Mitsubishi MELSEC-F FX3U-2HC User Manual

JY997D36701A

Safety Precaution

(Read these precautions before use.)

This manual classifies the safety precautions into two categories:

and .

Depending on the circumstances, procedures indicated by may also cause severe injury. It is important to follow all precautions for personal safety.

Associated Manuals

How to obtain manuals

For product manuals or documents, consult with the Mitsubishi Electric dealer from who you purchased your product.

Certification of UL, cUL standards

The following product has UL and cUL certification.

UL, cUL File Number:E95239 Models: MELSEC FX3U series manufactured

from December 1st, 2009 FX3U-2HC

Indicates that incorrect handling may cause hazardous conditions, resulting in death or severe injury.

Indicates that incorrect handling may cause hazardous conditions, resulting in medium or slight personal injury or physical damage.

Manual name Manual No. Description

FX3U Series User’s Manual

- Hardware Edition

JY997D16501

MODEL CODE:

09R516

Explains the FX3U Series PLC specifications for I/O, wiring, installation, and maintenance.

3UC

Series

User’s Manual

- Hardware Edition

JY997D28701

MODEL CODE:

09R519

Explains the FX

3UC

Series PLC specifications for I/O, wiring, installation, and maintenance.

FX3G/FX3U/FX3UC Series Programming Manual

- Basic & Applied Instruction Edition

JY997D16601

MODEL CODE:

09R517

Describes FX3G/FX3U/FX

3UC

Series PLC programming for basic/ applied instructions and devices.

Compliance with EC directive (CE Marking)

This note does not guarantee that an entire mechanical module produced in accordance with the contents of this note will comply with the following standards. Compliance to EMC directive and LVD directive for the entire mechanical module should be checked by the user / manufacturer. For more details please contact the local Mitsubishi Electric sales site.

Requirement for Compliance with EMC directive

The following products have shown compliance through direct testing (of the identified standards below) and design analysis (through the creation of a technical construction file) to the European Directive for Electromagnetic Compatibility (2004/108/EC) when used as directed by the appropriate documentation.

Attention

• This product is designed for use in industrial applications.

• Manufactured by:

Mitsubishi Electric Corporation 2-7-3 Marunouchi, Chiyoda-ku, Tokyo, 100-8310 Japan

• Manufactured at: Mitsubishi Electric Corporation Himeji Works 840 Chiyoda-machi, Himeji, Hyogo, 670-8677 Japan

• Authorized Representative in the European Community: Mitsubishi Electric Europe B.V. Gothaer Str. 8, 40880 Ratingen, Germany

Type: Programmable Controller (Open Type Equipment) Models: MELSEC FX3U series manufactured

from December 1st, 2009 FX3U-2HC

Caution for EC Directive

• Installation in Enclosure Programmable logic controllers are open-type devices that must be installed and used within conductive control cabinets. Please use the programmable logic controller while installed within a conductive shielded control cabinet. Please secure the cabinet door to the control cabinet (for conduct ion). Installation within a control cabinet greatly affects the safety of the system and aids in shielding noise from the programmable logic controller.

1. Outline

1.1 Outline

The hardware high-speed counter block is a 2-channel high-speed counter. It is a special function block for the FX3U and FX

3UC

series PLC.

1.2 Major Features of the FX3U-2HC

• Differential-Line-Driver (AM26C31 or equivalent) and open collector output encoders are available for the FX3U-2HC.

• The FX3U-2HC has two outputs per channel. When the counter value coincides with an output compare value, the appropriate output is set ON. The output transistors are individually isolated to allow either sink or source connection methods.

• Various counter modes, such as 1-phase or 2-phase, 16-bit or 32-bit modes, can be selected using commands in the sequence program. Allow the FX3U-2HC unit to run only after setting these mode parameters.

1.3 Incorporated Items

Verify that the following product and items are included in the package:

Standard Remark

EN61131-2:2003 Programmable controllers

- Equipment requirements

and tests

Compliance with all relevant aspects of the standard. EMI

• Radiated Emissions

• Conducted Emissions EMS

• Radiated electromagnetic field

• Fast Transient burst

• Electrostatic discharge

• High-energy surge

• Voltage drops and interruptions

• Conducted RF

• Power frequency magnetic field

Included Items

FX3U-2HC 1 Unit

Special unit/block No. label 1 Sheet

Dust proof protection sheet 1 Sheet

Manuals [Japanese version] 1 manual

Manuals [English version] (This manual) 1 manual

1.4 External Dimensions, Part Names, and Terminal Layout

Weigh: 0.2kg (0.44lbs)

No. Name

[1]

Direct mounting hole: 2 holes of 4.5 (0.18") (mounting screw: M4 screw) Used when attaching FX3U-2HC directly.

[2]

Extension cable (PLC side) Used to connect this special function block to the FX3U/FX

3UC

main unit or an

extension block.

[3] CH1 connector

[4] CH2 connector

[5]

Status LED (the upper side: CH1, the lower side: CH2)

POWER (Green)

Power LED

ON when the 5V power supply is normally supplied from the PLC.

UP (Red) Up count LED The respective LED is ON accordin g

to up/down count direction of the counter.

DOWN (Red) Down count LED

A (Red)

A phase input LED

The respective LED is ON (flicker) according to ON/OFF of A and B input.

B (Red)

B phase input LED

DIS (Red) DISABLE input LED Th e r es pe ct iv e L ED is ON /O FF

according to ON/OFF of PRESET and DISABLE input.

