182 Parameters
22.19
Ext2 speed ref2
Selects Ext2 speed reference source 2.
For the selections, and a diagram of reference source
selection, see parameter
22.18
Ext2 speed ref1
.
Zero
22.20
Ext2 speed function
Selects a mathematical function between the reference
sources selected by parameters
22.18
Ext2 speed ref1
and
22.19
Ext2 speed ref2
. See diagram at
22.18
Ext2
speed ref1
.
Ref1
Ref1
Signal selected by
Ext2 speed ref1
is used as speed
reference 1 as such (no function applied).
0
Add (ref1 + ref2)
The sum of the reference sources is used as speed
reference 1.
1
Sub (ref1 - ref2)
The subtraction ([
22.11
Ext1 speed ref1
] - [
22.12
Ext1
speed ref2
]) of the reference sources is used as speed
reference 1.
2
Mul (ref1 × ref2)
The multiplication of the reference sources is used as
speed reference 1.
3
Min (ref1, ref2)
The smaller of the reference sources is used as speed
reference 1.
4
Max (ref1, ref2)
The greater of the reference sources is used as speed
reference 1.
5
Abs (ref1)
The absolute value of the reference sources is used as
speed reference 1
6
22.21
Constant speed
function
Determines how constant speeds are selected, and
whether the rotation direction signal is considered or not
when applying a constant speed.
0b0001
0b0000...ob1111
Constant speed configuration word.
1 = 1
No.
Name/Value
Description
Default
FbEq 16
Bit
Name
Information
0
Constant speed
mode
1 = Packed: 7 constant speeds are selectable using the three sources
defined by parameters
22.22
,
22.23
and
22.24
.
0 = Separate: Constant speeds 1, 2 and 3 are separately activated by
the sources defined by parameters
22.22
,
22.23
and
22.24
respectively.
In case of conflict, the constant speed with the smaller number takes
priority.
1
Direction
enable
1 = Start dir: To determine running direction for a constant speed, the
sign of the constant speed setting (parameters
22.26
…
22.32
) is
multiplied by the direction signal (forward: +1, reverse: -1). This
effectively allows the drive to have 14 (7 forward, 7 reverse) constant
speeds if all values in
22.26
…
22.32
are positive.
WARNING:
If the direction signal is reverse and the active
constant speed is negative, the drive will run in the forward
direction.
0 = According to Par: The running direction for the constant frequency is
determined by the sign of the constant speed setting (parameters
28.26
…
28.32
).
2
Speed step
1 = Speed step enable; 0 = Speed step disable
3…15
Reserved
ACS380 FW.book Page 182 Friday, May 4, 2018 4:18 PM
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