1. System Installation Requirements
1-14
TI 32P01J10-01EN
Selecting a Power System
The ProSafe-RS system requires a power supply that satises power requirements in
accordance with EMC regulations. It is recommended that an external power supply unit be
used in order to prevent disruptions due to momentary or extended power failure, line noise, or
lightening surges, as well as to suppress harmonic current from various devices.
For selection of the power supply unit, consult with a power unit manufacturer taking the following
points into consideration.
Source Output Capacity
Take the following items into consideration when consulting with a power unit manufacturer to
determine the output capacity.
Power consumption: Both volt-ampere and watt data should be studied.
Device crest factor: Ratio of the peak value to the eective value of the device input
current.
Device in-rush current: The method of turning on the power should also be studied.
Backup ready time after failure: Time period required to backup the devices when power fails.
Reserve capacity: An extra power capacity should be determined as reserve to
meet any device additions.
SEE
ALSO
• Electrical Specications Table for power consumption in Chapter 4
• In-rush Current of Each Component in Chapter 4
Nov. 27, 2015-00
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