SSINVERTER SSI700, User Manual, Page: 40 / 148

SSI700 User Manual Operation, Display and Application Example
www.ssinverter.info
Terminal Input Signal Characteristic
AI1-GND It receives the signal of 0–10 VDC.
AI2-GND
If J8 is connected to the position with "V" mark, it receives the signal of 0–10 VDC.
If J8 is connected to the position with "I" mark, it receives the signal of 4–20 mA.
AO1 can be used to indicate the internal running parameters in the analog mode.
The property of indicated parameters can be defined by P5-07 and P5-08.
The designated running parameters can be rectified before output. The rectification
feature is Y = kX + b, among which "X" indicates the running parameters to be output, and
"k" and "b" of AO1 can be set by P5-10 and P5-11.
Figure 4-31 Setting of "k" and "b" of AO1
4.12 Use of Serial Communication
When communication mode RS485 on the SSI700 series AC drive, and set P0-28
correctly according to the used communication protocol type.
For the configuration of hardware communication parameters for the communication port,
see group 13. Set the communication rate and data format to consistent with those of the
host computer, which is the precondition of normal communication.
The SSI700 serial port itself supports the Modbus RTU slave communication protocol.
You can query or modify the AC drive's function codes, query various running state
parameters, and send running command and running frequency to the AC drive from the
host computer through the serial port.
Figure 4-32 Communication control mode of the AC drive
The SSI700 arranges the function codes, running state parameters and running
commands in the "register parameter address" mode. The host computer can define the
protocol of communication data interaction.
4.13 Password Setting
The AC drive provides the user password protection function. When 16-00 is set to a
nonzero value, the value is the user password. The password takes effect after you after
exit the function code editing state. When you press again, "------" will be displayed,
and you must enter the correct user password to enter the menu.
To cancel the password protection function, enter with password and set 16-00 to 0.