Ntc Sensor Input; Analog Output - WEG CFW100 Programming Manual

Digital and Analog Inputs and Outputs
(
5
AIx(%) = x (100 %) + (–70 %) x 1 = –20.0 %
10
Another example: AIx = 12 mA, OFFSET = -80.0 %, Gain = 1.000, with signal of 4 to 20 mA, that is, AIx
and AIx = 16.
FE
(
12 – 4
AIx(%) =
16
AIx' = –30.0 % means that the motor will spin forward with a reference in module equal to 30.0 % of P134, if
the signal AIx function is "Frequency Reference".
In the case of filter parameters (P235), 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 NTC SENSOR INPUT

The CFW100-IOADR accessory has an exclusive analog input to connect an NTC sensor. The temperature reading
parameter is described below.
P375 – Value of the NTC Sensor
Adjustable
Range:
Properties:
Description:
This read-only parameter indicates the temperature value obtained from the NTC sensor.
For further details, refer to the Installation, Configuration and Operation Guide of the CFW100-IOADR I/O
Expansion Module.
NOTE!
When the NTC sensor is not connected to the accessory, the CFW100 frequency inverter will show
999 °C in parameter P375. If pins 6 and 7 (accessory connector) are short circuited, the value
indicated in P375 will be 0 °C.

12.3 ANALOG OUTPUT

The analog output (AO1) is configured by means of three types of parameters: Function, Gain and Signal, according
to the block diagram below.
12
12-4 | CFW100
(
(
x (100 %) + (–80 %) x 1 = –30.0 %
0 to 100 °C
ro
FUNCTION
P251
(*) Control terminals available on the accessory.
Figure 12.3: Block diagram of the Analog Output (AO1)
P014
GAIN
SIGNAL
P252
P253
VALUE
AO1 (*)
Return Advance
= 4
ini
Factory
Setting: