Mitsubishi Electric MELSEC-F FX2NC-1HC User Manual

JY997D30701C

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.

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

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/FX

3GC

/FX3U/

3UC

Series

Programming Manual

- Basic & Applied Instruction Edition

JY997D16601

MODEL CODE:

09R517

Describes PLC programming for basic/applied instructions and devices.

2NC

(DSS/DS) Series

Hardware Manual

JY992D76401

MODEL CODE:

09R509

Explains the FX

2NC

(DSS/DS) Series PLC specifications for I/O, wiring, installation, and maintenance.

2NC

(D/UL) Series

Hardware Manual

JY992D87201

Explains the FX

2NC

(D/UL) Series PLC specifications for I/O, wiring, installation, and maintenance.

FX Series Programming Manual II

JY992D88101

MODEL CODE:

09R512

Describes FX

/FX1N/FX2N/

2NC

Series PLC programming for basic/applied instructions and devices.

Certification of UL, cUL standards

The following product has UL and cUL certification.

UL, cUL File Number:E95239 Models: MELSEC FX

2NC

series manufactured

from December 1st, 2007 FX

2NC

-1HC

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.

Note

• 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

2NC

series manufactured

from December 1st, 2007 FX

2NC

-1HC

1. Outline

The hardware high-speed counter block is a 2-phase 50 kHz high-speed counter. It is a special function block for the FX

2NC

, FX

3UC

series PLC.

• FROM/TO instruction transfers the PLC data (i.e. parameters, comparing value and

present value).

• The FX

2NC-1HC

occupies 8 points of I/O on the FX

2NC

, FX

3UC

expansion bus. The 8 points can be allocated from either inputs or outputs. However, 5V DC 90mA power is supplied from the ma in unit or extension power supply units. There must be no power overload from this or any other extension unit. Furthermore, another power supply is needed for the output circuit of the encoder or the transistor.

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

2NC

-1HC.

• The source of your input signal should be a 1 or 2 phase encoder. A 5V, 12V, or 24V power source can be used. An initial value setting command input (PRESET) and a count prohibit command input (DISABLE) are also available.

• The FX

2NC-1HC

has two outputs. 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 from the PLC. Allow the FX

2NC

-1HC unit to run only after

setting these mode parameters.

Standard Remark

EN61000-6-4:2007 Electromagnetic compatibility

- Generic standards - Emission

standard for Industrial environment

Compliance with all relevant aspects of the standard. (Radiated Emissions and Mains Terminal Voltage Emissions)

EN61000-6-2:2005 Electromagnetic compatibility

- Generic immunity standard Industrial

environment

Compliance with all relevant aspects of the standard.(RF Immunity, Fast Transients, ESD, Conducted, Surges, Power Magnetic Fields, Voltage dips and Voltage interruptions)

EN61131-2:2007 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

1.1 Incorporated Items

Verify that the following product and items are included in the packag

1.2 External Dimensions, Part Names, and Terminal Layout

Included Items

2NC

-1HC 1 Unit

Special unit/block No. label 1 Sheet

Manuals [Japanese version, English version] 1 manual each

No. Name

Status LED

PW (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 according to up/ down count direction of the counter.

DN (Red) Down count LED

φA A phase input

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

φB B phase input

DISABLE input LED

The respective LED is ON/OFF according to ON/OFF of PRESET and DISABLE input.

PRESET input LED

YH YH output LED

The respective LED is ON/OFF according to status of YH and YS output.

YS YS output LED

Terminal block (European type)

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

2NC

, FX

3UC

main unit or

extension block.

Slide lock Used to fix the FX

2NC

extension block on the right side of this special function

block.

Extension connector (Extension side) Used to connect the FX

2NC

extension block to the right of this special function

block. Remove this cover for connecting.

DIN rail mounting hook

FX -1HC

2NC

φ A

A24+A12+

A5+

A-

B24+B12+B5+

B-

XD5COMDXP24

XP5

COMPYH-YS+

YS-

φ B

XD24YH+

A24+ A12+

A5+

AB24+ B12+

B5+

B-

XD5

COMD

XP24

XP5

COMP

YHYS+ YS-

XD24

YH+

90(3.55")

20.2

(0.8")

74(2.92")

(0.6")

Weight: Approx. 0.13kg (0.29lbs) (Includes terminal block)

Dimensions: mm (inches) Terminal layout

1 4

A phase input

B phase input

DISABLE input

PRESET input

YH output

YS output

2. Installation, Connect to the PLC

2.1 Installation

The FX

2NC

-1HC can be installed on a DIN46277 rail (35 mm (1.38") wide).

2.2 Number of the connectable units

1) FX

2NC

PLC Up to four special function units/blocks in total can be connected to the FX

2NC

Series PLC including those connected to the FX

2NC

-CNV-IF.

2) FX

3UC

PLC Up to eight special function units/blocks in total can be connected to the

3UC

Series PLC including those connec ted to the FX

2NC

-CNV-IF or

3UC

-1PS-5V.

*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.

2.3 Connection to the PLC

When connecting the FX

2NC

-1HC to

the FX

2NC

/ FX

3UC

Series main unit or extension block, remove the extension port cover from the right side of the main unit or extension block, keep the slide lock in the main unit or extension block pulled upward, then align the hook in the FX

2NC-1HC with the mounting hole in the former step of the main unit or

extension block. Then push the slide lock downward to fix the FX

2NC

-1HC. When connecting two

or more FX

2NC

-1HC units, connect an FX

2NC

-1HC unit to another FX

2NC

-1HC

unit in the same way.

3. Wiring

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.

• 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.

• Connect FX

2NC

-1HC securely to their designated connectors.

