WEG CFW300 V1.3X, Programming Manual

Page: 102 / 157

Digital and Analog Inputs and Outputs
12-10 | CFW300
12
P246 - Frequency Input FI
Adjustable
Range:
0 = Inactive
1 = Active in DI1
2 = Active in DI2
3 = Active in DI3
4 = Active in DI4 Factory
Setting:
0
Properties: cfg
Description:
When set to "0" the frequency input is inactive, keeping parameter P022 at zero. In the other cases, this parameter
activates the frequency input on the DIx, making any other function in this digital input DIx (P263-P266) be
ignored, and the value of its respective bit in parameter P012 is kept at "0". In order to do so, it is also necessary
to configure parameters P221 and/or P222, selecting the use of the frequency input.
P247 - Input Gain in Frequency FI
Adjustable
Range:
0.000 to 9.999 Factory
Setting:
1.000
P248 - Minimum Frequency Input FI
Adjustable
Range:
1 to 3000 Hz Factory
Setting:
100 Hz
P249 - Input Offset in Frequency FI
Adjustable
Range:
-100.0 to 100.0 %
Factory
Setting:
0.0 %
P250 - Maximum Frequency Input FI
Adjustable
Range:
1 to 3000 Hz Factory
Setting:
1000 Hz
Properties:
Description:
Those parameters define the behavior of the frequency input according to the equation:
FI = x (100 %) + P249 x P247
FI (Hz) - P248
P250 - P248
( (
( (
Parameters P248 and P250 determine the operation range of the frequency input (FI), while parameters P249 and
P247 determine the offset and gain, respectively. For example, Fl = 2000 Hz, P248 = 1000 Hz, P250 = 3000 Hz,
P249 = -70.0 % and P247 = 1.000, thus:
FI = x (100 %) - 70 % x 1.000 = -20.0 %
2000 - 1000
3000 - 1000
( (
( (