Parameter Description              MD280/MD280N User Manual 
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0˖The stop function of STOP/RES key is valid only in the keyboard control 
mode: Only when the command source (F0-00) is set to “Operation Panel 
Control Channel" will the stop function of STOP be valid and the terminal 
and serial communication control mode are invalid.   
1:      The stop function of STOP/RES key is valid in any control mode: The 
stop function of STOP is valid when the command source (F0-00) is in 
“Operation Panel Control Channel", “Terminal Command Channel”, or 
“Serial Port Communication Control Channel”.   
Remark: The fault reset function of the STOP/RES key is valid in any 
control mode.   
software version 
No. 
Factory default value  — 
F7-17 
Setup range    software version No. 
 
Group F8 MS Speed Function and Simple PLC Function 
Simple PLC function means that he inverter has a built-in programmable 
controller (PLC) to perform automatic control on the MS frequency logic. 
The running time, running direction and running frequency can be set to 
comply with the process requirements.   
This inverter can implement 8-segment speed variable control and has two 
types of acceleration/deceleration time for selection.   
When the setup PLC completes one cycle, it can output PLC circulation 
end signal via the multifunctional output terminal DO or multifunctional 
relay (RELAY). Refer to the description of “PLC Circulation End” of the 
output terminal in Group F3 for details.   
When the frequency source selection (F0-01) is set to MS speed running 
mode, it only needs to set the function codes of F8-00 to F8-08 to 
determine its characteristics.   
 
MS speed 0 
reference mode 
Factory default 
value 
0 
0 
Function code 
F8-01 reference 
1 AI1 
2 AI2 
3 PULSE  
F8-00 
Setup 
range 
4 PID 
 
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