Mitsubishi MELSEC-Q QD77MS - Page 776

14 - 9
Chapter 14 Common Functions
[2] Precautions during parameter setting
(1) When the "3: External input signal 1 of QD77MS", "4: External input signal 2
of QD77MS", "5: External input signal 3 of QD77MS", or "6: External input
signal 4 of QD77MS" is set in the QD77MS2/QD77MS4, "External input
signal selection error" (error code: 936) occurs when the PLC READY signal
[Y0] is turned ON, and the QD77 READY signal [X0] will not be turned ON.
Set "0: External input signal of QD77MS" to use the external input signal of
QD77MS2/QD77MS4.
(2) When the "0: External input signal of QD77MS" is set in the QD77MS16,
"External input signal selection error" (error code: 936) occurs when the PLC
READY signal [Y0] is turned ON, and the QD77 READY signal [X0] will not
be turned ON.
Set "3: External input signal 1 of QD77MS", "4: External input signal 2 of
QD77MS", "5: External input signal 3 of QD77MS", or "6: External input signal
4 of QD77MS" to use the external input signal of QD77MS16.
[3] Control details
The following table shows the external signal that becomes valid by setting
"
Pr.80 External input signal selection".
" Pr.80 External input signal selection"
External signal that becomes valid
External input signal of QD77MS
(Setting value: 0, 3, 4, 5, 6)
Upper/lower stroke limit signal : External input signal of QD77MS
(FLS, RLS)
Near-point dog signal : External input signal of QD77MS (DOG)
Stop signal : External input signal of QD77MS (STOP)
External command/switching signal: External input signal of QD77MS (DI)
External input signal of servo amplifier
(Setting value: 1)
Upper/lower stroke limit signal : External input signal of servo amplifier
(FLS, RLS)
Near-point dog signal : External input signal of servo amplifier
(DOG)
Stop signal : External input signal of QD77MS (STOP)
QD77MS2 QD77MS4
/
Buffer memory of QD77MS (STOP)
QD77MS16
External command/switching signal: External input signal of QD77MS (DI)
Buffer memory of QD77MS
(Setting value: 2)
Upper/lower stroke limit signal : Buffer memory of QD77MS (FLS, RLS)
Near-point dog signal : Buffer memory of QD77MS (DOG)
Stop signal : Buffer memory of QD77MS (STOP)
External command/switching signal: External input signal of QD77MS (DI)