Rockwell Automation 1797-PS1N User Manual

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Page 1

Installation Instructions

FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

Catalog Number 1797-PS1N

Top ic Page

Important User Information 2

About the Power Supplies 3

Understand System Planning 4

Electrostatic Charge 6

Outputs 6

Mount the 1797-PS1N Power Supply 7

Customer Connections 8

Mounting Dimensions and Termin

797-PS1N

Repair 9

FLEX Ex Power Supply - 1797-PS1N 10

UL, C-UL I/O Entity Parameters 12

FM I/O Entity Parameters 15

Ferrite Beads 18

al Base Assignments for the

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2 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

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 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 consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illust 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 Auto information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole of Rockwell Automation, Inc., is prohibited.

Throughout this manual we use notes to make you aware of safety

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.

Identifies information that is critical for successful application and understanding of the product.

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence

http://literature.rockwellautomation.com) describes

respon

sible or liable for indirect or

rative purposes.

tion, Inc. with respect to use of

or in part, without written permission

considerations.

Publication

Labels may be on or inside the equipment to alert people that dangerous voltage may be present.

Labels may be on or inside the equipment to alert people that surfaces may be dangerous temperatures.

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FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 3

ATTENTION

40468

1797-PS1N

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 enclosed equipment. It should not require additional system enclosure when used in locations consistent with the enclosure type ratings stated in the Specifications section of this publication. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings, beyond what this product provides, that are required to comply with certain product safety certifications.

About the Power Supplies

The power supply is an essential component in the operation of an intrinsically safe system. It must isolate the unsafe incoming power from the control system and limit the available energy to IS-safe levels.

No other power sources are needed to operate any components attached to

EX Ex system in the hazardous area. Power for valves, actuators, or

the FL transmitters come from the FLEX Ex modules.

The 1797-PS1N is a 85…250V ac in/quad-Ex dc

t power supply in an explosion-proof enclosure with 1 in. conduit pipe-thread input/output terminations.

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4 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

Features include the following:

• 85…250V ac supply source

• Four channels, 8.5 W output each channel

• Outputs are IS galvanically isolated from the source

• All channels are independently IS limited

Understand System Planning

Part of system planning is determining what modules are needed for the application, how many power supplies are needed, how to best partition the system, and where to locate the system cabinets.

A key task in the development cycle is determining the number of power

pply

outputs (thus power supplies) you will need. In the following example,

su you will need eleven power outputs if you are using the fiber hub, which

requires 8.5 W as shown below.

Modules Requires Modules Requires

Fiber hub 8.5 W Two thermocouple inputs 1.6 W each

Two ControlNet adapters 8.5 W each Two digital outputs 7.5 W each

Two analog inputs 7.5 W each Three NAMUR digital inputs 2.8 W each

Two analog outputs 6.3 W each Two counter inputs 4.25 W each

Each power supply has four independent IS power outputs capable of 8.5 W

h. In the above example, we required 11 IS power outputs so 3 power

eac supplies were sufficient.

The total number of power supplies needed depends on the modules used and the total

system configuration. The following illustration shows how this

example may be configured.

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Page 5

IMPORTANT

IS Pwr

Safe Area

Hazardous Area

1797 power supply

ACNR

Spare

IE8 OE8 IRT8 Spare Spare IJ2 IJ2

ACNR OB4 OB4D IBN16 IBN16 IBN16 IE8 IRT8 OE8

RPA RPFM RPFM

IS 1797 I/O

IS 1797 Fiber Hub

IS Pwr IS Pwr IS Pwr

IS Pwr IS Pwr IS Pwr IS Pwr

43475

Unsafe Power Entrance

Spare

Unsafe Power Entrance

41307

FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 5

Even though modules may be supplied with power from the same power supply output channel, galvanic isolation in the module provides module-to-module galvanic isolation. Depending upon the module type, galvanic isolation (channel-to-channel within the module) may or may not be provided. See the module’s specifications for more information.

Make certain that you only connect intrinsically-safe power supplies to other intrinsically-safe system modules or adapters to maintain the integrity of the intrinsically-safe backplane.

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6 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

IMPORTANT

Electrostatic Charge

Protect the system against electrostatic charge. Post a sign near this module.

WARNING Avoid electrostatic charging. ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA

ELETROSTÁTI

CA.

For your convenience, a sign that can be cut out and posted is included on the

page

last

of these installation instructions.

Outputs

When using an intrinsically-safe electrical apparatus according to NEC 2002 or CEC 2002, the appropriate USA or Canadian codes must be followed.

The channels in the power supply are electrically connected to each other and

a common +V line.

have

You cannot interconnect lines because of the intrinsic safety requirements.

