Schweitzer Engineering Laboratories SEL-2594 Bedienungsanleitung

Date Code 20010827 SEL-2594 Contact Transfer Module

SEL-2594 Contact Transfer Module

Instruction Manual

i3346a

The SEL-2594 transfers contact status for

control, alarm or protective relay transfer trip

commands (teleprotection). The SEL-2594

provides eight contact inputs and eight

contact outputs. The contact input status of

one SEL-2594 is transferred to another

SEL-2594 contact output through IEEE

C37.94 compliant channels over digital

multiplexers. Prior to this interface,

connections between teleprotection

equipment and multiplexers have been

electrical only. Because low energy signal

interfaces are susceptible to electromagnetic

interference (EMI) and ground loops, the

fiber optics interface eliminates data

corruption due to these conditions.

➤Isolation Fiber optic connections

provide isolation and prevent ground

loops associated with electric

communications cables.

➤Immunity Fiber optics provide

immunity to radiated and induced voltages associated with control wiring.

➤Simple LEDs indicate the state of inputs, contact outputs and channel status. All settings are

made with a control switch—PC software is not required.

➤Secure 16 user selectable addresses for transmit and receive allows up to 240 unique address

combinations.

➤High Speed The SEL-2594 uses one 64-kilobit time slot in a digital multiplexer, and provides 8

millisecond back-to-back operate time.

1 to 8

Contact Inputs

1 to 8

Contact Outputs

SEL-2594

Contact

Transfer

Modu e

SEL-2594

Contact

Transfer

Modu e

Digita

Network

Up to 2 km of

mu timode fiber

Digita

Mu tip exer

C37.94 Comp iant

Channe Card

Digita

Mu tip exer

C37.94 Comp iant

Channe Card

Features, Benefits, and Applications

SEL-2594 Contact Transfer Module Date Code 20010827

Product Overview

roduct Overview

Figure 1 provides a functional overview of the SEL-2594.

Figure 1 SEL-2594 Functional Overview

FRONT

LEFT RIGHT

END

Wide range

power supp y

consumes

ess than

5 watts.

A arm contacts

signa se f-test

and received

communications

channe status.

Leve -sensitive

contact inputs

do not assert

during dc

grounds when

app ied to center-

grounded systems.

LEDs indicate

input and output

status, channe

activity, device

status, and

communications

channe hea th.

Fiber-optic port

provides e ectrica

iso ation. Communications

protoco enhances

data transfer security.

Quick setup.

Rugged and

compact

f ush mount

enc osure

withstands

EMI, RFI,

shock, and

vibration.

Output

contacts

rated for

trip and

c ose duty.

Each output

contact has

both "a" and

"b" contacts

for f exibi ity.

Screw

termina s

accept ring

ugs with

wires up to

#10 AWG.

A termina s

are c ear y

numbered.

Large

range for

insta ing

outdoors.

+85˚C

–40˚C

Date Code 20010827 SEL-2594 Contact Transfer Module

App ications

Applications

rotection High-speed protective relay systems rely on teleprotection equipment to send

and receive transfer tripping commands between substations. Modern utility

grade digital multiplexers include teleprotection channel cards that provide

this function using one or more of the multiplexer time slots. Often the

multiplexer is co-located with the communications equipment in the

substation, however, the communications equipment and protective relays can

be physically located in separate buildings. The physical equipment separation

requires long control cable runs between devices, increasing susceptibility to

problems associated with metallic control wiring. The SEL-2594 provides a

contact interface between the protective relay and IEEE C37.94 compliant

multiplexer equipment via a short haul fiber interface.

Figure 2 The SEL-2594 Is a Low-Cost Tele rotection

System for Use with IEEE C37.94 Com liant Digital Multi lexers

SCADA Use the SEL-2594 to extend the reach of SCADA Remote Terminal Units

(RTU). Communicate control and alarm points between remote circuit

breakers/circuit switchers and RTUs via the SEL-2594.

Figure 3 Use the SEL-2594 to Extend

RTU Status and Control to Other Locations

Fiber-Optic

Mux

SEL-2594

Re ay

Fiber-Optic

Mux

SEL-2594

Re ay

Digita

Mu tip exer

SEL-2594

SCADA

RTU

SEL-2594

Digita

Mu tip exer

Digita

Communications

Network

Contro signa s

to/from the

remote device

SEL-2594 Contact Transfer Module Date Code 20010827

Functiona Description

Functional Description

Figure 4 SEL-2594 Functional Block Diagram

Transmit Section The contact input information is passed through an input encoder, where the

contact status is encoded into a 64 kilobit per second data packet. This

“Payload” packet includes the status bits for the eight contact inputs, error

detection bits, contact output framing bits, and transmit address bits per switch

setting 1–4. The completed transmit payload packet is sent to the C37.94

framer section. The C37.94 framer section formats the payload data into a

transport frame that is used between the SEL-2594 and the multiplexer channel

card. This frame is transmitted at 2.048 megabits per second and includes

header and overhead bits, per IEEE Standard C37.94.

Figure 5 Frame Structure

The Multiplexer The transport frame is stripped off at the multiplexer channel card and the

payload data is included as a DS0 channel in the multiplexer payload. At the

remote multiplexer the DS0 data is decoded and inserted into a new transport

C37.94 frame and sent to the remote SEL-2594.

Receive Section The SEL-2594 receives data frame from the multiplexer channel card. In the

framer section the payload data is separated from the transport frame and sent

to the output decoder section. The RX LED lights if the C37.94 transport

frame is valid. In the output decoder, error detection bits are checked. If errors

are detected, the DATA LED extinguishes, the contact outputs de-energize and

the packet is discarded. If the error detection check passes, the address

information is decoded and compared to the receive address setting on

switches 5–8. If the address is different than expected, the DATA LED

extinguishes and the output contacts de-energize.

Contact

Inputs

Contact

Outputs

Output

Decoder

Input

Encoder

C37.94

Framer

TX RX

to Mu tip exer

Header Overhead Pay oad

C37.94 Frame

Transport Frame SEL-2594 Data

Date Code 20010827 SEL-2594 Contact Transfer Module

Configuring the SEL-2594

The SEL-2594 has a 10 position dip switch to set the transmit address, receive

address and timing mode as shown in Figure 6.

Figure 6 SEL-2505 Control Switch Position Identifications

Setting the

Transmit and

Receive Addresses

Set the transmit (TX) address of each local SEL-2594 to match the receive

(RX) address of the remote SEL-2594. The RX and TX addresses of each

device should always be set to different numbers. The SEL-2594 detects a loop

back condition when it receives the same address as the TX address setting.

When the SEL-2594 detects loop back, it illuminates the LOOP LED and

extinguishes the DATA LED. The SEL-2594 disables the contact outputs to

prevent acting on its own message during loop back.

The SEL-2594 provides 16 transmit and receive address choices. Table 1 lists

the switch positions for the 16 addresses.

Switch No. Function

1—4 Transmit Address (TX)

5—8 Receive Address (RX)

9 Timing Mode

10 Reserved

OFF

10 9 8 6754321

Table 1 Transmit and Receive Address Settings

Switch Switch Switch Switch Address

OFF OFF OFF OFF 1

OFF OFF OFF ON 2

OFF OFF ON OFF 3

OFF OFF ON ON 4

OFF ON OFF OFF 5

OFF ON OFF ON 6

OFF ON ON OFF 7

OFF ON ON ON 8

ON OFF OFF OFF 9

ON OFF OFF ON 10

ON OFF ON OFF 11

ON OFF ON ON 12

ON ON OFF OFF 13

ON ON OFF ON 14

ON ON ON OFF 15

ON ON ON ON 16

SEL-2594 Contact Transfer Module Date Code 20010827

Configuring the SEL-2594

Setting

the Timing Mode

Switch 9 sets the timing mode for the SEL-2594. For normal operation set this

switch to ON. In this mode, timing is recovered from the host multiplexer.

