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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
4 Before Programming
4.6 Setting of Various Items on Servo Amplifier (Drive Unit) Side
B - 67
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
3) High-speed output special adapter (set to "forward/reverse rotation pulse train")
a) Connection of PLC to servo amplifier
b) Image of PLC output and output waveform
The output waveform shown below is based on the SGA terminal of the high-speed output special
adapter. If the SGB side of the high-speed output special adapter is used, the output waveform will be
that of the SGB terminal.
2. Setting of command pulse input method for servo amplifier (drive unit)
Set the following servo amplifier (drive unit) parameter so that the pulse train input method of the servo
amplifier (drive unit) matches the pulse output method of the PLC as shown in the following tables.
Parameter setting for each series of MELSERVO servo amplifier:
*1.
is for settings other than the command pulse output form.
→ For details, refer to the Servo amplifier manual.
Servo amplifier
(drive unit)
Pulse output method of main unit
Pulse output method of high-speed output
special adapter
Transistor output (sink output) Differential line driver
Pulse train + direction
Pulse train +
direction
Forward rotation pulse train,
reverse rotation pulse train
Command pulse input
method
"Pulse train + sign"
"Pulse train +
sign"
Forward rotation pulse train,
Reverse rotation pulse train
Logic of command pulse "Negative logic" "Negative logic" "Negative logic"
Series Parameter No.
Set value
Pulse train + direction
Negative logic
forward/reverse rotation pulse
train
Negative logic
MR-J3 13 0011 0010
MR-J2,MR-J2S 21 0011 0010
MR-C 7 011 010
MR-H 21
011
*1
010
*1
MR-J 7
1
*1
0
*1
Y0/2+
FX
3U
-2HSY-ADP
Y0/2-
SGA
Y4/6+
Y4/6-
Equivalent
to AM26C31
SGA
Forward rotation
pulse train
Reverse rotation
pulse train
SD
Plate
MR-J3
A servo
amplifier
NP 35
PP 10
PG 11
NG 36
Forward rotation pulse
train(Y000)
Forward rotation Reverse rotation
Reverse rotation pulse
train(Y004)
Image of output
ON/OFF operation
Output
waveform
ON
OFF
High
Low
High
Low
ON
OFF
High
Low
High
Low
Image of output
ON/OFF operation
Output
waveform
+
-
+
-