PRE (Red) PRESET input LED

YH1 (Red) YH1 output LED Th e r es pe cti ve L ED is O N/ OFF

according to status of YH1 and YH2 output.

YH2 (Red) YH2 output LED

[6] Top cover

[7]

Extension connector (Extension side) Used to connect a FX3U extension block to the right of this special function block. Remove top cover for connecting.

[8] DIN rail mounting hook

[9] DIN rail mounting groove (DIN rail: DIN46277, 35mm (1.38") width)

87(3.43")

9(0.36")

[1]

[5]

55(2.17")

[2]

[3] [4]

80(3.15")(mounting hole pitch)

[9]

[8]

90(3.55")

4(0.16")

Without top cover

[5]

[6]

[5]

2-Ø4.5 mounting holes

[7]

CH2

A24+

A5+

B24+

B5+

P24+

P5+

A12+

A-

B12+

B-

P12+

P-

XD24

YH1+

YH2+

XD5

COMD

YH1-

YH2-

Notch

CH1

A24+

A5+

B24+

B5+

P24+

P5+

A12+

A-

B12+

B-

P12+

P-

XD24

YH1+

YH2+

XD5

COMD

YH1-

YH2-

YH1 output

YH2 output

Notch

-2HC connector arrange ment

Phase A

input

Phase B

input

PRESET

input

DISABLE

input

2. Installation, Connect to the PLC

2.1 Mounting

The product is mounted by the following method.

• DIN rail mounting

• Direct mounting (mounting screw: M4 screw)

For further information on installation arrangements, refer to the following manuals.

→ Refer to the FX3U Series User's Manual - Hardware Edition.

→ Refer to the FX

3UC

Series User's Manual - Hardware Edition.

2.1.1 DIN Rail Mounting

The product can be mounted on a DIN rail (DIN46277, 35mm (1.38") width).

1) Fit the upper edge of the DIN rail mounting groove (fig. A) onto the DIN rail.

2) Press the product against the DIN rail.

- An interval space of 1 to 2 mm (0.04" to

0.08") between each unit is necessary.

2.1.2 Direct Mounting (mounting screw: M4 screw)

The product can be installed directly with screws. Refer to the External Dimensions (section 1.4) for the product’s mounting hole pitch information. An interval space between each unit of 1 to 2 mm (0.04" to 0.08") is necessary.

2.2 Connection to the PLC

A maximum of eight

FX3U-2HC(s) are connectable with the main unit or the right side of the powered extension unit/block. A unit number of No.0 to No.7 is assigned based on the order in which special function units/blocks are attached to the main unit. For connection to an FX

3UC

Series PLC or FX

2NC

Series PLC extension block, an

2NC

-CNV-IF or FX

3UC

-1PS-5V is required.

*1 Up to seven special function units/blocks in total can be connected to the

3UC

-32MT-LT(-2) PLC. Unit numbers assigned to special function units/

blocks begins with No.1.

For further information on installation arrangements, refer to the following manuals.

→ Refer to the FX3U Series User's Manual - Hardware Edition.

→ Refer to the FX

3UC

Series User's Manual - Hardware Edition.

3. Wiring (Power supply and analog input)

INSTALLATION 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.

INSTALLATION PRECAUTIONS

• Use the product within the generic environment specifications described in PLC main unit manual. Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas (salt air,

Cl2, H2S, SO2, or NO

), flammable gas, vibration or impacts, or expose it to high temperature, condensation, or rain and wind. If the product is used in such condition s, electric shock, fire, malfunctions, deterioration or damage may occur.

• Do not touch the conductive parts of the product directly. Doing so may cause device failures or malfunctions.

• Install the product on a flat surface. If the mounting surface is rough, undue force will be applied to the PC board, thereby causing nonconformities.

• 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.

• Be sure to remove the dust proof sheet from the PLC's ventilation port when installation work is completed. Failure to do so may cause fire, equipment failures or malfunctions.

• Connect extension cables securely to their designated connectors. Loose connections may cause malfunctions.

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.

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.

WIRING PRECAUTIONS

• 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 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.

Model name and composition of input/

output connector

Applicable electric wire

(UL-1061 are recommended)

and tool

Our model

name

Details of part

(made by DDK Ltd.)

Electric

wire size

Pressure bonding

tool (made by DDK

Ltd.)

FX-I/O-CON2-S for bulk wire

Housing:HU-400S2-001 Solderless contact:

AWG22

357J-5538

3.2.2 PNP output encoders

Class D

Encoder (PNP)

+24V

24V DC

PRESET

DISABLE

Phase

A24+

A12+

A 5+

A -

3.3k

1.5k

0.2k

0.12k

Class D

XD24

XD 5

COMD

1.65k

0.47k

0.22k

P24+

P12+

P 5+

P -

3.3k

1.5k

0.2k

0.12k

Class D

3UC

FX3U-2HC

Shielded

Twisted-Pair

Shielded

Twisted-Pair

Shielded

Twisted-Pair

Phase

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 .

When using 24V DC for PRESET or DISABLE signals, connect to the 24V

*1.

3.2.5 YH1, YH2 output wiring [Source wiring]

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.

3.3 Grounding

Grounding should be performed as stated below.

• The grounding resistance should be 100Ω or less.

• Independent grounding should be performed for best results.

When independent grounding is not performed, perform "shar ed grounding" of the following figure.

→ For details, refer to the FX3U Series User's Manual - Hardware Edition.

→ For details, refer to the FX

3UC

Series User's Manual - Hardware Edition.

• The grounding wire size should be AWG 22-20 (0.3-0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires

should be as short as possible.

