V2 HYPERFOR 4000-I - Page 46

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8 - POWER SUPPLY
Thecontrolunitmustbefedbya230V-50Hzelectricline,
protectedbyadifferentialmagnetothermalswitchcomplyingwith
thelawprovisionsinforce.
ConnectpowersupplycablestoterminalsLandNofthecontrol
unit.
Connectthegroundingsystemtooneofthetwoground
terminalsG1andG2.
9 - OPERATION OF THE MOTOR
Theoperatingspeedofthemotorcanbesetwithdifferentvalues,
dependingonthevariousstagesoftheopeningcycle.
Eachopeningcycleofthegateconsistsof5stages:
1. Acceleration ramp
Thespeedofthegategraduallyincreasesfromtheminimum
speed(5Hz)uptotheoperatingone(valuesetintheparameter
VEL
).
Thetimerequiredtoreachthenormaloperatingspeedis
determinedbythelengthoftheaccelerationramp(
ACCEL
parameter).
Thesettingofthevalueto
0
willresultinashortrampand
thentheaccelerationwillbemaximum,thesettingofthevalue
to6willresultinalongrampandthentheaccelerationwillbe
minimal.
Duringthisphase,thepowercanbeincreasedupto30%for
moreaccelerationthroughthe
SPUN
parameter
2. Regular operating speed
Attheendoftheaccelerationramp,thegatemovesatthespeed
setintheparameter
VEL
uptothebeginningoftheslowdown
phase.
Inthisphase,themotorisdrivenat100%ofitspower.
Thepowersuppliedtothemotorcanbedecreasedbythe
parameter
POT
.
3. Slowdown
• Duringtheopeningphase,theslowdownstartswhenthe
gatereachesthenalpartoftheopening:thisnalpartis
determinedbyapercentageofthetotalopeningandisset
usingtheparameter
RAL.A
• Duringtheclosingphase,theslowdownstartswhenthe
gatereachesthenalpartoftheclosing:thisnalpartis
determinedbyapercentageofthetotalclosingandissetusing
theparameter
RAL.C
Whentheslowdownstartingpointisreached,thecontrolunit
graduallydecreasesthemotorspeeduptothevaluesetinthe
parameter
VEL.R
4. Slowing ramp
Oncethelimitswitchisreached,thespeedofthegateisgradually
broughttozero.Thedurationoftheslowingrampcanbesetwith
theparameter
DECEL
5. Braking
Whenthemotorspeedreacheszero,theswitchsendsabrake
commandonthemotorphasestoensurethatthemotoractually
stops.
Theintensityofthebrakingcanbesetusingtheparameter
FRENO
A
A
ACCEL
1
VEL
2
VEL.R
34
FREN
5
ACCEL
1
VEL
2
VEL.R
3
DECEL
4
FREN
5
DECEL