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Parameters 343
Defines how process feedback is calculated from the two
feedback sources selected by parameters
.
In1
Source 1.
0
In1+In2
Sum of sources 1 and 2.
1
In1-In2
Source 2 subtracted from source 1.
2
In1*In2
Source 1 multiplied by source 2.
3
In1/In2
Source 1 divided by source 2.
4
MIN(In1,In2)
Smaller of the two sources.
5
MAX(In1,In2)
Greater of the two sources.
6
AVE(In1,In2)
Average of the two sources.
7
sqrt(In1)
Square root of source 1.
8
sqrt(In1-In2)
Square root of (source 1 - source 2).
9
sqrt(In1+In2)
Square root of (source 1 + source 2).
10
sqrt(In1)+sqrt(In2)
Square root of source 1 + square root of source 2.
11
Defines the filter time constant for process feedback.
0.000 s
0.000 … 30.000 s
Feedback filter time.
1 = 1 s
Defines the unit for parameters
…
rpm
rpm.
7
%
%.
4
Hz
Hz.
3
PID user unit 1
User-definable unit 1. The name of the unit can be edited on
the control panel by choosing Menu – Settings – Edit texts.
250
Defines, together with parameter
,
a general scaling factor for the process PID control chain.
The scaling can be utilized when, for example, the process
setpoint is input in Hz, and the output of the PID controller is
used as an rpm value in speed control. In this case, this
parameter might be set to 50, and parameter
to the
nominal motor speed at 50 Hz.
In effect, the output of the PID controller = [
] when
deviation (setpoint - feedback) = [
] and [
] = 1.
Note:
The scaling is based on the ratio between
and
. For example, the values 50 and 1500 would produce
the same scaling as 1 and 30.
100.00
-32768.00 …
32767.00
Process setpoint base.
1 = 1
See parameter
.
1500.00;
1800.00
(
b0)
-32768.00 …
32767.00
Process PID controller output base.
1 = 1
Selects the first source of process PID setpoint. This setpoint
is available in parameter
as
setpoint 1. See the control chain diagram on page
Not selected
None.
0
No.
Name/Value
Description
Def
/
FbEq16
Содержание ACS880-01 Series
Страница 1: ...ABB industrial drives Firmware manual ACS880 ESP control program option N5600 ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 20: ...20 Introduction to the manual ...
Страница 22: ...22 Using the control panel ...
Страница 28: ...28 Control locations and operating modes ...
Страница 145: ...Application macros 145 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 146: ...146 Application macros ...
Страница 502: ...502 Parameters ...
Страница 606: ...606 Fault tracing ...
Страница 662: ...662 Control chain diagrams ...
Страница 664: ...Contact us www abb com drives www abb com drivespartners 3AXD50000041193 Rev A EN EFFECTIVE 2017 06 30 ...