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104
ADV200
WA • Functions description and parameters list
22.10 - FUNCTIONS/VDC CONTROL
This function is used to control the voltage and power recovered in the DC link during regeneration (e.g. braking
ramp). When this function is enabled, if the power regenerated by the load during braking increases the DC link volt-
age, the drive prevents triggering of the
Overvoltage
alarm by limiting the regenerated current.
The
Vdc control function
is enabled automatically (if parameter
3450 Vdc control function
is set to 1) when the DC
link voltage exceeds a preset threshold, depending on the mains voltage and lower than the
Overvoltage
threshold.
This threshold is also used for the regulator that controls the regenerated current limit.
If the
Vdc control function
is enabled, the motor speed need not follow the set ramp.
If the regulator is unable to limit the regenerated power during the deceleration ramp and prevent the
Overvoltage
alarm from being generated, the ramp can be temporarily blocked by setting parameter
754 Ramp freeze src
using
the information in
Vdc ctrl ramp freeze
.
The function remains enabled until the power regenerated by the load is cancelled and the DC link voltage falls below
the disable threshold (below the enable threshold).
Menu
PAR
Description
UM
Type
FB BIT
Def
Min
Max
Acc
Mod
22.10.1 3450 Vdc control function
ENUM
Disable
0
1
ERWZ VS
This parameter is used to enable the
Vdc control function
.
0
Disable
1
Enable
If set to
0
the function is disabled: in case of power recovery the Sovratensione alarm is generated.
If set to
1
the function is enabled: in case of power recovery the function is enabled and attempts to control
the current regenerated by the motor and prevent the
Overvoltage
alarm from being generated.
Menu
PAR
Description
UM
Type
FB BIT
Def
Min
Max
Acc
Mod
22.10.21 3470 Vdc control P gain
A/V FLOAT
CALCF
0.0
100.000
ERWS VS
Setting of the proportional gain used during the
Vdc control function
. The set value must be increased
if the
Overvoltage
alarm is generated. The Sovratensione alarm can also be prevented by lengthening the
deceleration ramp. The value of this parameter must also be increased if the DC link voltage is set to a value
other than the setpoint
Menu
PAR
Description
UM
Type
FB BIT
Def
Min
Max
Acc
Mod
22.10.3 3472 Vdc control I time
ms
FLOAT
CALCF
1.0
1000.0
ERWS VS
Setting of the integral time used during the
Vdc control function
. The set value must be reduced if the DC
link voltage is set to a value other than the setpoint.
Summary of Contents for ADV200 WA
Page 84: ...84 ADV200 WA Functions description and parameters list 22 3 FUNCTIONS DC BRAKING ...
Page 274: ...274 ADV200 WA Block Diagrams G Block Diagrams System Diagrams Index Drive overview ...
Page 275: ...ADV200 WA Block Diagrams 275 References ...
Page 276: ...276 ADV200 WA Block Diagrams Ramps Multireference ...
Page 277: ...ADV200 WA Block Diagrams 277 Motorpotentiometer Jog function ...
Page 278: ...278 ADV200 WA Block Diagrams Monitor function ...
Page 279: ...ADV200 WA Block Diagrams 279 ...
Page 280: ...280 ADV200 WA Block Diagrams Commands ...
Page 281: ...ADV200 WA Block Diagrams 281 ...
Page 282: ...282 ADV200 WA Block Diagrams Digital inputs ...
Page 283: ...ADV200 WA Block Diagrams 283 Digital outputs ...
Page 284: ...284 ADV200 WA Block Diagrams Analog inputs ...
Page 285: ...ADV200 WA Block Diagrams 285 ...
Page 286: ...286 ADV200 WA Block Diagrams Analog outputs ...
Page 287: ...ADV200 WA Block Diagrams 287 Speed reg gains ...
Page 288: ...288 ADV200 WA Block Diagrams VF parameters ...
Page 289: ...ADV200 WA Block Diagrams 289 Functions ...
Page 290: ...290 ADV200 WA Block Diagrams ...
Page 291: ...ADV200 WA Block Diagrams 291 ...
Page 292: ...292 ADV200 WA Block Diagrams ...
Page 293: ...ADV200 WA Block Diagrams 293 Process ...
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