Shihlin electric SC3 Series User Manual

Analog input and output parameter group 02
PARAMETER DESCRIPTION 79
5.3.1 Proportional linkage gain
 This function is used to multiply frequency command from external analog input terminal. When multiple inverters
are running in proportion, it is effective to use this function to fine-tune the frequency command from master
inverter to slave inverter.
Parameter
Name
Default
Setting Range
Content
02-06
P.185
Proportional linkage
gain
0%
0～100%
---
Proportional linkage gain

When output frequency is lower than 01-01(P.2), it is equal to lower limit frequency 01-01(P.2). When output
frequency is higher than 01-00(P.1), it is equal to upper limit frequency 01-00(P.1).

After multiplying the setting frequency by 02-06(P.185) value, add and subtract can be performed as follows:
For example: When the setting frequency is 50Hz, 02-06(P.185)=50% and the external analog input signal is
0~10V.
25HZ
0V 5V 10V
50HZ
75HZ
100HZ
The target frequency
Terminal 3-5 voltage
input
02-06
P.185)=100%
02-06
P.185)=50%
In the above figure, when 0V is given, the target frequency is 50Hz - (50Hz × 50%) = 25Hz;
when 5V is given, the target frequency is 50Hz - (50Hz × 0%) = 50Hz;
when 10V is given, the target frequency is 50Hz + (50Hz × 50%) = 75Hz.
Note: 1. For proportional linkage signal input, please refer to the description of parameter 02-07 (P.240).
2. When use terminal 3-5 analog (voltage/current) signal as proportional linkage signal input terminal, please
refer to parameter 02-20(P.17)；for the setting of external analog signal frequency range, please refer to
parameter 02-21(P.39)。
Setting

Shihlin electric SC3 Series Specifications

General

Brand	Shihlin electric
Model	SC3 Series
Category	Inverter
Language	English