Allen-Bradley SLC 500 User manual

Publication 1746-IN004B-EN-P - March 2008
Installation Instructions
SLC 500 Power Supplies
Catalog Numbers 1746-P1, 1746-P2, 1746-P3, 1746-P4, 1746-P5, 1746-P6,
1746-P7
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2Installation Instructions
Publication 1746-IN004B-EN-P - March 2008
Important User Information
Solid state equipment has operational characteristics differing from those of electromechanical equipment.
Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication
SGI-1.1 available from your local Rockwell Automation sales office or online at
http://literature.rockwellautomation.com) describes some important differences between solid state
equipment and hard-wired electromechanical devices. Because of this difference, and also because of the
wide variety of uses for solid state equipment, all persons responsible for applying this equipment must
satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many
variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot
assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WARNING Identifies information about practices or circumstances that can cause an explosion in
a hazardous environment, which may 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.
ATTENTION Identifies information about practices or circumstances that can lead to personal injury
or death, property damage, or economic loss. Attentions help you to identify a hazard,
avoid a hazard, and recognize the consequences.
SHOCK HAZARD
Labels may be on or inside the equipment, for example, a drive or motor, to alert
people that dangerous voltage may be present.
BURN HAZARD
Labels may be on or inside the equipment, for example, a drive or motor, to alert
people that surfaces may reach dangerous temperatures.

Publication 1746-IN004B-EN-P - March 2008
Installation Instructions
SLC 500 Power Supplies
Catalog Numbers 1746-P1, 1746-P2, 1746-P3, 1746-P4, 1746-P5, 1746-P6,
1746-P7

4Installation Instructions
Publication 1746-IN004B-EN-P - March 2008
ATTENTION
!
Environment and Enclosure
This equipment is intended for use in a Pollution Degree 2
industrial environment, in overvoltage Category II applications
(as defined in IEC publication 60664-1), at altitudes up to
2000 m (6561 ft) without derating.
This equipment is considered Group 1, Class A industrial
equipment according to IEC/CISPR Publication 11. Without
appropriate precautions, there may be potential difficulties
ensuring electromagnetic compatibility in other environments
due to conducted as well as radiated disturbance.
This equipment is supplied as open type equipment. It must be
mounted within an enclosure that is suitably designed for those
specific environmental conditions that will be present and
appropriately designed to prevent personal injury resulting from
accessibility to live parts. The interior of the enclosure must be
accessible only by the use of a tool. Subsequent sections of this
publication may contain additional information regarding
specific enclosure type ratings that are required to comply with
certain product safety certifications.
See NEMA Standards publication 250 and IEC publication
60529, as applicable, for explanations of the degrees of
protection provided by different types of enclosure. Also, see
the appropriate sections in this publication, as well as the
Allen-Bradley Industrial Automation Wiring and Grounding
Guidelines, publication 1770-4.1, for additional installation
requirements pertaining to this equipment.

Installation Instructions 5
Publication 1746-IN004B-EN-P - March 2008
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.
Hazardous Location Considerations
Products marked CL1, DIV 2, GP A, B, C, D are suitable for use in Class I, Division
2, Groups A, B, C, D or nonhazardous locations only. Each product is supplied with
markings on the rating nameplate indicating the hazardous location temperature
code. When combining products within a system, the most adverse temperature
code (lowest T number) may be used to help determine the overall temperature
code of the system. Combinations of equipment in your system are subject to
investigation by the local authority having jurisdiction at the time of installation.
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.
•Use a static-safe work station, if available.
•Keep the power supplies in their static-shield packaging
when not in use.
IMPORTANT If the equipment is not installed and used as described in this
manual, the protection provided by the equipment may be
impaired.
WARNING
!
EXPLOSION HAZARD
•Do not disconnect equipment unless power has been
removed or the area is known to be nonhazardous.
•Do not disconnect connections to this equipment unless
power has been removed or the area is known to be
nonhazardous. Secure any external connections that mate
to this equipment using screws, sliding latches, threaded
connectors, or other means provided with this product.
•Substitution of components may impair suitability for Class
I, Division 2.
•All wiring must comply with N.E.C. article 501-4(b).

