Power Supply Modules
(Cat. No. 1771-P4S, -P6S, -P6S1, -P6S1)
Installation Data
3
You can place these power-supply modules into any I/O module slot in any
current chassis (1771-A1B, -A2B, -A3B, -A4B, -A3B1, -PSC).
However, to place these power-supply modules into a superseded I/O
chassis (1771-A1, -A2, -A4), you must follow the restrictions in table B.
Table B
Placement Restrictions in Superseded I/O Chassis (1771A1, A2, A4)
Adapter or
Inchassis
processor
I/O
Chassis
1st
Power Supply
1
2nd
Power Supply
1
Without
A4
I/Oslot 0
I/Oslot 10
an integral
power supply
A2
I/Oslot 0
I/Oslot 4
power supply
A1
I/Oslot 0
not applicable
With an integral
A4
not applicable
I/Oslot 8
g
power supply
A2
not applicable
I/Oslot 3
1
I/O module slots are numbered 0 through 15, left to right.
Connect a Paralleling Cable
You can use two power supplies in the same I/O chassis to produce more
power by connecting them with a Power-Supply Paralleling Cable
(1771-CT). This connection is for communication between the two
supplies. If one supply has to shut down, it tells the second to turn off its
indicator. Although the adapter or in-chassis processor will be disabled, the
second supply will continue trying to operate until its DC output limits are
exceeded. Because the adapter or in-chassis processor is disabled,
paralleling two supplies does not provide redundancy.
To connect the paralleling cable:
1.
Connect the paralleling cable between the P/S PARALLEL
connectors on the two supplies (figure 2).
2.
Loop the paralleling cable over the top of the I/O chassis to avoid
picking up signals induced from I/O wiring.
3.
Turn on the supplies simultaneously. If you don’t, the first supply you
turn on may shut down due to an overcurrent condition.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com