SECTION SIX – COMMANDS
DS2000 USER’S MANUAL (rev.C)
6.8
ANTIFREEWHEELING
Description: enable ANTIFREEWHEELING function
in following conditions:
• motor overtemperature
• drive overtemperature
• power lost
The drive brakes until null velocity is reached. If
recovered power is not enough the drive will shut
down without reaching null velocity. DRIVE ENABLE
signal has to be applied to activate this function
Allowed values:
• 0 (for disabled)
• 1 (for enabled)
Note: ACCELERATION and DECELERATION ramps
are active for a proper operation and emergency stop
I2T IGBT PROTECT
Description: enable I2T protection on IGBT if output
frequency is lower than 5kHz
Allowed values:
• 0 (for disabled)
• 1 (for enabled)
Note: enabling I2T IGBT PROTECT, NOTCH FILTER
will be automatically disabled
Note: when this protection is active, the letters I2T
will appear on the main window (Moog DS2000)
menu
TIME I2T IGBT=
Description: set a time for I2T trigger
Allowed values:
from 100 ms to 1000 ms in 10 ms unit steps
Note: default value is 500 ms for all DS2000 drives
FAULT I2T IGBT
Description: enable the fault reaction on I2T IGBT
drive condition
Allowed values:
• 0 (for disabled)
• 1 (for enabled)
Note: select the “reaction” following the application
needs
• if disabled, reduce the max output current to the
rated drive current
• if enabled, fault condition (alarm and torque
disable)
NOTCH FILTER
Description: enable notch filter function to remove
precise critical frequency
Allowed values:
• 0 (for disabled)
• 1 (for enabled)
Note: available only if I2T IGBT PROTECT is
disabled
NOTCH FREQUENCY=
Description: it allows to insert in the speed
adjustment loop a Notch filter which can be
programmed in frequency
Allowed values:
from 50 Hz to 1500 Hz in 1 unit steps
Note: set directly in Hz the filter attenuation
frequency
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