When testing SEL-2594 devices without a multiplexer, connect the fiber

directly between two SEL-2594s and set Switch 9 to the test position on only

one SEL-2594.

When connecting two SEL-2594s back-to-back, set one timing mode switch to

OFF. With the timing mode switch set to OFF, the SEL-2594 provides timing

source for both of the SEL-2594s.

Connecting

the SEL-2594

to a Multiplexer

Use a duplex fiber optic patch cord to connect the SEL-2594 to an IEEE

C37.94 compliant channel card. Connect the TX ST connector on the

SEL-2594 to the RX ST connector on the multiplexer channel card, and

connect the RX ST connector on the SEL-2594 to the TX ST connector on the

multiplexer channel card, as shown in Figure 7.

Figure 7 Fiber-O tic Connections

RX TX

62.5 µm or 50 µm

mu timode fiber

patchcord

Mu tip exer

channe card

interface

Date Code 20010827 SEL-2594 Contact Transfer Module

Testing the SEL-2594

Test the SEL-2594 with either a direct fiber connection to another SEL-2594,

or with two SEL-2594s connected through a multiplexer.

Step 1. Configure the SEL-2594 dip switch ID settings. Make sure the

TX address of the local SEL-2594 matches the RX address of

the remote SEL-2594. If the connection between the SEL-2594s

is direct fiber, set the timing control switch 9 to off (test) on one

SEL-2594. If the test setup includes multiplexers set switch 9 to

on (normal) on both SEL-2594s.

Step 2. Connect the chassis ground terminal of the SEL-2594 to ground

(Terminal1).

Step 3. Connect and apply rated voltage to the power supply inputs of

the SEL-2594 (positive to terminal 4, negative to terminal 3).

The ENABLE LED should illuminate. The form “B”ALARM

contact will remain closed and the ALARM LED will

illuminate (red) due to no communications.

Step 4. Press the lamp test button. All LEDs should illuminate. When

you release the button, the contact input and output LEDs

should extinguish and the remainder will return to indicating the

current communication status.

Step 5. Make the fiber optic connections between SEL-2594s either

directly or through a multiplexer by connecting the transmit

(TX) fiber on one unit to the receive fiber (RX) on the other.

The DATA, TX, and RX LEDs on both devices should

illuminate. In addition the form “B”ALARM contact should

open, and the ALARM LED should extinguish.

Step 6. Apply rated voltage to IN1 on one device. The IN1 LED should

illuminate on this device. On the other SEL-2594 the OUT1

contact should close and the OUT1 LED should illuminate.

Step 7. Repeat step 6 for the remaining contacts.

Step 8. To test the loop-back feature, set switch 9 to test, connect a

single fiber between the TX and RX on the same device. The

LOOP LED should illuminate and the DATA LED should

extinguish.

Alarm Conditions Figure 8 on page 8 illustrates the operation of the yellow alarm bit and LED.

A yellow alarm is a remote receive alarm communicated from the local

channel card to the local SEL-2594 via a predefined alarm bit in the frame. A

yellow alarm is declared when the local multiplexer channel card is not

receiving data from the local SEL-2594. The channel card sets the yellow

alarm bit in the transport frame header in the transmit direction back to the

SEL-2594. If the SEL-2594 is still receiving data from the channel card, the

yellow alarm bit is decoded and the ALARM LED is illuminated yellow.

When valid transport frames are received but the payload data is invalid, the

ALARM LED will be red, the DATA LED will turn off, and the RX LED will

remain lit.

SEL-2594 Contact Transfer Module Date Code 20010827

Testing the SEL-2594

Figure 8 Link Failure and Yellow Alarm Condition

LED Indications

NOTE: The SEL-2594 can decode and

display the yellow alarm bit but does not

generate a yellow alarm.

