Pr.09-33 are defined on the basis of whether reference commands have been 
cleared before the PLC operation 
bit 0: Prior to PLC scanning procedures, acts on whether the target frequency has 
been cleared to 0. This is written to the FREQ command when the PLC is 
ON.   
bit 1: Prior to PLC scanning procedures, acts on whether the target torque has 
been cleared to 0. This is written to the TORQ command when the PLC is 
ON.   
bit 2: Prior to PLC scanning procedures, acts on whether speed limits in the 
torque mode have been cleared to 0. This is written to the TORQ command 
when the PLC is ON.   
Example: When using r to write a program,   
 
If we force M0 to 1, the frequency command is 20.00 Hz; but when M0 is 
set to 0, there is a different situation.   
     Case 1: When the Pr.09-33 bit 0 is 0, and M0 is set as 0, then the frequency 
command remains at 20.00 Hz.   
        Case 2: When the Pr.09-33 bit 0 is 1, and M0 is set as 0, then the frequency 
command changes to 0.00 Hz 
This is because when the Pr.09-33 bit 0 is 1 prior to PLC scanning procedures, the 
frequency first reverts to 0.   
When the Pr.09-33 bit 0 is 0, the frequency does not revert to 0.