Loose connections may cause malfunctions.

• Use screwdrivers carefully when performing installation work, thus avoiding accident or product damage.

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.

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.

hook

Main unit

2NC

-1HC

3.1 Wire and Terminal Tightening Torque

3.1.1 Cable

1) Applicable cable

• 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 one point on the PLC. However, do not use common grounding with heavy electrical systems.

• Make sure to properly wire to the terminal board (European type) 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.

- The disposal size of the cable end should follow the dimensi ons described in the manual.

- Tightening torque should follow the specifications in the manual.

- Twist the end of strand wire and make sure that there are no loose wires.

- Do not solder-plate the electric wire ends.

- Do not connect more than the specified number of wires or electric wires of unspecified size.

- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

Type

Wire size

Single wire

0.3mm

to 0.5mm2(AWG22 to 20)

WIRING PRECAUTIONS

3.2.1 NPN output encoders

Encoder (NPN)

+24V

DC24V

Phase

Class D

Shielded

Twisted-Pair

Shielded

Twisted-Pair

PRESET

DISABLE

A24+

A12+

A 5+

A -

3.3k

1.5k

0.27k

0.1k

B24+

B12+

B 5+

B -

3.3k

1.5k

0.27k

0.1k

XD24

XD 5

COMD

1.5k

0.5k

0.2k

XP24

XP 5

COMP

1.5k

0.5k

0.2k

2NC

-1HC

2NC

3UC

3.2.3 Differential-Line-Driver output encoders

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

2NC

-1HC, connect the encoder output with the 5V DC terminal as shown in the left

figure.

3.2.4 YH, YS output wiring [Sink wiring]

Encoder

Class D

Shielded

Twisted-Pair

2NC

-1HC

2NC

3UC

A 5+

A -

0.27k

0.1k

B 5+

B -

0.27k

0.1k

XD 5

COMD

0.5k

0.2k

+5V

DC5V

LAR

LBR

XP 5

COMP

0.5k

0.2k

PRESET

Shielded

Twisted-Pair

*1. Grounding resistance 100 Ω or less.

*2. This wiring is unnecessary when not using the PRESET function and the

DISABLE function.

DISABLE

YH+

2NC

-1HC

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.)

4.2 Power Supply Specifications

4.3 Performance Specifications

Item Specifications

Units driving power

5V DC, 90mA (Internal power supply from main unit or extension power supply unit)

Item

Specification

Input signal

Signal level (Selected by terminal connection)

Phase A, Phase B

[A24+], [B24+]

24V DC±10%, 7mA or less

[A12+], [B12+]

12V DC±10%, 7mA or less

[A5+], [B5+]

3.0V to 5.5V DC,

12.5mA or less

PRESET, DISABLE

[XP24], [XD24]

10.8V to 26.4V DC, 15mA or less

[XP5], [XD5]

5V DC±10%, 8mA or less

MAX. frequency

1-phase input

1 input

50kHz2 input

2-phase input

1 edge count

2 edge count 25kHz

4 edge count 12.5kHz

t1 t1

2NC

-1HC

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 April 2015 Specifications are subject to change without notice.

2007 Mitsubishi Electric Corporation

Manual Number JY997D30701

Revision C

Date April 2015

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.

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

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.

3S/FX3G/FX3GC/FX3U/

3UC Series

Programming Manual

- Basic & Applied Instruction Edition

JY997D16601

MODEL CODE:

09R517

Describes PLC programming for basic/applied instructions and devices.

2NC (DSS/DS) Series

Hardware Manual

JY992D76401

MODEL CODE:

09R509

Explains the FX

2NC (DSS/DS)

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

2NC (D/UL) Series

Hardware Manual

JY992D87201

Explains the FX

2NC (D/UL) Series

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

FX Series Programming Manual II

JY992D88101

MODEL CODE:

09R512

Describes FX

1S/FX1N/FX2N/

2NC Series PLC programming

for basic/applied instructions and devices.

Compliance with EC directive (CE Marking)

Requirement for Compliance with EMC directive

Attention

• This product is designed for use in industrial applications.

Note

• 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

2NC series manufactured

from December 1st, 2007 FX

2NC-1HC

1. Outline

The hardware high-speed counter block is a 2-phase 50 kHz high-speed counter. It is a special function block for the FX

2NC, FX3UC series PLC.

• FROM/TO instruction transfers the PLC data (i.e. parameters, comparing value and

present value).

• The FX

2NC-1HC occupies 8 points of I/O on the FX2NC, FX3UC expansion bus. The

8 points can be allocated from either inputs or outputs. However, 5V DC 90mA power is supplied from the ma in unit or extension power supply units. There must be no power overload from this or any other extension unit. Furthermore, another power supply is needed for the output circuit of the encoder or the transistor.

• Differential-Line-Driver (AM26C31 or equivalent) and open collector output

encoders are available for FX

2NC-1HC.

• The source of your input signal should be a 1 or 2 phase encoder. A 5V, 12V, or 24V

power source can be used. An initial value setting command input (PRESET) and a count prohibit command input (DISABLE) are also available.

• The FX

2NC-1HC has two outputs. 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 from the PLC. Allow the FX2NC-1HC unit to run only after setting these mode parameters.

Standard Remark

EN61000-6-4:2007 Electromagnetic compatibility

- Generic standards - Emission standard for Industrial environment

Compliance with all relevant aspects of the standard. (Radiated Emissions and Mains Terminal Voltage Emissions)

EN61000-6-2:2005 Electromagnetic compatibility

- Generic immunity standard Industrial environment

Compliance with all relevant aspects of the standard.(RF Immunity, Fast Transients, ESD, Conducted, Surges, Power Magnetic Fields, Voltage dips and Voltage interruptions)

EN61131-2:2007 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

1.2 External Dimensions, Part Names, and Terminal Layout

Special unit/block No. label 1 Sheet

Manuals [Japanese version, English version] 1 manual each

No. Name

Status LED

PW (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 according to up/ down count direction of the counter.

