GEH-6385 Reference and Troubleshooting, 2300 V Dr ives Chapter 4 Wizards
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Spd reg pos err lim specifies the allowable differen ce between the speed command
and the speed feedback when the motor is running too slow. If th e feedback is less
than the command and the di fference between the two is grea ter than Spd reg pos err
lim, then the drive switches from torque regulation to speed regulation.
Spd reg neg err lim specifies the allowable differen ce between the speed command
and the speed feedback when the motor is running too slow. If th e feedback is
greater than the comman d and the difference between the two is greater than Spd reg
neg err lim, then the drive switches from tor que regulation to speed regulation.
Enter values for the two par ameters that specify the maxim um allowable speed error.
Related functions
• Speed/Torque Regulator
Drive Commissionin g: Torque with Speed Override
Stopping Behavior
When the torque regulat or with speed override mode is select ed, the drive sets the
output of the regulator to a selected torque reference signa l, except when the
difference between th e speed command and the speed feedback i s too large. When
the error between those tw o speed signals is too large, the dri ve begins to control the
motor speed so that it follows the speed command.
When the drive stops, it can st op either as a speed regulator or as a tor que regulator.
Select Torque W/Spd Overide to stop the drive in torque regulator mode. Select
Speed Regulator to stop the drive in speed regulator mode.
Related functions
• Speed/Torque Regulator
Drive Commissionin g: Torque and Current Limits
Selecting Torque limit res to use Identical Limits will use a single per-unit value to
set the motoring and generating tor que limits based on 100% Motor torque and the
current limit based on 100% Motor current.
Selecting Torque limit res for Separate Limits allows the process owner to
selectively limit the drive statically or dynamically.
Drive Commissionin g: Torque and Current LimitsUniform
Torque overload is the overload limit value that will be used for all torque and
current limits based on motor per-unit. A rule populates all torque and current limits
based upon this entry and motor nameplate date.