ABB ACS880 - Page 225

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
3Drive generates a warning (A8A0 AI Supervised
Warning) and freezes the speed (or frequency) to the
level the drive was operating at. The speed/frequency
is determined on the basis of actual speed using 850
ms low-pass filtering.
WARNING!
Make sure that it is safe to continue operation
in case of a communication break.
Last speed
4Drive generates a warning (A8A0 AI Supervised
Warning) and sets the speed to the speed defined by
parameter 22.41 Speed ref safe (or 28.41 Frequency ref
safe when frequency reference is being used).
WARNING!
Make sure that it is safe to continue operation
in case of a communication break.
Speed ref safe
- / uint16Specifies the analog input limits to be supervised. See
parameter 12.3 AI supervision function.
AI supervision
selection
12.4
1 = Minimum limit supervision of AI1 active.AI1 < MINb0
1 = Maximum limit supervision of AI1 active.AI1 > MAXb1
1 = Minimum limit supervision of AI2 active.AI2 < MINb2
1 = Maximum limit supervision of AI2 active.AI2 > MAXb3
Reservedb4…15
1 = 10000h…FFFFh
- / uint16Activates analog input supervision separately for each
control location (see section Local control vs. external
control (page 39)).
The parameter is primarily intended for analog input
supervision when the input is connected to the
application program and not selected as a control
source by drive parameters.
AI supervision force12.5
1 = AI1 supervision active when EXT1 is being used.AI1 Ext 1b0
1 = AI1 supervision active when EXT2 is being used.AI1 Ext 2b1
1 = AI1 supervision active when local control is being
used.
AI1 Localb2
Reservedb3
1 = AI2 supervision active when EXT1 is being used.AI2 Ext 1b4
1 = AI2 supervision active when EXT2 is being used.AI2 Ext 2b5
1 = AI2 supervision active when local control is being
used.
AI2 Localb6
Reservedb7…15
1 = 10000 0000b…0111
0111b
Parameters 225