Parameters 291
90.45 Motor feedback fault Selects how the drive reacts to loss of measured motor
feedback.
Fault
Fault Drive trips on a 7301 Motor speed feedback.0
Warning Drive generates a A7B0 Motor speed feedback 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 90.41 Motor feedback
selection).
1
90.46 Force open loop Defines the speed feedback used by the vector motor
model.
No
No The motor model uses the feedback selected by 90.41
Motor feedback selection.
0
Yes The motor model uses the calculated speed estimate
(regardless of the setting of 90.41 Motor feedback
selection, which in this case only selects the source of the
feedback for the speed controller).
1
90.47 Enable motor encoder
drift detection
Enables/disables the motor encoder drift detection. When
drift is detected, fault 7301 Motor speed feedback and
AUX code 4 Drift detected are set.
No
No Drift detection is disabled. 0
Yes Drift detection is enabled. 1
91
91 Encoder adapter
settings
Configuration of encoder interface modules.
91.02 Adapter 1 status Displays the type of the interface module.
This parameter is read-only.
-
No option No module detected. 0
No communication A module has been detected but cannot be
communicated with.
1
Unknown The module type is unknown. 2
91.10 Encoder parameter
refresh
Validates any changed encoder interface module
parameters. This is needed for any parameter changes in
groups 90…93 to take effect.
After refreshing, the value reverts automatically to Done.
Note: The parameter cannot be changed while the drive is
running.
Done
Done Refreshing done. 0
Refresh Refreshing. 1
92
92 Encoder 1
configuration
Settings for encoder 1.
Notes:
• The contents of the parameter group vary according to
the selected encoder type.
• It is recommended that encoder connection 1 (this
group) is used whenever possible
92.10 Pulses/revolution (Visible when a TTL, TTL + HTL encoder is selected)
Defines the pulse number per revolution.
2048
0...65535 Number of pulses. -
No. Name/Value Description Default
FbEq 16
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