4. Specifications

YH1+

YH1-

YH2+

YH2-

Fuse

-2HC

Output load driving power, 5 - 24V DC

PLCPLCPLC

Another

equipment

Shared grounding

Good condition

Common grounding

Not allowed

Independent grounding

Best condition

Another

equipment

Another

equipment

4.3 Performance Specifications

Item

Specification

Input signal

Signal level (Selected by terminal connection)

Phase A, Phase B, PRESET

[A24+],[B24+], [P24+]

24V DC±10%, 8mA or less

[A12+],[B12+], [P12+]

12V DC±10%, 8mA or less

[A5+],[B5+], [P5+]

3.0V to 5.5V DC,

12.5mA or less

DISABLE

[XD24]

10.8V to 26.4V DC, 15mA or less

[XD5]

5V DC±10%, 8mA or less

MAX. frequency

1-phase input

1 input

200kHz2 input

2-phase input

1 edge count

2 edge count 100kHz

4 edge count 50kHz

Pulse shape

t4 t4

t1 t1

t2 t3

FX3U-2HC

USER’S MANUAL

This manual describes the part names, dimensions, mounting, wiring, and specifications of the product. Before use, read this manual and the manuals of all relevant products fully to acquire proficiency in handling and operating the product. Make sure to learn all the product information, safety information, and precautions. Store this manual in a safe place so that it can be taken out and read whenever necessary. Always forward it to the end user. Registration: The company and product names described in this manual are registered trademarks or the trademarks of their respective companies.

Effective December 2009 Specifications are subject to change without notice.

2009 Mitsubishi Electric Corporation

Manual Number JY997D36701

Revision A

Date December 2009

Industrial automation

Elincom

Group

European

Union:www.elinco.eu

Russia: www.elinc.ru

Safety Precaution (Read these precautions before use.)

This manual classifies the safety precautions into two categories:

and .

Depending on the circumstances, procedures indicated by may also cause severe injury. It is important to follow all precautions for personal safety.

Associated Manuals

How to obtain manuals

For product manuals or documents, consult with the Mitsubishi Electric dealer from who you purchased your product.

Certification of UL, cUL standards

The following product has UL and cUL certification.

UL, cUL File Number:E95239 Models: MELSEC FX

3U series manufactured

from December 1st, 2009 FX

3U-2HC

Indicates that incorrect handling may cause hazardous conditions, resulting in death or severe injury.

Indicates that incorrect handling may cause hazardous conditions, resulting in medium or slight personal injury or physical damage.

Manual name Manual No. Description

3U Series

User’s Manual

- Hardware Edition

JY997D16501

MODEL CODE:

09R516

Explains the FX3U Series PLC specifications for I/O, wiring, installation, and maintenance.

3UC Series

User’s Manual

- Hardware Edition

JY997D28701

MODEL CODE:

09R519

Explains the FX3UC Series PLC specifications for I/O, wiring, installation, and maintenance.

3G/FX3U/FX3UC

Series Programming Manual

- Basic & Applied Instruction Edition

JY997D16601

MODEL CODE:

09R517

Describes FX

3G/FX3U/FX3UC

Series PLC programming for basic/ applied instructions and devices.

Requirement for Compliance with EMC directive

Attention

• This product is designed for use in industrial applications.

• Manufactured by:

Mitsubishi Electric Corporation 2-7-3 Marunouchi, Chiyoda-ku, Tokyo, 100-8310 Japan

• Manufactured at: Mitsubishi Electric Corporation Himeji Works 840 Chiyoda-machi, Himeji, Hyogo, 670-8677 Japan

• Authorized Representative in the European Community: Mitsubishi Electric Europe B.V. Gothaer Str. 8, 40880 Ratingen, Germany

Type: Programmable Controller (Open Type Equipment) Models: MELSEC FX

3U series manufactured

from December 1st, 2009 FX

3U-2HC

Caution for EC Directive

1. Outline

1.1 Outline

The hardware high-speed counter block is a 2-channel high-speed counter. It is a special function block for the FX

3U and FX3UC series PLC.

1.2 Major Features of the FX3U-2HC

• Differential-Line-Driver (AM26C31 or equivalent) and open collector output encoders are available for the FX

3U-2HC.

• The FX

3U-2HC has two outputs per channel. When the counter value coincides with

an output compare value, the appropriate output is set ON. The output transistors are individually isolated to allow either sink or source connection methods.

• Various counter modes, such as 1-phase or 2-phase, 16-bit or 32-bit modes, can be selected using commands in the sequence program. Allow the FX

3U-2HC unit to

run only after setting these mode parameters.

1.3 Incorporated Items

Verify that the following product and items are included in the package:

Standard Remark

EN61131-2:2003 Programmable controllers

- Equipment requirements

and tests

Compliance with all relevant aspects of the standard. EMI

• Radiated Emissions

• Conducted Emissions EMS

• Radiated electromagnetic field

• Fast Transient burst

• Electrostatic discharge

• High-energy surge

• Voltage drops and interruptions

• Conducted RF

• Power frequency magnetic field

Included Items

3U-2HC 1 Unit

Special unit/block No. label 1 Sheet

Dust proof protection sheet 1 Sheet

Manuals [Japanese version] 1 manual

Manuals [English version] (This manual) 1 manual

Weigh: 0.2kg (0.44lbs)

No. Name

[1]

Direct mounting hole: 2 holes of 4.5 (0.18") (mounting screw: M4 screw) Used when attaching FX

3U-2HC directly.

[2]

Extension cable (PLC side) Used to connect this special function block to the FX

3U/FX3UC main unit or an

extension block.

