7.Application Examples
EM8 User's Manual
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Diagram 7-6: External voltage realizes many sets inverter linkage running control mode diagram
7.6.1.3 Operating instructions
The diagram shows, there is a need for a constant power supply (10 V), a high power adjustable resistance,
through regulating adjustable resistance voltage, all inverter V1 end input voltage will be changed. When
many sets inverter operates, regulating V1 end input voltage; they at the same rate raise or lower the
frequency. At this time, each table inverter input set function is: input set frequency = external voltage
signal 1 (V1) * panel potentiometer input signal. The type show that external voltage signal (-10V) signal is
same, when change panel potentiometer signal input, the table of the frequency inverter frequency input set
change. So we realized the household output-related system of frequency input set.
7.6.2 Using RS485 constitute a linkage running
7.6.2.1 Parameter settings
According to the motor rated nameplate data, to set parameter A-5, A-6.
Must set parameters as following:
[A-0] = 2: Parameter A-0 set to 2 to choose senior parameters running mode.
[A-1] = 7: Slave inverter frequency setting channel set to RS485 mode.
[A-3] = 3, 4: Slave inverter running command channel set to RS485 mode.
[C-79]: Data format, all frequency inverters data format should set to be same.
