Chapter 5 Parameter Introductions
145
If Pb.03 is set to zero, this function is disabled.
If Pb.03 is not set to zero, overtime detection is enabled. And the detecting time is
the setting value of Pb.03. If in detecting time, abnormal data is be sent or
received, the inverter will stop immediately and display EF0. It need to manual
reset.
Tips:
If in detect time the slave just receive abnormal data, it will stop and display EF0.
Pb.04 Response delay time
Range: 0~500ms【5ms】
Note:
It refers to the time from inverter receiving the host PC command to returning
response frame to it.
Pb.05 MODBUS frequency reference unit
Range: 0,1【0】
0:0.01Hz 1:0.1Hz
Note:
It can be used to select the frequency unit of communication command.
The output frequency resolution of this series inverter is 0.01Hz. If the frequency
reference unit is set to 0.01Hz in parameter Pb.05 (Pb.05=0), the unit of the
received frequency reference will be treated as 0.01Hz. If Pb.05 is set to 1 (0.1Hz),
the unit of the received frequency reference will be treated as 0.1Hz and the value
will be automatic transferred to 0.01Hz internally. For example, if the frequency
command is 01F4H (the hexadecimal value of 500), it will be treated as 5.00Hz
when Pb.05 is set to 0. Or it will be automatic transferred to 50.0(0) Hz and treated
as 50.00 Hz when Pb.05 is set to 1.
Pb.06 Selection of MODBUS data storage
Range:0,1【0】
0: Not save to EEPROM 1: Directly save to EEPROM
Note:
This function code is used to select whether to save the MODBUS data to
EEPROM or not. If pb.06 is set as 1, parameters that modified by MODBUS
communication will be saved to EEPROM directly. However, if Pb.06 is set as 0,
the modified parameters will not be saved to EEPROM, but stored in RAM and
they will be lost when power is off. The other method to save the data to
EEPROM is that write the MODBUS address corresponding to the modified
parameter to 0x00FF, then the data will be saved to EEPROM which acts as the
“ENTER “key to save the data.
Write or erase EEPROM frequently will reduce the life of EEPROM. Write
parameter data and save the data to EEPROM frequently in communication mode
is not allowed; for writing data frequently, you must modify Pb.06 as 0.
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