Rockwell Automation SLC 500 Thermocouple User manual

Power Supply
MANUFACTURER DATA SHEET
Allen-Bradley/Rockwell
1746-P1
Manufacturer:
Model Number:
PDF File: Doc_000005_Cover.pdf
See www.geomartin.com for additional PDF datasheets
Martin Part Number:
E-014624-01
VendorPartNumber:
AB # 1746-P1, Power Supply

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Publication 1746-IN004A-ML-P
SLC 500™ Power Supplies
(Catalog Numbers 1746-P1, 1746-P2, 1746-P3,
1746-P4, 1746-P5, 1746-P6, and 1746-P7)
Installation Instructions
Inside…page
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Genéralités . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
DeutscherAbschnitt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Istruzioni per l’installazione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Instrucciones de instalación . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

2SLC 500™Power Supplies
Publication 1746-IN004A-ML-P
Important User Information
Because of the variety of uses for the products described in this publication, those
responsible for the application and use of this control equipment must satisfy
themselves that all necessary steps have been taken to assure that each
application and use meets all performance and safety requirements, including any
applicable laws, regulations, codes and standards.
The illustrations, charts, sample programs and layout examples shown in this
guide are intended solely for purposes of example. Since there are many
variables and requirements associated with any particular installation, Allen-
Bradley does not assume responsibility or liability (to include intellectual
property liability) for actual use based upon the examples shown in this
publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application,
Installation, and Maintenance of Solid-State Control (available from your local
Allen-Bradley office), describes some important differences between solid-state
equipment and electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole or in part,
without written permission of Allen-Bradley Company, Inc., is prohibited.
Throughout these installation instructions we use notes to make you aware of
safety considerations:
Attention statements help you to:
• identify a hazard
• avoid the hazard
• recognize the consequences
!ATTENTION: Identifies information about practices or
circumstances that can lead to personal injury or death, property
damage or economic loss.
Important: Identifies information that is critical for successful application and
understanding of the product.

1746-IN004A-ML-P
English Section
SLC 500™ Power Supplies
(Catalog Numbers 1746-P1, 1746-P2, 1746-P3,
1746-P4, 1746-P5, 1746-P6, and 1746-P7)
Overview
Install your power supply using these installation instructions. The only tools
you require are Flat head (1/8”) and Phillips head (1/4”, #2) screwdrivers.
!ATTENTION: Electrostatic discharge can damage integrated
circuits or semiconductors if you touch backplane connector pins.
Follow these guidelines when you handle the power supplies.
• Touch a grounded object to discharge static potential.
• Do not touch the backplane connector or connector pins.
• Do not touch circuit components inside the power supply.
• If available, use a static-safe work station.
• When not in use, keep the power supplies in their static-shield
packaging.

4SLC 500™Power Supplies
1746-IN004A-ML-P
Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or
non-hazardous locations only. The following WARNING statement applies to use
in hazardous locations.
Environnements Dangereux
Cet équipement est conçu pour être utilisé dans des environnements de Classe I,
Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante
s’applique à une utilisation dans des environnements dangereux.
WARNING: EXPLOSION HAZARD
• Substitution of components may impair suitability for Class I,
Division 2.
• Do not replace components or disconnect equipment unless
power has been switched off or the area is known to be non-
hazardous.
• Do not connect or disconnect components unless power has
been switched off or the area is known to be non-hazardous.
• All wiring must comply with N.E.C. article 501-4(b).
AVERTISSEMENT: DANGER D’EXPLOSION
• La substitution de composants peut rendre cet équipement
impropre à une utilisation en environnement de Classe I,
Division 2.
• Ne pas remplacer de composants ou déconnecter
l'équipement sans s'être assuré que l'alimentation est coupée.
• Ne pas connecter ou déconnecter des composants sans s'être
assuré que l'alimentation est coupée.

