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Reno

A

&

E

4655

Aircenter

Circle

Reno,

Nevada

89502

U.S.A.

Engineering

Excellence!

Telephone;

(775)

826-2020

Facsimile:

(775)826-9191

Internet:

www.renoae.com

E-mail:

[email protected]

MODEL

"B"

SERIES

Single

Channel

Loop

Detectors

OPERATING

INSTRUCTIONS

Indicators

PWR

Power

LED

STATUS

MEANING

Off

On

No

power

or

low

power

to

detector

Normal

power

to

detector

If

the

supply

voltage

drops

below

75%

of

the

nominal

line

voltage,

the

power

LED

will

turn

"off."

This

provides

a

visual

check

of

low

line

voltage

that

can

be

caused

by

the

start

up

of

a

gate

motor.

The

Model

B

operates

with

line

voltage

as

low

as

85

VAC.

DET

Detect

LED

STATUS

MEANING

Off

Solid

On

4

Hz

Flashing

No

vehicle

present

over

loop

Vehicle

present

over

loop

Vehicle

present

over

loop

for

less

than

2

seconds

(2

Sec.

Delay)

FAIL

Failed

loop

LED

STATUS

MEANING

Off

Solid

On

1

Hz

Flashing,

50%

duty

cycle

1

Hz

Flashing,

5%

duty

cycle

Loop

OK

Open

loop

Shorted

loop

Waiting

for

release

of

FREQ

switch

to

enter

diagnostics

mode

Front

Panel

Switches

(Momentary")

•

FREQ

Selects

one

of

four

loop

frequencies:

(HIGH

/

MH

/

ML

/

LOW).

(Also

used

to

enter

loop

diagnostics

mode).

•

RESET

Resets

the

detector

to

the

"No

Call",

i.e.

no

vehicle

detected

state.

Internal

DIP

Switches

sw#

FEATURE

RANGE

DEFAULT*

VALUE

SWPos

1,2,3

Sensitivity

0-7

3

OFF-ON-ON

4

Output

Delay

On/Off

Off

OFF

5

Sensitivity

Boost

On/Off

Off

OFF

6

Pulse

Mode

Entry

/

Exit

Entry

OFF

7

Presence

Hold

Time

TruePres.

/

Limited

Pres.

TruePres.

OFF

8

Output

B

Mode

Presence

/

Pulse

Pulse

ON

♦♦

*

Default

reflects

factory

settings

as

shipped.

B-#(DP)

models

are

shipped

with

DIP

switch

8

set

OFF

for

Dual

Presence

Configuration.

Sensitivity

(DIP

Switches

1.2.31

Sensitivitv

is

set

using

internal

DIP

switches

1,

2,

&

3

accon

;

to

t

SENSITIVITIES*

SW#

0

I

2

3

4

5

6

7

1

OFF OFF OFF

OFF

ON

ON

ON

ON

2

OFF OFF

ON

ON

OFF

OFF

ON

ON

3

OFF

ON

OFF

ON

OFF

ON

OFF

ON

*

0

=

Lowest,

3

=

Normal,

7

=

Highest

Output

Delay

tPIP

Switch

41

A

two-second

delay

of

Outputs

A

and

B

can

be

activated

by

setting

DIP

switch

4

to

the

ON

position.

Output

delay

is

the

time

the

detector

outputs

are

delayed

after

a

vehicle

first

enters

the

loop

detection

area.

If

the

2

second

Output

Delay

feature

is

activated,

the

output

relays

will

only

be

turned

on

after

2

seconds

has

passed

with

a

vehicle

continuously

present

in

the

loop

detection

area.

If

a

vehicle

leaves

the

loop

detection

area

during

the

2

second

delay

interval,

detection

is

aborted

and

the

next

vehicle

to

enter

the

loop

detection

area

will

initiate

a

new

full

2

second

delay

interval.

By

flashing

the

front

panel

DET

LED

at

4

Hz

with

a

50%

duty

cycle,

the

detector

indicates

that

a

vehicle

is

being

detected

but

that

the

outputs

are

being

delayed.

Sensitivitv

Boost

(DIP

Switch

51

DIP

switch

5

can

be

turned

ON

to

increase

sensitivity

only

during

the

detect

period,

without

changing

the

sensitivity

of

a

vacant

loop.

When

a

vehicle

enters

the

loop,

the

detector

then

automatically

boosts

the

loop

sensitivity

but

only

during

the

detect

condition.

As

soon

as

no

vehicle

is

detected,

the

detector

immediately

returns

to

the

original

sensitivity

level.

This

feature

helps

prevent

dropouts

during

the

passage

of

high-bed

vehicles

and

is

particularly

useful

in

sliding

gate

situations.

Pulse

Mode

(DIP

Switch

61

Output

B

is

the

pulse

output.

The

output

B

relay

can

be

programmed

to

output

a

pulse

only

upon

vehicle

entry

over

the

loop

or

only

upon

vehicle

exit

from

the

loop.

When

DIP

switch

6

is

OFF,

the

detector

will

output

an

"entry

pulse"

each

time

a

vehicle

enters

the

loop

detection

area.

