Reno A&E S-1300 Operations Manual
Model S-1300 Series
MODEL S-1300
Loop Detector
Operations Manual
Two Channel Menu Driven Programmable Inductive Loop
Detector
Built-in Loop Analyzer for Each Channel
This manual contains technical in formation for the
Model S-1300 Loop Detector
pn 889-1908-00 Revision: April 2020
THE FOLLOWING PRODUCT WAS DESIGNED, INSPECTED , TESTED AND
MANUFACTURED IN THE USA BY EBERLE DESIGN, INC. IN PHOENIX, ARIZONA.
INFORMATION CONTAINED HEREIN IS PROPR IETARY TECHNICAL INFORMATION OF
EBERLE DESIGN, INC. PUBLICATION, REPRODUCTION OR USE IN WHOLE OR PART IS
NOT PERMITTED EXCEPT UNDER TERMS AGREED UPON IN WRITING. ALL
REGISTERED TRADEMARKS OF EBERLE DESIGN INC. ARE UNDER
IT IS AN EBERLE DESIGN, INC. RECOMMENDATION THAT EACH UNIT BE TESTED
AT LEAST ANNUALLY TO ENSURE COMPLIANCE WITH FACTO RY
SPECIFICATIONS AND MEETS PROPER OPERATIONAL STANDARDS. THE
RESULTS OF THIS TESTING WILL BE DOCU M EN T ED .
© COPYRIGHT
MAINTENANCE NOTE
Model S-1300 Operations Manual
Table of Contents
Section 1 General Description .......................................................................................................... 1
Section 2 General Characteristics .................................................................................................... 2
2.1 Loop Frequency ..................................................................................................................... 2
2.2 Sensitivity .............................................................................................................................. 2
2.3 Presence / Pulse ..................................................................................................................... 2
2.4 Call Delay .............................................................................................................................. 2
2.5 Call Exte ns ion ........................................................................................................................ 2
2.6 Max Presence Timer .............................................................................................................. 2
2.7 End-Of-Green (EOG) ............................................................................................................. 3
2.8 Option 1: Loop Inductance Display ....................................................................................... 3
2.9 Option 2: Loop Inductance -∆L/ L Display ............................................................................. 3
2.10 Option 3: Call Ext ension Control ......................................................................................... 3
2.11 Option 4: Noise Filter Disable ............................................................................................. 3
2.12 Option 5: Phase Green Loop Compensation ........................................................................ 4
2.13 Option 9: Third Car Passage ................................................................................................ 4
2.14 Option 10: Direc tional Logic ............................................................................................... 4
2.15 Option 11, Audible Detect Signal ........................................................................................ 5
2.16 Option 12: Detector Disconnect ........................................................................................... 5
2.17 Option 13: True Presence ..................................................................................................... 6
2.18 Option 14: Sensitivity Boost ................................................................................................ 6
Section 3 Specifications ..................................................................................................................... 7
3.1 Physical .................................................................................................................................. 7
3.2 Electrical ................................................................................................................................ 7
3.3 Operational ............................................................................................................................ 7
3.4 Table: Sensitivity, -∆L/L, and Response Time ....................................................................... 8
3.5 Table: Default Settings ........................................................................................................... 8
3.6 Table: Pin Assignments ......................................................................................................... 9
Section 4 User Interface .................................................................................................................. 10
Section 5 Installation and Set-Up ................................................................................................... 11
5.1 Program Mode Display Screens ........................................................................................... 11
5.2 Normal Mode Display Screens ............................................................................................ 15
5.3 Loop Fail Indications ........................................................................................................... 17
5.4 Setting Sensitivity using the Bargraph ................................................................................. 18
5.5 Setting Sensitivity for Motorcycle Detection using the Bargraph ........................................ 19
5.6 Full Restore to Factory Default Settings .............................................................................. 19
5.7 Display Test ......................................................................................................................... 19
Section 6 Block Diagram ................................................................................................................ 20
Section 7 The o ry of Operation ....................................................................................................... 21
Section 8 Maintenance and Troubleshooting ................................................................................ 22
8.1 Troubleshooting Power Problems ........................................................................................ 22
8.2 Troubleshooting Initialization Problems .............................................................................. 22
8.3 Troubleshooting Loop Fail Problems ................................................................................... 23
8.4 Troubleshooting Intermittent Loop Fail Problems ............................................................... 24
8.5 Troubleshooting Intermittent Detector Lock-Ups ................................................................ 24
8.6 Troubleshooting Delay Problems ......................................................................................... 25
8.7 Things to Know About Loops .............................................................................................. 25
Section 1 General Description
This Operation Manual was written for people installing, operat ing, and maintaining Reno A & E Model S-1300
Series inductive loop vehicle detectors. The Model S-1300 is a two channel, shelf mount type, inductive loop
vehicle detector designed to meet or exceed NEMA Standards TS 1-1989.
