WEG CFW-11 Programming Manual page 162

Digital and Analog Inputs and Outputs
Description:
This parameter acts only for the analog inputs (AIx) programmed as speed reference, and it defines if the Dead Zone
at those inputs is On (1) or Off (0).
If the parameter is configured as Off (P0230=0), the signal at the analog input will work on the Speed Reference
starting from the minimum value (0 V / 0 mA / 4 mA or 10 V / 20 mA), and will be directly related to the minimum
speed programmed at P0133. Refer to the figure 13.1 (a).
If the parameter is configured as On (P0230=1), the signal at the analog inputs will have a Dead Zone, where the
Speed Reference remains in the minimum value (P0133), even with the variation of the input signal. Refer to the
figure 13.1 (b).
P0134
P0133
0
0 ................................... 10 V
0 ..................................20 mA
4 mA ..............................20 mA
10 V .................................. 0
20 mA ............................... 0
20 mA .............................4 mA
Figure 13.1 (a) - Analog input actuation with
In case that the analog inputs AI2 and AI4 are programmed for -10 V to +10 V (P0238 and P0248 configured in 4),
there will be curves identical to those of the figure 13.1 above; only when AI2 or AI4 is negative the speed direction
will be inverted.
P0231 – ai1 Signal function
P0236 – ai2 Signal function
P0241 – ai3 Signal function
Adjustable
Range:
13
13-2
Reference
AIx Signal
Dead Zone Off
0 = Speed Reference
1 = No Ramp Reference
2 = Maximum Torque Current
3 = Process Variable
4 = PTC
5 = Not Used
6 = Not Used
7 = PLC Use
Reference
P0134
P0133
0
0 ................................... 10 V
0 ..................................20 mA
4 mA ..............................20 mA
10 V .................................. 0
20 mA ............................... 0
20 mA .............................4 mA
Figure 13.1 (b) - Analog input actuation with
Dead Zone On
AIx Signal
Factory 0
Setting: