V2 HYPERFOR 4000-I - Page 50

ENGLISH
- 48 -
12 - DETECTION OF OBSTACLES
(AMPEROMETRIC SENSOR / SAFETY
RIBBONS)
Thepresenceofanobstaclethatpreventsthemovementofthe
gatecanbedetectedinseveralways:
1. Amperometricsensor
2. Safetyribbons
m Following detection of an obstacle during closure,
the gate reopens and the behaviour of the power centre
depends on various parameters, with the following priority:
1. Iftheclockmodeisactive(
MODE
=
OROL
),countingofthe
pausetimeforautomaticclosureisactivated.
2. Ifthegateisclosedwithoutwithdrawing,orifclosureafterthe
obstacleismanual(
CH.OS
=
MAN
),countingofthepause
timeforautomaticclosureisNOTactivatedandthegatewill
startmovingagainafterthenextstart-upcommandisgiven
3. Ifclosureaftertheobstacleisautomatic(
CH.OS
=
AUTO
),
thecentrewillbehaveaccordingtothesettingsofthe
CH.AU
parameter
12.1 - AMPEROMETRIC SENSOR
Anunexpectedincreaseintheconsumptionofcurrentbythe
motorismeantastheresultofthepresenceofanobstacle.
Thisfeatureisautomaticandrequiresnosettings.
12.2 - SAFETY RIBBONS
Theunitdetectsthepresenceofanobstaclewhenasafetyribbon
ispressed.
Theunithastwoinputsfortheribbons,whichcanbe
independentlyenabledandassociatedwithdifferenttypesof
function.
Connecttheactiveribbonsduringopeningbetweentheterminals
S7andS9.
Enabletheoperationoftheribbonsthroughtheparameter
COS1
:
• Ifyouset
AP
theoperationoftheribbonisdetectedonly
duringopeningandthegatereversesthemovementfor2.5
seconds
• Ifyouset
APCH
theoperationofribbonisdetectedduring
theopeningandclosing:whenopeningthegatereversesthe
movementfor2.5seconds,whilewhenclosingthegateis
stopped
ConnecttheactiveribbonswhenclosingbetweenterminalsS8
andS9.
EnabletheoperationoftheribbonsthroughtheparameterCOS2:
• Ifyouset
CH
theoperationoftheribbonisdetectedonly
duringclosingandthegatereversesthemovementfor2.5
seconds
• Ifyouset
APCH
theoperationoftheribbonisdetected
duringclosingandopening:whenclosingthegatereversesthe
movementfor2.5seconds,whilewhenopeningthegateis
stopped
m WARNING:
• IfyoudonotconnectanyribbontotheterminalS7,the
parameter
COS1
mustbesetto
NO
.
• IfyoudonotconnectanyribbontotheterminalS8,the
parameter
COS2
mustbesetto
NO
.
S1 S2 S3 S4 S5 S6 S7 S8 S9
COS1 COS2
COS1
parametera DEFAULT =
NO
(nofunction)
COS2
parametera DEFAULT =
NO
(nofunction)
Theunitcanoperatewithdifferenttypesofribbons;depending
onthetypeofribbonuseditisrequiredtocorrectlysetthe
parameter
CO.TE
NOTE:Youcannotusedifferenttypesofribbonsontwo
COS1
and
COS2
inputs.
a. Mechanical ribbons with normally closed contact
 Settheparameter
CO.TE
withthevalue
NO
:nottestisrun
beforethemovements.
b. Optical ribbons
 Settheparameter
CO.TE
withthevalue
FOTO
:beforeany
movementafunctionaltestsimilartothatofphotocellsis
carriedout.Ifyoudonotwantthetesttoberun,set
NO
.
 Connectthepowersupplyoftheopticalribbonsfollowingthe
instructionsdescribedinchapter11.1
c. Ribbon with resistive rubber
 Settheparameter
CO.TE
withthevalue
RESI
:theunitis
expectedtomeasureanimpedanceequalto8.2kohms,and
analarmistriggeredifalowerimpedance(pressedribbon)ora
higherimpedance(interruptedwire)aredetected,thereforeit
isnotnecessarytorunthetestbeforethemovements.
m WARNING: If you connect multiple ribbons to the
same terminal, the connection must be made in series,
except in the case of resistive ribbons which which must be
connected in parallel.