[3] CH1 connector

[4] CH2 connector

[5]

Status LED (the upper side: CH1, the lower side: CH2)

POWER (Green)

Power LED

ON when the 5V power supply is normally supplied from the PLC.

UP (Red) Up count LED The respective LED is ON accordin g

to up/down count direction of the counter.

DOWN (Red) Down count LED

A (Red)

A phase input LED

The respective LED is ON (flicker) according to ON/OFF of A and B input.

B (Red)

B phase input LED

DIS (Red) DISABLE input LED Th e r es pe ct iv e L ED is ON /O FF

according to ON/OFF of PRESET and DISABLE input.

PRE (Red) PRESET input LED

YH1 (Red) YH1 output LED Th e r es pe cti ve L ED is O N/ OFF

according to status of YH1 and YH2 output.

YH2 (Red) YH2 output LED

[6] Top cover

[7]

Extension connector (Extension side) Used to connect a FX

3U extension block to the right of this special function

block. Remove top cover for connecting.

[8] DIN rail mounting hook

[9] DIN rail mounting groove (DIN rail: DIN46277, 35mm (1.38") width)

87(3.43")

9(0.36")

55(2.17")

80(3.15")(mounting hole pitch)

[9]

[8]

90(3.55")

4(0.16")

[5]

[6]

[5]

[7]

CH2

A24+

A5+

B24+

B5+

P24+

P5+

A12+

A-

B12+

B-

P12+

P-

XD24

YH1+

YH2+

XD5

COMD

YH1-

YH2-

Notch

CH1

A24+

A5+

B24+

B5+

P24+

P5+

A12+

A-

B12+

B-

P12+

P-

XD24

YH1+

YH2+

XD5

COMD

YH1-

YH2-

YH1 output

YH2 output

Notch

-2HC connector arrange ment

Phase A

input

Phase B

input

PRESET

input

DISABLE

input

2.1 Mounting

The product is mounted by the following method.

• DIN rail mounting

• Direct mounting (mounting screw: M4 screw)

For further information on installation arrangements, refer to the following manuals.

→ Refer to the FX3U Series User's Manual - Hardware Edition.

→ Refer to the FX

3UC Series User's Manual - Hardware Edition.

2.1.1 DIN Rail Mounting

The product can be mounted on a DIN rail (DIN46277, 35mm (1.38") width).

1) Fit the upper edge of the DIN rail mounting groove (fig. A) onto the DIN rail.

2) Press the product against the DIN rail.

- An interval space of 1 to 2 mm (0.04" to

0.08") between each unit is necessary.

2.1.2 Direct Mounting (mounting screw: M4 screw)

2.2 Connection to the PLC

A maximum of eight

3U-2HC(s) are connectable with the main unit or the right

side of the powered extension unit/block. A unit number of No.0 to No.7 is assigned based on the order in which special function units/blocks are attached to the main unit. For connection to an FX

3UC Series PLC or FX2NC Series PLC extension block, an

2NC-CNV-IF or FX3UC-1PS-5V is required.

*1 Up to seven special function units/blocks in total can be connected to the

3UC-32MT-LT(-2) PLC. Unit numbers assigned to special function units/

blocks begins with No.1.

For further information on installation arrangements, refer to the following manuals.

→ Refer to the FX3U Series User's Manual - Hardware Edition.

→ Refer to the FX

3UC Series User's Manual - Hardware Edition.

3. Wiring (Power supply and analog input)

attempting installation or wiring work. Failure to do so may cause electric shock or damage to the product.

INSTALLATION PRECAUTIONS

Cl2, H2S, SO2, or NO2), flammable gas, vibration

or impacts, or expose it to high temperature, condensation, or rain and wind. If the product is used in such condition s, electric shock, fire, malfunctions, deterioration or damage may occur.

• Do not touch the conductive parts of the product directly. Doing so may cause device failures or malfunctions.

• Install the product on a flat surface. If the mounting surface is rough, undue force will be applied to the PC board, thereby causing nonconformities.

• 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.

• Be sure to remove the dust proof sheet from the PLC's ventilation port when installation work is completed. Failure to do so may cause fire, equipment failures or malfunctions.

• Connect extension cables securely to their designated connectors. Loose connections may cause malfunctions.

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.

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.

2) Connectors for user-made input/output cables (available from Mitsubishi) Users should provide electric wires and a pressure bonding tool.

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

WIRING PRECAUTIONS

• 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 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:

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.

Model name and composition of input/

output connector

Applicable electric wire

(UL-1061 are recommended)

and tool

Our model

name

Details of part

(made by DDK Ltd.)

Electric

wire size

Pressure bonding

tool (made by DDK

Ltd.)

FX-I/O-CON2-S for bulk wire (2-piece set)

Housing:HU-400S2-001 Solderless contact: HU-411S

AWG22

(0.3mm

)

357J-5538

FX-I/O-CON2-SA for bulk wire (2-piece set)

Housing:HU-400S2-001 Solderless contact: HU-411SA

AWG20

(0.5mm

)

357J-13963

Encoder (NPN)

+24V

24V DC

Phase

Class D

PRESET

DISABLE

A24+

A12+

A 5+

A -

3.3k

1.5k

0.2k

0.12k

XD24

XD 5

COMD

1.65k

0.47k

0.22k

Wiring of the B phase is the same as that of the A phase.

P24+

P12+

P 5+

P -

3.3k

1.5k

0.2k

0.12k

Class D

Class D Class D

Class D

3UC

FX3U-2HC

Shielded

Twisted-Pair

Shielded

Twisted-Pair

Shielded

Twisted-Pair

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 . When using 24V DC for PRESET or DISABLE signals, connect to the 24V DC (P24+, XD24) terminal

*1.