The Model S-1300 incorporates a microcontroller that monitors and process es signals from two separate
loop / lead-in circuits and two Phase Green Inp uts. The microcontroller uses these inputs to determine
how to c ontro l the detec tor o utp uts. A Liqu id Crysta l Disp lay ( LCD), two light e mitt ing diodes (LEDs),
and four front panel pushbuttons are used to display and program all detector functions. Several
diagnostic modes are available to aid technicians and service personnel in troubleshooting detection
problems.
The use of a LCD is what distinguishes this detector from that of other manufacturers. It allows more informat ion,
never before available, to be displa yed to t he use r during normal operation of the detector. The LCD makes it easy
to view and adjust all programmable detector opt ions and settings. It is no longer necessary to check o r change
detector settings with DIP sw itches. An eight-segment bargraph at the top of the L CD can be used to provide a
graphical representation of the relative change of inductance as seen by the detector at the current sensitivity level.
The bargraph automatically takes into account loop size, loop inductance, nu mber of loops, number of turns, loop
geometry, lead-in lengt h, e tc. The bargraph functions as a sliding scale that relates to the programmed Sensitivity
Level. The first (left-most) bargraph segment represents the minimum inductance change necessary for the
detector to output a call at the currently selected sensitivity leve l. Larger i nducta nce chan ges will i ndicate more
segments. Each additional segment indicates that the next sensitivity level has also been met or exceeded. When
used in t his manne r, the bar graph prov ides an ind ication of whether t he sensiti vity is set too high or too low,
facilitating the ideal setting of the se ns itivity level.
All programmed settings are stored in non-volatile memory and can only be changed by programming new
settings. Loss of power or a de tector reset will not change any of t he p rogrammed settings. If a loop failure
occurs, the LCD will display the type of lo op failure as L lo (for -25% change or shorted loop conditions) or L hi
(for +25% change or open loop c onditions). Each loop failure is counte d and accumulated in the Loop Failure
Memory. The number of loop failures since the last detector reset or power interruption is very useful information
to have available during analysis of intermittent loop operation.
The Model S-1300 Series detector is a scanning detector. The scanning operation sequentially activates t he ON
and OFF cycle of each channel’s oscillator. Since only one channel’s loop(s) is (are) active at a given time,
crosstalk between adjacent loops connected to the same scanning detector is mini mize d. The Model S-1300
Series’ unique scanning process a lso disconnects the capac itors and dampe ns the oscillator during t he OFF cycle.
This eliminates oscillation past the OFF po int (ringing or dec ay) every time the loop circuit is sca nned, which can
result in crosstalk. W hen operating in the Program Mode, t he Model S-1300 Series disp lays t he rea l time loop
frequency reading for each channel. T he eight frequency settings ca n be incremented or decremented to p rovide
precise frequency readings, removing any guesswork when changing frequency settings to eli minate crosstalk.
NOTE: Adjacent loops connected to different c hannels of a non-scanning dete ctor or d ifferent scanning dete ctors
should be set to different frequencies with maximum separation.
The Reno A & E Model S-1300 Series utilizes the first major innovatio n in inductive loop detectors since the
introduction of digital detecto rs. The programming of all of the detector’s para meters with four normally open
pushbutton switches not o nly simplifies setup by removing binary coded DIP switches, but also increases the
reliability of the detector by eliminating the dependence on switch contacts during normal operation. The detailed
descriptions displayed on the LCD eliminate the interpretation of numerous LED flash rates to determine the
detector status. In addition, the Model S-1300 offers t he versatility of softwa re control. Special funct ions are
possible with a simple change of the s ocket-mounted microprocessor. Special functions are de fined as unique
optio ns (e. g. Opt ion 6, Option 12, etc. ). Special opt ion functions are activated through t he use of the LCD menu
option programming.
The Model S-1300 Series is comprised of the following detectors:
S-1300-R For NEMA TS 1-1989 applications calling for a two channel, 120 volt AC,
S-1300-SS For NEMA TS 1-1989 applications calling for a two channel, 120 volt AC,
S-1300-R-12D For NEMA TS 1-1989 applicat ions calling for a two channel, 12 volt DC,
S-1300-SS-12D For NEMA TS 1-1989 applicat ions calling for a two channel, 12 volt DC,
shelf mount detector with relay outputs and an audible detect signal
(buzzer).
shelf mount detector with so lid state outputs and an audible detect signa l
(buzzer).
shelf mount detector with relay outputs and an audible detect signal
(buzzer).
shelf mount detector with so lid state outputs and an audible detect signa l
(buzzer).
