Sel SEL-DTA2 User manual

Schweitzer Engineering Laboratories
2350 NE Hopkins Court
Pullman WA USA 99163-5603
Tel: [phone] FAX: [phone]
SEL-DTA2
Display/Transducer Adapter
Instruction Manual

SEL-DTA2 Instruction Manual Date Code 20020329
CAUTION: Equipment components are sensitive to
electrostatic discharge (ESD). Undetectable permanent
damage can result if you do not use proper ESD procedures.
Ground yourself, your ork surface, and this equipment before
removing any cover from this equipment. If your facility is not
equipped to ork ith these components, contact SEL about
returning this device and related SEL equipment for service.
!
DANGER: Disconnect or de-energize all external
connections before opening this device. Contact ith
hazardous voltages and currents inside this device can cause
electrical shock resulting in injury or death.
!
DANGER: Contact ith instrument terminals can cause
electrical shock that can result in injury or death.
!
WARNING: Have only qualified personnel service this
equipment. If you are not qualified to service this
equipment, you can injure yourself or others, or cause
equipment damage.
!
WARNING: This device is shipped ith default
pass ords. Default pass ords should be changed to
private pass ords at installation. Failure to change each default
pass ord to a private pass ord may allo unauthorized access.
SEL shall not be responsible for any damage resulting from
unauthorized access.
!
ATTENTION: Les composants de cet équipement sont
sensibles aux décharges électrostatiques (DES). Des
dommages permanents non-décelables peuvent résulter de
l’absence de précautions contre les DES. Raccordez-vous
correctement à la terre, ainsi que la surface de travail et
l’appareil avant d’en retirer un panneau. Si vous n’êtes pas
équipés pour travailler avec ce type de composants, contacter
SEL afin de retourner l’appareil pour un service en usine.
!
DANGER: Débrancher tous les raccordements externes
avant d’ouvrir cet appareil. Tout contact avec des tensions
ou courants internes à l’appareil peut causer un choc électrique
pouvant entraîner des blessures ou la mort.
!
DANGER: Tout contact avec les bornes de l’appareil
peut causer un choc électrique pouvant entraîner des
blessuers ou la mort.
!
AVERTISSEMENT: Seules des personnes qualifiées
peuvent travailler sur cet appareil. Si vous n’êtes pas
qualifiés pour ce travail, vous pourriez vous blesser avec
d’autres personnes ou endommager l’équipement.
!
AVERTISSEMENT: Cet appareil est expédié avec des
mots de passe par défaut. A l’installation, les mots de
passe par défaut devront être changés pour des mots de passe
confidentiels. Dans le cas contraire, un accés non-autorisé á
l’équipement peut être possible. SEL décline toute
responsabilité pour tout dommage résultant de cet accés non-
autorisé.
!
The software (firmware), schematic drawings, relay commands, and relay messages are copyright protected by the United States Copyright
Law and International Treaty provisions. All rights are reserved.
You may not copy, alter, disassemble, or reverse-engineer the software. You may not provide the software to any third party.
All brand or product names appearing in this document are the trademark or registered trademark of their respective holders.
Schweitzer Engineering Laboratories, SELOGIC, Connectorized, Job Done, SEL-PROFILE, SEL-5030 ACSELERATOR, and are registered
trademarks of Schweitzer Engineering Laboratories.
The English language manual is the only approved SEL manual.
ã1993, 1994, 1998, 2002 Schweitzer Engineering Laboratories. All rights reserved.
This product is covered by U.S. Patent Numbers: 5,160,926; and U.S. Patent(s) Pending, and Foreign Patent(s) Issued and Pending.
This product is covered by the standard SEL 10-year warranty. For warranty details, visit www.selinc.com or contact your customer service
representative. PMDTA2-01

