Mitsubishi FX3U Series Hardware Manual

3.6.2 Cautions in external wiring
Protection circuit for load short-circuits
A short-circuit at a load connected to an output terminal could cause
burnout at the output element or the PCB. To prevent this, a
protection fuse should be inserted at the output.
Use a load power supply capacity that is at least 2 times larger than
the total rated fuse capacity.
1. External Wiring of Sink Output Type
2. External Wiring of Source Output Type
Contact protection circuit for inductive loads
When an inductive load is connected, connect a diode (for
commutation) in parallel with the load as necessary.
The diode (for commutation) must comply with the following
specifications.
1. External Wiring of Sink Output Type
2. External Wiring of Source Output Type
Interlock
Loads, such as contactors for normal and reverse rotations, that
must not be turned on simultaneously should have an interlock in the
PLC program and an external interlock as shown below.
1. External Wiring of Sink Output Type
2.External Wiring of Source Output Type
Item Guide
Reverse voltage 5 to 10 times of the load voltage
Forward current Load current or more
PLC
Load
Fuse
COM
Y
PLC
Load
Fuse
Y
+V
PLC
Inductive load
Fuse
Y
COM
Diode (for
commutation)
PLC
Inductive load
Fuse
Diode (for
commutation)
Y
+V
+
-
Limit of normal
rotation
Interlock
Limit of reverse
rotation
PLC output
element
-
Limit of normal
rotation
Interlock
Limit of reverse
rotation
PLC output
element
+
4. Terminal block layouts
FX 3U -128M /ES(-A)
*1
FX 3U -16MT/ S(-A)FX 3U -16MR/ S(-A)
FX
3U -32M / S(-A)
FX 3U -48M / S(-A)
FX 3U -64M / S(-A)
-DC power type
DC power terminal block differs from AC
power terminal block as follows.
X7X5X324VNL
X6X4X2X00VS/S
Y5Y3Y2Y0 Y6Y1 Y4 Y7
Y5Y3Y2Y0 Y6Y1 Y4 Y7
X1
X7X5X3X124VNL
X6X4X2X00VS/S
Y7Y5Y1
Y10Y6Y4Y2
Y3 Y11
Y12
Y13
X17X15X13X11
X16X14X12X10
COM1
Y0
COM2 COM3 COM4
Y14
Y15
Y16
Y17
X7X5X3X124VNL
X6X4X2X00VS/S
Y7Y5Y1
Y10Y6Y4Y2
Y3 Y11
Y12
Y13
X17X15X13X11
X16X14X12X10
COM1
Y0
COM2 COM3 COM4
Y14
Y15
Y16
Y17
X27X25X23X21
X26X24X22X20
Y20
Y21
Y22
Y23
Y24
Y25
Y26
Y27
COM5
X7X5X3X124VNL
X6X4X2X00VS/S
Y7Y5Y1
Y10Y6Y4Y2
Y3 Y11
Y12
Y13
X17X15X13X11
X16X14X12X10
COM1
Y0
COM2 COM3 COM4
Y14
Y15
Y16
Y17
X27X25X23X21
X26X24X22X20
Y20
Y21
Y22
Y23
Y24
Y25
Y26
Y27
COM6
24V
0V
X31
X30
X33
X32
X35
X34
X37
X36
Y30
Y31
Y32
Y33
Y34
Y35
Y36
Y37
COM5
X7X5X3X124VNL
X6X4X2X00VS/S
Y7Y5Y1
Y10Y6Y4Y2
Y3 Y11
Y12
Y13
X17
X15X13X11
X16X14X12X10
COM1
Y0
COM2 COM3 COM4
Y14
Y15
Y16
Y17
X27X25X23X21
X26X24X22X20
Y20
Y21
Y22
Y23
Y24
Y25
Y26
24V
0V
X31
X30
X33
X32
X35
X34
X37
X36
COM5
X41
X40
X43
X42
X45
X44
X47
X46
Y27
COM7
Y30
Y31
Y32
Y33
Y34
Y35
Y36
Y37
COM6
Y40
Y41
Y42
Y43
Y44
Y45
Y46
Y47
X7X5X3X124VNL
X6X4X2X00VS/S
Y6Y1
Y12Y7Y5Y2
Y3 Y13
COM4
Y14
X41
X15X13X11
X16X14X12X10
COM1
Y0
Y4 Y16
Y17
COM5
Y20
Y21
X53X51X47X45
X52X50X46X44
Y24
Y25
Y26
Y27
COM6
Y30
Y31
24V
0V
X57
X56
X61
X60
X63
X62
X65
X64
Y23
X71
X70
X73
X72
X75
X74
X77
X76
Y52 Y67
Y57
COM9
Y60
Y61
Y62
Y63
Y64
Y65Y56
COM10
Y70
Y71
Y72
Y73
Y74
Y75
Y76
X26X24X22X20
X23X21X17 X25
X40X36X34X32X30
X37X35X33X31X27 X43
X42
X55
X54
X67
X66
Y33 Y35 Y37 Y40 Y42
Y32 Y34 Y36
COM7
Y41
COM2
Y10
Y11
COM3
Y15 Y22
Y43 Y45 Y47 Y50
Y44 Y46
COM8
Y51 Y53
Y54
Y55 Y66 Y77
X7X5X324VNL
X6X4X2X00VS/S
Y5Y3Y2Y0 Y6Y1 Y4 Y7
COM5COM3COM2COM0 COM6COM1 COM4 COM7
X1
FX 3U -80M / S(-A)
*1 FX 3U -128 M /ES(-A) does not have DC power supply.
NL 24V
0VS/S
(24V)
(0V)S/S
AC Power Type DC Power Type

Mitsubishi FX3U Series Specifications

General

Brand	Mitsubishi
Model	FX3U Series
Category	Controller
Language	English