This wiring is unnecessary when not using the PRESET function or the DISABLE function.

*2. *3.

3.2.2 PNP output encoders

3.2.3 Differential-Line-Driver output encoders

When applying the Differential-Line-Driver encoder (AM26C31 or equivalent) to the FX

3U-2HC, connect the encoder output with the 5V DC terminal as shown in the figure

below.

3.2.4 YH1, YH2 output wiring [Sink wiring]

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.

Class D

Encoder (PNP)

+24V

24V DC

PRESET

DISABLE

Phase

*3.

*2. Wiring of t he B phase is the same as that of the A phase.

A24+

A12+

A 5+

A -

3.3k

1.5k

0.2k

0.12k

Class D

XD24

XD 5

COMD

1.65k

0.47k

0.22k

P24+

P12+

P 5+

P -

3.3k

1.5k

0.2k

0.12k

Class D

3UC

FX3U-2HC

Shielded

Twisted-Pair

Shielded

Twisted-Pair

Shielded

Twisted-Pair

Phase

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 . When using 24V DC for PRESET or DISABLE signals, connect to the 24V DC (P24+, XD24) terminal.

*1.

This wiring is unnecessary when not using the PRESET function or the DISABLE function.

Class D

Encoder

A 5+

A -

0.2k

0.12k

XD 5

COMD

0.47k

0.22k

+5V

5V DC

LAR

P 5+

P -

0.2k

0.12k

PRESET

Wiring of the B phase is the same as that of the A phase.

DISABLE

LZR

*1 *1

3UC

FX3U-2HC

This wiring is unnecessary when not using the PRESET function or the DISABLE function.

*1.

*2.

YH1+

YH1-

YH2+

YH2-

Fuse

-2HC

Output load driving power, 5 - 24V DC

3.2.5 YH1, YH2 output wiring [Source wiring]

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.

3.3 Grounding

Grounding should be performed as stated below.

• The grounding resistance should be 100Ω or less.

• Independent grounding should be performed for best results.

When independent grounding is not performed, perform "shar ed grounding" of the following figure.

→ For details, refer to the FX

3U Series User's Manual - Hardware Edition.

→ For details, refer to the FX

3UC Series User's Manual - Hardware Edition.

• 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

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

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 detec ts 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 design ed to ensure safe machinery operation in such a case.

3) Note that when an error occurs in a relay, triac 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 100mm (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 I/O connectors. Failure to do so may result in wire damage/breakage or PLC failure.

Item Specifications

Units driving power

5V DC, 245mA (Internal power supply from main unit or extension power supply unit)

Allowable instantaneous power failure time

Operation can be continued upon occurrence of instantaneous power failure for 1 ms or less.

YH1+

YH1-

YH2+

YH2-

Fuse

-2HC

Output load driving power, 5 - 24V DC

PLCPLCPLC

Another

equipment

Shared grounding

Good condition

Common grounding

Not allowed

Independent grounding

Best condition

Another

equipment

Another

equipment

4.3 Performance Specifications

4.4 Applicable PLC

The version number can be checked by reading the last three digits of device D8001.

*1 An FX

2NC-CNV-IF or FX3UC-1PS-5V is necessary to connect the FX3U-

2HC with the FX

3UC PLC.

Item

Specification

Input signal

Signal level (Selected by terminal connection)

Phase A, Phase B, PRESET

[A24+],[B24+], [P24+]

24V DC±10%, 8mA or less

[A12+],[B12+], [P12+]

12V DC±10%, 8mA or less

[A5+],[B5+], [P5+]

3.0V to 5.5V DC,

12.5mA or less

DISABLE

[XD24]

10.8V to 26.4V DC, 15mA or less

[XD5]

5V DC±10%, 8mA or less

MAX. frequency

1-phase input

1 input

200kHz2 input

2-phase input

1 edge count

2 edge count 100kHz

4 edge count 50kHz

Pulse shape

t1(ON/OFF pulse): 1.5μs or more (at 200kHz) t2(Phase difference between A and B):

0.75μs or more (at 200kHz) t3(Overlap time): 0.7μs or more (at 200kHz) t4(Rise/fall time): 0.75μs or less PRESET(Z phase) input signal width:

ON width 1.5μs or more, OFF width 30μs or more

DISABLE (count prohibit) input signal width:

ON width 100μs or more, OFF width 100μs or more

Counting specification

Format

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 Aphase input terminal.

• Software UP/DOWN: Up/down count is decided by the current value (K0/K1) of BFM #1, #41.

Range

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.)

Comparison Type

When the present value and the comparison set value of the counter are equal, the comparison output is set (ON) within 30 μs and is cleared (OFF) within 100 μs by the reset command.

Output signal

Types of outputs

YH1+: transistor output for

YH1 output

YH1-: transistor output for

YH1 output

YH2+: transistor output for

YH2 output

YH2-: transistor output for YH2 output

Output capacity

5V ~ 24V DC, 0.5A

I/O occupation 8 points (can be either inputs or outputs)

Model name Applicability

3U Series PLC Ver. 2.20 and later

3UC Series PLC

Ver. 2.20 and later

t4 t4

t1 t1

t2 t3

YH1+, YH2+

YH1-, YH2-

FX3U-2HC

USER’S MANUAL

Effective December 2009 Specifications are subject to change without notice.

Manual Number JY997D36701

Revision A

Date December 2009

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual.

