gefran ADV200 Functions Description And Parameters List page 110

The drive is capable of managing a direct current injection phase. During this phase a braking torque is generated that
can be used to stop the motor or block the rotor.
The following characteristics can be configured:
- signal used to activate the direct current injection phase
- direct current injection phase activation mode
- delay between activation of request for DC braking and start of direct current injection
- duration of direct current injection phase
- intensity of injected direct current
This function is useful for:
- slowing the motor running at any speed to zero speed
- slowing a motor driven by the load before applying the start command
- keeping the rotor blocked at the end of a deceleration ramp following a stop command.
This function cannot be used for intermediate braking as the motor speed must be brought to zero.
During the direct current injection phase the kinetic energy of the motor is dissipated as heat in the motor.
The following parameters allow complete control of the function.
Menu PAR Description
22.4.1 3150 DC braking cmd src
This parameter is used to select the origin (source) of the DC braking cmd signal. The signal to be associated
with this function can be selected from the "L_DIGSEL2" selection list.
If the command is activated (=1) DC braking is enabled.
In the default condition the origin of the DC braking cmd signal is 6000 (disabled).
Note!
During the injection phase in DC on control, the ramp reference is set to zero to prevent any excessively rapid restarts at the end of
the phase.
Menu PAR Description
22.4.2 3152 DC brake mode
Setting of the direct current braking mode.
0 Off
1 Stop
2 Cmd
3 Cmd&Stop
4 Start
5 Start&Stop
6 Cmd&Start
7 Cmd&Start&Stop
If set to 0 the direct current injection phase is never executed.
If set to 1 the direct current injection phase is executed when the stop command is sent and the speed refer-
ence threshold = zero has been reached.
In "Cmd" mode 2 the direct current injection phase is executed when the DC braking cmd configured using
parameter PAR 3150 DC braking cmd src is sent.
In "Cmd&Stop" 3 modes the direct current injection phase is executed when one of the two conditions de-
scribed in the "Stop" or "Cmd" modes is present.
In "Start" mode 4 the direct current injection phase is executed when the start command is sent
In "Start&Stop" mode 5 the direct current injection phase is executed when the start command is sent and
when the stop command is sent and the speed reference threshold = zero has been reached.
In "Cmd&Start" mode 6 the direct current injection phase is executed when one of the two conditions de-
scribed in the "Cmd" or "Start" modes is present.
In "Cmd&Start&Stop" mode 7 the direct current injection phase is executed when one of the three conditions
described in the "Cmd" or "Start" or "Stop"modes is present.
110
UM Type FB BIT
LINK 16
UM Type FB BIT
ENUM
Def Min
6000 0
Def Min
Off 0
ADV200 • Functions description and parameters list
Max Acc Mod
16384 ERW FVS
Max Acc Mod
1 ERW FVS