WEG CFW300 V1.3X, Руководство по программированию

Страница: 94 / 157

Digital and Analog Inputs and Outputs
12-2 | CFW300
12
If the parameter is set as Active (P230 = 1), the signal in the analog inputs will have a dead zone, where the
frequency reference remains at the Minimum frequency value (P133), even with the variation of the input signal.
Check
Figure 12.1 on page 12-2 .
Reference Reference
Signal AIx
Signal AIx
(a) Inactive Dead Zone
(b) Active Dead Zone
P134 P134
P133 P133
0 0
0.................................................10 V
0.................................................20 mA
4 mA............................................20 mA
10 V................................................0
20 mA............................................0
20 mA............................................4 mA
0.................................................10 V
0.................................................20 mA
4 mA............................................20 mA
10 V................................................0
20 mA............................................0
20 mA............................................4 mA
Figure 12.1: (a) and (b) Actuation of the analog inputs with inactive dead zone and active dead zone
P231 - AI1 Signal Function
P236 - AI2 Signal Function
Adjustable
Range:
0 = Frequency Reference
1 to 3 = Not Used
4 = PTC
5 and 6 = Not Used
7 = SoftPLC
8 = Application Function 1
9 = Application Function 2
10 = Application Function 3
11 = Application Function 4
12 = Application Function 5
13 = Application Function 6
14 = Application Function 7
15 = Application Function 8
16 = Control Setpoint (PID Controller Application)
17 = Process Variable (PID Controller Application)
Factory
Setting:
0
Properties: