Mitsubishi Electric Melsec-F FX3GC Series User Manual page 120

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
3) High-speed output special adapter (set to "forward/reverse rotation pulse train")
a) Connection of PLC to servo amplifier
FX -2HSY-ADP
3U
Equivalent
to AM26C31
SGA
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.
Forward rotation pulse
train (Y000)
Image of output
ON/OFF operation
Output
waveform
Reverse rotation pulse
train (Y004)
Image of output
ON/OFF operation
Output
waveform
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.
Servo amplifier
(drive unit)
Command pulse input
method
Logic of command pulse
Parameter setting for each series of MELSERVO servo amplifier:
Series
MR-J4A
MR-J3A
MR-JNA
MR-J2A, MR-J2SA
MR-HA
MR-CA
MR-JA
*1. is for settings other than the command pulse output form.

B - 76
PLC User's Manual - Positioning Control Edition
Forward rotation
Y0/2+
Y0/2-
Y4/6+
Y4/6-
Reverse rotation
SGA
Forward rotation
ON
OFF
+ High
Low
High
-
Low
ON
OFF
+ High
Low
High
-
Low
Pulse output from main unit
Transistor output (sink output)
Pulse train + direction
"Pulse train + sign"
"Negative logic"
Parameter No.
13
13
13
21
21
7
7
4.6 Setting of Various Items on Servo Amplifier (Drive Unit) Side
MR-J3A servo
amplifier
pulse train
PP 10
PG 11
NP 35
NG 36
pulse train
SD
Plate
Reverse rotation
Pulse output from high-speed output special
Pulse train +
direction
"Pulse train +
sign"
"Negative logic"
Pulse train + direction
Negative logic
0211
0011
*1
11
0011
*1
011
011
*1
1
For details, refer to the Servo amplifier manual.
4 Before Programming
adapter
Differential line driver
Forward rotation pulse train,
reverse rotation pulse train
Forward rotation pulse train,
Reverse rotation pulse train
"Negative logic"
Set value
Forward/reverse rotation pulse
train
Negative logic
0210
0010
*1
10
0010
*1
010
010
*1
0