Transistor Output Specifications - Mitsubishi Electric FX3G-14M series Hardware Manual

3.5.4 Cautions in external wiring
As for the details of Instructions for connecting input devices, refer to
the following manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3G
Protection circuit for load short-circuiting
When a load connected to the output terminal short-circuits, the
printed circuit board may be burnt out. Fit a protective fuse on the
output circuit.
Protection circuit of contact when inductive load is used
An internal protection circuit for the relays is not provided for the
relay output circuit in this product. It is recommended to use
inductive loads with built-in protection circuits. When using loads
without built-in protection circuits, insert an external contact
protection circuit, etc. to reduce noise and extend the product life.
1) DC circuit
Connect a diode in parallel with the load.
Use a diode (for commutation) having the following
specifications.
Item Standard
Reverse voltage 5 to 10 times the load voltage
Forward current Load current or more
2) AC circuit
Connect the surge absorber (combined CR components such as
a surge killer and spark killer, etc.) parallel to the load.
Select the rated voltage of the surge absorber suitable to the
output used. Refer to the table below for other specifications.
Item Standard
Electrostatic capacity Approx. 0.1μF
Resistance value Approx. 100 to 200Ω
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.
Common mode
Use output contacts of the PLC in the common mode.
3.6 Transistor output specifications and example of
external wiring
As for the details of the transistor output specifications and external
wiring, refer to the following manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3G
3.6.1

Transistor output specifications

Item Specification
6 points (8 points)(
FX -14MT
3G
FX -8EYT 8 points
2N
10 points (16 points)(
FX -24MT
3G
Number of
output
FX -40MT,
3G
points
FX -32ET,
2N 16 points
FX 2N -16EYT
FX -60MT,
3G
24 points
FX -48ET
2N
Refer to FX Series
3G
Output connecting type User's Manual
- Hardware Edition
FX -MT/ES(-A),
3G
FX -MT/DS,
3G
FX -ET,
2N
Transistor(Sink)
FX 2N -48ET-D,
FX -EYT,
2N
Output
FX -8EYT-H
2N
form
FX -MT/SS
3G
FX -ET-ESS/UL,
2N
Transistor(Source)
FX 2N -48ET-DSS,
FX -EYT-ESS/UL
2N
External power supply 5-30V DC
FX -MT,
3G
FX -ET,
2N
FX -ET-,
2N
*
0.5A/point( 2)
FX -EYT,
2N
Resistance
FX -EYT-ESS/
2N
load
UL
*
1A/point( 3)
FX -8EYT-H
2N
*
0.3A/point( 2)
FX -16EYT-C
2N
Max.
load
FX -MT,
3G
FX -ET,
2N
FX -ET-,
2N
*
12W/24V DC( 4)
FX -EYT,
2N
Inductive
FX -EYT-ESS/
2N
load
UL
*
24W/24V DC( 3)
FX -8EYT-H
2N
*
7.2W/24V DC( 4)
FX -16EYT-C
2N
Min. load −
Open circuit leakage current 0.1mA or less/30V DC
ON voltage 1.5V or less
Item
Y000,
FX -
3G
Y001
14MT,
FX -
3G
Y002 or
24MT
more
Y000 to
OFF
FX -
3G
→ Y002
40MT,
ON
FX -
3G
Y003 or
60MT
more
*
1)
Input/output
extension
units/blocks
Response
*
1)
time
Y000,
FX -
3G
Y001
14MT,
FX 3G -
Y002 or
24MT
more
Y000 to
ON
FX -
3G
→ Y002
40MT,
OFF
FX -
3G
Y003 or
60MT
more
Input/output
extension
units/blocks
Circuit insulation
Display of output operation
*
( 1) Each value inside ( ) indicates the number of occupied points.
*
( 2) The total load current of resistance loads per common
terminal should be the following value or less.
- 4 output points/common terminal : 0.8A
As for the number of outputs per common terminal, refer to
"Chapter 4 interpretation of partition" and the following manual.
→ Refer to FX Series User's Manual - Hardware Edition.
3G
*
( 3) The response time is as follows in the FX
- OFF→ON : 0.2ms or less/1A
- ON→OFF : 0.4ms or less/1A
*
( 4) The total of inductive loads per common terminal should be
the following value or less.
- 1 output point/common terminal : 12W/24V DC
- 4 output points/common terminal : 19.2W/24V DC
As for the number of outputs per common terminal, refer to
"Chapter 4 interpretation of partition" and the following manual.
→ Refer to FX Series User's Manual - Hardware Edition.
3G
3.6.2 External Wiring of Transistor Output
Specification
5μs or less/10mA or more 1. External Wiring of Sink Output Type
(5-24V DC)
Load
0.2ms or less/200mA
or more (at 24V DC)
DC power
5μs or less/10mA or more
Fuse
supply
(5-24V DC)
0.2ms or less/200mA
or more (at 24V DC)
Load
0.2ms or less/200mA
or more (at 24V DC)
DC power
Fuse
supply
5μs or less/10mA or more
(5-24V DC)
0.2ms or less/200mA
or more (at 24V DC)
2. External Wiring of Source Output Type
5μs or less/10mA or more
(5-24V DC)
Load
0.2ms or less/200mA
or more (at 24V DC)
DC power
Fuse
0.2ms or less/200mA supply
or more (at 24V DC)
Photocoupler insulation
Load
LED on panel lights when
photocoupler is driven.
DC power
Fuse
supply
3.6.3 Cautions in external wiring
As for the details of Instructions for connecting input devices, refer to
the following manual.
2N -8EYT-H
→ Refer to FX
3G
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.
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.
Item
Reverse voltage
Forward current
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.
Y0
COM0
Y1
COM1
PLC
Y0
+V0
Y1
+V1
PLC
Series User's Manual - Hardware Edition.
Guide
5 to 10 times of the load voltage
Load current or more