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Section 2 General Characteristics
2.1 LOOP FREQUENCY
There are eight (8) selectable loop frequency settings (nor mally in the range of 20 to 100 kilohertz) per c hannel.
The actual loop operating frequency is a function of the loop / lead-in network and the components of the loop
oscillator circuit. The d igital display of the actual loop operating frequency for each setting makes it easy to
quickly identify and eliminate crossta lk in the most difficult to configure intersections. The frequency display is
typica lly very stab le when the loop is vacant and veh icles are not passing nearby the loops. If the reading is
varyin g by more than ±1 in the last digit, this is an indication of possible crossta lk betwee n loops.
2.2 SENSITIVITY
There are nine (9) selectable sensitivity levels per channel, plus Continuous-Call and Cha nne l-O f f. T he s ensitiv i t y
levels are designed so that a one level increase actually doubles the sensitivity and a one level decrease halves the
sensitivity. A unique bargraph d isplayed on t he LCD makes it eas y to quickly set sensitivity at t he ideal leve l for
any loop / lead-in network configuration. (See Section 3.4 for actual detection levels at each sensitivity level.)
C
ONTINUOUS-CALL: Whe n se t t o t he Co nt in uo us -Call state , the c hannel ou tput is co ntinuous ly in t he Call state
regardless of t he presence or absence of vehicles o ver the loop. The loop oscillator is d isabled when in the
Continuous-Call state. T his state is indicated b y CALL flashing on the LCD. This option is selected from the
Sensitivity menu in Program Mode and is useful for checking co ntroller response and other troubleshooting
activities.
C
HANNEL-OFF: When s et to the Channel-O ff state, the channel output is cont inuously in the No Call state
regardless of the presence or absence of vehicles over the loop. The loop oscillator is disabled when in the
Channel-Off State. This sta te is indicated by OFF flashing on t he LCD. This option is selected from the
Sensitivity menu in Program Mode and is useful for checking co ntroller response and other troubleshooting
activities.
2.3 PRESENCE / PULSE
One of two mutually exclusive modes of operation for each channel is available. Presence or Pulse mode is
toggled by momentarily pressing e ither the (UP) or (DOWN) button.
P
RESENCE MODE: Provides a call hold time of at least four min utes (regardless of vehicle size) and typically one
to three hours for an automobile or truck.
P
ULSE MODE: An output Pulse of 125 ±10 milliseconds duration is generated for each vehicle entering the loop
detection zone. Each detected vehicle is instantly tuned out if it remains in the loop detection zone longer than
two seconds. This enables detection of subsequent vehicles entering the loop detection zone. After each vehicle
leaves the loop detection zone, the cha nnel resumes full sensitivity within 0.5 seconds.
2.4 CALL DELAY
Each channel’s Call Delay is ad justab le from 0 t o 255 seconds in one-second steps. Call Delay time starts counting
down when a vehicle enters the loop detection zo ne. The remaining Ca ll Delay time i s continuous ly displayed on
the LCD . W he ne ver a P has e Gr ee n I np ut ( C all D e lay O ve rr id e) si gna l (p i n J o f t he M S co nne ct or of c ha nne l 1 or
2) is active, the Call Delay func tion for the channel is aborted and the Call Delay time is forced to zero.
2.5 CALL EXTENSION
Each channel’s Call Extension is adjustable from 0 to 255 sec onds in one-second steps. Extension time sta rts
counting down when the last vehicle clears the loop detection zone. The remaining Call Extension time is
contin uous ly d isp la yed o n the LCD. Any veh icle ente r ing t he lo op de tec tio n zo ne d uri ng t he Ca ll E xtens io n ti me
period causes the channel to return to the Detect state, and later, when the last vehicle clears the loop detection
zone, the full Call Exte nsion time starts counting down again. (See Option 3, Call Extension Contro l, for an
alternate mode of operation for Call E xtension.)
