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8 OPR CONTROL
8.3 Fast OPR control
8.3.1 Outline of the fast OPR control operation
Fast OPR control start
(Positioning start signal: Y8 to YF)
Md.4 Axis operation status
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Fast OPR operation
In a fast OPR control, positioning control is carried out by a machine OPR control to
the " Md. 1 Current feed value" stored in the QD70D.
By setting "9001" in " Cd. 3 Start method" and turning ON the positioning start signal
(Y8 to YF), fast OPR control performs position control at high speed without using
the positioning data and near-point dog, zero and other signals.
The following is the operation performed at a fast OPR control start.
1) Set "9001" in " Cd. 3 Start method" and turn ON the positioning start signal (Y8
to YF).
2) Position control is started to reach "Md. 1 Current feed value" according to the
OPR data ( OPR. 1 to OPR. 10 ) defined when machine OPR control was
carried out.
3) Fast OPR control is completed.
Pr.6 Bias speed at start
Standby
Fast OPR in progress
Position control to OP
Fig. 8.12 Fast OPR control
Precautions for operation
(1) Start fast OPR control after setting up the machine OP by exercising machine
OPR control.
If fast OPR control is started without machine OPR control being exercised, the
"Machine OPR not execute" error (error code: 203) will occur.
(2) In fast OPR control, the "OPR compete flag" (Md. 7 Status: b1) and "Md. 2
Movement amount after near-point dog ON" are unchanged.
(3) On completion of fast OPR control, "OPR. 3 OP address" is not stored into
"Md. 1 Current feed value".
OPR.4 OPR speed
Standby
M
OP
MELSEC-Q
Position set up by machine OPR control
(OP)
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