Date Code 20020329 SEL-DTA2 Instruction Manual
Table of Contents
List of Figures...................................................................................................................................................... v
List of Tables ...................................................................................................................................................... vii
Manual Change Information.......................................................................................................................... ix
Section 1: Introduction
Getting Started................................................................................................................................................. 1.1
Section 2: Specifications
General Specifications..................................................................................................................................... 2.1
Display Modes................................................................................................................................................. 2.2
Rear Panel Connections and Configurations ................................................................................................... 2.7
Self-Tests ....................................................................................................................................................... 2.10
Section 3: Communications
Introduction ..................................................................................................................................................... 3.1
Serial Port Connections and Configurations ................................................................................................... 3.2
Communications Protocol ............................................................................................................................... 3.3
Command Characteristics................................................................................................................................ 3.4
Command Descriptions ................................................................................................................................... 3.6
Section 4: Installation
Installing the DTA2 ......................................................................................................................................... 4.1
Section : Maintenance and Testing
Introduction ..................................................................................................................................................... 5.1
Appendix A: Firmware Versions and Relay Compatibility
Firmware Versions.......................................................................................................................................... A.1
Relay Compatibility........................................................................................................................................ A.2

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Date Code 20020329 SEL-DTA2 Instruction Manual
List of Figures
Section 1: Introduction
Section 2: Specifications
Figure 2.1 FAULTS Mode Initial Window Positioning ........................................................................... 2.2
Figure 2.2 FAULTS Mode Display Window After Scroll Down............................................................. 2.2
Figure 2.3 New Fault Display.................................................................................................................. 2.3
Figure 2.4 New Fault/Relay Status Warning Display .............................................................................. 2.3
Figure 2.5 Example Meter Display.......................................................................................................... 2.4
Figure 2.6 Example Frozen Meter Display.............................................................................................. 2.4
Figure 2.7 Relay Status Message............................................................................................................. 2.5
Figure 2.8 Relay Status Warning Message .............................................................................................. 2.5
Figure 2.9 DB25 to Terminal Block Adapter .......................................................................................... 2.7
Section 3: Communications
Figure 3.1 Access Level Relationships.................................................................................................... 3.4
Section 4: Installation
Figure 4.1 SEL-DTA2 Dimensions, Panel Cutout, and Drill Plan .......................................................... 4.2
Figure 4.2 SEL-DTA2 Parts Placement Diagram.................................................................................... 4.3
Section : Maintenance and Testing
Figure 5.1 SEL-DTA2 Front and Rear Panels.........................................................................................5.1
Appendix A: Firmware Versions and Relay Compatibility

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Date Code 20020329 SEL-DTA2 Instruction Manual
List of Tables
Section 1: Introduction
Section 2: Specifications
Table 2.1 Adapter Board Signal Assignments ....................................................................................... 2.8
Table 2.2 Contact Assignments and Signal Descriptions....................................................................... 2.8
Section 3: Communications
Table 3.1 Serial Port Pin Assignments................................................................................................... 3.2
Section 4: Installation
Table 4.1 DTA2 Interface Cables........................................................................................................... 4.1
Section : Maintenance and Testing
Appendix A: Firmware Versions and Relay Compatibility
Table A.1 Firmware Versions................................................................................................................. A.1
Table A.2 SEL Relay Models Compatible With the SEL-DTA2........................................................... A.2

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Date Code 20020329 SEL-DTA2 Instruction Manual
Manual Change Information
The date code at the bottom of each page of this manual reflects the creation or revision date. The table below
summarizes changes in this manual to date, listing the most recent revisions at the top.
Release Date Summary of Chan es in this Release
This Manual Change Information section is provided as a record of all changes made to this manual since the initial release.
20020329 Reissued entire manual with the following changes:
Updated formatting of entire manual
Reverse of Title Page: Added warranty statement and password warning
Section 2: Clarified Fast Meter description
Section 3: Clarified baud rate support for SEL-300 series relays. Added description of strong passwords.
Section 5: Clarified Checkout Procedure
Appendix A: Updated Relay Compatibility table
970417 Reissued entire manual with the following changes:
Updated formatting of entire manual
Appendix A: Added Relay Compatibility table

