Basler Electric BE1-64F User Manual

INSTRUCTION MANUAL

FOR

GROUND FAULT RELAY

BE1-64F

Publication: 9367200990
Revision: B 02/14

INTRODUCTION

This instruction manual provides information about the operation and installation of the BE1-64F Ground
Fault Relay. To accomplish this, the following information is provided.

 General Information and Specifications
 Controls and Indicators
 Functional Description
 Installation
 Testing

WARNING!

To avoid personal injury or equipment damage, only qualified personnel should
perform the procedures in this manual.

NOTE

Be sure that the relay is hard-wired to earth ground with no smaller than 12 AWG
copper wire attached to the ground terminal on the rear of the unit case. When
the relay is configured in a system with other devices, it is recommended to use a
separate lead to the ground bus from each unit.

9367200990 Rev B BE1-64F Introduction i

First Printing: March 2005

Printed in USA

© 2014 Basler Electric, Highland Illinois, USA

All Rights Reserved

February 2014

Basler Electric does not assume any responsibility for compliance or noncompliance with national code,
local code, or any other applicable code. This manual serves as reference material that must be well
understood prior to installation, operation, or maintenance.

For terms of service relating to this product and software, see the Commercial Terms of Product and
Services document available at www.basler.com/terms.

This publication contains confidential information of Basler Electric Company, an Illinois corporation. It is
loaned for confidential use, subject to return on request, and with the mutual understanding that it will not
be used in any manner detrimental to the interests of Basler Electric Company and used strictly for the
purpose intended.

It is not the intention of this manual to cover all details and variations in equipment, nor does this manual
provide data for every possible contingency regarding installation or operation. The availability and design
of all features and options are subject to modification without notice. Should further information be
required, contact Basler Electric.

The English-language version of this manual serves as the only approved manual version.

Basler Electric

12570 State Route 143

Highland IL 62249-1074 USA

www.basler.com, [e-mail]

PHONE [phone] FAX [phone]

ii BE1-64F Introduction 9367200990 Rev B

REVISION HISTORY

Hardware

Version and Date

Change

C, 03/05

• Initial release

D, 01/08

• Released part number 9367200104

E, 02/14

• Rear panel overlay revised with thicker material

Manual

Revision and Date

Change

—, 03/05

• Initial release

A, 01/08

• Added coverage of part number 9367200104

• Added CE compliance information

B, 02/14

• Updated product dimensions to reflect thicker rear panel overlay

• Added electrolytic capacitor maintenance recom m endation

The following information provides a historical summary of the changes made to the BE1-64F hardware.
The corresponding revisions made to this instruction manual (9367200990) are also summarized.
Revisions are listed in chronological order.

• Corrected output contact ratings

9367200990 Rev B BE1-64F Introduction iii

iv BE1-64F Introduction 9367200990 Rev B

CONTENTS

SECTION 1 • GENERAL INFORMATION ................................................................................................ 1-1

INTRODUCTION ................................................................................................................................. 1-1

SPECIFICATIONS .............................................................................................................................. 1-1

Operating Power ........................................................................................................................... 1-1

Field Voltage Input ........................................................................................................................ 1-1

Block Input .................................................................................................................................... 1-1

Operating Time ............................................................................................................................. 1-1

Sensitivity ...................................................................................................................................... 1-1

Output Contacts ............................................................................................................................ 1-2

Temperature ................................................................................................................................. 1-2

Type Tests .................................................................................................................................... 1-2

Agency Recognition ...................................................................................................................... 1-3

Weight ........................................................................................................................................... 1-3

Dimensions ................................................................................................................................... 1-3

SECTION 2 • HUMAN-M ACHINE INTERF ACE ....................................................................................... 2-1

CONTROLS AND INDICATORS ........................................................................................................ 2-1

SECTION 3 • FUNCTIONAL DESCRIPTION ........................................................................................... 3-1

INTRODUCTION ................................................................................................................................. 3-1

BE1-64F FUNCTION BLOCKS ........................................................................................................... 3-1

Power Input................................................................................................................................... 3-1

Power Supplies ............................................................................................................................. 3-1

Block Input .................................................................................................................................... 3-2

Field (F–) and Rotor Ground Interface ......................................................................................... 3-2

Current Detector and Reference .................................................................................................. 3-2

Alarm Comparator ........................................................................................................................ 3-2

Pre-Alarm Output Contact ............................................................................................................ 3-2

