Mitsubishi Electric MELSEC-Q Series User Manual page 77

3 SPECIFICATIONS
3 - 42
(2) Execution of SV tracking
The SV tracking function is enabled by setting 1 (Enable SV tracking) in SV
tracking setting (buffer memory address: 203, 219). To execute SV tracking in
cascade control, set 1 (Enable SV tracking) in only CH2 SV tracking setting
(buffer memory address: 219).
(3) Operation of SV tracking
The operation of the SV tracking function is as shown below.
(a) Control mode shift from the program control mode
The SV tracking function operates as shown below.
The value in Set value monitor (buffer memory address: 25, 26) at the shift
to the normal control mode is set as the set value (SV). Then, the value in
Control mode monitor (buffer memory address: 30) is changed.
To change the set value (SV) after the control shift, check that the mode has
shifted from the program control mode before changing a setting. The
control mode can be checked in Control mode monitor (buffer memory
address: 30).
MELSEC-Q
3 - 42