Def / Type
FbEq 16b / 32b
Description
Name / Range /
Selection
No.
1 / int32
Parameters
and
define a gear function
between the motor speed feedback and motor control.
The gear is used to correct a difference between the
motor and encoder speeds for example if the encoder
is not mounted directly on the motor shaft.
90.43
90.44
=
Motor speed
Encoder speed
See also section
Load and motor feedback (page 93)
Note: This parameter cannot be changed while the
drive is running.
Motor gear
numerator
90.43
- / -
Motor gear numerator.
-2147483648...2147483647
1 / int32
See parameter
.
Note: This parameter cannot be changed while the
drive is running.
Motor gear
denominator
90.44
- / -
Motor gear denominator.
-2147483648...2147483647
Fault / uint16
Selects how the drive reacts to loss of measured motor
feedback.
Motor feedback
fault
90.45
0
Drive trips on a
or
fault.
Fault
1
Drive generates an
,
or
warning
and continues operation using estimated feedbacks.
Note: Before using this setting, test the stability of the
speed control loop with estimated feedback by running
the drive on estimated feedback (see
).
Warning
No / uint16
Forces the DTC motor model to use estimated motor
speed as feedback. This parameter can be activated
when the encoder data is obviously unreliable because
of slippage, for example.
Note: This parameter only affects the selection of
feedback for the motor model, not for the speed
controller.
Force open loop
90.46
0
The motor model uses the feedback selected by
No
1
The motor model uses the calculated speed estimate
(regardless of the setting of
, which in case only selects the source of
feedback for the speed controller).
Yes
Rollover / uint16
Selects the axis type for motor position measurement.
Motor position axis
mode
90.48
0
Linear.
Linear
1
The value is between 0 and 1 revolutions, and rolls over
at 360 degrees.
Rollover
570 Parameters
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