WEG CFW-11 Series, Руководство по программированию

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Digital and Analog Inputs and Outputs
13-6
13
The AIx’ internal value is the result of the following equation:
Alx' =
Alx
+
OFFSET
x 10 V x Gain
100
For instance: AIx=5 V, OFFSET=-70 % and Gain=1.000:
Alx' =
5 +
(-70)
x 10 V x1 = –2 V
100
AIx’=-2 V means that the motor will rotate in the reverse direction with a reference in module equal to 2 V, provided
that the AIx function is "Speed Reference". For the AIx function "Maximum Torque Current", negative values are
clipped at 0.0 %.
For the filter parameters (P0235, P0240, P0245 and P0250), the adjusted value corresponds to the RC constant
used for filtering the signal read at the input.
P0233 – AI1 Signal Type
P0243 – AI3 Signal Type
Adjustable
Range: 0 = 0 to 10 V/20 mA
1 = 4 to 20 mA
2 = 10 V/20 mA to 0
3 = 20 to 4 mA Factory
Setting: 0
P0238 – AI2 Signal Type
P0248 – AI4 Signal Type
Adjustable
Range: 0 = 0 to 10 V/20 mA
1 = 4 to 20 mA
2 = 10 V/20 mA to 0
3 = 20 to 4 mA
4 = –10 V to +10 V Factory
Setting: 0
Properties: CFG
Access groups
via HMI: 07 I/O CONFIGURATION or 01 PARAMETER GROUPS
38 Analog Inputs 38 Analog Inputs
Description:
These parameters configure the signal type (if it is current or voltage) that will be read at each analog input, as well as
its range. Refer to the
Table 13.1 on page 13-6 and Table 13.2 on page 13-7 for more details on this configuration.
Table 13.1 - DIP Switches related to the analog inputs
Parameter Input Switch Location
P0233 AI1 S1.4
Control Board
P0238 AI2 S1.3
P0243 AI3 S3.1 IOB
P0248 AI4 S3.1 IOA