When

DIP

switch

6

is

ON,

the

detector

will

output

an

"exit

pulse"

each

time

a

vehicle

leaves

the

loop

detection

area.

The

factory

default

is

OFF,

i.e.

entry

pulse.

(DIP

switch

6

has

no

effect

on

Output

A,

the

presence

output).

Presence

Hold

Time

(DIP

Switch

7)

Output

A

is

the

presence

output.

The

detector

has

two

presence

hold

time

modes:

TruePresence™

and

Limited

Presence.

Both

modes

output

a

"Call",

i.e.

vehicle

detected,

for

as

long

as

a

vehicle

is

present

in

the

loop

detection

area.

TruePresence™

will

hold

the

Call

for

as

long

as

the

vehicle

is

present

and

power

is

not

removed

or

reset

applied.

Limited

Presence

will

typically

hold

the

Call

output

for

about

one

to

three

hours.

The

TruePresence™

time

provides

a

detection

output

condition

for

the

entire

time

the

vehicle

is

present

in

the

loop

zone.

The

TruePresence™

time

applies

only

for

normal

size

automobiles

and

trucks

and

for

normal

size

loops

(approximately

12

ft

^

—

120

ft

).

The

factory

default

for

DIP

switch

7

is

OFF,

i.e.

TruePresence™

mode

By

setting

DIP

switch

7

ON,

the

detector

will

operate

in

Limited

Presence

mode.

Output

B

Mode

(DIP

Switch

8)

The

Output

B

relay

has

two

modes

of

operation;

either

Pulse

(ON)

or

Presence

(OFF).

When

in

the

pulse

mode,

the

pulse

can

be

either

pulse

on

entry

or

pulse

on

exit

(see

"Pulse

Mode

-

DIP

switch

6").

When

in

the

presence

mode,

the

presence

hold

time

is

the

same

as

Output

A

(see

"Presence

Hold

Time

-

DIP

switch

7).

FreaufinfY

Loop

frequency

is

controlled

by

the

FREQ

switch

on

the

fr

ont

panel.

Sometimes

when

loops

are

in

close

proximity,

it

may

he

necessary

to

select

different

frequencies

for

each

loop

to

avoid

loop

interference

~

commonly

known

as

crosstalk.

Four

frequencies

labeled

"High"

to

"Low"

are

available.

Each

time

the

FREQ

button

is

momentarily

pushed,

the

next

higher

frequency

is

selected.

The

next

frequency

aiter

High

is

Low.

Note:

Immediately

after

each

change

of

frequency,

the

detector

is

automatically

reset;

therefore

there

is

no

need

to

push

the

RESET

button.

Call

Memory

.

„

,

„

,

When

power

is

removed

for

2

seconds

or

less,

the

detector

automatically

remembers

if

a

vehicle

was

present

and

a

Call

was

in

effect.

When

power

is

restored,

the

detector

will

continue

to

output

a

Call

until

the

vehicle

leaves

the

loop.

(Power

loss

or

dips

of

2

seconds

or

less

will

not

bring

a

gate

arm

down

onto

cars

as

they

wait

at

the

gate).

Failed

I.nnn

Diagnostics

The

FAIL

LED

indicates

whether

or

not

the

loop

is

currently

within

tolerance.

If

out

of

tolerance,

the

LED

indicates

whether

the

loop

circuit

is

shorted

or

open.

If

and

when

the

loop

returns

to

within

tolerance,

the

FAIL

LED

will

resume

the

OFF

condition

indicating

"Loop

OK".

Additionally,

the

detector

automatically

stores

the

last

loop

failure

type

in

non-volatile

memory.

To

determine

the

last

loop

failure,

press

the

FREQ

key

for

three

seconds

or

more.

When

the

FAIL

LED

begins

fl

ashing

at

1

Hz

with

5%

duty

cycle,

release

the

FREQ

key.

The

detector

will

then

display

the

last

loop

failure

type

detected

(if

any).

This

indication

will

be

displayed

one

time

for

about

fifteen

seconds

unless

terminated

by

pressing

the

RESET

or

FREQ

key.

The

non-volatile

memory

used

to

store

the

last

loop

failure

type

is

automatically

cleared

each

time

it

is

interrogated.

Fail

Mode

Two

versions

of

the

Model

B

detector

are

manufactured:

Fail

Safe,

Model

B-#,

and

Fail

Secure,

Model

B-#(S).

In

the

Fail

Safe

version,

when

the

loop

fails

in

any

manner

or

power

is

removed,

the

Output

A

relay

assumes

the

state

indicating

Call.

In

the

Fail

Secure

version,

when

the

loop

fails

in

any

manner

or

power

is

removed,

the

Output

A

relay

assumes

the

state

indicating

No

Call.

N.O.

Contact

State

FAIL

SAFE

OPERATION

FAIL

SECURE

OPERATION

Power

Failure

Loop

Failure

Power

Failure

Loop

Failure

Relay

A

Call

Call

No

Call

No

Call

Relay

B

No

Call

No

Call

No

Call

No

Call

Note

1:

The

Output

B

pulse

relay

always

operates

in

Fail

Secure

mode,

i.e.

no

Call

is

indicated

during

failure

conditions.

Pin

Connections:

Harness

Model

802-4

PIN

COLOR

FUNCTION

1

BLACK

POWER,

HOT

or

(+)*

2

WHITE

POWER,

NEUTRAL

or

(-)*

3

OFIANGE

OUTPUT

B,

NORMALLY

OPEN

4

GREEN

(no

connection)

S

YELLOW

OUTPUT

A,

COMMON

6

BLUE

OUTPUT

A,

NORMALLY

OPEN

7

GRAY

LOOP

8

BROWN

LOOP

9

RED

OUTPUT

B,

COMMON

10

VIOLET,

or

OUTPUT

A,

NORMALLY

CLOSED

WHITE/BLACK

11

WHITE/GREEN,

or

OUTPUT

B,

NORMALLY

CLOSED

WHITE/RED

Pin

Connections:

Harness

Model

801-4

PIN

HARNESS

COLOR

FUNCTION

A

WHITE

POWER,

NEUTRAL

or

(-)*

B

BROWN

OUTPUT

A,

NORMALLY

OPEN

C

BLACK

POWER,

HOT

or

(+)*

D

RED

LOOP

E

ORANGE

LOOP

F

YELLOW

OUTPUT

A,

COMMON

G

BLUE

OUTPUT

A,

NORMALLY

CLOSED

H

GREEN

CHASSIS

GROUND

1

VIOLET

OUTPUT

B,

COMMON

J

GRAY

OUTPUT

B,

NORMALLY

OPEN

NOTE:

All

Contacts

above

are

shown

for

power

applied,

loops

connected

and

no

vehicle

present.

The

Output

B

(pulse

relay)

always

operates

in

Fail

Secure

mode

(i.e.,

NO

CALL

is

indicated

during

failure

conditions).

*

24

VAC,

120

VAC,

and

240

VAC

versions

of

Model

B

detectors

and

12

VDC

and

24

VDC

versions

of

Model

B

detectors

are

available,

see

label

on

detector.

Loop

Installation

Mark

the

loop

layout

on

tt'ie

pavement.

Remove

sharp

inside

comers

that

can

damage

the

loop

wire

insulation.

Set

the

saw

to

cut

to

a

depth

(typically

2"

to

2.5")

that

insures

a

minimum

of

1"

from

the

top

of

the

wire

to

pavement

surface.

The

saw

cut

width

should

be

larger

than

the

wire

dianeter

to

avoid

damage

to

the

wire

insulation

when

placed

in

the

saw

slot.

Cut

the

loop

and

feeder

slots.

Remove

all

debris

from

the

saw

slot

with

compressed

air.

Check

that

the

bottom

of

the

slot

is

even.

It

is

highly

recommended

that

a

continuous

lengtii

of

wire

be

used

to

form

the

loop

and

feeder

to

the

detector.

Loop

wire

is

typically

14,

16,

18

or

20

AWG

with

cross-link

polyethylene

insulation.

Use

a

wood

stick

or

roller

to

insert

the

wire

to

the

bottom

of

the

saw

slot

(do

not

use

sharp

objects).

Nftfrap

the

wire

in

the

loop

saw

cut

until

the

desired

number

of

turns

is

reached.

Each

turn

of

wire

must

lay

flat

on

top

of

the

previous

ti/n.

"

The

wire

must

be

twisted

together

a

minimum

of

6

twists

per

foot

from

the

end

of

the

saw

cut

to

the

ctetector.

<^>—

The

wire

must

be

held

firmly

in

the

slot

witfi

1"

pieces

of

backer

rod

every

1

to

2

feet.

This

prevents

the

wire

from

floating

when

the

loop

sealant

is

applied.

Apply

the

sealant.

The

sealant

selected

should

have

good

adhering

properties

with

similar

contr^ion

and

expaision

characteristics

to

that

of

the

pavement

material.

LOOP

PERIMETER

ffeetl

10-13

14-26

27-80

80-up

1/8"

to

1/4"

SAW

SLOT

THE

WIRE

IS

CONTINUOUSLY

WOUND

IN

THE

LOOP

SAW

SLOT

FOR

THE

REQUIRED

NUMBER

OF

TURNS

(2

turns

shown)

^

.

4.

NUMBER

ofTURNS

4

3

2

-turn

1"

1

ROAD

SURFACE

SEALANT

~

BACKER

ROD

1"

piece

spaced

REMOVE

SHARP

«bout

every

V

INSIDE

CORNERS

LOOP

WIRE

3

TURNS

THE

WIRES

MUST

BE

TWISTED

TOGETHER

6

TWISTS

PER

FOOT

FROM

THE

END

OF

THE

SAW

CUT

TO

THE

DETECTOR

->■

SAW

SLOT

FEEDER

SLOT

Recommended

Loop

Wire;

Reno

A &

E

Reno

A

&

E

END

OF

SAW

CUT

LW-120

for

1/8-inch

saw

slots

LW-116-S

for

1/4-inch

saw

slots

FILE:

Model

B

operating

instructions

8/20/99