2.6 MAX PRESENCE TIMER
When activated, each channel’s Max Presence timer is adjustable from 1 to 999 seconds in one-second steps. A
setting of OFF turns the Max Presence timer off. The Max Presence function is used to limit presence time, by
automatically resetting the channel. If this function is enabled (ON), the Max Pre sence timer begins counting
down when a call is initiated and t he remaining ti me is continuously displaye d on the LCD. If t he loop becomes
vacant before the Max Presence timer reaches zero, the call is dropped and no automatic reset occurs. If the EndOf-Green (EO G) func tion is no t enab led (O FF) and th e call is s till pre sent when the Max Presence timer reaches
889-1908-00 Model S-1300 Operations Manual Rev Apr 2020 Page 2 of 25
zero, the cha nnel then is aut omatically reset. If the EOG functi on is e nabled (ON) and the call is still present w hen
the Max Presence timer reaches zero, the channel enters a Wait state. The Wait state continues until either the loop
becomes vacant or the Phase Green Input signal for a channel (pin J of the MS connector) transitions from green to
not green with the call still present. If the loop becomes vacant first, the call is dropped and no automatic reset
occurs. If the Phase Green Input transitions from green to not green while a cha nne l is in a Wait state, the channel
is automatically reset. The signals on pin J of the MS connectors of channels 1 and 2 are also called Call Delay
Overrides. (See Section 3.2, Phase Green Input specification for voltage levels.)
2.7 END-OF-GREEN (EOG)
Each channel’s EOG setting can be toggled O N or OFF b y moment arily pr essing either the (UP) or (DOWN)
button. The EOG function is used to synchronize resetting of a detector with the termination of t he associated
phase green. The assumption is that t his is the sa fest point in t ime to reset the c hannel. T his assumption is based
on the premise that at the termination of t he as s ociated p hase green, traffic should be moving, and therefore, a reset
would not result in the loss of a ca ll when traffic comes to rest over the loop(s). The EOG function is only
available when the Max Presence function is set between 1 and 999 seconds. It is not available when the Max
Presence function is OFF. When the EOG function is enab led (ON), the channel will automatically be reset at the
same time the Phase Green Input signal (pin J of the MS connector) transitions from the ON state to the OFF state,
if the Max Presence Time has counted down to zero and is resting in the wait state. The signa ls on pin J of the MS
connectors of channels 1 and 2 are also called Call Delay Override. (See Section 3.2, Phase Green Input
specifications for voltage levels.)
2.8 OPTION 1: LOOP INDUCTANCE DISPLAY
Each cha n ne l’s Loo p Induc ta nce D isp la y se tt in g ca n be to gg led O N o r O FF b y mome nt ar il y pre ss i ng e it he r the
(UP) or (DO W N ) b u t to n. W hen this option is e na b le d (ON), t he LCD d is p lays the to t al lo o p i nd uc t a nc e (a c t ua l
loop inductance plus actual lead-in inductanc e) in micro henrie s for lo op ind uctance values in the r ange of 2 0 to
2500 microhenries. By recording the inductance of the loop / lead-in circuit when it is first insta lled, the actual
inductance can be compared to the expected ind uctance to help identify defective loop / lead -in circuits. Loop /
lead-in inductance can be easily estimated using the simple formulas included in Section 8.7 of this manual.
NOTE: Enabling this option activates i t for both channe ls. Th is option is automat ica lly disabled 15 m inutes after
activation or on loss of power.
2.9 OPTION 2: LOOP INDUCTANCE -∆L/L DISPLAY
Each cha n ne l’s Loo p I nd uct a nce -∆L/L Display sett ing can be toggled ON or OFF by momentarily press ing either
the (UP) or (DOWN ) button. When this o ption is enab led (ON), the LCD dis plays the per centage of
induct ance change (-∆L/L value) during the Call state. To fac ilitate the viewing of the maximum amount of
change in the -∆L/L value w hile traffic is in motion over the detection zone, the channel holds the peak -∆L/L
value for a period of two seconds. NOTE: Enabling t his option activates it for both channels. This option is
automatically disabled 15 minutes after activation or on loss of power.
2.10 OPTION 3: CA L L EXTENSION CONTROL
Each cha nnel’ s Cal l Exte nsion C ontro l set ting ca n be to ggled O N or OF F by mo mentar ily pre ssin g eithe r the
(UP) or (DO WN ) b ut to n. W he n t h is o pt io n is e nab led (O N) , t he c ha n nel w ill e x tend ca l ls f or t he pr o gra mme d
extens ion t ime only whe n the Phase Green Input signal (pin J of the MS connector) is active. When this option is
OFF, the channel extends ALL calls for the programmed extension time. The signals on pin J of the MS
connectors of channels 1 and 2 are also called Call Delay Overrides. (See Section 3.2, Phase Green Input
specifications for voltage levels.)
2.11 OPTION 4: NOISE FILTER DISABLE
The detector’s Noise Filter Disable setting can be toggled ON or OFF by momentarily pressing either the (UP)
or ( DO WN ) b utt o n. W he n Op t io n 4 is e nab led (ON), internal noise filtering is disabled thus provid ing a faster
response time. When this option is O FF, internal noise filtering is utilized. W hen the detector is used in speed
and/or occupancy applications, the noise filter should be disabled (i.e. Option 4 ON) to provide the most accurate
data possible. It is recommended t hat this option not be activated. The factory default setting o f OFF provides
stable operation in high crosstalk e nvironments. NOTE: Enabling this option activates it for both channels.
