ABB ACS560 - Page 242

242 Parameters
Frequency input 11.38 Freq in 1 actual value (when DI5 or DI6 is used as a
frequency input).
17
Control panel (ref
saved)
Panel reference (03.01 Panel reference, see page 168)
saved by the control system for the location where the control
returns is used as the reference.
18
Control panel (ref
copied)
Panel reference (03.01 Panel reference, see page 168) for
the previous control location is used as the reference when
the control location changes if the references for the two
locations are of the same type (eg
frequency/speed/torque/PID); otherwise, the actual signal is
used as the new reference.
19
Other Source selection (see Terms and abbreviations on page 162). -
28.12 Ext1 frequency ref2 Selects Ext1 frequency reference source 2.
For the selections, and a diagram of reference source
selection, see parameter 28.11 Ext1 frequency ref1.
Zero
28.13 Ext1 frequency
function
Selects a mathematical function between the reference
sources selected by parameters 28.11 Ext1 frequency ref1
and 28.12 Ext1 frequency ref2. See diagram at 28.11 Ext1
frequency ref1.
Ref1
Ref1 Signal selected by 28.11 Ext1 frequency ref1 is used as
frequency reference 1 as such (no function applied).
0
Add (ref1 + ref2) The sum of the reference sources is used as frequency
reference 1.
1
Sub (ref1 - ref2) The subtraction ([28.11 Ext1 frequency ref1] - [28.12 Ext1
frequency ref2]) of the reference sources is used as
frequency reference 1.
2
Mul (ref1 × ref2) The multiplication of the reference sources is used as
frequency reference 1.
3
Min (ref1, ref2) The smaller of the reference sources is used as frequency
reference 1.
4
Max (ref1, ref2) The greater of the reference sources is used as frequency
reference 1.
5
28.15 Ext2 frequency ref1 Selects Ext2 frequency reference source 1.
Two signal sources can be defined by this parameter and
28.16
Ext2 frequency ref2. A mathematical function (28.17
Ext2 frequency function) applied to the two signals creates an
Ext2 reference. See diagram at 28.11 Ext1 frequency ref1.
Zero
Zero None. 0
AI1 scaled 12.12 AI1 scaled value (see page 189). 1
No. Name/Value Description Def/FbEq16
Ext1 -> Ext2
t
Reference
Ext1 reference
Ext2 reference
Active reference
Inactive reference
Ext1 -> Ext2
Ext1 reference
Ext2 reference
Active reference
t
Inactive reference
Reference