NetNathan
Lifetime Supporting Member
......Though this might be an interesting question....
In my existing standard control system....
I am currently using a 2KVA APC Surta UPS (120VAC output):
1. To supply clean power to PC, Instrumentation, PLC...etc.
2. Ability to save data during power fluctuations, or power failure for as long as UPS battery lasts
On UPS power during runtime and power failure:
HMI/Scada System:
17" panel monitor
Dell XE2 PC
Instruments:
Temperature Controller
Temperature High Limit
Vacuum Controller
Panel Devices:
Power to PLC PS
Power to PLC Digital Inputs (only when on UPS). (Digital Outputs are not under UPS power)
2.5 Amp / 24 VDC PS (for PLC back plane, Analog I/O and Ethernet Switch)
NOW the question...
Would you, or do you, use an "Online" or the more common "Offline" type UPS?
I have been using "Online" under idea of the better prevention of any noise or power dip during an "Offline" UPS switching over to battery power.
But.... An Online UPS is over double the price than a standard "Offline" ups.
In my existing standard control system....
I am currently using a 2KVA APC Surta UPS (120VAC output):
1. To supply clean power to PC, Instrumentation, PLC...etc.
2. Ability to save data during power fluctuations, or power failure for as long as UPS battery lasts
On UPS power during runtime and power failure:
HMI/Scada System:
17" panel monitor
Dell XE2 PC
Instruments:
Temperature Controller
Temperature High Limit
Vacuum Controller
Panel Devices:
Power to PLC PS
Power to PLC Digital Inputs (only when on UPS). (Digital Outputs are not under UPS power)
2.5 Amp / 24 VDC PS (for PLC back plane, Analog I/O and Ethernet Switch)
NOW the question...
Would you, or do you, use an "Online" or the more common "Offline" type UPS?
I have been using "Online" under idea of the better prevention of any noise or power dip during an "Offline" UPS switching over to battery power.
But.... An Online UPS is over double the price than a standard "Offline" ups.
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