Qd75Mh Initial Value Setting Method - Mitsubishi Electric QD77MS User Manual

[3] Precautions during control
Important
Parameter initialization takes about 10 seconds. (Up to 30 seconds are sometimes
required.)
Do not turn the power ON/OFF or reset the PLC CPU during parameter
initialization. If the power is turned OFF or the PLC CPU module is reset to forcibly
end the process, the data backed up in the flash ROM/internal memory
(nonvolatile) will be lost.

[4] QD75MH initial value setting method

Setting item
QD75MH initial
[Cd.47]
value setting request
: Refer to Section 5.7.1 "System control data" for details on the setting details.
(1) Parameter initialization is only executed when the positioning control is not
carried out (when the PLC READY signal [Y0] is OFF).
The warning "In PLC READY" (warning code: 111) will occur if executed
when the PLC READY signal [Y0] is ON.
(2) Writing to the flash ROM is up to 100,000 times. If writing to the flash ROM
exceeds 100,000 times, the writing may become impossible, and the error
"Flash ROM write error" (error code: 801) will occur.
(3) A "PLC CPU reset" or "PLC CPU power restart" must be carried out after
the parameters are initialized.
(4) When using the QD77MS16, the setting value is set to "1" even though the
initial value setting is executed by this function because the initial value of
QD75MH "0" is out of the setting range in "[Pr.80] External input signal
selection".
(1) QD75MH initial value setting is carried out by the writing of the data shown in
the table below to the buffer memory using the TO command/intelligent
function device.
The initialization of the parameter is executed at the time point the data is
written to the buffer memory.
Setting
value
Set "1" (Requests QD75MH initial value
1
setting).
When the initialization is complete, "0" will be set in "[Cd.47] QD75MH initial
value setting request" automatically.
Setting details
14 - 64
Chapter 14 Common Functions
Buffer memory address
QD77MS2
QD77MS16
QD77MS4
1909 5909