WEG CFW501 V1.8X Programming Manual page 110

Digital and Analog Inputs and Outputs
P0230 – Dead Zone of the Analog Inputs
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
This parameter acts just for the analog inputs(AIx) programmed as frequency reference, and defines if the dead
zone in those inputs is Active (1) or Inactive (0).
If the parameter is configured as Inactive (P0230 = 0), the signal in the analog inputs will actuate on the
frequency reference from the minimum point (0 V / 0 mA / 4 mA or 10 V / 20 mA), and it will be directly related
to the minimum speed set in P0133. Check
dead zone (a) and active dead zone (b) on page
If the parameter is configured as Active (P0230 = 1), the signal in the analog inputs will have a dead zone, where
the speed reference remains at the Minimum Speed value (P0133), even with the variation of the input signal.
Check Figure 12.1: (a) and (b) Actuation of the analog inputs with inactive dead zone (a) and active dead zone
(b) on page 12-2.
P0134
P0133
0
0...........................................10 V
0.........................................20 mA
4 mA...................................20 mA
10 V..........................................0
20 mA.....................................0
20 mA.................................4 mA
12
Figure 12.1: (a) and (b) Actuation of the analog inputs with inactive dead zone (a) and active dead zone (b)
In the case of analog inputs AI3 set for -10 V to +10 V (P0243 = 4), we will have curves similar to
(a) and (b) Actuation of the analog inputs with inactive dead zone (a) and active dead zone (b) on page
except that when AI3 is negative, the direction of rotation will be the opposite.
12-2 | CFW501
0 = Inactive
1 = Active
cfg
I/O
Reference
Signal AIx
(a)
Figure 12.1: (a) and (b) Actuation of the analog inputs with inactive
12-2.
Reference
P0134
P0133
0
0...........................................10 V
0.........................................20 mA
4 mA...................................20 mA
10 V..........................................0
20 mA.....................................0
20 mA.................................4 mA
Factory 0
Setting:
Signal AIx
(b)
Figure 12.1:
12-2;