10.7 Some instructions
1．For function code 0x10 and 0x43,when rewrite multiple continous function codes,if any one of the function
codes is invalid for write operation,then it will return error information and all of the parameters can’t be
rewritten.When rewrite multiple continuous control parameters,if any one of the parameters is invalid for write
operation, then it will return error information and this parameter and others behind can’t be rewritten,but
other parameters before this parameter can be rewritten normally.
2．For some special function code, Using 0x06 and 0x41 or 0x10 and 0x43 are the same function,in write
operation,the parameters can be saved after power failure.
Parameters protection setting
Selection of input terminal X1~X6
Main reference frequency control
Auxiliary reference frequency control
Swing frequency operation mode
Machine model setting(Factory parameter)
VFD series selection(Factory parameter)
3．Some control parameters can’t save in EEPROM,so for these parameters,using function code 0x41 and
0x06 or 0x43and 0x10 are the same,mean parameters can be saved after power failure.
4．Some internal parameters of VFD are reserved and can’t be changed via communication,refer to following
table：
Motor parameters auto-tuning
5．The operation of user password and factory password in host computer
（1）User password
1 ） Protection of user password ： read/write function code,function code management(except “read
address of displaydata” and”switch display data”)
2）If you set user password（A0.00!=0）,then you must enter the right password to A0.00 when you want
to visit function code,but control parameters and status parameters are not protected by user password.
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