168 Parameters
19.14 Speed superv est Defines an activation level for encoder supervision. See also
parameters 19.15 Speed superv enc and 19.16 Speed fb filt t.
The drive reacts according to 19.13 Speed fbk fault when:
• the estimated motor speed (01.14 Motor speed est) is
greater than 19.14 AND
• the filtered encoder speed* is lower than 19.15.
Speed feedback supervision can be disabled by setting this
parameter to the maximum speed.
0…30000 rpm Activation level for encoder supervision. 1 = 1 rpm
19.15 Speed superv enc Defines an activation level for the encoder speed used in
encoder supervision. See parameter 19.14 Speed superv est.
0…30000 rpm Activation level for the encoder speed. 1 = 1 rpm
19.16 Speed fb filt t Defines a time constant for the encoder speed filtration used
in encoder supervision. See parameter 19.14 Speed superv
est.
0…10000 ms Time constant for the encoder speed filtration. 1 = 1 ms
20
20 Limits
Drive operation limits. See also section Speed controller
tuning on page 61.
20.01 Maximum speed Defines the allowed maximum speed. For safety reasons,
after ID run this parameter is set to a 1.2 times bigger value
than the nominal motor speed (parameter 99.09 Mot nom
speed).
0 … 30000 rpm Maximum speed. 1 = 1 rpm
20.02 Minimum speed Defines the allowed minimum speed. For safety reasons,
after ID run this parameter is set to a 1.2 times bigger value
than the nominal motor speed (parameter 99.09 Mot nom
speed).
-30000 … 0 rpm Minimum speed. 1 = 1 rpm
No. Name/Value Description FbEq
01.14**
Speed
19.14
99.09
19.15
Filtered encoder
speed*, **
*Filtered outcome of encoder 1/2 speed. Parameter 19.16
Speed fb filt t defines the filtration co-efficient for this
speed.
**In normal operation, the filtered encoder speed is equal
to signal 01.14 Motor speed est.
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