Changing the setting of this feature will reset both detector channels.
The Loop Fail Count is not reset when the setting of Option 4 is changed. Also, changing the setting of Option 4
will not cause the prior Loop Fail indication to cease (see Section 5.3, Loop Fail Indications).
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Loop B
Loop A
2.12 OPTION 5: PHASE GREEN LOOP COMPENSATION
Each channel’s Phase Green Loop Co mpensation setting can be toggled ON or OFF by mo mentarily pressing
either the (UP) o r (DOWN) bu t ton. When Op t io n 5 is e na b le d ( O N) , no rmal loop compe nsation is used until
the Phase Green Input signal (pin J of the MS connector) becomes active (low). Once the Phase Gr een Input sign al
is active (high), the channel desensitizes the loop. Maximum desensitization is 0.05% (-∆L/L). This
desensitization tunes out small changes, such as adjacent lane pickup, therefore minimizing the chance of max
timing an empty lane. Note: A small motorcycle may also be tuned out in a short period of time following the star t
of Phase Green. This option is useful in minimizing false detec tion resulting from adjacent lane pickup when a
channel must be run with a high sensitivity setting. When Option 5 is not enabled (OFF), normal loop
compensation is used.
2.13 OPTION 9: THIRD CAR PASSAGE
Each channel’s Third Car Passage setting can be toggled O N or O FF b y momentarily pressing either the (UP) or
(DO WN ) b ut to n. O p tio n 9 is a p a ire d cha nne l opt io n. Th is me ans t hat it ta ke s t w o c ha nne ls to imp le me nt the
feature. Therefore, when this option is toggled ON or OFF in one channel, its paired channe l is also set to the same
state. In the Model S-1300, Channel 1 is paired with Channel 2. NOTE: Option 9 is mut ually exclusive with
Optio n 10. Turning ON one option will automatically turn OFF the other option.
When Op t ion 9 is e nab led (ON ) , t he o utp u t o f the tw o pa ir ed c ha n ne ls a re log ic a lly AND ed t o get he r. Th is mea ns
that while the loops for both of the paired channels are occ upied, a call will be output on both channe ls. While
only o ne c han ne l is oc cupied, or neither channel is occupied, a c all will not be output for either channel. The first
channel with detection will enter a pend ing state w hile wait ing for detect ion on the ot her pa ired cha nnel. While in
the pending state, the LCD will show Pnd on the display.
This feature is intended to be used in Pro tected / Permissive left turn situations. The expected ins tallation is a stop
bar loop for the left turn lane connected to one c hanne l, a queue detect ion loop (with a s mall amount o f delay ti me
programmed) for the left turn lane connected to the other channel, and the output of eithe r channel conne cted to the
Vehicle Call input for the protected movement of the traffic controller.
Basic Installation - Loop A is the Queue Detec tion lo op and
Loop B is the Stop Bar loop.
Car enters Loop A - No ca ll is o utp ut.
Car proceeds to Loop B - No call is output.
Addit io na l c ars ente r t he left tur n lane - When the bac k o f t he
queue reaches Loop A while a car is still over Loop B, a call
will be output.
When T hird Car P assage is turned o n, as the f irst vehi cle enter s the lef t turn la ne it will d rive ove r the queue
detection loop. Since there is no vehic le over the stop bar loop, there is no call output genera ted. The vehicle
advances to the stop bar loop. Still, no output is generated because there is no vehicle over the queue detection
loop. If the vehicle traffic in the left turn lane backs up to the queue detection loop, then the stop bar loop and the
queue detection loop will both be occupied at the same time. This will cause the detector to generate a ca ll to t he
traffic controller to service the protected movement for the left turn. This should help clear the que ue of vehicles
in the left turn lane. The spacing between the stop bar loop and the queue detection loop controls the size of the
queue needed to generate a call to the protected movement of the controller. The delay time on the Queue
Detection loop should be sufficiently long that vehic les driving over this loop to enter the queue do not generate a
call.
2.14 OPTION 10: DIRECTIONAL LOGIC
Each channel’s Directional Logic setting can be toggled ON or OFF by momentarily pressing either t he (UP) or
(DOWN) button. Option 10 is a paired c hannel option. This means that it takes two channe ls to implement t he
feature. Therefore, when this option is toggled ON or OFF in one channel, its paired channe l is a lso set to the sa me
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