Trip Comparator ........................................................................................................................... 3-2

Gnd Trip Output Contact .............................................................................................................. 3-2

Loss of AC Power Alarm Output Contact ..................................................................................... 3-2

Target ........................................................................................................................................... 3-2

Reset ............................................................................................................................................ 3-2

Trip/Test ........................................................................................................................................ 3-3

SECTION 4 • INSTALLATION .................................................................................................................. 4-1

MOUNTING ......................................................................................................................................... 4-1

STORAGE ........................................................................................................................................... 4-4

PRE-ALARM JUMPER ....................................................................................................................... 4-4

CONNECTIONS .................................................................................................................................. 4-5

SECTION 5 • TESTING ............................................................................................................................ 5-1

TESTING BE1-64F OPERATION ....................................................................................................... 5-1

Test Setup .................................................................................................................................... 5-1

Power-Up ...................................................................................................................................... 5-1

Trip/Test Pushbuttons .................................................................................................................. 5-1

Target Retention ........................................................................................................................... 5-1

Pre-Alarm ...................................................................................................................................... 5-1

Ground Trip................................................................................................................................... 5-1

Block Input .................................................................................................................................... 5-3

9367200990 Rev B BE1-64F Introduction v

vi BE1-64F Introduction 9367200990 Rev B

SECTION 1 • GENERAL INFORMATION

INTRODUCTION

The BE1-64F Ground F au lt Re lay d et ects and an nunciates ground fa ults in the normally un groun ded field
circuit of a synchronous ma chine. A short-circuit in a s ynchronous mac hine’s f ield can ofte n be prev ented
by detecting and removing a ground fault before a second ground fault results in serious damage.

BE1-64F relays are compa tible with continuous field voltages up to 600 Vdc and forcing voltages up to
750 Vdc for one minut e. During rever se excitatio n (negative forc ing), BE1-6 4F relays will w ithstand up to
1,200 Vdc for one minute.

NOTE

To ensure protection again st field grounds, the rotor iron must be gro unded. Do
not rely on a ground path through the rotor bearings. Grounding must not be
installed where it bypasses the bearing insulation that prevents shaft currents.
Rotor grounding recommendations for a machine should be obtained from the
machine manufacturer.

Two sets of relay outputs and front pan el indicators are prov ided for fault annunci ation and tripping duty.
One set of output contacts, one front panel indicator, and a latching target indicator annunciate the
detection of a ground fault in the f ield wi nding. A secon d set of out put c ontacts and a fr ont pane l indica tor
annunciate the detection of lower than normal resistance across the field winding and ground.

Replacement of an AB B 64F with the BE1-64F is si mplified beca use the pane l cutout and dr illing pattern
for the BE1-64F matches th at of the ABB 64F.

SPECIFICATIONS

BE1-64F electrical and physical specifications are listed in the following paragraphs.

Operating Power

Voltage Range: 90 to 132 Vac
Frequency: 50/60 Hz
Burden: 150 mAac nominal, 200 mAac maximum
Terminals: A11 (N), A12 (L), A13 (GND)

Field Voltage Input

Continuous Rating: 600 Vdc
One Minute Forcing: 750 Vdc
One Minute Negative Forcing: 1,200 Vdc
Terminals: A1 (F–), A3 (GND (CORE))

Block Input

Turn-On Threshold: 70 Vac, ±20 Vac
Operating Range: 90 to 132 Vac
Frequency: 50/60 Hz
Burden: 2 mAac
Terminals: A10 (L), A11 (N)

Operating Time

At 95% of Trip Value: ≤1 s

Sensitivity

Expressed as resistance from field negative lead to ground. See Figure 1-1 for the sensitivity
characteristic. In Fi gure 1-1, the dc fault v oltage is the field v oltage measured from t he negative lead to
the faulted point in the field winding.

