Allen-Bradley 1771-P2 Bedienungsanleitung

9pin plugs

1771CE or CD cable

19568

Labels on each plug

identify proper connection.

Auxiliary Power Supply

(Cat. No. 1771-P2)

Installation Data

This document provides information on:

preparing to install the power supply

installing the power supply

connecting ac power to the power supply

power supply output

troubleshooting

specifications

The auxiliary power supply can power one bulletin 1771 I/O chassis

when used with an adapter module, a 1772 Mini-PLC-2processor, or a

1772 Mini-PLC-2/15processor.

The auxiliary power supply does not provide battery backup. For battery

backup, use a system power supply (cat. no. 1771-P1).

If You Are Mounting the Power Supply: Use this Power Cable (Cat. No.):

on the left side of the chassis 1771CE

within 5 cablefeet of the I/O chassis 1771CD

If you mount the power supply on the left side-plate of the I/O chassis,

mount the I/O chassis first (if you have not already done so). See the

Universal I/O Chassis Installation Data (publication 1771-2.210) for

information on mounting the I/O chassis.

When mounted separately, the power supply can be mounted above or next

to the I/O chassis. It can not be mounted below since it is necessary to

allow convection cooling of both the power supply and the I/O chassis.

A minimum vertical distance of six inches should be maintained.

To the Installer

Prepare for Installation

Install the Power Supply and

Connect Backplane Power

Installation Data

Auxiliary Power Supply

Cat. No. 1771P2

Mount the Power Supply

ATTENTION: If you do not remove system power, you could

damage the module circuitry and/or cause undesired operation

with possible injury to personnel.

1. Remove system power.

2. Mount the power supply.

If Mounting Separately: If Mounting on Left Side of Chassis:

use the rear flanges

to mount it to a panel.

Mount the power supply up to 5 cablefeet

from the I/O chassis.

11.25"

(285mm)

263mm

(10.37")

Depth is 182mm (7.16")

116mm

(4.56")

45mm

(1.8")

12593-I

Important: Do not mount the power supply below

the I/O chassis.

19569

Use the four screws supplied with the I/O chassis

to install the power supply onto the I/O chassis.

flat washer

screw

Important: Place the flat washers provided between each mounting

screw and the power supply. If you do not use the flat washers, the

mounting screw intrudes into the I/O chassis and interferes with

module insertion.

120V ac

EQUIP

. GND

SPARE

220/240V ac

120V ac

SPARE

120V

Operation

11939

EQUIP.

GND

SPARE

220/240V ac

120V ac

SPARE

220/240V

Operation

metal jumper

120V ac

ac line

120 V ac 1A SB

220/240 V ac 0.5A SB

Installation Data

Auxiliary Power Supply

Cat. No. 1771P2

Before connecting ac power to the power supply, you must:

check the input voltage

check the fuse protection

Check the Input Voltage

The power supply is factory-shipped for 120V ac operation. You can use:

120V ac

220/240V ac

Two metal jumpers are installed on the front terminal strip at the positions

indicating 120V ac.

ATTENTION: Be sure the power supply is correctly jumpered

for either 120V ac or 220/240V ac. Incorrect jumpering on the

terminal strip may cause improper operation or damage to the

power supply.

If you are using the power supply for 220/240V ac operation, remove both

metal jumpers on the terminal strip from their original 120V positions.

Install one of these jumpers at the terminal labeled 220/240V ac.

Check the Fuse Protection

The power supply is protected from overcurrent at its inputs by a

slow-blow fuse. The power supply comes with one 1A slow-blow fuse

installed for 120V operation. If you are using the power supply for

220/240V operation, remove the 1A fuse and replace it with the 0.5A

slow-blow fuse that is provided. Replacement fuses are shown below:

Input Voltage Fuse Manufacturer's No.

120V ac 3AG

Bussman: MDL 1A

Littelfuse: 313001

220/240V ac 3AG

0.5A

Bussman: MDL 0.5A

Littelfuse: 313.500

A replacement fuse kit (cat. no. 1771-FP) containing both 1A and 0.5A

fuses is available. Contact your local Allen-Bradley representative for

further information.

Connect AC Power

Installation Data

Auxiliary Power Supply

Cat. No. 1771P2

Nominal Input Voltage/Current 120V ac @ .75A

220/240V ac @ .38A

Input for 120V operation

Voltage Range for 220/240V operation

98132V ac

196250V ac

Input Power real

apparent

65W @ full load

90VA @ full load

External Transformer (if used) 160VA @ full load

Frequency Range 60/50Hz

Isolation Voltage 2500V dc for 1s

1800V rms for 1s input power to equipment/chassis ground

Output logic circuitry

Voltage memory

5.1V dc ±5%

Output Current 6.5A maximum @ 5V dc

Power Loss Time Delay 

Input Power Loss to Processor Disable

13.5ms ±2.5ms

Replacement for 120V operation

Fuses for 220/240V operation

1A, 3AG (slow blow); Bussmann MDL 1  Littelfuse 313001

0.5A, 3AG (slow blow); Bussmann MDL 0.5  Littelfuse 313.500

Weight 5.89 kg (13 lbs)

Dimensions (W x H x D) 11.6cm x 28.6cm x 18.2cm

(4.56" x 11.25" x 7.16")

Environmental Operating Temperature

Conditions: Storage Temperature

Relative Humidity

0 to 60°C (32 to 140°F)

40 to 85°C (40 to 185°F)

5 to 95%, noncondensing

Location left side of 1771 I/O chassis or 5 cablefeet from I/O chassis

Cables 1771CD

1771CE

1.52m (5 ft)  connects I/O chassis to panel mounted 1771P2

.30m (1 ft) - connects I/O chassis to chassis mounted 1771P2

Use these graphs to determine your:

cooling requirements

power cost

transformer size (unless the transformer manufacturer has a

recommended multiplier for sizing a transformer for an ac-to-dc power

supply)

0 25 50 75 100

0 20 40 60 80

Apparent Power (VA) Real Power (Watts)

Backplane

Load Current

(Amps)

0 50 100 150 200

Transformer Sizing (VA) =

Real Power (Watts) x 2.5

PLC-2 and PLC-2/15 are registered trademarks of Allen-Bradley Company, Inc.

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