Advertisement
4. Power supply/input/output specifications and
examples of external wiring
For the details refer to the following manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3S
DESIGN
PRECAUTIONS
• Make sure to have the following safety circuits outside of the PLC to ensure
safe system operation even during external power supply problems or PLC
failure. Otherwise, malfunctions may cause serious accidents.
1) Most importantly, have the following: an emergency stop circuit, a
protection circuit, an interlock circuit for opposite movements (such as
normal vs. reverse rotation), and an interlock circuit (to prevent
damage to the equipment at the upper and lower positioning limits).
2) Note that when the PLC CPU detects an error, such as a watchdog
timer error, during self-diagnosis, all outputs are turned off. Also, when
an error that cannot be detected by the PLC CPU occurs in an input/
output control block, output control may be disabled.
External circuits and mechanisms should be designed to ensure safe
machinery operation in such a case.
3) If an overload of the 24 V DC service power supply occurs, the voltage
automatically drops, inputs in the PLC are disabled, and all outputs are
turned off. External circuits and mechanisms should be designed to
ensure safe machinery operation in such a case.
4) Note that when an error occurs in a relay or transistor output device,
the output could be held either on or off. For output signals that may
lead to serious accidents, external circuits and mechanisms should be
designed to ensure safe machinery operation in such a case.
DESIGN
PRECAUTIONS
• Do not bundle the control line together with or lay it close to the main
circuit or power line. As a guideline, lay the control line at least 100 mm
(3.94") or more away from the main circuit or power line.
Noise may cause malfunctions.
• Install module so that excessive force will not be applied to peripheral
device connectors.
Failure to do so may result in wire damage/breakage or PLC failure.
Notes
• Even if the AC power supply causes an instantaneous power failure for
less than 10 ms, the PLC can continue to operate.
• If a long-time power failure or an abnormal voltage drop occurs, the PLC
stops, and output is turned off. When the power supply is restored, it will
automatically restart (when the RUN input is on).
WIRING
PRECAUTIONS
• Make sure to cut off all phases of the power supply externally before
attempting installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
• The temperature rating of the cable should be 80°C or more.
WIRING
PRECAUTIONS
• Connect the AC power supply wiring to the dedicated terminals described
in this manual. If an AC power supply is connected to a DC input/output
terminal or DC power supply terminal, the PLC will burn out.
• Noise resistance may be lower when the L and N wires of an AC power
supply are not wired correctly. Please wire using the correct polarity.
• Do not wire vacant terminals externally. Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100 Ω or less) to the
2
grounding terminal on the main unit with a wire 2 mm
or thicker.
Do not use common grounding with heavy electrical systems (refer to
section 4.3).
• When drilling screw holes or wiring, make sure cutting or wire debris does
not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to properly wire to the main unit in accordance with the
following precautions.
Failure to do so may cause electric shock, equipment failures, a short-
circuit, wire breakage, malfunctions, or damage to the product.
- Make sure to properly wire to the main unit in accordance with the
rated voltage, current, and frequency of each terminal.
- The disposal size of the cable end should follow the dimensions
described in the manual.
- Tightening torque should follow the specifications in the manual.
- Tighten the screws using a Phillips-head screwdriver No.2 (shaft
diameter 6mm (0.24") or less). Make sure that the screwdriver does not
touch the partition part of the terminal block.
Notes
• Input/output wiring 50 to 100 m (164'1" to 328'1") long will cause almost
no problems of noise, but, generally, the wiring length should be less than
20 m (65'7") to ensure the safety.
4.1 Wiring
4.1.1
Cable end treatment and tightening torque
For the terminals of FX
series PLC, M3 screws are used.
3S
The electric wire ends should be treated as shown below.
Tighten the screws to a torque of 0.5 to 0.8 N•m.
Do not tighten terminal screws with a torque outside the above-mentioned
range. Failure to do so may cause equipment failures or malfunctions.
• When one wire is connected to one terminal
3.2 (0.13")
Terminal
Solderless
screw
terminal
6.2 mm (0.24")
or less
3.2 (0.13")
6.2 mm (0.24")
Terminal
or less
<Reference>
Terminal
Applicable
Pressure
Type No.
Certification
manufacturer
cable
bonding tool
FV1.25-B3A
AWG22 to 16
J.S.T. Mfg.
YA-1 (J.S.T.
UL Listed
Co., Ltd.
Mfg. Co., Ltd.)
FV2-MS3
AWG16 to 14
*1
• When two wires are connected to one terminal
3.2 (0.13")
Terminal
Solderless
6.2 mm (0.24")
screw
terminal
or less
6.3 mm (0.25")
or more
3.2 (0.13")
6.2 mm (0.24")
Terminal
or less
6.3 mm (0.25")
or more
<Reference>
Terminal
Applicable
Pressure
Type No.
Certification
manufacturer
cable
bonding tool
J.S.T. Mfg.
YA-1 (J.S.T.
FV1.25-B3A
AWG22 to 16 UL Listed
Co., Ltd.
Mfg. Co., Ltd.)
*1 To
adapt
the
LVD directive
(EN61010-2-201:2013)
of
directive, avoid the wiring with two wires to the built-in terminal, and take
an appropriate action such as adding an external terminal.
For the time of compliance with the LVD directive (EN61010-2-201:2013),
refer to FX
Series User's Manual - Hardware Edition.
3S
4.2 Power supply specifications and example of external
wiring
For details, refer to the following manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3S
4.2.1
Power supply specifications
Item
Specification
Supply voltage
100 to 240 V AC
Voltage fluctuation range
-15%, +10%
Rated frequency
50/60 Hz
Allowable instantaneous
Operation can be continued upon occurrence of
power failure time
instantaneous power failure for 10 ms or less.
Power fuse
250 V 1 A
15 A max. 5 ms or less/100 V AC
Rush current
28 A max. 5 ms or less/200 V AC
*1
21 W
Power consumption
24 V DC service power supply 400 mA
*1 This item shows values when all 24 V DC service power supplies are
used in the maximum configuration connectable to the main unit, and
includes the input current (5 or 7 mA per point).
4.2.2
Example of external wiring
100 to 240 V AC power is supplied to the main unit.
PL
Main unit
MC
Fuse
L
Class D
grounding
N
MC
Power supply for loads connected
to PLC output terminals
4.3 Grounding
Ground the PLC as stated below.
• Perform class D grounding. (Grounding resistance: 100 Ω or less)
• Ground the PLC independently if possible.
If it cannot be grounded independently, ground it jointly as shown below.
Other
Other
PLC
PLC
equipment
equipment
Independent grounding
Shared grounding
(Best condition)
(Good condition)
• Use ground wires thicker than AWG14 (2 mm
• Position the grounding point as close to the PLC as possible to decrease the
length of the ground wire.
4.4 Input specifications and external wiring
the EC
For details, refer to the following manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3S
4.4.1
Input specifications
Item
Number of input points
16 points
Input connecting type
Fixed terminal block (M3 screw)
Input form
Sink/Source
Input signal voltage
24 V DC +10%, -10%
X000 to X007
3.3 kΩ
Input impedance
X010 to X017
4.3 kΩ
X000 to X007
7 mA/24 V DC
Input signal current
X010 to X017
5 mA/24 V DC
X000 to X007
4.5 mA or more
ON input sensitivity
current
X010 to X017
3.5 mA or more
OFF input sensitivity current
1.5 mA or less
Input response time
Approx. 10 ms
No-voltage contact input
Sink input
NPN open collector transistor
Input signal form
(Input sensor form)
No-voltage contact input
Source input
PNP open collector transistor
Input circuit insulation
Photocoupler insulation
LED on panel lights when
Input operation display
photocoupler is driven.
4.4.2
Examples of input wiring
1. Sink input type
100 to 240 V AC
Fuse
L
Class D
Breaker
grounding
N
Power on
Emer-
100 to 240 V AC
gency
S/S
stop
MC
0V
24V
X000
X001
MC
4.4.3
Instructions for connecting input devices
As for the details of Instructions for connecting input devices, refer to the
following manual.
→ Refer to FX
DC
4.5 Relay output specifications and example of external
power
wiring
supply
For details, refer to the following manual.
→ Refer to FX
DC
AC
4.5.1
Relay output specifications
Item
Number of output points
Output connecting type
Output form
External power supply
Other
PLC
equipment
Resistance load
Max. load
Common grounding
Inductive load
(Not allowed)
2
Min. load
).
Open circuit leakage current
OFF→ON
Response time
ON→OFF
Output circuit insulation
Output operation display
Specification
*1 250 V AC or less when the unit does not comply with CE, UL or cUL
standards.
*2 The total load current of resistance loads per common terminal should be
the following value.
- 1 output point/common terminal: 2 A or less
- 4 output points/common terminal: 8 A or less
As for the number of outputs per common terminal, refer to "Chapter 5
interpretation of partition" and the following manual.
→ Refer to FX
*3 UL and cUL standards approved at 120 and 240 V AC.
4.5.2
Life of relay output contact
As for the details of life of relay output contact, refer to the following manual.
→ Refer to FX
4.5.3
Example of relay output wiring
Load
AC power
Fuse
supply
4.5.4
Cautions in external wiring
As for the details of cautions in external wiring, refer to the following manual.
→ Refer to FX
2. Source input type
Fuse
L
Class D
grounding
N
100 to 240 V AC
S/S
0V
24V
X000
X001
3-wire type
3-wire type
sensor
sensor
Series User's Manual - Hardware Edition.
3S
Series User's Manual - Hardware Edition.
3S
Specification
14 points
Fixed terminal block (M3 screw)
Relay
30 V DC or less
*1
240 V AC or less
*2
2 A/point
*3
80 VA
5 V DC, 2 mA (reference value)
-
Approx. 10 ms
Mechanical insulation
LED on panel lights when power is
applied to relay coil.
3S
Series User's Manual - Hardware Edition.
Series User's Manual - Hardware Edition.
3S
Y000
COM0
Main unit
Series User's Manual - Hardware Edition.
3S
Advertisement