9367200990 Rev B BE1-64F General Information 1-1

Trip Function: 5,000 Ω, ±200 Ω
Pre-Alarm Function: 20,000 Ω, ±1,000 Ω

Typical Sensitivity

900
800
700
600
500
400
300
200
100

Relay Sensitivity in k-ohms

0

0 100 200 300 400 500 600 700

DC Fault Voltage

Figure 1-1. Sensitivity Characteristic

Output Contacts

Type: Form A, B
Functions: Ground Trip, Pre-Alarm, Power Fail

Alarm
Trip

Resistive Ratings

120/240 Vac: Make 30 Aac for 0.2 s, carry 7 Aac continuously, and break 7 Aac
250 Vdc: Make and carry 30 Adc for 0.2 s, carry 7 Adc continuously, and

break 0.3 Adc

500 Vdc: Make and carry 15 Adc for 0.2 s, carry 7 Adc continuously, and

break 0.1 Adc

Inductive Ratings

120/240 Vac, 125/250 Vdc: Make and carry 30 A for 0.2 s, carry 7 A continuously, and

break 0.3 A (L/R = 0.04)

Contact Configurations

Ground Trip: Form A, close on ground trip condition
Pre-Alarm: Form A, close on pre-alarm condition
Power Fail: Form B, close on loss of operating power

Terminal Assignments

Ground Trip: A6, A7
Pre-Alarm: A4, A5
Power Fail: A8, A9

Temperature

Operating: –40 to 70°C (–40 to 158°F)
Storage: –40 to 85°C (–40 to 185°F)

Type Tests

Vibration: IEC 255-21-1
Shock: IEC 255-21-2
Surge Withstand Capability: IEEE C37.90.1-1989
Radio Interference: IEC 61000-4-3
Electrostatic Discharge: IEC 255-22-2
Isolation: Power, Block inputs withstand 1,500 Vac for one minute. Output contact

sets withstand 2,000 Vac for one minute. Field connection tested to
IEEE 421.3.

1-2 BE1-64F General Information 9367200990 Rev B

Agency Recognition

UL Recognized Component
Recognized per UL Standard 50 8, CSA Standard C22.2 No. 14, and UL 1053, Standar d for Safety for

Ground-Fault Sensing and Relaying Equipment
CE Compliance

This product has bee n evaluated and complies with the releva nt essential requirements set f orth by the
EU legislation.

EC Directives:

• Low Voltage Devices (LVD) – 72/23EEC as amended by 93/68/EEC

• Electromagnetic Compatibility (EMC) – 89336/EEC as amended by 92/31/EEC and 93/68/EEC

Harmonized Standards Used for Evaluation:

• EN 50178: Electronic Equ ip ment for use in Power Installations

• EN 61000-6-2: Electromagnetic Compatibility (EMC),Generic Stan dar ds , Immunity for Industrial

Environments

• EN 61000-6-4: Electromagnetic Compatibility (EMC), Generic Stan dar ds, Emission Standard for
Industrial Environments

Weight

Unit: 4.65 lb (2.11 kg)
Shipping: 6.10 lb (2.77 kg)

Dimensions

Height, Width, Depth: 4.875 in, 7.0 in, 8.693 in (123.8 mm, 177.8 mm, 220.8 mm)

9367200990 Rev B BE1-64F General Information 1-3

1-4 BE1-64F General Information 9367200990 Rev B

SECTION 2 • HUMAN-MACHINE INTERFACE

CONTROLS AND INDICATORS

The BE1-64F human-machine interface (HMI) consists of pushbuttons and light-emitting diode (LED)
indicators located o n the relay front pan el. Figure 2-1 illustrates the BE1-6 4F HMI. Table 2-1 r eferences
the locators in Figure 2-1 and provides a description of each BE1-64F control and indicator.

NOTE

Because BE1-64F relays with part number 9367200104 are not equipped with
Trip/Test pushbuttons, loca tors A an d H in F igure 2-1 and Table 2-1 do no t ap ply
to these relays.

Figure 2-1. BE1-64F Controls and Indicators

Table 2-1. BE1-64F Control and Indicator Descriptions

Locator Description

A Trip/Test Pushbut ton. Simultaneously pushing the two Trip/Test pushbuttons ( locators A

and H) causes the Ground Trip outpu t contac ts to clos e, the Pre-Alarm output contacts to
close, the Trip Ou tput i nd icator (l oc ator E) t o l ig ht, t he Alarm output indic ator (locator D) to
light, and the Trip Target indicat or (locator G) to latch on. This control is not pr ovided on
BE1-64F relays with part number 9367200104.

B Power Status Indicator. This green LED lights when operating power is applied to the

relay.

9367200990 Rev B BE1-64F Human-Mach ine In t erface 2-1

Locator Description

C Inhibit Status Indicator. Thi s red LED lights when the Block input is ener gized and BE1-

64F tripping is disabled.