DN (Red) Down count LED

φA A phase input

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

φB B phase input

DISABLE input LED

The respective LED is ON/OFF according to ON/OFF of PRESET and DISABLE input.

PRESET input LED

YH YH output LED

The respective LED is ON/OFF according to status of YH and YS output.

YS YS output LED

Terminal block (European type)

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

2NC, FX3UC main unit or

extension block.

Slide lock Used to fix the FX

2NC extension block on the right side of this special function

block.

Extension connector (Extension side) Used to connect the FX

2NC extension block to the right of this special function

block. Remove this cover for connecting.

DIN rail mounting hook

FX -1HC

2NC

φ A

A24+A12+

A5+

A-

B24+B12+B5+

B-

XD5COMDXP24

XP5

COMPYH-YS+

YS-

φ B

XD24YH+

A24+ A12+

A5+

A- B24+ B12+

B5+

B-

XD5

COMD

XP24

XP5

COMP

YH- YS+ YS-

XD24

YH+

90(3.55")

20.2

(0.8")

74(2.92")

(0.6")

Weight: Approx. 0.13kg (0.29lbs) (Includes terminal block)

Dimensions: mm (inches) Terminal layout

1 4

A phase input

B phase input

DISABLE input

PRESET input

YH output

YS output

2.1 Installation

The FX

2NC

-1HC can be installed on a DIN46277 rail (35 mm (1.38") wide).

2.2 Number of the connectable units

1) FX2NC PLC Up to four special function units/blocks in total can be connected to the FX

2NC Series PLC including those connected to the FX2NC-CNV-IF.

2) FX

3UC PLC

Up to eight special function units/blocks in total can be connected to the

3UC

Series PLC including those connec ted to the FX2NC-CNV-IF or

3UC-1PS-5V.

*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.

2.3 Connection to the PLC

When connecting the FX

2NC-1HC to

the FX

2NC / FX3UC

2NC-1HC with the mounting hole in the former step of the main unit or

extension block. Then push the slide lock downward to fix the FX

2NC-1HC. When connecting two

or more FX

2NC-1HC units, connect an FX2NC-1HC unit to another FX2NC-1HC

unit in the same way.

3. Wiring

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.

• 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.

• Connect FX

2NC-1HC securely to their designated connectors.

Loose connections may cause malfunctions.

• Use screwdrivers carefully when performing installation work, thus avoiding accident or product damage.

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.

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.

hook

Main unit

2NC

-1HC

3.1 Wire and Terminal Tightening Torque

3.1.1 Cable

1) Applicable cable

2) Termination

Strip the coating of strand wire and twist the cable core before connecting it, or strip the coating of single wire before connect ing it. An alternative connection is to use a ferrule with insulating sleeve.

*1 Old model name: CRIMPFOX ZA 3

*2 Old model name: CRIMPFOX UD 6

• Stranded wire/solid wire • Bar terminal with insulating sleeve

When using a stick terminal wi th an insulating sleeve, ch oose a wire with proper cable sheath referring to the above outside dimensions, otherwise the wire cannot be inserted easily.

3.1.2 Tightening Torque

The tightening torque must be 0.22 to 0.25N•m. Do not tighten terminal screws exceeding the specified torque. Failure to do so may cause equipment failures or malfunctions.

Tool

To tighten terminals, use a purchased small-sized screwdriver whose head is straight and is not widened as shown in the right figure.

Note:

If the diameter of screwdriver grip is too small, tightening torque will not be able to be achieved. Use the following recommended screwdriver or an appropriate replacement (grip diameter: approximately 25mm).

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.

• 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 one point on the PLC. However, do not use common grounding with heavy electrical systems.

- The disposal size of the cable end should follow the dimensi ons described in the manual.

- Tightening torque should follow the specifications in the manual.

- Twist the end of strand wire and make sure that there are no loose wires.

- Do not solder-plate the electric wire ends.

- Do not connect more than the specified number of wires or electric wires of unspecified size.

- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

Type Wire size

Single wire

0.3mm

to 0.5mm2(AWG22 to 20)

Double wire

0.3mm

(AWG22)*2

Manufacturer Model Pressure bonding tool

Phoenix Contact AI 0.5-8WH

CRIMPFOX 6

(or CRIMPFOX 6T-F*2)

Manufacturer Model

Phoenix Contact SZS 0.4

×2.5

WIRING PRECAUTIONS

9mm

(0.36")

Termination of

cable end

8mm

(0.32")

Contact area (Crimp area)

14mm(0.56")

2.6mm (0.11")

Insulating sleeve

0.4mm (0.02")

2.5mm (0.1")

With straight tip

3.2.1 NPN output encoders

3.2.2 PNP output encoders

*1. Drive power supply of the encoder. Use either 24V DC, 12V DC, or 5V DC according to t he encoder type. When connecting the A phase, the B phase, and the Z phase to F X

2NC

-1HC, connect to the power supply terminal. When using 24V DC for PRESET and DISABLE signal s, connect to the 24V DC (XP24, XD24) terminal.

*3. This wiring is unnecessary when not using the PRESET function and t he

DISABLE function.