Warranty

Mitsubishi will not be held liable for damage caused by factors found not to be the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the Mitsubishi products; damage, secondary damage, accident compensation caused by special factors unpredictable by Mitsubishi; damages to products other than Mitsubishi products; and to other duties.

For safe use

This product has been manufactured as a general-purpose part for general industries, and has not been designed or manufactured to be incorporated in a device or system used in purposes related to human life. Before using the product for special purposes such as nuclear power, electric power, aerospace, medicine or passenger movement vehicles, consult with Mitsubishi Electric. This product has been manufactured under strict quality control. However when installing the product where major accidents or losses could occur if the product fails, install appropriate backup or failsafe functions in the system.

•

HEAD OFFICE

HIMEJI WORKS

: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN : 840, CHIYODA CHO, HIMEJI, JAPAN

5. Buffer Memories (BFM)

5.1 Buffer memory List

Note:

1) When writing to BFM #0 (CH1 counter mode), BFM #1 to #27 and #29 bit1 to 6 will be initialized. When writing to BFM #40 (CH2 counter mode), BFM #41 to #67 and #29 bit10 to 15 will be initialized. When setting the counter mode, use a TOP (pulsed) instruction, or M8002 (initial pulse) to drive the TO instruction. (The continuous operation type cannot be used.)

2) Read/Write of 16 bit data When using a positive value between K32,768 and K65,535 with 16 bit counters, read/writes of data, such as the current value, ring length, preset data, YH1/YH2 compare value, maximum count value and the minimum count value should use the 32-bit forms of FROM/TO instructions ((D) FROM, (D) TO).

3) Read/write of 32 bit data The usage of a 32-bit FROM/TO instruction is recommended. In the event that a 16-bit FROM/TO instruction is used, the following cases need to be considered.

• If the writing order is low word first and then high word, the 32 bit data will

be written normally. Data becomes valid after both low and high words ar e written.

• In the event that data is not written in the order low word first and then high

word, the error bit b7 of BFM #29 turns ON.

5.2 Details of buffer memories

5.2.1 Counter mode [BFM #0 (CH1), #40 (CH2)]

The counter mode is shown in the upper right table. (Default value: K0)

BFM #

Description Default

BFM

Access

CH1 CH2

BFM #0 BFM #40

Counter mode (Setting range: K0 to K11)

K0 R/W

BFM #1 BFM #41

DOWN/UP command (1-phase 1-input mode [S/W UP/ DOWN] only)

K0 R/W

BFM #2 BFM #42

Ring length

Lower

K65536

R/W

BFM #3 BFM #43 Upper R/W

BFM #4 BFM #44 Command K0 R/W

BFM #5 ~ #9

BFM #45 ~ #49

Not used - -

BFM #10 BFM #50

Preset data

Lower

R/W

BFM #11 BFM #51 Upper R/W

BFM #12 BFM #52

YH1 compare value

Lower

K32767

R/W

BFM #13 BFM #53 Upper R/W

BFM #14 BFM #54

YH2 compare value

Lower

K32767

R/W

BFM #15 BFM #55 Upper R/W

BFM #16 ~ #19

BFM #56 ~ #59

Not used - -

BFM #20 BFM #60

Counter current value

Lower

R/W

BFM #21 BFM #61 Upper R/W

BFM #22 BFM #62

Maximum count value

Lower

R/W

BFM #23 BFM #63 Upper R/W

BFM #24 BFM #64

Minimum count value

Lower

R/W

BFM #25 BFM #65 Upper R/W

BFM #26 BFM #66 Compare results - R

BFM #27 BFM #67 Terminal status - R

BFM #28 Not used - -

BFM #29 Error status - R

BFM #30 Model identification code: K4020 K4020 R

BFM #31 ~ 39 Not used - -

BFM #68 ~ 32767 Not used - -

Note:

When writing to BFM #0 (CH1 counter mode), BFM #1 to #27 and #29 bit1 to 6 will be initialized. When writing to BFM #40 (CH2 counter mode), BFM #41 to #67 and #29 bit10 to 15 will be initialized. Please perform the setting of other BFM(s) after the setting of the counter mode (BFM #0, #40). When setting the counter mode, use a TOP (pulsed) instruction, or M8002 (initial pulse) to drive the TO instruction. (The continuous operation type cannot be used.)

1) 16/32-bit counter modes a) 32-bit counter modes

Modes: K0, K2, K4, K6, K8, K10 A 32-bit binary counter which executes UP/ DOWN counting will change from the lower limit value to the upper limit value or the upper limit value to the lower limit value when overflow occurs. Both the upper and lower limit values are fixed values: the upper limit value is +2,147,483,647, and the lower limit value is -2,147,483,648.

b) 16-bit counter modes

Modes: K1, K3, K5, K7, K9, K11 A 16-bit binary counter handles only positive values from 0 to 65,535. Changes to zero from the upper limit value or to the upper limit value from zero when overflow occurs; the upper limit value is determined by BFMs #3 and #2 (CH1), #43 and #42 (CH2).

2) 2-phase counter [1 edge-count] (K0, K1)

3) 2-phase counter [2 edge-count] (K2, K3)

4) 2-phase counter [4 edge-count] (K4, K5)

5) 1-phase 2-input counter (K6, K7)

6) 1-phase 1-input counter [Hardware UP/DOWN] (K8, K9)

Count modes 32 bits 16 bits Reference

2-phase input (phase difference pulse)

1 edge count K0 K1 1), 2)

2 edge count K2 K3 1), 3)

4 edge count K4 K5 1), 4)

1-phase 2-input (add/subtract pulse) K6 K7 1), 5)

1-phase 1-input

Hardware UP/DOWN K8 K9 1), 6)

Software UP/DOWN K10 K11 1), 7)

+2,147,483,647 Upper limit value

Lower limit value

-2,147,483,648

Ring length CH1 : (BFM #3, #2) -1 CH2 : (BFM #43, #42) -1

Phase A

Phase B

+1+1 -1-1

Phase B input OFF

→

ON while phase A input ON Count up by 1.