D

E

F Target R eset Pus h butt on. This c ontrol is pr es sed to r es et the latc h ing T r ip Targe t indica tor

G Trip Target Indicator. This red indicator latches on when the Ground Trip output closes

H Trip/Test Pushbutton. Simultaneous ly pushing the two Trip/Test pushbuttons (locators A

Alarm Output Indicator. This red LED lights when the relay senses less than 20 kΩ of
resistance from the mac hin e field to gr ound a nd the Pr e-Alarm output contacts clo se. This
function may be disabled by a user-adjustable jumper located on the draw-out printed
circuit board. See Section 4, Installation for the jumper location and jumper placement
instructions.

Trip Output Indicator. This red LED lights when the relay senses less than 5 kΩ of
resistance from the machine field to ground and the Ground Trip output contacts close.

(locator G) after a ground in the machine field circuit has been removed.

due to a ground in the machine field circuit. Target status is maintained when relay
operating power is remov ed. Wh en relay operati ng po wer is restor ed, the Tr ip Ta rget LE D
indicates the target status prior to the removal of operating power. The Trip Target
indicator is reset by operating the Target Reset pushbutton (locator F).

and H) causes the Ground Trip outpu t contac ts to clos e, the Pre-Alarm output contacts to
close, the Trip Ou tput i nd icator (l oc ator E) t o l ig ht, t he Alarm output indic ator (locator D) to
light, and the Trip Target indicat or (locator G) to latch on. This control is not pr ovided on
BE1-64F relays with part number 9367200104.

2-2 BE1-64F Human-Machine Interface 9367200990 Rev B

SECTION 3 • FUNCTIONAL DESCRIPT ION

POWER INPUT

BLOCK INPUT

LOSS OF AC

POWER

ALARM

OUTPUT

CONTACT

POWER

SUPPLIES

FIELD (F-) AND

ROTOR

GROUND

INTERFACE

CURRENT

DETECTOR AND

REFERENCE

TRIP

COMPARATOR

ALARM

COMPARATOR

GND TRIP

OUTPUT

CONTACT

PRE-ALARM

OUTPUT

CONTACT

TRIP/ TEST

(Not supplied on

P/N 9367200104)

TARGET

RESET

TO INTERNAL

CIRCUITS

A1:

F-

A3:

GND

(CORE)

A10:
LINE

A11:

NEUTRAL

A12:
LINE

A13:

CHASSIS

GND

A6

PRE-

ALARM

A4

A5

A8

A9

GND
TRIP

PWR

FAIL

A7

P0024-16

INTRODUCTION

The BE1-64F Ground F au lt Re lay d et ects and an nunciates ground fa ults in the normally un groun ded field
circuit of a synchronous machine.

The BE1-64F applies a dc v oltage between the fiel d circuit and ground. When a ground fault occ urs, the
BE1-64F detects the flow of curr ent and annunciates the fault. De tection of gr ound faul ts by the BE1-64F
depends upon the nominal field voltage and the location of the ground fault in the field winding.

BE1-64F FUNCTION BLOCKS

BE1-64F func tions are illustrated in Figure 3-1. The fol lowing paragraphs describe eac h of the function
blocks illustrated in Figure 3-1.

Figure 3-1. BE1-64F Function Block Diagram

Power Input

Operating power ap plied to terminals A12 (line) an d A11 (neutral) is stepped down and applied to the
power supplies in the relay. The power input accepts voltage in the range of 90 to 132 Vac.

Power Supplies

Stepped-down ac vo ltage from the power input is rec tified, filtered, and r egulated. The power supplies
apply regulated dc voltage to internal relay circuitry and supply the dc voltage impressed across the
protected circuit and ground.

9367200990 Rev B BE1-64F Functional Description 3-1

Block Input

Applying voltage to ter minals A10 (l ine) and A11 ( neutral) disa bles the relay alarm and trip functio ns and
removes the dc voltage impressed across the protected circuit and ground. The block input accepts
voltage in the range of 90 to 132 Vac. Note that the block input shares terminal A11 (neutral) with the
power input.

Field (F–) and Rotor Ground Interface

This interface supplies approximately 55 Vdc to the protec ted circuit through terminals A1 (F –) and A3
(GND (CORE)). This interface voltage is removed when the block input is energized.

Current Detector and Reference

If a ground fault occurs bet w een th e protec t ed c irc uit a nd gr oun d, fa ult c urr ent f lo ws fr om termin al A1 (F–)
to A3 (GND (CORE)). This fault cur rent is measured and scaled by the c urrent detector. A com pensated
reference is also deve loped for comparison with th e scaled current det ector output level. The referenc e
and current detector levels are supplied to the trip comparator and alarm comparator circuits for use in the
determination of alarm and trip conditions.