NOTE: Implementation o the yellow

alarm bit is not a requirement o IEEE

Standard C37.94. Check the multiplexer

channel card data sheet to veri y use.

SEL-2594SEL-2594

ALARM

DATA

ALARM

DATA

Ye ow ALARM

LED indicated

Ye ow ALARM

bit set

Fai ure of individua fiber path

The DATA LED is OFF, indicating

no pay oad data detected

Indicates receipt of va id

C37.94 transport frames

When i uminated the ENABLE

LED indicates that the SEL-2594

has power app ied, has passed

the se f-test routines, and is

ready to receive data.

IN1 through IN8 indicate that vo tage is

app ied to the corresponding contact

input termina s.

TX LED indicates the SEL-2594 is

transmitting data.

OUT1 through OUT8 indicate that the

contact output associated with that

LED is energized.

An i uminated LOOP LED indicates

that the SEL-2594 is receiving data

with the same channe address that

it is transmitting.

When i uminated, the DATA LED

indicates the received pay oad

data has passed a error checks.

When this LED is off, the contact

outputs and a arm re ays are

de-energized.

RX LED indicates receipt of va id

C37.94 transport frames.

A red ALARM LED indicates that DATA

or ENABLE criteria have not been

met.

A ye ow ALARM LED indicates the

SEL-2594 is receiving va id data from

the mu tip exer but the mu tip exer

is not receiving va id data from the

SEL-2594.

Date Code 20010827 SEL-2594 Contact Transfer Module

SEL-2594 Operating Time Performance

SEL-2594 Operating Time erformance

Figure 9 depicts the time to transfer a contact closure between a local and

remote SEL-2594. This figure includes a nominal 0.5 millisecond multiplexer

through delay. Actual through delay will vary depending on multiplexer type

and network configuration.

Figure 9 End-to-End O erating Time Diagram

Input

SEL-2594

Contact

Power Fiber-Optic

Transmitter

SEL-2594

Output

Fiber-Optic

Receiver

MULTIPLEXER

6.5 ms

0.5 ms 8 ms Tota

1 ms

SEL-2594 Contact Transfer Module Date Code 20010827

Mechanica Diagram

Mechanical Diagram

Figure 10 SEL-2594 Dimensions and Drill Diagram

Inhaltsverzeichnis

Andere Schweitzer Engineering Laboratories Steuereinheit Handbücher

Schweitzer Engineering Laboratories

Schweitzer Engineering Laboratories SEL-2245-4 Bedienungsanleitung

Beliebte Steuereinheit Handbücher anderer Marken

Festo

Festo Compact Performance CP-FB6-E Stücklistenhandbuch

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Bedienungsanleitung

JS Automation

JS Automation MPC3034A Bedienungsanleitung

JAUDT

JAUDT SW GII 6406 Series Kurzanleitung

Spektrum

Spektrum Air Module System Bedienungsanleitung

BOC Edwards

BOC Edwards Q Series Bedienungsanleitung

KHADAS

KHADAS BT Magic Bedienungsanleitung

Etherma

Etherma eNEXHO-IL Bedienungsanleitung

PMFoundations

PMFoundations Attenuverter Bedienungsanleitung

GEA

GEA VARIVENT Bedienungsanleitung

Walther Systemtechnik

Walther Systemtechnik VMS-05 Bedienungsanleitung

Altronix

Altronix LINQ8PD Montageanleitung

Eaton

Eaton Powerware Series Bedienungsanleitung

WAGO

WAGO 750-407/040-000 Bedienungsanleitung

Sony

Sony CCU-590 Bedienungsanleitung

Graco

Graco 25D614 Bedienungsanleitung

Task Force Tips

Task Force Tips YE-RF-900 Programmierhandbuch

Shini

Shini SPV-U Series Bedienungsanleitung