Phase B input ON → OFF while phase A input ON Count down by 1.

Phase A

Phase B

+1+1 -1-1

Phase B input OFF

→

ON (ON → OFF) while phase A input ON (OFF) Count up by 1.

Phase B input ON → OFF (OFF → ON) while phase A input ON (OFF) Count down by 1.

DOWN COUNT

Phase A

Phase B

UP COUNT

+1+1 +1+1 -1-1 -1-1

Phase A

Phase B

OFF

10423321

OFF

Phase A input-1 at OFF → ON

Phase B input+1 at OFF → ON

Phase A

Phase B

Current value

UP DOWN

ONOFF

OFF

UP/DOWN is determined by input phase A (ON/OFF).

7) 1-phase 1-input counter [Software UP/DOWN] (K10, K11)

5.2.2 DOWN /UP command [BFM #1 (CH1), #41 (CH2)]

When using the 1-phase 1-input counter [Software UP/DOWN] (counter mode: K10, K11), set the count direction by the current value of BFM #1 or BFM #41. (Default value: K0)

→ For the operation, refer to the Subsection 5.2.1 7)

5.2.3 Ring length [BFM #3, #2 (CH1), #43, #42 (CH2)]

When setting the upper limit value of the 16 bit counters, the setting range is K2 to K65536. (Default value: K65536) Please use the DTO instruction and write data as 32 bit data. When ring length K100 is specified, the current value of the counter is changed as shown the following figure, and the upper limit value is set to 99.

5.2.4 Command [BFM #4 (CH1), #44 (CH2)]

*1 When b0 is set to ON and the DISABLE input terminal to OFF, the counter is

permitted to start counting input pulses.

*2 Unless b1 is set to ON, YH1 (compared output) does not turn ON.

*3 Unless b2 is set to ON, YH2 (compared output) does not turn ON.

*4 When b3=ON, YH2 output is reset if YH1 output is set, and YH1 output is reset if

YH2 output is set. When b3=OFF, YH1 and YH2 output act independently, and do not reset each other. The mutual reset action becomes valid only when b oth the YH1 comparison output and the YH2 comparison output are permitted (b1, b2=ON).

*5 When b4=OFF, the preset function using the PRESET input terminal is disabled.

*6 When bit 5 is set to ON, the counter will be stopped and reset and the outputs

YH1 and YH2 will be switched OFF when the PLC is set from RUN to STOP.

*7 When bit 8 in BFM #4 is set to ON, the error flags bit 1 to 6 in BFM #29 will be

reset. The shared error flags (bit 7 and bit 8) will a lso be reset if no error on the other counter channel requires them to remain ON. When bit 8 in BFM #44 is set to ON, the error flags bit 10 to 15 in BFM #29 will be reset. The shared error flags (bit 7 and bit 8) will also be reset if no error on the other counter channel requires them to remain ON. After clearing BFM #29 error flags this flag will be reset automatically.

*8 b9 to b12 can perform a forced set of the YH1 output or the YH2 output, and

reset. The output is not changed when the forced set and reset are performed simultaneously.

Count Direction Setting Value

Up count K0

Down count K1

Bit No.

Setting Value

OFF (0) ON (1)

Count prohibit Count permit

YH1 compared output prohibit Y H1 compared output permit

YH2 compared output prohibit Y H2 compared output permit

YH1/YH2 independent action Mutual reset action

Preset prohibit Preset permit

No action if PLC is set from RUN

to STOP

(FX

2N-1HC compatibility mode)

Counter is stopped and reset if

PLC is set from RUN to STOP

b6, b7

Not used

No action Error flag reset

No action YH1 output reset

b10

No action YH2 output reset

b11

No action YH1 output set

b12

No action YH2 output set

b13 ~ b15 Not used

BFM #1, #41

Phase B

DOWN

K1K0

OFF

Current value

UP/DOWN is determined by the contents of BFM #1, #41 (K0/K1).

9998 0 1

DOWN

10 9899

5.2.5 Preset data [BFM #11, #10 (CH1), #51, #50 (CH2)]

When BFM #4, #44 b4 is ON and the PRESET input is switched from OFF to ON, preset data is stored in BFM #21, #20 (CH1) #61, #60 (CH2) (counter current value).

5.2.6 YH1 compare value [BFM #13, #12 (CH1), #53, #52 (CH2)], YH2 compare value [BFM #15, #14 (CH1), #55, #54 (CH2)]

• The comparison set value for the output currently written here and the present value of the counter are measured, and when the comparison result is equal, the YH1 output or the YH2 output is set to ON within 30 μs.

• Output occurs when the current value becomes equal to the compare value but only if b1 and b2 of BFM #4, #44 are ON. Once an output is set, it remains ON until it is reset by b9 or b10 of BFM #4, #44.

If b3 of BFM #4, #44 is ON, however, one of the outputs is reset when the other is set. (refer to the following figure)

5.2.7 Counter current value [BFM #21, #20 (CH1), #61, #60 (CH2)]

The current value of the counter can be read by the PLC. It will not be an accurate value during high-speed operations because of the communication delay. The current value of the counter can be forcibly changed by writing a 32-bit value into the appropriate BFMs from the PLC.

