gefran ADV200 User Manual

ADV200 • Functions description and parameters list 117
Note: During DC braking injection, ramp reference is set to zero
When DC injection is required with start command, is exchecuted when speed reference threshold = zero has been reached
Mode 1 Example:
With the motor running at any speed, when the stop command is enabled the ramp output decreases according
to the selected ramp time. When the speed reference threshold = zero is reached PAR 934 Riferimento = 0
the direct current injection phase is enabled and direct current injection starts after a delay set in PAR 3154 DC
brake delay. PAR 3156 DC brake duration is used to congure the duration of the injection phase and PAR
3158 DC brake current is used to congure the intensity of the injection phase current.
Mode 2 Example:
Motor running driven by load. When the drive is enabled and the DC braking cmd is sent the direct current
injection phase is activated. When the command is enabled and after the delay congured in PAR 3154 DC
brake delay direct current injection starts. PAR 3156 DC brake duration is used to congure the duration of
the injection phase and PAR 3158 DC brake current is used to congure the intensity of the injection phase
current.
If the command is an impulse shorter than the time set with PAR 3156 Durata frenatura DC, the direct current
injection phase continues at least for the time set in parameter 3156 DC brake duration.
If the command is an impulse longer than the time set with 3156 DC brake duration, the direct current injection
phase continues for as long as the command is present.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.4.3 3154 DC brake delay s FLOAT 0.5 0.00 30.0 ERW FVS
This parameter is used to congure the delay in seconds between the moment DC braking is requested and
the moment direct current injection starts. This delay enables the motor to demagnetise, and thus avoid an
overcurrent due to the electromotive force of the motor (e.f.m.).
The value of this parameter, added to parameter 3156 DC brake duration, must be lower than the value of
parameter 1006 Speed 0 disable dly, otherwise direct current injection will stop when the drive is disabled.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.4.4 3156 DC brake duration s FLOAT 1.0 0.01 30.0 ERW FVS
This parameter is used to congure the duration of direct current injection in the stator windings.
The value of this parameter, added to parameter 3154 DC brake delay, must be lower than the value of pa-
rameter 1006 Speed 0 disable dly, otherwise direct current injection will stop when the drive is disabled.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.4.5 3158 DC brake current perc FLOAT 50.0 0.0 150.0 ERW FVS
This parameter is used to congure the value of the injected direct current.
It is expressed as a percentage of the drive continuous current (PAR 488 Drive cont current).
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.4.6 3160 DC brake state ENUM 16 Non active 0 1 ER FVS
The status of direct current braking is displayed.
0 Non active
1 Active
Note ! During the direct current injection phase the Enable command should not be enabled. If the Enable command is sent to the drive,
the ramp output starts following the set reference; direct current output is produced in any case. The moment the DC braking
cmd is removed there is immediately a speed step without performing a change in the ramp.
During the direct current injection phase, for the Jog command follow the instructions provided for the Enable command.

gefran ADV200 Specifications

General

Brand	gefran
Model	ADV200
Category	Inverter
Language	English