Encoder (NPN)

+24V

DC24V

Phase

Class D

Shielded

Twisted-Pair

Shielded

Twisted-Pair

PRESET

DISABLE

A24+

A12+

A 5+

A -

3.3k

1.5k

0.27k

0.1k

B24+

B12+

B 5+

B -

3.3k

1.5k

0.27k

0.1k

XD24

XD 5

COMD

1.5k

0.5k

0.2k

XP24

XP 5

COMP

1.5k

0.5k

0.2k

2NC

-1HC

2NC

3UC

*2. Grounding resistance 100 Ω or less.

Encoder (PNP)

+24V

DC24V

Phase

Class D

Shielded

Twisted-Pair

Shielded

Twisted-Pair

PRESET

DISABLE

A24+

A12+

A 5+

A -

3.3k

1.5k

0.27k

0.1k

B24+

B12+

B 5+

B -

3.3k

1.5k

0.27k

0.1k

XD24

XD 5

COMD

1.5k

0.5k

0.2k

XP24

XP 5

COMP

1.5k

0.5k

0.2k

2NC

-1HC

2NC

3UC

Phase

*1. Drive power supply of the encoder. Use either 24V DC, 12V DC, or 5V DC according to t he encoder type. When connecting the A phase, the B phase, and the Z phase to FX

2NC

-1HC, connect to the power supply terminal. When using 24V DC for PRESET and DISABLE signals, connect to the 24V DC (XP24, XD24) terminal.

*3. This wiring is unnecessary when not using the PRESET funct ion and the

DISABLE function.

*2. Grounding resistance 100 Ω or less.

3.2.3 Differential-Line-Driver output encoders

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

2NC-1HC, connect the encoder output with the 5V DC terminal as shown in the left

figure.

3.2.4 YH, YS output wiring [Sink wiring]

3.2.5 YH, YS output wiring [Source wiring]

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 (s uch 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.

Encoder

Class D

Shielded

Twisted-Pair

2NC

-1HC

2NC

3UC

A 5+

A -

0.27k

0.1k

B 5+

B -

0.27k

0.1k

XD 5

COMD

0.5k

0.2k

+5V

DC5V

LAR

LBR

XP 5

COMP

0.5k

0.2k

PRESET

Shielded

Twisted-Pair

*1. Grounding resistance 100 Ω or less.

*2. This wiring is unnecessary when not using the PRESET function and the

DISABLE function.

DISABLE

YH+

YH-

YS+

YS-

Output load driving power, 5 - 24V DC

2NC

-1HC

Fuse

YH+

YH-

YS+

YS-

Output load driving power, 5 - 24V DC

2NC

-1HC

Fuse

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.)

4.2 Power Supply Specifications

4.3 Performance Specifications

Item Specifications

Units driving power

5V DC, 90mA (Internal power supply from main unit or extension power supply unit)

Item

Specification

Input signal

Signal level (Selected by terminal connection)

Phase A, Phase B

[A24+], [B24+]

24V DC±10%, 7mA or less

[A12+], [B12+]

12V DC±10%, 7mA or less

[A5+], [B5+]

3.0V to 5.5V DC,

12.5mA or less

PRESET, DISABLE

[XP24], [XD24]

10.8V to 26.4V DC, 15mA or less

[XP5], [XD5]

5V DC±10%, 8mA or less

MAX. frequency

1-phase input

1 input

50kHz2 input

2-phase input

1 edge count

2 edge count 25kHz

4 edge count 12.5kHz

Pulse shape

t1(Rise/fall time): 3μs or less t2(ON/OFF pulse): 6μs or more (at 50kHz) t3(Phase difference between A and B):

3.5μs or more (at 50kHz) PRESET(Z phase) input 100μs or more DISABLE (count prohibit) input 100μs or more

Counting specification

Format

Automatic UP/DOWN However, when on 1-phase 1-input mode, UP/ DOWN is determined below.

• 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.

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.)

Comparison Type

Each output is set when the present value of the counter matches with the compare value, and is switched OFF by a reset command. YH: Direct output processed by hardware. YS: Software processed output with worst delay

time of 300μs. Therefore, when the input frequency is 50 kHz, there is a worst case delay of 15 input pulses.

Output signal

Types of outputs

YH +: transistor output for

YH output

YH -: transistor output for

YH output

YS +: transistor output for

YS output

YS -: transistor output for YS output

Output capacity

5V ~ 24V DC, 0.5A

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

t1 t1

YH+, YS+

YH-, YS-

USER'S MANUAL

Effective April 2015 Specifications are subject to change without notice.

Manual Number JY997D30701

Revision C

Date April 2015

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

5. Buffer Memories (BFM)

5.1 Buffer memory List

Note;

1) When writing in BFM #0 (counter mode), the BFM #1 to #31 will be initialized. After setting the counter mode (BFM #0), other BFM(s) have to be setup. When setting the counter mode, use a TOP (pulsed) instruction, or M8002 (initial pulse) to drive the TO instruction.

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, and the YH/YS compare value, should use the 32-bit forms of the FROM/TO instructions ((D) FROM, (D) TO).

5.2 Details of buffer memories

5.2.1 Counter mode [BFM #0]

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

Note;

When writing in BFM #0 (counter mode), the BFM #1 to #31 will be initialized. After setting the counter mode (BFM #0), other BFM(s) have to be setup. When setting the counter mode, use a TOP (pulsed) instruction, or M8002 (initial pulse) to drive the TO instruction.