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FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 7

ATTENTION

Mount the 1797-PS1N Power Supply

The 1797-PS1N power supply provides pre-tapped 1 in. NPT (National Pipe Thread) conduit entrance and exit holes. Depending on your local requirements, the hazardous conduit entrance could be through hard conduit

or semi-flexible continuous conduit with poured seals from the safe area.

• Conduit seals must be installed at the entry of the enclosure (FM) or within 150 mm (6 in.) of the enclosure (UL).

• Use star washers and nuts to make sure you have a good electrical connection. Scrape the paint off the back panel in those areas where grounding bolts will be located.

ce power has been applied, wait 15 minutes after

• On disco

nnecting before opening the cover.

Similarly, the IS power exit could be through poured seals or the like. The pow once they are sealed at the power supply exit.

er-supply output wires are IS and require only normal IS treatment

1. Unscrew the cover of the power supply to access the input and output

inals.

term

2. Thread the blue IS-safe output power wiring through the IS power

al.

exit se

3. Connect the blue IS-safe output power wiri

ng to the output terminals

making sure all connections are tight.

These power supply outputs provide the input power to the FLEX Ex

modules

4. Thread the hazardous incoming power wiring through the conduit, or

owed piping, and the hazardous power entrance seal.

all

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8 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

ATTENTION

Vin

Vout

Chassis GND

IS Isolation

Hazardous to

-V +V

Out 1

-V +V

Out 2

-V +V

Out 3

41315

IS Limiters

Voltage and Current

-V +V

Out 4

Type of Power Input IS Power Output

5. Connect the hazardous incoming power wiring to the input terminals

making sure all connections are tight.

You can daisy chain the hazardous incoming power wiring to further

plies to simplify system wiring.

sup

Keep hazardous and IS-safe wiring separated in a suitable fashion. Do not leave long, excess wiring that could bridge between hazardous and safe areas as the power supply is closed.

our the seals and inspect them, as necessary.

6. P

7. Screw the lid back into place until tight.

8. Lock the lid by screwing the small set screw located in the bump on

the circumference of the lid.

The set screw prevents the lid from rotating more than half a turn.

Customer Connections

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FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 9

41314A

mm (in.)

194 (7.64)

174 (6.85)

Height 140 (5.51)

1 in. NPT*

* NPT = National Pipe Thread

Mounting Dimensions

149 (5.87)

10 (0.39) 2 holes

Chassis Ground

174 (6.85)

218 (8.58)

43306

+V -V +V -V +V -V +V -V+-

Cha GND

Out 1 Out 2 Out 3 Out 4VoutVin

1 2 3 4 5 1011121314151617

Terminal Base Assignments

North America ac Power Input IS Power Output

Mounting Dimensions and Terminal Base Assignments for the 1797-PS1N

Repair

The power supply is not field-repairable. Any attempt to repair this power will void the warranty and IS certification. If repair is necessary, return this power supply to the factory.

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10 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

Specifications

Table 1 FLEX Ex Power Supply - 1797-PS1N

Attribute Valu e

IS module mounting location Class I Division 1 Groups A to D T4 (UL and C-UL)

IS output type Class I Division 1 Groups A to D T4 (UL and C-UL); Class II

Input connectors 85…250V ac

Voltage range 85…250V ac or 120…250V dc

Input frequency 47…63 Hz

Current consumption 0.9 A… 0.35 A

Ripple N/A

Input power entrance 1 in. NPT,

Output connectors Terminals 10…17

Output power 4 x 8.5 W

(IIC), C

(IIC), L

, V

, I

Voltage U

Current I

Output cable resistance max (both direc

Isolation path

tions)

Input power to output power Output to output

Input power 55 W

Power dissipation 21 W

Thermal dissipation 71.67 BTU/hr

Conductor wire size

Dimensions (HxWxD) approx. 140 x 174 x 174 mm

Protections class IP 66/NEMA 7B

Weight (approx.) 7.3 kg (16 lb)

Class II Division 1 Groups E to G (UL and C-UL) Class III (UL and C-UL)

Division 1 Groups E

to G (UL and C-UL); Class III (UL and C-UL)

Terminals 1,2, 4, 5

<6 in. conduit allowed between power supply and

seal (UL and C-UL)

<9.5V

<1 A

<500 nF

<8 µH

<0.1 Ω

Galvanic to UL913 and CSA157

None

(12 gauge) max wire rated for 100 °C (212 °F) or higher

4 mm

1.2 mm (3/64 in.) insulation max

(5.51 x 6.9 x 6.9 in.)

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FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 11

Table 2 Environmental Specifications

Attribute Valu e

Environmental conditions

Temperature, operational

Temperature, storage -40…85

-20…70

°C (-4…158 °F)

°C (-40…185 °F)

Relative humidity 5…95% noncondensing

Shock Operating Tested 15 g peak acceleration, 11 (±1) ms pulse width

Nonoperating Tested 15 g peak acceleration, 11 (±1) ms pulse width

Vibration Tested 2 g @ 10…500 Hz per IEC 68-2-6

Table 3 Certifications

Certifications (when

t is marked)

produc

(1)

UL, C-UL Associated Apparatus, Class I, Zone 1, AEx ib IIC T4.

