Smart Parallel Operation - Helios ICT Platinum Series Instruction Manual

4. SMART PARALLEL OPERATION

If your load requires more power than can be supplied by a single
ICT Platinum Series power supply, two or more power supplies
(maximum 6) of the same output voltage rating can be connected in
parallel in a Primary-Secondary configuration to increase the power
available, using the SHARE ports on the back of the units.
WARNING!
Do not use the Battery Backup/LVD option "BAT" terminal on
units connected in parallel, as there is a risk that the potential
current could be higher than the rating of the internal low
voltage disconnect relay.
Otherwise damage to the unit, load, and/or personal injury may
occur if the battery output current through the BAT terminal
exceeds the rating for an individual supply.
CAUTION!
Do not connect power supplies of different output voltage
ratings in parallel, as this may cause damage to equipment or
connected load.
Up to six power supplies of the same output voltage rating can be
connected in parallel to provide up to six times the total output power
capability of a single unit. An optional bus bar set (ICT-PAR) is
available to simplify connection of two units in parallel. When
multiple power supplies are operating in parallel, they should all be
connected together through the RS485 SHARE interface ports
(located on the back panel) using optional ICT-JMP jumper cables.
This will allow the units to share output current more equally, and
allow for the external network connection of the combined units using
a single Ethernet port on the Primary. One of the units will operate as
a Primary, and the remaining units are Secondaries, with the
combined settings controlled by the Primary.
Each Secondary unit displays its own output current and voltage on
the System Status screen in its Control Panel menu.
If you are running a single, standalone power supply, the Parallel
Mode setting must be set to Standalone.
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