BFM # Description Default

BFM

Access

BFM #0 Counter mode (Setting range: K0 to K11) K0 R/W

BFM #1

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

K0 R/W

BFM #2

Ring length

Lower

K65536

R/W

BFM #3 Upper R/W

BFM #4 Command K0 R/W

BFM #5 ~ #9

Not available - -

BFM #10

Preset data

Lower

R/W

BFM #11 Upper R/W

BFM #12

YH compare value

Lower

K32767

R/W

BFM #13 Upper R/W

BFM #14

YS compare value

Lower

K32767

R/W

BFM #15 Upper R/W

BFM #16 ~ #19

Not available - -

BFM #20

Counter current value

Lower

R/W

BFM #21 Upper R/W

BFM #22

Maximum count value

Lower

R/W

BFM #23 Upper R/W

BFM #24

Minimum count value

Lower

R/W

BFM #25 Upper R/W

BFM #26 Compare results - R

BFM #27 Terminal status - R

BFM #28 Not available - -

BFM #29 Error status - R

BFM #30 Model identification code: K4010 K4010 R

BFM #31 Not available - -

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

(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.

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)

If both phase A and phase B inputs are received simultaneously, the counter value does not change.

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 (BFM #3, #2) - 1

Phase A

Phase B

Phase B input ON

→

OFF while phase A input ON Count down by 1.

Phase B input OFF

→

ON while phase A input ON Count up by 1.

+1+1 -1-1

Phase A

Phase B

Phase B input OFF

→

ON while phase A input ON Count up by 1.

+1+1

Phase B input ON

→

OFF while phase A input ON Count down by 1.

-1-1

DOWN COUNT

Phase A

Phase B

UP COUNT

+ 1

-1-1 -1-1

Phase A

Phase B

Phase A input-1 at OFF

→

Phase B input+1 at OFF

→

OFF

10323321

OFF

Phase A

Phase B

Current value

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

UP DOWN

ONOFF

OFF

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

5.2.2 DOWN/UP command [BFM #1]

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. (Default value: K0)

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

5.2.3 Ring length [BFM #3, #2]

When setting the upper limit value of the 16 bit counters, the setting range is K2 to K65536. (Default value: K65536) In this example, K100 is written to BFM #3, #2 of special function block No.2 as 32 bit data.

When ring length K100 is specified, the current value of the counter is changed as the right figure, and upper limit value is set to 99.

5.2.4 Command [BFM #4]

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, YH (hardware compared output) does not turn ON.

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

4) When b3=ON, YS output is reset if YH output is set, and YH output is reset if YS output is set. When b3=OFF, YH and YS output act independently, and do not reset each other.

5) When b4=OFF, preset function by the PRESET input terminal is disabled.

→ For the preset details, refer to Subsection 5.2.5

6) When b8 is set to ON, all error flags are reset.

7) When b9 is set to ON, YH output is reset.

8) When b10 is set to ON, YS output is reset.

9) When b11 is set to ON, YH output is set ON.

10)When b12 is set to ON, YS output is set ON.

Count Direction Setting Value

Up count K0

Down count K1

Bit No.

Setting Value

OFF (0) ON (1)

b0 Count prohibit Count permit

b1 YH output prohibit YH output permit

b2 YS output prohibit YS output pe rmit

b3 YH/YS independent action Mutual reset action

b4 Preset prohibit Preset permit

b5 ~ b7 Not available

b8 No action Error flag reset

b9 No action YH output reset

b10 No action YS output reset

b11 No action YH output set

b12 No action YH output set

b13 ~ b15 Not available

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

BFM #1

Phase B

Current value

DOWN

K1K0

OFF

FNC 79

DTO

K100K2 K2 K1

X002

DOWN

10 9899

9998 0 1

Example program

The ON/OFF status of M25 to M10 is written in BFM #4 of special function block No.2 by the following program, and b15 to b0 action. Among these, b4 to b0 are always ON as controlled by M10-M14. Furthermore, b8 (M18), b9 (M19), and b10 (M20) are controlled by the input X004 of the PLC, and X005 by ON/OFF.

5.2.5 Preset data [BFM #11, #10]

When BFM #4 b4 is ON and the PRESET input is switched from OFF to ON, preset data is stored into BFM #21, #20 (counter current value).

→ For command details, refer to Subsection 5.2.4

5.2.6 YH compare value [BFM #13,#12], YH compare value [BFM #15,#14]

• After comparing the current value of the counter with the value written in BFM #13 and #12, BFM #15 and #14, the hardware and software comparator in the FX

2NC-

1HC outputs the comparison result.

• YH, YS output will not turn ON if using PRESET or the TO instruction to set the counter value equal to the comparison value. It will turn ON only when a match occurs by the counting of input pulses. However, when BFM #4 b1, b2 are OFF, it does not set.

• Output occurs when the current value becomes equal to the compare value but only if b1 and b2 of BFM #4 are ON. Once an output is set, it remains ON until it is reset by b9 or b10 of BFM #4. If b3 of BFM #4 is ON, however, one of the outputs is reset when the other is set.

• The YS comparison operation takes about 300μs, and if a match occurs, the output goes ON.

5.2.7 Counter current value [BFM #21, #20]

The current value of the counter can be read by the PLC. It will not be the correct 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], Minimum count value [BFM #25, # 24]

These store the maximum and minimum value reached by the counter. If the power is turned off, the stored data is cleared.

5.2.9 Compare results [BFM #26]

Bit No.

Targ et output

OFF (0) ON (1)

Set value ≤ current value Set value > current value

b1 Set value ≠ current value S et value = current value

b2 Set value ≥ current value S et value < current value

Set value ≤ current value Set value > current value

b4 Set value ≠ current value S et value = current value

b5 Set value ≥ current value S et value < current value

b6 ~ b15 Not available

FNC 79

DTO

K4M10K2 K4 K1

M8000

X004

X005

M8000

M10 M14

Count allowed, YH/YS Output allowed, Mutual reset, Preset allowed

RUN monitor

M18 Error flag reset

M19 M20 YH YS output reset

BFM #4 b9,b10

Setting value

urrent

alue

Coincidence output

Setting value

Cur

rent

valu

BFM #4 b9,b10

Coincidence output

5.2.10 Terminal status [BFM #27]

5.2.11

Error status [BFM #29]

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

b0 PRESET input OFF ON

b1 DISABLE input OFF ON

b2 YH output OFF ON

b 3 YS output OFF ON

b 4 ~ b15 Not available

Bit N0. Error Status

b0 Set when any of b1 to b 7 is ON.

