needed to meet the power needs of all
modules. The configuration software provides power calculations with a
valid hardware configuration. If a rack includes more than one power
supply, additional power supplies must be installed so that they can be
turned at the same time as the main power supply.
Figure 23: Power Supply Installation
1. The latch on the power supply must be in the unlocked position.
2. Align the connectors and the latch post and press the power
3. Turn the latch to the locked position to secure the power supply.
Installation
supply module down firmly, until the two tabs on the bottom of
the power supply click into place. Be sure the tabs are fully
inserted in the holes in the bottom edge of the NIU, ERM, or
carrier.
Section 2
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