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Date Code 20020329 SEL-DTA2 Instruction Manual
Section 1
Introduction
Getting Started
This instruction manual provides descriptive information and instructions for
the SEL-DTA2 Display/Transducer Adapter. The manual is divided into
sections with the following information:
Section 1: Introduction and Specifications. General information.
Section 2: Specifications. Detailed technical descriptions of each feature.
Section 3: Communications. User interface and protocol.
Section 4: Installation. Installation and configuration.
Section 5: Maintenance and Testing. Initial checkout and tests.
Appendix A: Firmware Versions and Relay Compatibility. Listings of
firmware versions and compatible relays.
Overview The SEL-DTA2 Display/Transducer Adapter offers a simple and economical
on-line interface to the SEL family of digital relays.
The features of the SEL-DTA2 include:
 Two-line, 40-column, high contrast liquid crystal display
supplies relay information.
 Displays new faults as they occur as a visual alert.
 Maintains history of 30 short event reports.
 Furnishes visual alert of relay status warnings and failures.
 Displays relay status on demand.
 Isolated RESET input resets fault location transducers and
contact outputs.
 Output relay contact for alarm.
 Output relay contact acknowledges RESET input.
 Five output relay contacts identify fault type.
 Eight programmable analog transducer channels proportional
to transmission line voltages, currents, power, or fault distance.
 Internal power supply for reliable operation.
 Automatic self-testing ensures continuous reliable operation.
 EIA-232 communications.
 Compact 1.75" cabinet allows simple installation in standard
19" relay rack.

1.2
SEL-DTA2 Instruction Manual Date Code 20020329
Introduction
Getting Started
General Description The SEL-DTA2 serves as an extension to the SEL family of digital relays.
New faults are automatically captured, stored in a 30-event fault history, and
displayed, effectively eliminating the need for a separate automatic message
output device. The SEL-DTA2 also provides access to metering and relay
status information. A set of eight voltage outputs and eight current outputs
presents fault and meter data to monitor and control equipment.
The SEL-DTA2 provides two communications ports. Port 1 may be used for
changing the analog output scaling and other settings, while Port 2 links to the
relay for communications. Refer to Relay Compatibility on page A.2 in
Appendix A: Firmware Versions and Relay Compatibility for a list of
compatible SEL devices.

Date Code 20020329 SEL-DTA2 Instruction Manual
Section 2
Specifications
General Speci ications
Display Functions
Three primary sets of display data:
Faults (including fault location), metering, and
target relay self-test status
Line-by-line scrolling of fault and status data
Automatic conditions updating of meter data
Standard Meter: Updates approximately
every five seconds
Fast Meter: Updates approximately every
one-half second
30-event fault history
Self-Testing
Stall timer monitors processor
Setting checks
RAM, ROM, and display tests
Dielectric Strength
Optoisolated input, relay outputs, and power
supply routinely tested at3000Vdc for 10
seconds.
Interference Tests
Optoisolated input, relay outputs, and power
supply:
IEEE C37-90 SWC test (type tested)
IEC 255-6 interference test (type tested)
Impulse
Optoisolated input, relay outputs, and power
supply:
IEC 255-5 0.5 joule, 5000 volt test (type
tested)
RFI Tests
Type tested in field from a 1/4-wave antenna
driven by 20 watts at 150 MHz and 450
MHz, randomly keyed on and off at a
distance of one meter from unit.
Unit Weight
5.0 pounds (2.3 kg)
Operating Temperature
–4°F to +158°F (–20°C to +70°C)
Transducer Channels
Current and voltage are simultaneously
available for each of the eight channels.
Channels assigned to metering functions
automatically update regardless of display
mode.
Current Outputs
Option 1: –1 to 1 mA range
Option 5: –5 to 5 mA range
10 V load compliance
± 0.2% accuracy at full scale
> 2.25 mega ohms output impedance
Voltage Outputs
–5 to 5 V range
± 0.2% accuracy at full scale
10 mA maximum load current
Control Input Voltage
48 V: 30 to 60 Vdc
125 V: 80 to 150 Vdc
250 V: 150 to 300 Vdc
Power Supply
48/125 V: 36 to 200 Vdc,
85 to 140 Vac; 12 watts
250 V: 85 to 350 Vdc,
85 to 264 Vac; 12 watts

