Chapter 16 PLC Function ApplicationsC2000 Plus
16-125
Pr. 09-33 are defined on the basis of whether reference commands have been
cleared before PLC operation.
bit0: Prior to PLC scanning procedures, whether the target frequency has been
cleared is 0. (This will be written to the FREQ command when the PLC is On)
bit1: Prior to PLC scanning procedures, whether the target torque has been
cleared is 0. (This will be written to the TORQ command when the PLC is On)
bit2: Prior to PLC scanning procedures, whether speed limits in the torque mode
have been cleared is 0. (This will be written to the TORQ command when the
PLC is On)
Example: When using r to write a program
END
K2000
M0
K1000
K1000
FREQ
If we force M0 to be 1, the frequency command will be 20.00Hz; but when M0 is
set as 0, there will be a different situation.
Case 1: When the Pr.09-33 bit 0 is 0, and M0 is set as 0, the frequency command
will remain at 20.00Hz.
Case 2: When the Pr.09-33 bit 0 is 1, and M0 is set as 0, the frequency command
will change to 0.00Hz.
The reason for this is that when the Pr.09-33 bit 0 is 1 prior to PLC scanning
procedures, the frequency will first revert to 0.
When the Pr.09-33 bit 0 is 0, the frequency will not revert to 0.
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