Chapter 8 Opr Control; Overview Of The Opr Control; Two Types Of Opr Controls - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

8
OPR CONTROL
This chapter describes the details and usage of the OPR control.
8.1

Overview of the OPR Control

Two types of OPR controls

The OPR control establishes a start point (= OP) for performing the positioning control, and implements positioning toward
that start point. This control is used to return the machine system located at a position other than the OP to the OP when the
positioning module issues an OPR request with the power turned ON or after the positioning stops.
In the positioning module, the two types of controls shown below are defined as OPR control, following the flow of the OPR
work. These two types of OPR controls can be implemented by setting the OPR parameter, setting "Positioning start No.9001"
and "Positioning start No. 9002" originally prepared for the positioning module in "[Cd.3] Positioning start No.", and turning ON
the positioning start signal.
OPR method
Machine OPR (Positioning start No.9001)
Fast OPR (Positioning start No.9002)
The OPR control can be performed by setting 9001 or 9002 for the start No. of the dedicated instruction GP.PSTRT. For
details on the dedicated instructions, refer to the following.
 MELSEC iQ-F FX5 Programming Manual (Instructions, Standard Functions/Function Blocks)
To perform Fast OPR, perform Machine OPR beforehand.
In the following cases, the positioning module turns ON the OPR request flag ([Md.31] Status: b3), which
indicates that machine OPR needs to be implemented.
• When the power is turned ON
• When the drive unit READY signal ([Md.30] External I/O signal: b2) turns ON→OFF
• When "[Cd.190] PLC READY signal" turns OFF→ON
While the OPR request flag is ON, the address information stored in the positioning module is not assured.
When implementation of the machine OPR finishes normally, the OPR request flag turns OFF and the OPR
complete flag ([Md.31] Status: b4) turns ON.
Sub functions specific to OPR
For details on Sub functions that can be combined with the OPR control, refer to the following.
Page 29 Combining Main and Sub Functions
For details on each sub function, refer to the following.
Page 209 CONTROL SUB FUNCTION
[Information]
The following two sub functions are only related to the machine OPR.
: Combinations possible
: Limits ON
: Cannot be combined
Sub function name
OPR retry function
OP shift function
8 OPR CONTROL
72
8.1 Overview of the OPR Control
Description
Performs the OPR operation to establish a machine OP position. Subsequent positioning control
operations are performed with reference to the OP established after the OPR operation is completed.
When the system is turned ON and a machine OP has yet to be established (the current value that the
positioning module monitors and the actual machine position do not match), machine OPR needs to be
implemented.
Performs the positioning toward the OP established by the machine OPR. Specifying positioning start
No.9002 performs the fast OPR. Thus, the positioning to the OP can be performed without setting
positioning data.
Machine OPR


Fast OPR


Reference
Page 211
Page 215