Mitsubishi Electric FX3UC-16MT/DSS Hardware Manual page 6

3.3.2 Handling of input terminal
1) FX -MT/D, FX -16MR/D-T, FX -EX(-T)
3UC 3UC 2NC
Inputs turn ON when the input terminal and COM terminal are
electrically connected with a no-voltage contact or NPN open
collector transistor
2) FX -MT/DSS, FX -16MR/DS-T, FX -EX(-T)-DS
3UC 3UC 2NC
• sink input
Inputs turn ON when the 24 V DC + terminal and COM
terminal or COM terminal are connected, and the input terminal
-
and 24 V DC terminal are electrically connected with a no-
voltage contact or NPN open collector transistor.
• source input
-
Inputs turn ON when the 24 V DC terminal and COM
terminal or COM terminal are connected, and the input terminal
and 24 V DC + terminal are electrically connected with a no-
voltage contact or PNP open collector transistor.
Where  indicates:0 to 2
3.3.3 Example of input wiring
1. Examples of input wiring (FX -MT/D, FX -16MR/D-T)
3UC 3UC
Breaker, Circuit protector,
Fuse, etc.
24 V DC
Fuse
FX 3UC -
MT/D
FX3UC-
16MR/D-T
Class D
grounding
COM
COM
X000
Three
X001
wire
sensor
X002
NPN
FX -
2NC
EX(-T)
COM
COM
X  0
* 1) The grounding resistance should be 100 Ω or less.
(
2. Examples of sink input wiring (FX
3UC
FX -16MR/DS-T)
3UC
Breaker, Circuit protector,
Fuse, etc.
24 V DC
Fuse
FX -
3UC
MT/DSS
FX -
3UC
16MR/DS-T
*
( 2 )
COM0
*
( 2 )
COM0
X000
X001
X002
FX -
2NC
EX(-T)-DS COM0
COM0
X  0
* 1) The grounding resistance should be 100 Ω or less.
(
*
( 2) In FX -64MT/DSS or FX -96MT/DSS units, the COM0,
3UC 3UC
COM1 and COM2 terminals are not connected internally. Wire
the COM0, COM1 and COM2 terminals respectively.
*
( 1)
3. Examples of source input wiring (FX
FX 3UC -16MR/DS-T)
Breaker, Circuit protector,
Fuse, etc.
24 V DC
FX -
3UC
MT/DSS
FX -
3UC
16MR/DS-T
*
( 2)
COM0
*
( 2)
COM0
X000
X001
X002
FX -
2NC
EX(-T)-DS COM0
COM0
X  0
*
( 1) The grounding resistance should be 100 Ω or less.
*
( 2) In FX -64MT/DSS or FX -96MT/DSS units, the COM0,
3UC 3UC
COM1 and COM2 terminals are not connected internally. Wire
the COM0, COM1 and COM2 terminals respectively.
-MT/DSS, 3.4 Output specifications and example of external
wiring
→ For more details, refer to the FX
3.4.1 Transistor output specifications
Item
Class D
grounding ( * 1)
Number of output points
Three
wire Output connecting type
sensor
FX
NPN 3UC
D
FX
2NC
Output form
FX
3UC
DSS
FX
2NC
-DSS
External power supply
Main
Resist
units
ance
-MT/DSS,
3UC
load
FX
2NC
(-DSS)
Max.
load
Fuse
Main
Induct
units
ive
load
FX
2NC
(-DSS)
Class D Open circuit leakage current
*
grounding ( 1)
Main
units
Three
OFF→
wire
ON
sensor
NPN
FX 2NC
Resp
(-DSS)
onse
time
Main
units
ON→
OFF
FX
2NC
(-DSS)
Output circuit insulation
Output operation display
( * 1) When the two COM terminal are connected outside the
PLC, resistance load is 1.6 A or less.
*
( 2) When using an instruction related to pulse train output or
Series User's Manual -
3UC
*
( 3) The transistor OFF time is longer under lighter loads.
Hardware Edition.
Output specification
(Transistor)
3.4.2
FX -16MT/D(SS) 8 points
3UC
FX -32MT/D(SS) 16 points Output terminal:
3UC
The main unit and FX
FX -64MT/D(SS) 32 points
3UC
transistor output points per common.
FX -96MT/D(SS) 48 points Two COM or +V terminals connected to each other inside the
3UC
PLC are provided for outputs.
FX -16EYT(-DSS) 16 points
2NC
Connect two COM or +V terminals outside the PLC so that the
FX -32EYT(-DSS) 32 points load applied to each COM or +V terminal is smaller.
2NC
Where  indicates: 1 to 3
connector
Where  indicates: 0 to 2
-MT/
Output current
Sink
-EYT The ON voltage of the output transistor is approx. 1.5 V. When
driving a semiconductor element, carefully check the input voltage
-MT/
characteristics of the applied element.
Source
3.4.3
-EYT
1. Examples of sink output wiring
5-30V DC
Y000 to
0.3 A/point
Make sure that the
Y003
total load current
Y004 or
of 8 resistance
0.1 A/point
more
load points is 0.8 A
( * 1) or less.
-EYT
0.1 A/point
Y000 to 7.2 W/point Make sure that the
Y003 (24 V DC) total load of 16
inductive load
Y004 or 2.4 W/point
points is 38.4 W/
more (24 V DC)
24 V DC or less.
-EYT
2. Examples of source output wiring
2.4 W/point (24 V DC)
FX
0.1 mA or less/30 V DC
FX
5 μs or less/10 mA or more
Y000 to
*
(5-24 V DC) ( 2)
Y002
0.2 ms or less/100 mA or more
Y003 or
*
(at 24 V DC) ( 3)
more
-EYT 0.2 ms or less/100 mA or more
(at 24 V DC)
5 μs or less/10 mA or more
Y000 to
(5-24 V DC) ( * 2)
Y002
0.2 ms or less/100 mA or more
Y003 or
*
(at 24 V DC) ( 3)
more
-EYT 0.2 ms or less/100 mA or more
(at 24 V DC)
Photocoupler insulation
LED on panel turns ON when
photocoupler is driven.
positioning, make sure to set the load current to 10 to 100 mA
(5-24 V DC).
For example, under a load of 24 V DC 40 mA, the response
time is approx. 0.3 ms. When response performance is
required under light loads, provide a dummy resistor to
increase the load current.
Handling of transistor output circuit
input/output extension block have 16
2NC
Example of transistor output wiring
FX -MT/D
3UC
FX -EYT
2NC
COM1 COM1 Y000 Y001 Y002
Load Load Load
Emergency
stop
24 V
DC
Fuse
-MT/DSS
3UC
-EYT-DSS
2NC
+V0 +V0 Y000 Y001 Y002
Emergency Load Load Load
stop
24 V
Fuse
DC