5.2.8 Maximum count value [BFM #23, #22 (CH1), #63, #62 (CH2)], Minimum count value [BFM #25, # 24 (CH1), #65, #64 (CH2)]

These BFM store the maximum and minimum value reached by the counter. If the power is turned off, the stored data is cleared. Any value written to maximum and minimum count value in 16 bit counter mode which is exceeding the valid range (0 <= value < ring length) will be automatically adjusted. Values < 0 will be adjusted to 0, values >= ring length will be adjusted to "ring length" - 1.

5.2.9 Compare results [BFM #26 (CH1), #66 (CH2)]

5.2.10 Terminal status [BFM #27 (CH1), #67 (CH2)]

5.2.11

Error status [BFM #29]

Bit No.

Targ et output

OFF (0) ON (1)

YH1

Compare value ≤ current value Compare value > current value

Compare value ≠ current value Compare value = current value

Compare value ≥ current value Compare value < current value

YH2

Compare value ≤ current value Compare value > current value

Compare value ≠ current value Compare value = current value

Compare value ≥ current value Compare value < current value

b6 ~ b15

Not used

Bit N0. Signal Name OFF (0) ON (1)

b0 PRESET input OFF ON

b1 DISABLE input OFF ON

b2 YH1 output OFF ON

b3 YH2 output OFF ON

b4 ~ b15 Not used

Bit N0. Error Status

b0 Set when any of b1 to b15 is ON.

Set when the value of the ring length is written incorrectly. (CH1)

• Outside of K2 to K65,536

• Written while CH1 is in

32-bit counter mode

• Ring length changed while counter running

Set when the preset value is written incorrectly. (CH1)

Value is other than "K0 to ring length-1" for 16-bit counters.

YH1/YH2 output

Current value

YH1/YH2 compare value

BFM #4,#44 b9,b10:ON

YH1 compare value

YH2 compare value

Current value

YH1 output

YH2 output

*1 In the following case, BFM #29 b7 turns on.

• write in a BFM that is not used

Bit N0. Error Status

Set when the compare value is written incorrectly. (CH1)

Value is other than "K0 to ring length-1" for 16-bit counters.

Set when the current value is written incorrectly. (CH1)

Set when the counter overflows the upper limit. (CH1)

When the upper or lower limit is exceeded on a 32bit counter.

Set when the counter underflows the lower limit. (CH1)

Set when the FROM/TO command is used incorrectly.

Set when the counter mode (BFM #0, #40) is written incorrectly.

Except K0 to K11

b9 Hardware error (UP, DOWN LED turn ON)

b10

Set when the value of the ring length is written incorrectly. (CH2)

• Outside of K2 to K65,536

• Written while CH2 is in

32-bit counter mode

• Ring length changed while counter running

b11

Set when the preset value is written incorrectly. (CH2)

Value is other than "K0 to ring length-1" for 16-bit counters.

b12

Set when the compare value is written incorrectly. (CH2)

b13

Set when the current value is written incorrectly. (CH2)

b14

Set when the counter overflows the upper limit. (CH2)

When the upper or lower limit is exceeded on a 32bit counter.

b15

Set when the counter underflows the lower limit. (CH2)

M8000

M11 M13

Count allowed

Output allowed, Mutual reset

Preset allowed

Error flag reset

YH1 output reset

YH2 output reset

X010

M10

X011

M14

X012

PLS M18

X013

PLS M19

PLS M20

K1000K2 K12 K1

K900K2 K14 K1

FNC 79

DTO

FNC 79

DTO

K1000

→ BFM #13, #12 (CH1)

Set the compare value for YH1 output.

K900 → BFM #15, #14 (CH1) Set the compare value for YH2 output (not necessary if only YH1 output is used).

Counting only occurs if the count permit is set to ON. Also, outputs will not be s et from the counting process at all if the relevant output prohibit is set in the command register. Please reset error flags and YH1/YH2 output before you start. The mutual reset and preset initialization commands can be used as required.

8. Diagnostics

1) The following LEDs on the main panel of the FX3U-2HC may help you to troubleshoot the unit.

a) A, B:

Goes on/off as A, B input turn ON/OFF. It can be checked by rotating the encoder slowly.

b) UP, DOWN:

Lights up to indicate whether the counter is going up (UP) or down (DOWN).

c) PRE, DIS:

The appropriate LED lights up when the PRESET (PRE) terminal or the DISABLE (DIS) terminal is ON.

d) YH1, YH2:

The appropriate LED lights up when YH1/YH2 output is turned on.

STARTUP AND MAINTENANCE PRECAUTIONS

• Do not disassemble or modify the PLC. Doing so may cause fire, equipment failures, or malfunctions. * For repair, contact your local Mitsubishi Electric distributor.

• Do not drop the product or exert strong impact to it. Doing so may cause damage.

DISPOSAL PRECAUTIONS

• Please contact a certified electronic waste disposal company for the environmentally safe recycling and disposal of your device.

TRANSPORT AND STORAGE PRECAUTIONS

• The product is a precision instrument. During transportation, avoid any impacts. Failure to do so may cause failures in the product. After transportation, verify the operations of the product.

Warranty

For safe use

•

HEAD OFFICE

HIMEJI WORKS

: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN : 840, CHIYODA CHO, HIMEJI, JAPAN

When setting the counter mode, use a TOP (pulsed) instruction, or M8002 (initial pulse) to drive the TO instruction. (The continuous operation type cannot be used.)