FM Explosionproof Class I, Div 1, Groups B, C, D, T4

Certificates

UL, C-UL UL File Number E197983

Valu e

Providing intrinsically safe circuits for use in Class I, Zon Group IIC Hazardous Locations when installed per Allen-Bradley Control Drawing No. 1797-6.5.6. Associated Apparatus, Class I, Groups A, B, Groups E, F and G; Class III Hazardous Locations. Providing intrinsically safe circuits for use in B, C and D; Class II, Groups E, F and G; and Class III Hazardous Locations when installed per Allen-Bradley Control Drawing No. 1797-6.5.6.

C and D; Class II,

Class I, Group A,

Associated Apparatus with Intrinsically safe connections

ss I, II, III, Div 1, Groups A--G

C Associated Apparatus with Intrinsically safe connections [Class I, Zone 1]

AEx [ib] IIC

Housing Type 4X

e 0,

FM FM Certificate Number 3009806

(1)

See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details

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12 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

UL, C-UL I/O Entity Parameters

If this product has the UL/C-UL mark, it has been designed, evaluated, tested, and certified to meet the following standards:

• UL 913, 1988, Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, Locations

• UL 12

03, Explosion-Proof and Dust-Ignition-Proof Electrical

Equi

pment for Use in Hazardous (Classified) Locations

• UL 2279, Electrical Equipment for Use in Class I, Zone 0, 1, and 2 Hazardous (Classi

• UL 61010, UL Standard for Safety Elec Measurement, Control, and Laboratory Use; Part 1: General Requirements

• CSA C22.2 No. 1 Equipment for Use in Hazardous Locations

• CSA C22.2 No. 3 Class I Hazardous Locations

• CSA-E79-0-95, Electrical Apparatus for Explosive Gas Atmospheres,

rt 0: General Requirements

• CSA-E79-11-95, Electrical Apparatu Atmospheres, Part 11: Intrinsic Safety “i”

• CSA C22.2 No. 14-95, Industrial Control Equipment

II, and III Division 1, Hazardous (Classified)

fied) Locations

trical Equipment For

57-92, Intrinsically Safe and Non-Incendive

0-M1986, Explosion-Proof Enclosures for Use in

s for Explosive Gas

Wiring Methods

• Wiring method 1 - Each channel is wired separately.

• Wiring method 2 - Multiple channels in

one cable, providing each channel is separated in accordance with the National Electrical Code (NEC) or Canadian Electric Code (CEC).

Table 4

1797-PS1N

Wiring

Meth

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Channel Terminals Voc

1797-5.34 - September 2011

Isc (A) Groups Ca

(V)

(µF)

(µH)

Page 13

FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 13

Nonhazardous Location

V ac To Next Power Supply 1797-PS1N

Input Power

Nonintrinsically Safe Wiring

Intrinsically Safe Wiring





To any IS device with entity concept parameters  of (V

max

, I

max

, Ci, Li) appropriate for connection to associated apparatus with entity concept parameters listed in Table 4.

43307

Hazardous (Classified)

Location

1797-PS1N

Class I, Division 1, Groups

 



1 and 2 Any one

channel (for example, ch1)

11(+), 10(-) 9.5 1.0 A, B, IIC 0.5 8

C, E, IIB 1.5 32

D, F, G, IIA 4.0 64

The entity concept allows interconnection of intrinsically safe apparatus

with associated apparatus not specifically examined in combination as a system when the approved values of Voc and Isc of the associated apparatus are less than or equal to V approved values of C C

and Li + L

cable

Wiring methods must be in accordance with the NEC, ANSI/NFPA 70,

Article 504 or the CEC CSA C22.1, Part 1, Appendix F. For additional information refer to ANSI/ISA RP12.6.

Wiring methods must be in accordance with the NEC, ANSI/NFPA 70,

Article 501 or the CEC CSA C22.1, Part 1, Section 18.

and I

max

and La of the associated apparatus are greater than Ci +

respectively for the intrinsically safe apparatus.

cable

of the intrinsically safe apparatus and the

max

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14 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

For mounting of the power supply, conduit runs must have sealing

fittings connected within 6 in. of enclosure.

The wiring contained within the nonintrinsically-safe wiring

compartment and the intrinsically-safe wiring compartment shall be separated from each other. Care must be taken to guarantee the separation of nonintrinsically-safe and intrinsically-safe wiring. The partitions within the power supply provide the necessary isolation for the electronics and the wiring, however, extreme care must be taken to guarantee wires are contained within their appropriate compartment and cannot contact any of the electronics.