Set when the value of the ring length is written incorrectly. (Except K2 to K65,536)

Set when the preset value is written incorrectly.

When value ≥ ring length in 16-bit counter mode.

Set when the compare value is written incorrectly.

Set when the current value is written in correctly.

Set when the counter overflows the upper limit.

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

Set when the counter overflows the lower limit.

b7 Set when the FROM/TO command is used incorrectly.

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

Except K0 to K11

M8000

M11 M13

FNC 79

DTO

K900K2 K14 K1

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

Count allowed

Output allowed, Mutual reset

Preset allowed

Error flag reset

YH output reset

YS output reset

Note that counting only occurs if count prohibit is OFF. Also, outputs will not be set from the counting process at all if the relevant output prohibit are set in the command register. Please reset the error flags and YH/YS output before you start. The mutual reset and preset initialization commands can be used as required.

X010

M10

X011

M14

X012

PLS

M18

X013

PLS

M19

PLS

M20

FNC 79

8. Diagnostics

1) The following LEDs on the main panel of the FX2NC-1HC may help you to troubleshoot the unit.

a) φA, φB:

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

b) UP, DN:

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

c) PR, DS:

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

d) YH, YS:

The appropriate LED lights up when YH/YS 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 : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

(initial pulse) to drive the TO instruction.

5.2 Details of buffer memories

5.2.1 Counter mode [BFM #0]

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

Note;

BFM # Description Default

BFM

Access

BFM #0 Counter mode (Setting range: K0 to K11) K0 R/W

BFM #1

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

K0 R/W

BFM #2

Ring length

Lower

K65536

R/W

BFM #3 Upper R/W

BFM #4 Command K0 R/W

BFM #5 ~ #9

Not available - -

BFM #10

Preset data

Lower

R/W

BFM #11 Upper R/W

BFM #12

YH compare value

Lower

K32767

R/W

BFM #13 Upper R/W

BFM #14

YS compare value

Lower

K32767

R/W

BFM #15 Upper R/W

BFM #16 ~ #19

Not available - -

BFM #20

Counter current value

Lower

R/W

BFM #21 Upper R/W

BFM #22

Maximum count value

Lower

R/W

BFM #23 Upper R/W

BFM #24

Minimum count value

Lower

R/W

BFM #25 Upper R/W

BFM #26 Compare results - R

BFM #27 Terminal status - R

BFM #28 Not available - -

BFM #29 Error status - R

BFM #30 Model identification code: K4010 K4010 R

BFM #31 Not available - -

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

b) 16-bit counter modes

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)

If both phase A and phase B inputs are received simultaneously, the counter value does not change.

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

pulse)

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 (BFM #3, #2) - 1

Phase A

Phase B

Phase B input ON

→

OFF while phase A input ON Count down by 1.

Phase B input OFF

→

ON while phase A input ON Count up by 1.

+1+1 -1-1

Phase A

Phase B

Phase B input OFF

→

ON while phase A input ON Count up by 1.

+1+1

Phase B input ON

→

OFF while phase A input ON Count down by 1.

-1-1

DOWN COUNT

Phase A

Phase B

UP COUNT

+ 1

-1-1 -1-1

Phase A

Phase B

Phase A input-1 at OFF

→

Phase B input+1 at OFF

→

OFF

10323321

OFF

Phase A

Phase B

Current value

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

UP DOWN

ONOFF

OFF

5.2.2 DOWN/UP command [BFM #1]

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. (Default value: K0)

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

5.2.3 Ring length [BFM #3, #2]

When ring length K100 is specified, the current value of the counter is changed as the right figure, and upper limit value is set to 99.

5.2.4 Command [BFM #4]

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, YH (hardware compared output) does not turn ON.

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

4) When b3=ON, YS output is reset if YH output is set, and YH output is reset if YS output is set. When b3=OFF, YH and YS output act independently, and do not reset each other.

5) When b4=OFF, preset function by the PRESET input terminal is disabled.

→ For the preset details, refer to Subsection 5.2.5

6) When b8 is set to ON, all error flags are reset.

7) When b9 is set to ON, YH output is reset.

8) When b10 is set to ON, YS output is reset.

9) When b11 is set to ON, YH output is set ON.

10)When b12 is set to ON, YS output is set ON.

Count Direction Setting Value

Up count K0

Down count K1

Bit No.

Setting Value

OFF (0) ON (1)

b0 Count prohibit Count permit

b1 YH output prohibit YH output permit

b2 YS output prohibit YS output pe rmit

b3 YH/YS independent action Mutual reset action

b4 Preset prohibit Preset permit

b5 ~ b7 Not available

b8 No action Error flag reset

b9 No action YH output reset

b10 No action YS output reset

b11 No action YH output set

b12 No action YH output set

b13 ~ b15 Not available

(K0/K1). Current value

DOWN

OFF

FNC 79

DTO

K100K2 K2 K1

X002

DOWN

10 9899

9998 0 1

5.2.5 Preset data [BFM #11, #10]

When BFM #4 b4 is ON and the PRESET input is switched from OFF to ON, preset data is stored into BFM #21, #20 (counter current value).