2.2
SEL-DTA2 Instruction Manual Date Code 20020329
Specifications
Display Modes
Display Modes
The following is a description of all SEL-DTA2 display modes, controls,
inputs, and outputs.
The front panel switches control display modes and scrolling. The “SCROLL”
switches repeat if held in the asserted state.
Faults There are two ways to enter the FAULTS mode.
Press the front panel “FAULTS” switch.
New faults reported by the relay preempt all other display modes and place the
instrument in the FAULTS mode.
Pressing the front panel “FAULTS” switch displays the last two validated
faults reported to the SEL-DTA2 by the relay. Press the “SCROLL” switches
to view the last 30 validated faults. If no faults have been captured since power
up, the instrument displays “FAULT HISTORY EMPTY.”
Display contents are determined by the display window position within the
30-event fault history. Figure 2.1 illustrates an example fault history, with the
window positioned to display the last two faults (as if a user entered the mode
recently).
Fi ure 2.1 FAULTS Mode Initial Window Positionin
Pressing the “SCROLL DOWN” switch once changes the display window
position as shown in Figure 2.2. View any two faults in the 30-event fault
history using the “SCROLL UP” and “SCROLL DOWN” switches.
Fi ure 2.2 FAULTS Mode Display Window After Scroll Down
Faults are numbered sequentially from newest to oldest; the latest fault is
assigned the number “1,” oldest faults are discarded as history length exceeds
30 lines. The assigned number appears in display columns 1–2. Columns 5 -
12 and 14 - 25 contain the date and time of the fault, respectively; columns 29
- 31 show fault type; columns 35 - 40 indicate fault location.
BEGINNING OF HISTORY
01 01/02/90 22:33:51.812 1BG 74.580
02 01/02/90 22:33:47.108 1AG 74.430
03 01/02/90 10:23:10.678 1CG 94.450
04 01/02/90 10:11:23.498 1BG 106.220
•
•
•
29 01/01/90 13:44:37.893 1AG 70.290
30 01/01/90 02:22:15.375 1AG 76.780
END OF HISTORY
BEGINNING OF HISTORY
01 01/02/90 22:33:51.812 1BG 74.580
02 01/02/90 22:33:47.108 1AG 74.430
03 01/02/90 10:23:10.678 1CG 94.450
04 01/02/90 10:11:23.498 1BG 106.220
•
•
•
29 01/01/90 13:44:37.893 1AG 70.290
30 01/01/90 02:22:15.375 1AG 76.780
END OF HISTORY
Stored Data
Stored Data

