Rockwell Automation 1794-PS13_PS3 FLEX I/O dc Power Supply Install. Instr - Manual (Page 2)

2 FLEX I/O DC Power Supply Modules
Publication 1794-IN069D-EN-P - June 2004
Power Supply Modules, Cat. No. 1794-PS13 and -PS3
The 1794-PS13 power supply provides sufficient 24V dc power to operate 4
adapter modules. Do not attempt to operate an entire FLEX I/O system with
the 1794-PS13 power supply.
The 1794-PS3 power supply provides sufficient 24V dc power to operate 10
adapter modules. You can use this 1794-PS3 power supply to operate an entire
FLEX I/O system.
Installing Your Power Supply Module
1. Hook the lip on the rear of the power supply module onto the top of
the DIN rail, and rotate the power supply module onto the rail.
2. Press the power supply module down onto the DIN rail until flush.
Locking tab C will snap into position and lock the power supply
module to the DIN rail.
3. If the power supply module does not lock in place, use a screwdriver
or similar device to move the locking tab down while pressing the
power supply module flush onto the DIN rail, and release the locking
tab to lock the power supply module in place. If necessary, push up on
the locking tab to lock.
4. Connect the power supply wiring as shown under “Wiring” later in
this document.
Note: For panel/Wall mounting, refer to publication 1794-5.13, “Panel
Mounting Kit, Cat. No. 1794-NM1.”
Connecting Wiring
Terminals A, B and C are 120/230V ac supply terminals. Terminals D, E and F
are available to daisychain this 120/230V ac power to other 1794-PS power
supply modules. If applying 120/230V ac power to the power supply, you can
also power the corresponding 120/230V ac modules in your FLEX I/O
system.
1. Connect the 120/230V ac power to the left side terminals on the
connectors on the left side of the power supply module as follows:
2. Connect terminal G (+24V dc) to the +24V dc terminal on the first
adapter.
3. Connect terminal H (+24V dc common) to the +24V dc common
terminal on the first adapter.
4. Connections I and J are used to pass +24V dc power (G) and -24V
common (H) to the next adapter in the series (if required)
5. Repeat steps 3 and 4 using terminals I and J for the second adapter.
6. Connections D, E and F are used to pass 120/230V ac power to
adjacent 1794 power supplies, or to power any corresponding
120/230V ac modules in your FLEX I/O system.
Component Identification
1 Power Supply Module
2 Indicator
3 120/230V ac ground
4 120/230V ac common L2/N connections
5 120/230V ac power L1 connections
6 +24V dc connections
7 24V dc common connections
ATTENTION
During mounting of all devices, be sure that all debris (metal
chips, wire strands, etc.) is kept from falling into the module.
Debris that falls into the module could cause damage on power
up.
1
2
3
4
5
6
7
3
4
5
1
2
6
7
1794-PS13 1794-PS3
B
C
A
C
1794-PS13 shown
IMPORTANT
When wiring this power supply, torque terminal screws to 7
pound-inches (0.8Nm).
Connect To
ac ground GND A
120/230V ac common L2/N B
120/230V ac power L1 C
ATTENTION
The total length of wire for terminals H, I, J and G must not
exceed 3m (9.8ft). Exceeding the 3m (9.8ft) length can reduce
noise immunity.
ATTENTION
Input and output wiring must be in accordance with Class I,
Division 2 wiring methods and in accordance with the
authority having jurisdiction.
A
B
C
F
G
E D
H
I
J
Power
24V DC
POWER SUPPLY
1794-PS3
1 3
/ (
1794-PS3 shown