Mitsubishi Electric MELSEC-Q Series User Manual page 720

Setting item
[Cd.44]
: Refer to Section 5.7 "List of control data" for details on the setting details.
[2] Precautions during parameter setting
[3] Control details
"[Pr.80] External input signal selection"
External input signal of servo amplifier
(Setting value: 1)
Buffer memory of QD77GF
(Setting value: 2)
(2) When "2: Buffer memory of QD77GF" is set, use the following control data to
operate the external input signal (upper/lower limit signal, proximity dog signal
and stop signal).
Setting
value
External input
signal operation
device
(1) When the value which cannot be used is set, the error "External input signal
selection error" (error code: 936) occurs at turning the PLC READY signal
[Y0] ON, and the READY signal [X0] is not turned ON.
(2) When "1:External input signal of servo amplifier" is set, use a servo amplifier
which enables input of the external input signal.
(3) When "2: Buffer memory of QD77GF" is set, operation is affected by the PLC
scan time.
(4) When using MR-J4-GF, the servo parameter "Function selection D-4 (PD41)"
is required to be set as shown in the following table. [CiA402 mode]
Refer to Section 13.4.4 "Hardware stroke limit function".
[Pr.80] External input signal selection
1: External input signal of servo
amplifier
2: Buffer memory of QD77GF
The following table shows the external signal that becomes valid by setting
"[Pr.80] External input signal selection".
Upper/lower stroke limit signal
Proximity dog signal
Stop signal
External command/switching signal: External input signal of QD77GF (DI)
Upper/lower stroke limit signal
Proximity dog signal
Stop signal
External command/switching signal: External input signal of QD77GF (DI)
Setting details
Set the status of the upper/lower limit signal,
the proximity dog signal and the stop signal.
Setting of servo parameter "Function
selection D-4 (PD41)"
01_ _H
11_ _H
External signal that becomes valid
: External input signal of servo amplifier
(LSP, LSN)
: External input signal of servo amplifier
(DOG)
: Buffer memory of QD77GF (STOP)
: Buffer memory of QD77GF (FLS, RLS)
: Buffer memory of QD77GF (DOG)
: Buffer memory of QD77GF (STOP)
14 - 8
Chapter 14 Common Functions
Buffer memory
address
5928
to
5931