SLC 500™Power Supplies 5
1746-IN004A-ML-P
Install the Chassis Interconnect Cable (Optional)
To connect up to three SLC 500™ chassis together, install the chassis
interconnect cable before installing the power supply
.
Power Supply Installation
1. Align the circuit board of the power supply with the card guides on the left
side of the chassis
.
2. Slide the power supply in until it is flush with the chassis. Then fasten the
power supply to the chassis
.
SLC 500 chassis/A
For more information, see the
SLC 500 Modular Style
Installation and Operation
Manual (publication 1747-6.2).
Use these screws to fasten the
power supply to the chassis.

6SLC 500™Power Supplies
1746-IN004A-ML-P
Power Supply Wiring
1. Place the input voltage jumper to match the input voltage. (This does not
apply to the 1746-P3, -P5, -P6, and -P7 power supplies, which do not have a
jumper.)
2. Connect the ground screw of the power supply to the nearest ground or
ground bus. Use a #14 AWG wire and keep the leads as short as possible.
The 1746-P4 is shown below. Refer to page 6 for special wiring
considerations for the 1746-P3.
!ATTENTION: Set the input jumper before applying power.
Hazardous voltage is present on exposed pins when power is
applied; contact with the pin may cause injury to personnel.
Catalog Number
1746-P1 & -P2 Catalog Number 1746-P4
Fuse
JumperSelection
Jumper Selection
100/120 Volts
200/240 Volts
85-132V ac
170-265V ac
CHASSIS GROUND
Nearest Ground Bus

SLC 500™Power Supplies 7
1746-IN004A-ML-P
3. Connect incoming power.
!ATTENTION: Turn off incoming power before connecting
wires; failure to do so could cause injury to personnel and/or
equipment.
!ATTENTION: Your SLC 500 power supply can be damaged by
voltage surges when switching inductive loads such as motors,
motor starters, solenoids, and relays. To avoid damage to your SLC
500 power supply in these applications, it is strongly reccommended
than an isolation transformer be used to isolate the power supply
from harmful voltage surges.
120/240Vac
VAC NEUT DC NEUT
+ 24V dc
JUMPER
170–265Vac
L2 NEUTRAL
L1 85–132/170–265
85–132Vac
+125Vdc
DC NEUT
CHASSISGROUND
CHASSISGROUNDCHASSISGROUND
CHASSISGROUND
CHASSISGROUND
+48Vdc
DC NEUT
CHASSISGROUNDCHASSISGROUND
DC NEUT
+ 12/24V dc
CHASSISGROUND
Catalog Number
1746-P3
Catalog Number
1746-P4
Catalog Number
1746-P5
Catalog Number
1746-P6
Catalog Number
1746-P7
Catalog Number
1746-P1 & P2
Incoming
Power
Incoming
Power
Incoming
Power
Incoming
Power
P4
Incoming
Power
P4
Jumper
Selection
Incoming
Power

8SLC 500™Power Supplies
1746-IN004A-ML-P
1746-P3 Wiring Considerations
The information below describes special wiring considerations for the 1746-P3.
!ATTENTION: Any voltage applied to the 1746-P3 DC NEUT
terminal will be present at the SLC logic ground and the processor
DH-485 port. To prevent unwanted potentials across the logic
ground of the controller and/or damage to the SLC chassis, the DC
NEUTRAL of the external DC power source must be either isolated
from the SLC chassis ground or connected to earth ground as shown
in the following illustration.
Important: SLC 500 Series A chassis (1746-A4, -A7, -A10, and -A13)
manufactured before November 1992 have a resistor between the
logic ground and chassis ground as the drawing on the following
page illustrates. This resistor could be damaged if the wiring
recommendation described within the attention box above is not
followed. See the figure on the following page for the location of
the resistor. SLC 500 Series A chassis (1746-A4, -A7, -A10, and
-A13) with a manufacture date of November 1992 or later do not
have this resistor. SLC 500 Series B chassis have a 1MΩresistor
that limits the current between logic ground and chassis ground.
+24V dc
DC Neut
+24V dc
DC Neut
DH±485
Port
•
External DC Power Source Door
1746-P3 Processor SLC 500 Chassis
SLC Logic Ground
Chassis
Ground
Earth Ground Earth
Ground
A jumper wire is
recommended between
the DCNEUTand
Chassis Ground of the
external power source.