WARNING: Substitution of components may impair intrinsic safety.

AVERTISSEMENT: La substitution de composant peut compromettre la securite intrinseque.

Cable must be rated at a minimum of 100

C (212 °F).

Warning: Keep cover tightly closed when circuits are alive.

After disconnecting power supply, wait 15 minutes before removing

cover.

No live maintenance.

The ambient operating temperature (T

is -20…70

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) for this system

amb

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FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 15

FM I/O Entity Parameters

If this product has the FM mark, it has been designed, evaluated, tested, and certified to meet the following standards:

• FM C1. No.3600:1998, Electrical Equipment for Use in Hazardous (Classifie

• FM C1. No.3610:1999, Intrinsically Safe Apparatus and Associated Apparatus for Use in Class Locations

• FM C1. No Requirements

• FM C1. No.3810:1989, 1995, Electrical and Electronic Test, Measuring and Proce

• ANSI/NEMA 250, 1991, En

Wiring Methods

• Wiring method 1 - Each channel is wired separately.

• Wiring method 2 - Multiple channels in

channel is separated in accordance with the National Electric Code (NEC).

FM I/O Entity Parameters for 1797-PS1N

Wiring

Method

1 and 2 Any one

d) Locations General Requirements

I, II, III Division 1 Hazardous (Classified)

.3615:198

9, Explosionproof Electrical Equipment General

ss Control Equipment

closures for Electrical Equipment

Channel Te rm i na ls Voc

(V)

channel (for example, ch1)

11(+), 10(-) 9.5 1.0 A, B, IIC 0.5 8

one cable, providing each

Isc (A) Groups Ca

(µF)

C, E, IIB 1.5 32

D, F, G, IIA 4.0 64

(µH)

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16 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

Nonhazardous Location

24V dc To Next Power Supply 1797-PS1N

24V Power Supply

Nonintrinsically Safe Wiring

Intrinsically Safe Wiring





To any IS device with entity concept parameters  of (V

max

, Ci, Li) appropriate for connection to associated apparatus

with entity concept parameters listed in Table 5.

43515

Hazardous (Classified) Location

1797-PS1N

Class I, Division 1, Groups B, C, D

 



Hazardous (Classified) Location

1797-PS1N

Class I, Division 1, Groups A, B, C, D

Class II, Division 1, Groups E, F, G

Class III Division 1

Class I Zone 1 IIC

The entity concept allows interconnection of intrinsically-safe apparatus

with associated apparatus not specifically examined in combination as a system when the approved values of V less than or equal to V approved values of C C

cable

max

and La of the associated apparatus are greater than Ci +

and Li + L

respectively for the intrinsically-safe apparatus.

cable

and I

of the intrinsically-safe apparatus and the

max

and Isc of the associated apparatus are

Wiring methods must be in accordance with the NEC, ANSI/NFPA 70,

Article 504.

Wiring methods must be in accordance with the NEC, ANSI/NFPA 70,

Article 501.

For mounting of the power supply, conduit runs must have sealing

fittings at the entry of the enclosure.

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FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 17

IMPORTANT

The wiring contained within the nonintrinsically-safe wiring

WARNING: Substitution of components may impair intrinsic safety.

Cable must be rated at a minimum of 100

C (212 °F).

Warning: Keep cover tightly closed when circuits are alive.

After disconnecting power supply, wait 15 minutes before removing

cover.

No live maintenance.

The ambient operating temperature (T

is -20…70 oC.

For detailed certification information, refer to the FLEX Ex System Certification Reference Manual, publication 1797-6.5.6.

) for this system

amb

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18 FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply

Pass all IS power-supply output wires through the ferrite bead before connecting the cable to the power supply.

30889

Ferrite Beads

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FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 19

WARNING Avoid electrostatic charging.

ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA ELETROSTÁTICA.

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Page 20

Rockwell Automation Support

Rockwell Automation provides technical information on the Web to assist you in using its products. At http://support.rockwellautomation.com manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.

For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect Support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit

http://support.rockwellautomation.com

Installation Assistance

If you experience a problem with a hardware module within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your module up and running.

United States 1.440.646.3434 Monday – Friday, 8am – 5pm EST

Outside United States Please contact your local Rockwell Automation representative for

any technical support issues.

New Product Satisfaction Return

Rockwell tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning, it may need to be returned.

United States Contact your distributor. You must provide a Customer Support case

number (see phone number above to obtain one) to your distributor in order to complete the return process.

Outside United States Please contact your local Rockwell Automation representative for

return procedure.

Allen-Bradley, Rockwell Automation, ControlLogix, RSLinx, TechConnect, and FLEX I/O are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

, you can find technical

Publication 1797-5.34 - September 2011 PN-121054