GE 2300 V Manuel D’Utilisation
GEH-6385 Reference and Troubleshooting, 2300 V Drives
Chapter 4 Wizards
••••
4-17
Drive Commissioning: Stopping Configuration
When the drive is running normally and the run request becomes false, the drive will
be brought to a stop. A normal stop can be generated from one of several different
inputs, but has 1 of 3 stopping behaviors as configured by the parameter Normal stop
mode.
be brought to a stop. A normal stop can be generated from one of several different
inputs, but has 1 of 3 stopping behaviors as configured by the parameter Normal stop
mode.
Value of Normal stop
mode
mode
Behavior
Ramp stop
The drive follows a linear speed deceleration
ramp down to zero speed as configured by the
Speed Reference Ramp function. Once the drive
detects that Speed reg fbk has reached the Zero
speed level, the sequencer disables the
regulators and stops the drive.
ramp down to zero speed as configured by the
Speed Reference Ramp function. Once the drive
detects that Speed reg fbk has reached the Zero
speed level, the sequencer disables the
regulators and stops the drive.
Quick stop
The speed reference is stepped to zero so that
the speed is brought is brought to zero as
quickly as possible (the drive is in current limit).
Once the drive detects that Speed reg fbk has
reached the Zero speed level, the sequencer
the speed is brought is brought to zero as
quickly as possible (the drive is in current limit).
Once the drive detects that Speed reg fbk has
reached the Zero speed level, the sequencer
disables the regulators and stops the drive.
Coast stop
The regulators are immediately disabled and
power is removed from the motor so that it will
coast to a stop. The sequencer will prevent the
drive from being re-started until Speed reg fbk
has reached the Zero speed level, unless Flying
restart is enabled.
power is removed from the motor so that it will
coast to a stop. The sequencer will prevent the
drive from being re-started until Speed reg fbk
has reached the Zero speed level, unless Flying
restart is enabled.
Note
It is possible for the motor to continue to
be turned by other members of the process
.
Note If Normal stop mode is set to Quick stop or Coast stop, it is recommended that
the parameter Bypass Q/C stop be set to Yes. Otherwise, if the application uses Full
flux request or has a post flux delay set in the parameter, Flux off delay time, the
sequencer will not properly maintain flux on the drive.
the parameter Bypass Q/C stop be set to Yes. Otherwise, if the application uses Full
flux request or has a post flux delay set in the parameter, Flux off delay time, the
sequencer will not properly maintain flux on the drive.
Drive Commissioning: Flying Restart
Flying Restart is a feature that allows the drive to acquire control of a motor that is
already turning. Possible selections are as follows:
already turning. Possible selections are as follows:
•
Enable fly restart: Allows the drive to restart while the motor speed is above the
Zero speed level.
•
Disable fly restart: The motor speed must be below the Zero speed level before
the drive can be restarted, otherwise a trip fault, Flying restrt disabl, will be
generated.
generated.
Locked shaft restart: The application must assure that the shaft is locked (by a brake
or other means) when the drive is started. This mode may decrease the time that it
takes to pre-flux the drive.
or other means) when the drive is started. This mode may decrease the time that it
takes to pre-flux the drive.
Note In this mode, failure to insure that the shaft is locked may cause the drive to
misoperate.
misoperate.