6Installation Instructions
Publication 1746-IN004B-EN-P - March 2008
Environnements dangereux
Les produits marqués « CL 1, DIV 2, GP A, B, C, D » ne conviennent qu’à une
utilisation en environnements de Classe I, Division 2, Groupes A, B, C, D
dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa
plaque d’identification qui indiquent le code de température pour les
environnements dangereux. Lorsque plusieurs produits sont combinés dans un
système, le code de température le plus défavorable (code de température le plus
faible) peut être utilisé pour déterminer le code de température global du système.
Les combinaisons d’équipements dans le système sont sujettes à inspection par les
autorités locales qualifiées au moment de l’installation.
WARNING
!
DANGER D’EXPLOSION
•Coupez l’alimentation ou vérifiez que l’environnement est
classé non dangereux avant de débrancher l’équipement.
•Coupez l’alimentation ou vérifiez que l’environnement est
classé non dangereux avant de débrancher les connecteurs.
Fixez tous les connecteurs externes reliés à cet équipement
à l’aide de vis, loquets coulissants, connecteurs filetés ou
autres moyens fournis avec ce produit.
•La substitution de composants peut rendre cet équipement
impropre à une utilisation en environnement de Classe I,
Division 2.
•Le câblage doit être conforme à l’article 501-4(b) du code
national de l’électricité aux Etats-Unis et aux
réglementations locales en vigueur.

Installation Instructions 7
Publication 1746-IN004B-EN-P - March 2008
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 Hardware Style User
Manual, publication 1747-UM011.
Use these screws to fasten the power supply
to the chassis with 1.2 Nm (11 lb-in) torque,
max.

8Installation Instructions
Publication 1746-IN004B-EN-P - March 2008
Power Supply Wiring
1. Place the input voltage jumper to match the input voltage. (This does not
apply to the 1746-P3, 1746-P5, 1746-P6, and 1746-P7 power supplies, which
do not have a jumper.)
TIP For more information on wiring, see Allen-Bradley
Programmable Controller Grounding and Wiring Guidelines,
publication 1770-4.1.
Refer to publication 1746-IN016, for chassis installation and
grounding requirements.
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.
WARNING
!
If you connect or disconnect the wiring to the terminal
blocks or if you insert or remove the power supply while
power is on, an electrical arc can occur. This could cause
an explosion in hazardous location installations. Be sure
that power is removed or the area is nonhazardous
before proceeding.
Catalog Numbers
1746-P1 & 1746-P2 Catalog Number 1746-P4
Fuse
Jumper Selection
Jumper Selection
100/120 Volts
200/240 Volts
85-132V ac
170-250V ac

Installation Instructions 9
Publication 1746-IN004B-EN-P - March 2008
2. Connect the ground screw of the power supply to the nearest ground or
ground bus. Use a 1.68 mm (#14 AWG) 75°Copper wire (Category 1 per
Industrial Automation Wiring and Grounding Guidelines, publication
1770-4.1) and keep the leads as short as possible. The 1746-P4 is shown
below.
3. Refer to page 11 for special wiring considerations for the 1746-P3.
4. Connect incoming power. See illustration on page 10.
ATTENTION
!
Turn off incoming power before connecting wires;
failure to do so could cause injury to personnel and/or
equipment.
Use 1.68 mm (#14 AWG) Copper wire. Tighten terminal
screws to 0.8 Nm (7 lb-in).
Chassis Ground
Nearest Ground Bus
Tighten terminal screws to
0.8 Nm (7 lb-in).

10 Installation Instructions
Publication 1746-IN004B-EN-P - March 2008
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, use an isolation transformer to
isolate the power supply from harmful voltage surges.
120/240V ac
VAC NEUT DC NEUT
+ 24V dc
JUMPER
170–250 V ac
L2 NEUTRAL
L1 85–132/170–250
85–132V ac
+125V dc
DC NEUT
CHASSIS GROUND
CHASSIS GROUNDCHASSIS GROUND
CHASSIS GROUND
CHASSIS GROUND
+48V dc
DC NEUT
CHASSIS GROUNDCHASSIS GROUND
DC NEUT
+ 12/24V dc
CHASSIS GROUND
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