2.3
Date Code 20020329 SEL-DTA2 Instruction Manual
Specifications
Display Modes
When the relay sends a fault report to the SEL-DTA2, the report is checked
against a settable fault location window (see the SET command description).
If the fault lies within this window, the current display mode is preempted and
the SEL-DTA2 automatically enters the FAULTS mode. The SEL-DTA2
indicates the receipt of the new fault by adding the line “NEW FAULT” to the
top of the fault list (as shown in Figure 2.3) in blinking characters.
Fi ure 2.3 New Fault Display
If any transducer outputs are programmed to present the fault location, these
channels are updated by the rules outlined in the SET command description.
The contact outputs reflect fault information as presented in the Contact
Outputs section.
Pressing any active front panel control acknowledges the fault and activates
the FAULTS mode functions as previously described. If both new fault(s) and
relay status warnings exist and are not acknowledged, the first line is modified
as shown in Figure 2.4.
Fi ure 2.4 New Fault/Relay Status Warnin Display
The SEL-DTA2 remains in the FAULTS mode until another display mode is
selected. Also, if all new faults have been acknowledged, the FAULTS mode
can be preempted by the status mode via detection of a relay status warning.
METER Commands:
Access Metering
Data or Reset
Demand Registers
METER displays meter information; demand and peak-demand information
when available; resets demand; or resets peak demand of the selected relay on
command (where applicable).
Press METER to select METER commands:
Use the scroll keys to select one of the following:
METER (instantaneous)
METER D (demand)
METER RD (reset demand)
METER RP (reset peak)
Press METER again to send the command. Reset functions prompt you for a
confirmation. Press scroll up for YES to confirm, scroll down for NO to reject.
Not all SEL relays support the METER D, METER RD, and METER RP
functions. Refer to your relay instruction manual to determine which METER
functions are supported.
The meter display contains up to eight lines of data, the first two are displayed
when the METER mode is activated. View the remaining lines of the meter
display by using the “SCROLL DOWN” and “SCROLL UP” switches. As
shown in Figure 2.5 on page 2.4, this mode uses the following display format:
Line 1 . Display line one contains phase current data in rms amps. When
Fast Meter is available and enabled, or the SEL-DTA2 is connected to
an SEL-121F Relay, residual current in rms amps is displayed
following the phase currents.
NEW FA LT
01 01/02/90 22:33:51.812 1BG 74.580
NEW FA LT & RELAY STAT S WARNING
01 01/02/90 22:33:51.812 1BG 74.580
METER (METER to accept, scroll to
change, other keys to exit)

2.4
SEL-DTA2 Instruction Manual Date Code 20020329
Specifications
Display Modes
Line 2. Display line two contains the real power in MW and reactive
power in MVAR. When Fast Meter is available and enabled, three
times the negative-sequence current (3I2) in rms amps is displayed
preceding the power quantities.
Line 3 . Display line three contains phase-to-neutral voltage data in rms
kV. When Fast Meter is available and enabled, three times the zero-
sequence voltage (3V0) in rms kV is displayed following the phase-to-
neutral voltages. If the SEL-DTA2 is connected to an SEL-121F Relay,
the synchronizing voltage (VS) in rms kV is displayed following the
phase-to-neutral voltages.
Line 4 . Display line four contains phase-to-phase voltage data in rms kV.
If Fast Meter is available and enabled, three times the negative-
sequence voltage (3V2) in rms kV is displayed following the phase-to-
phase voltages.
Additional lines containing demand and peak-demand meter values are
available when the SEL-DTA2 is connected to a relay that supports those
functions.
Fi ure 2.5 Example Meter Display
The SEL-DTA2 remains in the METER operating mode until a new fault is
reported, the mode is manually exited by pressing the “CLEAR”control, or
another display mode is activated by pressing the corresponding control.
Additionally, the METER mode can be pre-empted by the STATUS mode via
detection of a relay status warning.
Pressing “METER”once toggles display updating, showing the present meter
values until the button is pressed again. Pressing “METER”an even number
of times freezes the meter display. A frozen meter display is identified by a “:”
following the meter quantity label as shown in Example Frozen Meter
Display. Press “METER”again to release the display. The analog output
channels are continuously updated regardless of display mode.
Fi ure 2.6 Example Frozen Meter Display
Standard Meter. The instrument updates the display with new data
approximately every five seconds.
Fast Meter. The SEL-DTA2 is capable of updating and displaying meter
data every 0.5 seconds using binary Fast Meter data transfer. The
SEL-DTA2 automatically attempts the Fast Meter function when
initially connected to an SEL relay. In some SEL relays, Fast Meter is
supported automatically in a specific serial port. Other SEL relays
have a port Automatic Message setting that needs to be set to DTA in
order for the SEL-DTA2 to receive the Fast Meter messages. Refer to
your relay instruction manual to get specific information about port
settings and Fast Meter support.
If the SEL relay does not support Fast Meter, the SEL-DTA2 defaults
to the standard meter function. Fast Meter data transfer allows for fast
MET IA=994 B=995 C=994
P=350.90 Q=67.80
VA=133.5 VB=134.0 VC=133.5
AB=230.5 BC=231.0 CA=230.5
MET IA=994 B=995 C=994
P=350.90 Q=67.80
VA=133.5 VB=134.0 VC=133.5
AB=230.5 BC=231.0 CA=230.5
Displayed
Data
Displayed
Data

