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Parameters 393
Scales the values of parameters
when accessed from an
external source (eg. fieldbus). The setting corresponds to the
number of decimal places.
For example, with the setting of 3, an integer value of 66770
written into
is divided by 1000, so
the final value applied will be 66.770. Likewise, the value of
is multiplied by 1000 when read.
3
0…9
Number of position counter decimal places.
1 = 1
Selects the motor speed feedback value used during motor
control.
Note:
With a permanent magnet motor, make sure an
autophasing routine (see page
) is performed using the
selected encoder. If necessary, set parameter
to request a fresh autophasing
routine.
Estimate
A calculated speed estimate generated from the DTC core is
used.
0
Encoder 1
Actual speed measured by encoder 1. The encoder is set up
by the parameters in group
1
Encoder 2
Actual speed measured by encoder 2. The encoder is set up
by the parameters in group
2
Defines a filter time for motor speed feedback used for speed
control (
3 ms
0 … 10000 ms
Motor speed filter time.
1 = 1 ms
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.
See also section
(page
Note:
This parameter cannot be changed while the drive is
running.
1
-2147483648 …
2147483647
Motor gear numerator.
-
See parameter
.
Note:
This parameter cannot be changed while the drive is
running.
1
-2147483648 …
2147483647
Motor gear denominator.
-
Selects how the drive reacts to loss of measured motor
feedback.
Fault
Drive trips on a
fault.
0
No.
Name/Value
Description
Def
/
FbEq16
Motor speed
Encoder speed
=
Содержание ACS880-x04
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Страница 4: ......
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 111: ...Application macros 111 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 112: ...112 Application macros ...
Страница 496: ...496 Additional parameter data ...
Страница 544: ...544 Fault tracing ...
Страница 602: ...602 Control chain diagrams ...