→ For command details, refer to Subsection 5.2.4

5.2.6 YH compare value [BFM #13,#12], YH compare value [BFM #15,#14]

• After comparing the current value of the counter with the value written in BFM #13 and #12, BFM #15 and #14, the hardware and software comparator in the FX

2NC-

1HC outputs the comparison result.

• The YS comparison operation takes about 300μs, and if a match occurs, the output goes ON.

5.2.7 Counter current value [BFM #21, #20]

5.2.8 Maximum count value [BFM #23, #22], Minimum count value [BFM #25, # 24]

These store the maximum and minimum value reached by the counter. If the power is turned off, the stored data is cleared.

5.2.9 Compare results [BFM #26]

Bit No.

Targ et output

OFF (0) ON (1)

Set value ≤ current value Set value > current value

b1 Set value ≠ current value S et value = current value

b2 Set value ≥ current value S et value < current value

Set value ≤ current value Set value > current value

b4 Set value ≠ current value S et value = current value

b5 Set value ≥ current value S et value < current value

b6 ~ b15 Not available

FNC 79

DTO

K4M10K2 K4 K1

M8000

X004

X005

M8000

M10 M14

Count allowed, YH/YS Output allowed, Mutual reset, Preset allowed

RUN monitor

M18 Error flag reset

M19 M20 YH YS output reset

BFM #4 b9,b10

Setting value

urrent

alue

Coincidence output

Setting value

Cur

rent

valu

BFM #4 b9,b10

Coincidence output

5.2.10 Terminal status [BFM #27]

5.2.11

Error status [BFM #29]

Error status in the FX2NC-1HC can be checked by reading the contents of b0 to b9 of BFM #29 to auxiliary relays of the PLC. There error flags can be reset by b8 of BFM #4.

5.2.12 Model identification code [BFM #30]

This BFM stores the identification number for FX2NC-1HC. The identification number for the FX

2N-1HC unit is K4010.

By reading this identification number, the user may create built-in checking routines to check whether the physical position of the FX

2NC-1HC matches to that

of the software.

6. Example Program

Please use the following program as a guide whenever you use the FX2NC-1HC unit. Other instructions to read the current value of the counter, status etc. can be added as required.

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

b0 PRESET input OFF ON

b1 DISABLE input OFF ON

b2 YH output OFF ON

b 3 YS output OFF ON

b 4 ~ b15 Not available

Bit N0. Error Status

b0 Set when any of b1 to b 7 is ON.

Set when the value of the ring length is written incorrectly. (Except K2 to K65,536)

Set when the preset value is written incorrectly.

When value ≥ ring length in 16-bit counter mode.

Set when the compare value is written incorrectly.

Set when the current value is written in correctly.

Set when the counter overflows the upper limit.

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

Set when the counter overflows the lower limit.

b7 Set when the FROM/TO command is used incorrectly.

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

Except K0 to K11

Set when the BFM number is written incorrectly.

Except K0 to K31

b10 ~ b15 Not available

FNC 78

FROM

K3M100K2 K29 K1

M8000

M8002

Initial pulse

FNC 79

K11K2 K0 K1

K11 is written into BFM #0 of special function block No.2. The counter input is 16-bit 1-phase. Please use a pulse command for this initialization.

FNC 79

DTO

K1234K2 K2 K1

K1234 → BFM #3, #2 (special function block No.2) The ring length can be specified when a 16-bit counter is specified.

FNC 79

K1K2 K1 K1

UP/DOWN direction should be specified for 1-phase 1-input software determined UP/DOWN counter.

FNC 79

DTO

K1000K2 K12 K1

K1000 → BFM #13, #12 Set the compare value for YH output.

7. Preliminary checks

1) Check that the I/O wiring and extension cable of the FX2NC-1HC are properly connected.

2) The FX

2NC-1HC occupies 8 points of I/O on the FX2NC, FX3UC expansion bus.

The 8 points can be allocated from either inputs or outputs. 5V DC 90mA power is supplied from the main or extension power supply units (FX

3UC only) for the FX2NC-1HC. Check that there is no power overload from this

and other extension blocks.

3) The following derating curve shows the simultaneous ON ratio of available power for products connected to the FX

2NC-1HC with respect to the ambient

temperature. Use the adjoined following product within the simultaneous input ON ratio range shown in the figure.

Target input extension block:FX

2NC-16EX, FX2NC-16EX-DS,

2NC-32EX, FX2NC-32EX-DS

4) The counter works correctly only when data such as the counter mode (set with a pulse command), the TO command, the compare value, etc. are appropriately specified. Remember to initialize the count (BFM #4 b0), preset (BFM #4 b4), and output (BFM #4 b2, b1) prohibits. Reset the YH/YS outputs before you start.

Note

Note that inputting the pulse higher than the maximum frequency may cause miscounting to FX

2NC-1HC or a FROM/TO error to the PLC main unit.

M8000

M11 M13

FNC 79

DTO

K900K2 K14 K1

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

Count allowed

Output allowed, Mutual reset

Preset allowed

Error flag reset

YH output reset

YS output reset

X010

M10

X011

M14

X012

PLS

M18

X013

PLS

M19

PLS

M20

RUN

monitor

FNC 79

K4M10K2 K4 K1

FNC 78

DFROM

D2K2 K20 K1

(M25 to M10) → BFM #4 (b15 to b0) command

BFM (#21, #20)

→

Reads the current value to the data registers D3 and D2.

Derating curve: FX

2NC

-16EX(-DS), FX

2NC

-32EX(-DS)

Simultaneous ON ratio

100%

45°C

60%

55°C Ambient temperature

Supply voltage:24V DC

8. Diagnostics

1) The following LEDs on the main panel of the FX2NC-1HC may help you to troubleshoot the unit.

a) φA, φB:

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

b) UP, DN:

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

c) PR, DS:

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

d) YH, YS:

The appropriate LED lights up when YH/YS output is turned on.

