Shihlin SA3 Series, Руководство пользователя

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Analog input and output parameter group 02
PARAMETER DESCRIPTION 126

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 02-14(P.194); adjusts input
voltage to maximum value B, and sets parameter 02-15(P.195). As shown below:
The value
of A
The value
of B
02-14
（P.194）
02-15
（P.195）
The signal magnitude
of terminal 2-5
%
Example 1.2: Set 02-14(P.194) and 02-15(P.195) value, then set 02-12(P.192) and 02-13(P.193). Figure is shown
as follows:
02-12
（P.192）
02-13
（P.193）
02-14
（P.194）
02-15
（P.195）
The signal magnitude
of terminal 2-5
%
If the 02-00(P.500) function is selected as 1, 2-5 terminal analog input function is frequency command, the ratio
calculated according to the above figure multiplied by 02-09(P.38) is the actual frequency input value (offset
02-11(P.139) = 0).

Negative voltage setting is the same as positive voltage setting (as described above).
Example 2: This example is the most commonly used method. It is used when inverter is in “external mode",
“combined mode 2”or “combined mode 4”, and frequency command is given by terminal 2-5.
60Hz
10V -10V
30Hz
5V -5V 0V
02-09(
P.38)=60Hz Max operation frequency
02-12（
P.192
）
=0V,
02-13（
P.193
）
=10V The
minimum/maximum input positive voltage of terminal 2-5
02-14（
P.194
）
=0%,
02-15（
P.195
）
=100% The setting
corresponding to the minimum/maximum positive voltage
of terminal 2-5
02-18（
P.510
）
=0%,
02-19（
P.511
）
=100% The setting
corresponding to the minimum/maximum negative voltage
of terminal 2-5
02-16（
P.512
）
=0V,
（ 02-17 ）
P.513=10V The
minimum/maximum input negative voltage of terminal 2-5
02-11（
P.139
）
= 0% The bias rate of 2-5 voltage signal
voltage
Frequency
(Hz)