Allen-Bradley PLC-2/30 - 1777 P2 Auxiliary Power Supply; 1771 P7 Power Supply

Hardware Considerations
Chapter 2
211
The 1777-P2 Series C power supply provides 9 amperes to power one or
two bulletin 1771-I/O chassis. This includes the I/O adapter and the I/O
modules in each chassis. The power supply must be used to power the
1772-SD2 distribution panel when the PLC-2/30 processor contains a core
memory module.
This power supply may be operated from either a 120 or a 220/240V AC
source.
These power supply modules provide 5V DC for an I/O chassis. The -P3
and the -P4 operate on 120V AC; the -P5 operates on 240V DC. The -P3
supplies up to 3 amperes to an I/O chassis; the -P4 and -P5 supply up to 8
amperes to an I/O chassis.
You may place one of these modules in any slot of a Series B 1771
Universal I/O chassis except the adapter/processor slot. Follow the
recommendation of the Power Supply Considerations section of
publication no. 1771-2.111 when locating these modules in a
1771 Series B I/O chassis.
Full specifications are in publication no. 1771-2.111.
The 1771-P7 power supply provides 16 amperes to power one bulletin
1771 I/O chassis. This includes the adapter and the I/O modules in the
chassis.
This power supply may be operated from either a 120 or a 220/240V AC
source.
NOTE: The 1771-P7 power supply may not be used in conjunction with a
slot power supply.
The 1771-PSC provides 4 slots for mounting modular power supplies to
provide up to 16 amperes to a 1771 Series B Universal I/O chassis. It can
also be used to mount communication modules that need only +5V DC and
a processor enable signal.
The power supply chassis may be mounted separately (when used with
communications modules) or mounted directly to 1771-A1B, A2B or A4B
I/O chassis (when supplying additional backplane current and/or when
supporting communications modules).
2.12.2
1777P2
Auxiliary Power
Supply
2.12.3
1771P3, P4, and P5 Slot
Power Supplies
2.12.4
1771P7 Power Supply
2.12.5
1771PSC Power Supply
Chassis
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