Parameters 157
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.
0001b
0000h…FFFFh Constant speed configuration word. 1 = 1
22.22 Constant speed
sel1
When bit 0 of parameter 22.21 Constant speed function is 0
(Separate), selects a source that activates constant speed 1.
When bit 0 of parameter 22.21 Constant speed function is 1
(Packed), this parameter and parameters 22.23 Constant
speed sel2 and 22.24 Constant speed sel3 select three
sources whose states activate constant speeds as follows:
DI3
Not selected 0 (always off). 0
Selected 1 (always on). 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 3
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 4
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 5
DI5 Digital input DI5 (10.02 DI delayed status, bit 4). 6
No. Name/Value Description Def/FbEq16
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.
1Direction
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 = Accord Par: The running direction for the constant speed is
determined by the sign of the constant speed setting (parameters
22.26…22.32).
2…15 Reserved
Source defined
by par. 22.22
Source defined
by par. 22.23
Source defined
by par. 22.24
Constant speed active
000 None
1 0 0 Constant speed 1
0 1 0 Constant speed 2
1 1 0 Constant speed 3
0 0 1 Constant speed 4
1 0 1 Constant speed 5
0 1 1 Constant speed 6
1 1 1 Constant speed 7
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