Filter
Top Products
13 - 7
MELSEC-Q
13 COMMON FUNCTIONS
13.4 External signal selection function
When the upper/lower limit signal and near point dog signal is connected, either the
external device connector of QD75MH or external input signal of servo amplifier (PIN
No. CN3-2, CN3-12, CN3-19) is selected whether use it.
The details shown below explain about the "External signal selection function".
[1] Parameter setting details
[2] Precautions on parameter setting
[1] Parameter setting details
The use the "External signal selection function", set the parameters shown in the
following table.
Buffer memory address
Setting item
Setting
value
Setting details
Axis
1
Axis
2
Axis
3
Axis
4
Pr.80
External signal
selection
0
Set the external signal selection.
0: External input signal of QD75MH
1: External input signal of servo amplifier
32 182 332 482
The use the "External input signal of QD75MH/servo amplifier", set the Pin No.
shown in the following table.
Setting details
0: External input signal of QD75MH 1: External input signal of servo amplifier
Axis No. Pin No. Signal name Pin No.
Signal name
1A3
DOG
1A2
RLS
Axis 1
1A1
FLS
2A3
DOG
CN3-19
(DI3)
DOG
2A2
RLS
Axis 2
2A1
FLS
3A3
DOG
3A2
RLS
CN3-12
(DI2)
RLS
Axis 3
3A1
FLS
4A3
DOG
4A2
RLS
QD75MH
Axis 4
4A1
FLS
Servo amplifier
CN3-2
(DI1)
FLS
Refer to the MR-J3-B Instruction Manual for details on the pin No. (servo amplifier).
[2] Precautions on parameter setting
(1) When external input signal of the servo amplifier is used, the "Count method
1) and 2)" OPR method can not be used as a near-point dog signal. ("Illegal
near-point dog signal error" (error code: 220) occurs when the positioning
starts.)