gefran TPD32-EV-...-4B - Ramp

—————— TPD32-EV ——————
160
6.6 RAMP
Quick stop
F
Ramp Reference
F
Linear
S-shape
T
Freeze ramp
COMMAND
From
Ramp in=0
To Speed Reference
generation
Multi Ramp FunctionSpeed
t
S-shape
T
0
t
Linear
Acc. delta speed
100 rpm
Dec. delta speed
100 rpm
Acc. delta time
1s
Dec delta time
1s
QStp delta speed
1000 rpm
Enab multi rmp
QStp delta time
1s
Ramp +/- delay
100 ms
Ramp ref (d)
Ramp shape
S shape t const
300 ms
S acc t const
300 ms
S dec t const
300 ms
Ramp +
Ramp -
Freeze ramp
Ramp shape
Figure 6.6.1 : Ramp circuit
Theramp(referencevalueintegrator)determinestheaccelerationanddecelerationtimesofthedrive.These
timescanbesetindependentlyofeachother.
Anadditionalrampisprovidedforaquickstop.Thisrampcanonlybeactivatedviatheserialinterfaceora
eldbus.
TherampcaneitherbelinearorS-shaped.
Thereferencevaluescanbedenedindifferentways:
-withtheRamp ref 1and/orRamp ref 2 referencevalues
-withthemulti-speedfunction
-withthemotorpotentiometerfunction
-withtheJogfunction
TheRampgeneratorcanbeusedinastandaloneconguration.WhentheRampgeneratorisdisabled(Enable
ramp=disabled),theEnable drive,Start/Stop andFast stop commandshavenomoreinuenceonRamp
generator.Insuchaconditionitisfreetorunandcanbeusedseparately.