Data Used For Control - Mitsubishi Electric MELSEC Q Series User Manual

10 FUNCTION DETAILS

10.4.3 Data used for control

Symbol
Pr.4
Parameter
Pr.6
The unlimited length feed cannot be executed in QD74MH. (The software stroke limit cannot be
invalidated.)
The moveable range of QD74MH is "-2147483648 to 2147483647". Return to within the
moveable range by JOG, etc. if it exceeds the moveable range.
An error will occur if the outside the settable range is set. The error occurrence timing
and the operation are shown below.
(1) At OPR start
The above setting range is checked. An "error code 1101" will occur if the
outside the settable range is set, and the OPR does not start. ("OPR request
( Status 1: b0)" turns ON.)
Md.9
(2) At first PLC READY ON (OPR completion in the absolute position system)
The above setting range is checked. An "error code 1101" will occur if the
outside the settable range is set, and the current value is not restored. (The
current value is set to "0", and "OPR request (
Set the following parameters for the software stroke limit function.
Refer to Section 6.3 to 6.8 for the buffer memory address and details.
Item
Software stroke limit upper limit
value
Software stroke limit lower limit
value
POINT
If the upper software stroke limit value is the lower value or less, an "error code
1504" will occur at positioning start.
Set the upper limit value for software stroke limit.
Set the lower limit value for software stroke limit.
CAUTION
10 - 11
MELSEC-Q
Status 1: b0)" turns ON.)
Md.9
Details