Specifications - Mitsubishi Electric MELSEC-F FX3U User Manual

WIRING
PRECAUTIONS
 Make sure to observe the following precautions in order to prevent any
damage to the machinery or accidents due to abnormal data written to the
PLC under the influence of noise:
1) Do not bundle the main circuit line together with or lay it close to the main
circuit, high-voltage line or load line. Otherwise, noise disturbance and/or
surge induction are likely to take place. As a guideline, lay the control line at
least 100mm (3.94") or more away from the main circuit or high-voltage lines.
2) Ground the shield wire or shield of the shielded cable at two points; on the
PLC and the device on other end. However, do not use common grounding
with heavy electrical systems.
3.1 Connection to input/output connector
The input and output connectors conform to the MIL-C-83503.
For the input and output connectors pin assignment, refer to section 1.4.
1) Compliant connectors (commercially available connectors)
Use a 40-pin (1-key) socket connector conforming to MIL-C-83503.
Confirm in advance that the connectors do not interfere with other parts
including connector covers.
2) Connectors for user-made input/output cables (available from Mitsubishi)
Users should provide electric wires and a pressure bonding tool.
Applicable electric wire
Model name and composition of
(UL-1061 are recommended)
input/output connector
and tool
Electric
Our model Details of part Pressure bonding tool
wire
name (made by DDK Ltd.) (made by DDK Ltd.)
size
FX-I/O-CON2-S Housing:HU-400S2-001
AWG22
for bulk wire Solderless contact: 357J-5538
2
(0.3mm )
(2-piece set) HU-411S
FX-I/O-CON2-SA Housing:HU-400S2-001
AWG20
for bulk wire Solderless contact: 357J-13963
2
(0.5mm )
(2-piece set) HU-411SA
3.2 Wiring
Note:
Make sure to properly wire in accordance with the encoder output specifications.
Incorrect wiring may cause accidents or damage to the product.
3.2.1 NPN output encoders
FX
3U
FX *1 Encoder (NPN)
3UC
24V DC
Class D
+24V
FX -2HC
3U
3.3k
0V
*1
A24+
1.5k
Shielded
A12+
Twisted-Pair
0.2k
A 5+
0.12k
Phase
A -
A
*2
Class D Class D
Shielded
1.65k
*1
*3
XD24
Twisted-Pair
DISABLE
0.47k
XD 5
0.22k
COMD
3.3k
*1
P24+
Class D
1.5k
P12+
0.2k
Phase
P 5+
Z
0.12k
Shielded *3
P - PRESET
Twisted-Pair
Class D Class D
*1. Drive power supply of the encoder.
Use either 24V DC, 12V DC, or 5V DC according to the encoder type.
When connecting the A phase, the B phase, and the Z phase to the
FX -2HC, connect to the power supply terminal.
3U
When using 24V DC for PRESET or DISABLE signals, connect to the 24V
DC (P24+, XD24) terminal
*2. Wiring of the B phase is the same as that of the A phase.
*3. This wiring is unnecessary when not using the PRESET function or the
DISABLE function.
3.2.2 PNP output encoders
*1
FX 24V DC
3U
FX
3UC
Class D
Shielded
FX -2HC
3U
Twisted-Pair
3.3k
*1
A24+
1.5k
A12+
0.2k
A 5+
0.12k Class D Class D
A -
*2
Shielded
Twisted-Pair
DISABLE
1.65k
*1
XD24
0.47k
XD 5
0.22k
COMD
Class D
3.3k
*1
P24+
1.5k
P12+
0.2k
Shielded
P 5+
Twisted-Pair
0.12k Class D Class D
P -
*1. Drive power supply of the encoder.
Use either 24V DC, 12V DC, or 5V DC according to the encoder type.
When connecting the A phase, the B phase, and the Z phase to the
FX -2HC, connect to the power supply terminal.
3U
When using 24V DC for PRESET or DISABLE signals, connect to the 24V
DC (P24+, XD24) terminal.
*2. Wiring of the B phase is the same as that of the A phase.
*3. This wiring is unnecessary when not using the PRESET function or the
DISABLE function.
3.2.3 Differential-Line-Driver output encoders
When applying the Differential-Line-Driver encoder (AM26C31 or equivalent) to the
FX -2HC, connect the encoder output with the 5V DC terminal as shown in the figure
3U
below.
5V DC
FX
3U
*1
FX
3UC
Class D
FX -2HC
3U
0.2k
A 5+
0.12k
A -
*1
0.47k
*2
XD 5
0.22k
COMD
DISABLE
0.2k
P 5+
0.12k
P -
PRESET
*1. Wiring of the B phase is the same as that of the A phase.
*2. This wiring is unnecessary when not using the PRESET function or the
DISABLE function.
3.2.4 YH1, YH2 output wiring [Sink wiring]
FX -2HC
3U
YH1+
YH1-
YH2+
YH2-
Fuse Output load driving
power, 5 - 24V DC
Caution
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.
3.2.5 YH1, YH2 output wiring [Source wiring]
Encoder (PNP)
FX 3U -2HC
YH1+
+24V
*1
YH1-
0V
YH2+
Phase
A
YH2-
Caution
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.
*2
3.3 Grounding
Grounding should be performed as stated below.
*3
 The grounding resistance should be 100 or less.
 Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding"
of the following figure.
For details, refer to the FX
For details, refer to the FX
Phase
For details, refer to the MELSEC iQ-F FX5U User's Manual (Hardware).
Z
For details, refer to the MELSEC iQ-F FX5UC User's Manual (Hardware).
*3 Another
PRESET
PLC
equipment
Independent grounding
Best condition
 The grounding wire size should be AWG 22-20 (0.3-0.5 mm
 The grounding point should be close to the PLC, and all grounding wires
should be as short as possible.

