918
APPX
Appendix 9 Connection Example of Servo Amplifier
*1 Be sure to use the class-D grounding method (grounding resistance: 100 or less).
*2 Near-point signal (DOG)
Any input other than high-speed pulse input/output module can also be used.
*3 To ensure safety, use the forward rotation limit switch and the reverse rotation limit switch on both sides: the CPU module side and the
servo amplifier side.
Note that the limit switches on the CPU module side should be activated slightly earlier than the limit switches on the servo amplifier
side.
*4 To detect absolute positions, connect this line to the CPU module.
*5 I/O module are used in the connection example. Inputs built into the CPU module are available in place of I/O module.
*6 Set the command pulse input form (PA13) of the servo amplifier MR-J3A to "0010" (negative logic, forward rotation pulse train, reverse
rotation pulse train).
*7 Refer to Page 919 FX5UJ CPU module.
Absolute position detection
■FX5S CPU module
*1 Be sure to use the class-D grounding method (grounding resistance: 100 or less).
Reverse
rotation limit 2
(Servo amplifier side)
Reverse
rotation limit 1
(CPU module side)
Forward
rotation limit 1
(CPU module side)
Forward
rotation limit 2
(Servo amplifier side)
LSR
LSF
Servo motor
Reverse rotation Forward rotation
X0
24V
0V
S/S
N
L
COM3
Y13
Y14
Y15
X14
X15
X16
FX5S-30MT/ES
ABS(bit0)
ABS(bit1)
DOCOM
46
DICOM
20
SD
CN1
SON
15
ABSR 18
ABSM 17
ABSB0 22
ABST 25
ABSB1 23
Photocoupler
Photocoupler
100V to 240V AC
Plate
24 V DC
MR-J3
A series
servo amplifier
Class-D grounding
*1
Send data ready
Servo-ON
ABS transfer mode
ABS request
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