WEG CFW500 V1.8X, Руководство по программированию, Страница: 112 / 172

Digital and Analog Inputs and Outputs
12-6 | CFW500
12
AIx(%) = x (100 %) + (-80 %) x 1 = -30.0 %
12 – 4
16
( (
AIx’ = -30.0 % means that the motor will spin counterclockwise with a reference in module equal to 30.0 % of
P0134 if the signal AIx function is "Speed Reference".
In the case of filter parameters (P0235, P0240 and P0245), the value set corresponds to the time constant used to
filter the input signal read. Therefore, the filter response time is around three times the value of this time constant.
12.2 ANALOG OUTPUTS
The analog outputs (AOx) are configured by means of three types of parameters: function, gain and signal, as per
block diagram of
Figure 12.3 on page 12-6 .
The standard CFW500-IOS plug-in module has just the analog output AO1, but the CFW500-IOAD plug-in provides
one more analog output AO2.
Gain
AO1 – P0252
AO2 – P0255
AO1 – P0014
AO2 – P0015
Function
AO1 – P0251
AO2 – P0254
P0001
P0002
P0003
P0040
P0011
P0041
P0009
SoftPLC
P0037
P0696
P0697
P0698
Value AOx
AO1 (*)
AO2 (*)
Signal
AO1 – P0253
AO2 – P0256
(*) Control terminals available in the plug-in module.
Figure 12.3: Block diagram of analog outputs – AOx
P0014 – Analog Output AO1 Value
P0015 – Analog Output AO2 Value
Adjustable
Range:
0.0 to 100.0 %
Factory
Setting:
Properties: ro
Access Groups
via HMI:
READ, I/O
Description:
Those read-only parameters indicate the value of the analog outputs AO1 and AO2 in percentage of the full
scale. The indicated values are those obtained after the multiplication by the gain. Check the description of
parameters P0251 to P0256.