4. Specifications

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.
Encoder
reverse rotation), and an interlock circuit (to prevent damage to the
equipment at the upper and lower positioning limits).
+5V
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
0V
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
LA
machinery operation in such a case.
3) Note that when an error occurs in a relay, triac or transistor output device, the
LAR
output could be held either on or off.
For output signals that may lead to serious accidents, external circuits and
*1
mechanisms should be designed to ensure safe machinery operation in such
a case.
*2 DESIGN
PRECAUTIONS
LZ
 Do not bundle the control line together with or lay it close to the main circuit or
LZR power line. As a guideline, lay the control line at least 100mm (3.94") or more
*2
away from the main circuit or power line.
Noise may cause malfunctions.
 Install module so that excessive force will not be applied to I/O connectors.
Failure to do so may result in wire damage/breakage or PLC failure.
4.1 General Specifications
The general specifications are equivalent to the PLC main unit.
(For general specifications, refer to the manual of the PLC main unit.)
Caution
When a dielectric withstand test of this product is performed, ground all terminals of
this product and the PLC unit.
4.2 Power Supply Specifications
Item
5V DC, 245mA (Internal power supply from main unit
Units driving power
or extension power supply unit)
Allowable instantaneous Operation can be continued upon occurrence of
power failure time instantaneous power failure for 1 ms or less.
4.3 Performance Specifications
Item
Signal
Output load
driving power, level
5 - 24V DC (Selected
by terminal
Fuse
connec-
tion)
MAX.
frequency
Series User's Manual - Hardware Edition.
3U
Input
Series User's Manual - Hardware Edition.
3UC
signal
Another Another
PLC PLC
equipment equipment
Shared grounding Common grounding
Good condition Not allowed
2
).
Pulse
shape
Format
Count-
ing spec-
ification
Range
Compari-
son Type
Types of
outputs
Output
signal
Output
capacity
I/O occupation
4.4 Applicable PLC
Model name
FX Series PLC
3U
FX Series PLC
3UC
*2
FX5U PLC
Specifications
*2
FX5UC PLC
*1 An FX 2NC
2HC with the FX
*2 An FX5-CNV-BUS or FX5-CNV-BUSC is necessary to connect the FX
2HC with the FX5U/FX5UC PLC.
*3 The version number can be checked by reading the last three digits of
device D8001/D8101.
Specification
[A24+],[B24+], 24V DC10%,
[P24+] 8mA or less
Phase A,
[A12+],[B12+], 12V DC10%,
Phase B,
[P12+] 8mA or less
PRESET
[A5+],[B5+], 3.0V to 5.5V DC,
[P5+] 12.5mA or less
10.8V to 26.4V DC,
[XD24]
15mA or less
DISABLE
5V DC10%,
[XD5]
8mA or less
1 input
1 - p h a s e
input
2 input 200kHz
1 edge count
2 - p h a s e
2 edge count 100kHz
input
4 edge count 50kHz
t1 t1
t2 t3
t4 t4
t1(ON/OFF pulse): 1.5s or more (at 200kHz)
t2(Phase difference between A and B):
0.75s or more (at 200kHz)
t3(Overlap time): 0.7s or more (at 200kHz)
t4(Rise/fall time): 0.75s or less
PRESET(Z phase) input signal width:
ON width 1.5s or more,
OFF width 30s or more
DISABLE (count prohibit) input signal width:
ON width 100s or more,
OFF width 100s or more
Automatic UP/DOWN
However, when on 1-phase 1-input mode, UP/
DOWN is determined by the following.
 Hardware UP/DOWN: Up/down count is decided
by OFF/ON of the A-phase input terminal.
 Software UP/DOWN: Up/down count is decided
by the current value (K0/K1) of BFM #1, #41.
When 32-bit is specified:
-2,147,483,648 to +2,147,483,647
When 16-bit is specified: 0 to 65,535
(upper limit is set up by BFM #3, #2, #43, #42.)
When the present value and the comparison set
value of the counter are equal, the comparison
output is set (ON) within 30 ms and is cleared (OFF)
within 100 ms by the reset command.
YH1+: transistor output for
YH1+,
YH1 output
YH2+
YH1-: transistor output for
YH1 output
YH1-,
YH2+: transistor output for
YH2-
YH2 output
YH2-: transistor output for YH2 output
5V ~ 24V DC, 0.5A
8 points (can be either inputs or outputs)
Applicability
*3
Ver. 2.20 and later
*1 *3
Ver. 2.20 and later
From first production
From first production
-CNV-IF or FX 3UC -1PS-5V is necessary to connect the FX 3U -
3UC PLC.
-
3U