2.5
Date Code 20020329 SEL-DTA2 Instruction Manual
Specifications
Display Modes
confirmation of voltage and current quantities during substation
switching operations.
The SEL-DTA2 performs meter calculations instead of the relay
during Fast Meter data transfer. The SEL-DTA2 uses a three-sample
average and updates selected outputs every 0.5 second. A signal
transition from zero to full scale will require three Fast Meter updates,
or 1.5 seconds.
If the SEL-DTA2 has defaulted to the standard meter function, it
automatically attempts the Fast Meter function every ten minutes.
You can manually initiate the Fast Meter function from the SEL-DTA2
by entering the SET command. The SEL-DTA2 will initiate the Fast
Meter request once the settings have been accepted, with or without a
setting change. See Command Descriptions on page 3.6 in Section 3:
Communications for information on the SET command.
You can confirm the Fast Meter function by observing the meter
display updating time.
Status There are two ways to enter the STATUS mode.
1. Press the front-panel “STATUS”control.
2. A relay status warning forces the SEL-DTA2 into STATUS
mode.
When the “STATUS”control is pressed, the SEL-DTA2 checks the status of
the relay and displays the received status message (see Relay Status Message).
The “SCROLL”controls can be used to view any two lines of the message.
Fi ure 2.7 Relay Status Messa e
Upon automatic receipt of a relay status warning, the SEL-DTA2 enters the
STATUS mode. The display shows “RELAY STATUS WARNING”in
blinking characters above the message (see Relay Status Warning Message).
Pressing any operative front panel control acknowledges the condition, after
which the STATUS mode functions as previously defined.
Fi ure 2.8 Relay Status Warnin Messa e
The SEL-DTA2 automatically exits the STATUS mode when it receives a fault
report; press “CLEAR,”“METER,”or “FAULTS”to exit manually.
Standby Press the front panel “CLEAR”switch to enter the STANDBY mode; the
following display message indicates STANDBY:
The SEL-DTA2 remains in this mode until:
1. An active display mode is selected by pressing an operative
front panel switch, or
2. The SEL-DTA2 receives a relay status message, or
3. The relay reports a fault to the SEL-DTA2.
DATE: 01/04/90 Time: 08:50:30
OFFSET IP = 0 mV
RELAY STAT S WARNING
DATE: 01/04/90 Time: 08:50:30
SEL-DTA
RELAY ID STRING

2.6
SEL-DTA2 Instruction Manual Date Code 20020329
Specifications
Display Modes
In this mode, only the “FAULTS,”“METER,”“STATUS,”and “CLEAR”
switches are operative.
The “CLEAR”switch function depends on the current SEL-DTA2 mode. In
any mode other than STANDBY, pressing “CLEAR”changes the mode to
STANDBY. If the SEL-DTA2 is already in STANDBY mode, the following
operations occur:
1. The display module is tested for proper operation; if this test
fails, an automatic SEL-DTA2 status message is sent to
SEL-DTA2 serial Port 1.
2. With “CLEAR”asserted, all elements of the display are
actuated, allowing visual verification of proper display
operation.
3. Upon release, the display clears and the SEL-DTA2 returns to
STANDBY mode.

2.7
Date Code 20020329 SEL-DTA2 Instruction Manual
Specifications
Rear Panel Connections and Con igurations
Rear Panel Connections and Con igurations
All connections to the SEL-DTA2 are made on the rear panel, Figure 5.1 on
page 5.1 in Section 5: Maintenance and Testing.
Isolator Input The SEL-DTA2 has one programmable isolator input for control of transducer
and contact output data from a remote system.
ISO1, the RESET input, clears any analog channels set to indicate fault
location and contact outputs A1–A5. After the output quantities are cleared,
the RST ACK contact output (A6) is closed and remains closed for as long as
RESET is asserted. This input is rising-edge sensitive.
Communications
Ports
The SEL-DTA2 has two EIA-232 communications ports, labeled Port 1 and
Port 2. Connect Port 1 to a personal computer. It is used for changing the
analog output scaling and other settings. Connect Port 2 to the relay port
designated automatic for communications with the relay. See Table 3.1 on
page 3.2 in Section 3: Communications. See Table 4.1 on page 4.1 in
Section 4: Installation for a list of cables that connect to Port 1 and Port 2.
Transducer Outputs The SEL-DTA2 is equipped with eight programmable transducer channels.
Each of these is available from the rear panel in voltage (–5 to +5 V) and
current (–1 to 1 mA or –5 to 5 mA) form. The instrument also provides a
separate return to ground for each channel. These signals are presented at the
rear panel through a female 25-pin “D”connector, labeled “Analog”.
For systems requiring screw terminal connections, an optional adapter board
is available, Figure 2.9, which breaks a female 25-pin “D”connector out into
screw terminals. Table 2.1 shows the pin assignments. See Table 4.1 on
page 4.1 in Section 4: Installation for the cable that connects the analog port
to the terminal block adapter.
Fi ure 2.9 DB25 to Terminal Block Adapter
12345678910111213
14 15 16 17 18 19 20 21 22 23 24 25 G
14 15 16 17 18 19 20 21 22 23 24 25 G
"D" connector female
metal housing
Adapter mounts on
panel using 4 standoffs

2.8
SEL-DTA2 Instruction Manual Date Code 20020329
Specifications
Rear Panel Connections and Con igurations
Each output channel is independently programmable with output quantity
(Vab, Ia, Fault Location, etc.) and range.
Contact Outputs The rear panel has six relay contact outputs (A1–A6). These outputs indicate
fault conditions and acknowledge reset commands. An additional relay
contact indicates self-test failure or other alarm conditions. All contact outputs
are dedicated and not programmable. Table 2 .2 shows contact assignments
and signal descriptions.
Table 2.1 Adapter Board Si nal Assi nments
Si nal Description Pin
Voltage output 1
Ground 1
Current output 1
13
25
12
Voltage output 2
Ground 2
Current output 2
11
24
10
Voltage output 3
Ground 3
Current output 3
9
23
8
Voltage output 4
Ground 4
Current output 4
7
22
6
Voltage output 5
Ground 5
Current output 5
5
21
4
Voltage output 6
Ground 6
Current output 6
3
20
2
Voltage output 7
Ground 7
Current output 7
1
19
14
Voltage output 8
Ground 8
Current output 8
15
18
16
Table 2.2 Contact Assi nments and Si nal Descriptions (Sheet 1 of 2)
Te r mina l
Block
Ter min al
Block
Positions
Standard
Contact
Arran ementa
Si nal Description
POWER 1,2,3 N/A +,–,GND AC/DC power to unit.
IS01 4,5 N/A RESET Clears analog channels
indicating fault location, and
clears contacts A1–A5.
A1 6,7 a A The current fault involves Phase
A.
A2 8,9 a B The current fault involves Phase
B.
A3 10,11 a C The current fault involves Phase
C.
A4 12,13 a G The current fault involves
ground.
A5 14,15 a FAULT A fault has occurred.