Shihlin electric SL3 Series, Руководство пользователя

Страница: 82 / 211

Analog input and output parameter group 02
PARAMETER DESCRIPTION 80
4mA 20mA
T
ar
ge
t fr
eq
ue
nc
y
02-21
（P.39）
Terminal 3-5
current signal
02-20（P.17） = 0
0V 5V
Ta
rg
et
fre
qu
en
cy
02-21
（P.39）
Terminal 3-5
voltage signal
02-20（P.17） = 1,2
10V 0V

When using the VR knob on built-in keypad to set frequency, if want to set frequency not 0Hz when the knob is
turned to the minimum value, set 02-62 (P.76).
For example: need frequency to be 10Hz when the knob is turned to the minimum value, set 02-62(P.76)=10.00
Hz, then the setting range of the target frequency when the knob is turned is 10.00Hz~02-21 (P.39) setting value,
as shown in the figure below:
Keypad knob setting range
02- 21( P. 39)
10. 00Hz
0Hz
Target frequency
Terminal 3-5 input signal processing

Parameters above define the relationship between analog input voltage and set value in analog input. When
analog input voltage exceeds maximum or minimum range of the set value, the excess part will be calculated as
maximum and minimum input.

There are two setting steps when setting maximum and minimum percentage:
1) If users want to adjust the analog input to correspond with a certain type of proportional relationship, Adjust
the analog input first and then set the corresponding proportional parameter. Inverter will calculate it by itself,
don’t need to set the voltage parameter (refer to Example 1.1).
2) If users skip the adjustment of analog input and set proportional relationship directly, first set proportional
parameter then set voltage parameters (refer to the example 1.2).
Example 1.1: User adjusts analog input voltage to minimum value A and sets parameter 02-25(P.198) adjusts
input voltage to maximum value B, and sets parameter 02-26(P.199)
. As shown below:
A value
B value
02-27
（P.196）
02-28
（P.197）
Terminal 3-5 signal
%
Setting