Alarm Comparator

The alarm comparator compares the output level of the current detector with a scaled version of the
reference output. An alarm condition is determined if t he current detec tor outp ut level exceeds the scaled
reference output level for a pproximate ly 0.75 seconds. When an alarm cond ition is determined, th e alarm
comparator sends a sign al to the pre-alarm output contact circuit. The pre-alarm output contact clos es
and the front panel Alarm LED lights for as long as the alarm condition exists.

Pre-Alarm Output Contact

This circuit is contr olled by the alarm comp arator out put and clos es the output contact for the duration of
an alarm condition (unless the block inp ut is energized) . Connections to the pre-alarm output contact ar e
made at terminals A4 and A5 (PRE-ALARM).

Trip Comparator

The output levels of the current detector and reference are compared by the trip comparator. A trip
condition is determined when the current detector output level exceeds the reference output level for
approximately 0.75 s econds . During a tr ip condit ion, the tr ip compar ator sends a s ignal to t he ground tr ip
output contact circui t, the g round tr ip output contact c loses, the front pa nel Out put Trip and Output Alarm
LEDs light, and the Target Trip LED l atches on. If the trip cond ition is cleared, th e Output Trip and Alar m
LEDs turn off, but the Target Trip LED remains on until the Target Reset pushbutton is pressed.

Gnd Trip Output Contact

This circuit is contr olled by the tr ip comparator outp ut and closes t he output cont act for the durat ion of a
trip condition (unles s the block input is ener g iz ed). C o nnect ions to the gnd trip output co ntac t ar e m ade at
terminals A6 and A7 (GND TRIP).

Loss of AC Power Alarm Output Contact

This output contact is open during normal operation and closes when relay operating power is lost.
Contact connections are made at terminals A8 and A9 (PWR FAIL).

Target

The target circuit latc hes t h e fr ont pa nel Tar get T rip L ED o n w h en a tr ip oc c urs . T he target circuit remains
latched even when rel ay oper ating po wer is l ost. Pres s ing the fro nt pane l Targe t R eset pushbutton resets
the target and Target Trip LED (unless an active trip condition is present).

Reset

The reset circuit responds to the front panel Target Reset pushbutton and returns the target to an
untripped condition (unless an active trip condition is present).

3-2 BE1-64F Functional Description 9367200990 Rev B

Trip/Test

The trip/test circuit tes ts rel ay func tionality by int erna lly s imulating a trip co nditio n. A tr ip or t est is i nitiat ed
by pressing the two front panel Trip/Test pushbuttons simultaneously. The simulated trip condition is
removed when either or both of the T rip/Test pushb uttons are rele ased. The Tar get Trip LED rema ins lit
until the Target Reset pushbutton is pressed.

The trip/test function is not provided on BE1-64F relays with part number 9367200104.

9367200990 Rev B BE1-64F Functional Description 3-3

3-4 BE1-64F Functional Description 9367200990 Rev B

SECTION 4  INSTALLATION

MOUNTING

Figures 4-1 through 4-3 show the overall dimensions of the BE1-64F. Figure 4-1 shows the front view,
Figure 4-2 shows the side view, and Figure 4-3 shows the top view. A panel cutting and drilling diagram is
provided in Figure 4-4. All dimensions are shown in inches with millimeters in parenthesis.

Figure 4-1. BE1-64F Dimensions, Front View

Figure 4-2. BE1-64F Dimensions, Side View

9367200990 Rev B BE1-64F Installation 4-1

Figure 4-3. BE1-64F Dimensions, Top View

4-2 BE1-64F Installation 9367200990 Rev B

Figure 4-4. BE1-64F Cutout and Drilling Diagram

9367200990 Rev B BE1-64F Installation 4-3

STORAGE

If the BE1-64F relay will not be installed immediately, store it in its original shipping carton in a moisture­and dust-free environment.

This device contains long-life, aluminum electrolytic capacitors. For devices that are not in service (spares
in storage), the life of these capacitors can be maximized by energizing the BE1-64F for 30 minutes once
per year.

PRE-ALARM JUMPER

The pre-alarm jumper (J1) can be positioned by the user to enable or disable pre-alarm annunciation. J1
is located on the circuit board of the draw-out assembly (Figure 4-5). J1 is accessed by loosening the two
captive front-panel screws and removing the draw-out assembly from the case.

Figure 4-5. Pre-Alarm Jumper Location

CAUTION

Observe all applicable electrostatic discharge (ESD) precautions when handling
the draw-out assembly.

Table 4-1 lists the jumper positions required to enable and disable the pre-alarm function.

Table 4-1. Pre-Alarm Jumper Positions

Pre-Alarm Annunciation Jumper Position (P1 Pins)

Enabled 1 to 2

Disabled 2 to 3

4-4 BE1-64F Installation 9367200990 Rev B

CONNECTIONS

Figure 4-6 illustrates the BE1-64F terminal connections.

Figure 4-6. BE1-64F Terminal Connections

Figure 4-7 shows BE1-64F connections for a typical application.

9367200990 Rev B BE1-64F Installation 4-5

Figure 4-7. BE1-64F Typical Connections

4-6 BE1-64F Installation 9367200990 Rev B

SECTION 5 • TESTING

TESTING BE1-64F OPERATION

To test BE1-64F operation, perform the following procedures.

Test Setup

Prepare the relay for testing by m aking the connecti ons shown in F igure 5-1. Se t switches S1 and S 2 in
the positions indicated by Figure 5-1.

Power-Up

1. Prior to applying relay oper ating po wer, v erify t hat the Power F ail out put co ntacts at ter minals A8 an d
A9 are closed.

2. Apply 120 Vac oper ating power to terminals A11 and A12. The Power Fail output cont acts should
open.

3. Press the Target Reset pushbutton. All front panel indicators should be off except for the green
Power Status LED. The Pre-Alarm output contacts at terminals A4 and A5 and the Ground Trip output
contacts at terminals A6 and A7 should be open.

Trip/Test Pushbuttons

BE1-64F relays with part number 9367200104 are not equipped with the Trip/Test function and push­buttons. The following steps do not apply to relays with this part number.

1. Press and hold both front pane l Trip/Test pushbutton s. The Pre-Alarm output co ntacts (terminals A4
and A5) and Ground Trip outp ut contacts (terminals A6 and A7) should close, the front pane l Alarm
Output and Trip Output LEDs should light, and the Trip Target LED should latch on.

2. Release the Trip/Test pushbuttons. The Pre-Alar m output contacts and Grou nd Trip output contacts
should open and the Alar m Output and Trip Output LEDs should turn off. The latc hing Trip Target
LED should remain on.

Target Retention

1. Perform steps 1 and 2 of Trip/Test Pushbuttons so that the Trip Target LED is latched on.

2. Remove operating pow er fr om t he re lay. Wa it s everal sec onds an d then apply rel ay opera ting power.
Verify that target status is r etained by obs erving that the Tr ip Target LED lights when relay oper ating
power is restored.

3. Reset the Trip Target LED by pressing the Target Reset pushbutton.

Pre-Alarm

1. Place switch S1 in the Pre-Alarm position so that the 16 kΩ resistor is connected between relay
terminals A1 and A3. The Pre-Alarm outp ut contacts should close and the front panel Alar m Output
LED should light.

2. Return switch S1 to the positi on show n in F ig ure 5-1. The Pre-Alarm output contacts should open and
the Alarm Output LED should turn off.

Ground Trip

1. Place switch S1 in the Ground Alarm position so that the 4 kΩ resistor is connected between
terminals A1 and A3. The G round T rip out p ut contacts should close, the T r ip O ut put L ED s hou ld light,
and the Trip Target LED should latch on.

2. Return switch S1 to the position show n in Figure 5-1. The Ground Trip ou tput contacts sho uld open
and the Trip Output LED should tur n off. The Trip Target LED will remain lit until the Targ et Reset
pushbutton is pressed.

9367200990 Rev B BE1-64F Testing 5-1

Figure 5-1. BE1-64F Test Setup

5-2 BE1-64F Testing 9367200990 Rev B

Block Input

1. Place switch S2 in the closed position.

2. Place switch S1 in the Pre-Alarm position. The relay should not respond with an output contact
closure or a front panel indication.

3. Place S1 in the Ground Alarm posit ion. The relay should not respon d with an output contact closure
or a front panel indication.

4. Open switch S2 and verify that the relay responds to the ground alarm condition.

9367200990 Rev B BE1-64F Testing 5-3

5-4 BE1-64F Testing 9367200990 Rev B

12570 State R oute 143
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