2) You can check the error status by reading the content of BFM #29 to the PLC.

→ For error contents, refer to the Subsection 5.2.11

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.

9. System Block Diagram

BFM #4 b1

16-bit counter

1-phase 1-input counter

ØB

ØA

DISABLE

PRESET

Preset data

BFM#11, #10

Model code

BFM #30

Maximum valu e BFM #23, #22

Minimum valu e BFM #25, #24

Error status

BFM #29

Comparisor data

BFM #13, #12

Comparision data

BFM #15, #14

Compare results

BFM #26

Terminal status

BFM #27

ØZ

Direct initialization

Count start

BFM#4 b4

DOWN/UP

Counter 16/32-bit

1-phase/2-phase

Current value

BFM #21, #20

Reset BFM #4 b8

for YH output

Matched

for YS output

Sampling cycle 300

Comparison is made at the next sampling point after an input count.

Matched

BFM #4 b11

BFM #4 b9

BFM #4 b2

BFM #4 b12

BFM #4 b10

Count pulse

BFM #4 b0

BFM #4 b3

Counter mode

BFM #0

Ring upper limit value

BFM #3, #2

DOWN/UP command

BFM #1

Initialization

JY997D30701C

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.

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

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.

3S/FX3G/FX3GC/FX3U/

3UC Series

Programming Manual

- Basic & Applied Instruction Edition

JY997D16601

MODEL CODE:

09R517

Describes PLC programming for basic/applied instructions and devices.

2NC (DSS/DS) Series

Hardware Manual

JY992D76401

MODEL CODE:

09R509

Explains the FX

2NC (DSS/DS)

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

2NC (D/UL) Series

Hardware Manual

JY992D87201

Explains the FX

2NC (D/UL) Series

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

FX Series Programming Manual II

JY992D88101

MODEL CODE:

09R512

Describes FX

1S/FX1N/FX2N/

2NC Series PLC programming

for basic/applied instructions and devices.

Certification of UL, cUL standards

The following product has UL and cUL certification.

UL, cUL File Number:E95239 Models: MELSEC FX

2NC series manufactured

from December 1st, 2007 FX

2NC-1HC

Compliance with EC directive (CE Marking)

Requirement for Compliance with EMC directive

Attention

• This product is designed for use in industrial applications.

Note

• 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

2NC series manufactured

from December 1st, 2007 FX

2NC-1HC

1. Outline

The hardware high-speed counter block is a 2-phase 50 kHz high-speed counter. It is a special function block for the FX

2NC, FX3UC series PLC.

• FROM/TO instruction transfers the PLC data (i.e. parameters, comparing value and

present value).

• The FX

2NC-1HC occupies 8 points of I/O on the FX2NC, FX3UC expansion bus. The

8 points can be allocated from either inputs or outputs. However, 5V DC 90mA power is supplied from the main unit or extension power supply units. There must be no power overload from this or any other extension unit. Furthermore, another power supply is needed for the output circuit of the encoder or the transistor.

• Differential-Line-Driver (AM26C31 or equivalent) and open collector output

encoders are available for FX

2NC-1HC.

• The source of your input signal should be a 1 or 2 phase encoder. A 5V, 12V, or 24V

power source can be used. An initial value setting command input (PRESET) and a count prohibit command input (DISABLE) are also available.

• The FX

2NC-1HC has two outputs. 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 from the PLC. Allow the FX2NC-1HC unit to run only after setting these mode parameters.

Standard Remark

EN61000-6-4:2007 Electromagnetic compatibility

- Generic standards - Emission standard for Industrial environment

Compliance with all relevant aspects of the standard. (Radiated Emissions and Mains Terminal Voltage Emissions)

EN61000-6-2:2005 Electromagnetic compatibility

- Generic immunity standard Industrial environment

Compliance with all relevant aspects of the standard.(RF Immunity, Fast Transients, ESD, Conducted, Surges, Power Magnetic Fields, Voltage dips and Voltage interruptions)

EN61131-2:2007 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

1.1 Incorporated Items

Verify that the following product and items are included in the packag

1.2 External Dimensions, Part Names, and Terminal Layout

Included Items

2NC-1HC 1 Unit

Special unit/block No. label 1 Sheet

Manuals [Japanese version, English version] 1 manual each

No. Name

Status LED

PW (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 according to up/ down count direction of the counter.

DN (Red) Down count LED

φA A phase input

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

φB B phase input

DISABLE input LED

The respective LED is ON/OFF according to ON/OFF of PRESET and DISABLE input.

PRESET input LED

YH YH output LED

The respective LED is ON/OFF according to status of YH and YS output.

YS YS output LED

Terminal block (European type)

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

2NC, FX3UC main unit or

extension block.

Slide lock Used to fix the FX

2NC extension block on the right side of this special function

block.

Extension connector (Extension side) Used to connect the FX

2NC extension block to the right of this special function

block. Remove this cover for connecting.

DIN rail mounting hook

FX -1HC

2NC

φ A

A24+A12+

A5+

A-

B24+B12+B5+

B-

XD5COMDXP24

XP5

COMPYH-YS+

YS-

φ B

XD24YH+

A24+ A12+ A5+

AB24+ B12+ B5+

B-

XD5

COMD

XP24 XP5

COMP

YH-

YS+

YS-

XD24

YH+

90(3.55")

20.2

(0.8")

74(2.92")

(0.6")

Weight: Approx. 0.13kg (0.29lbs) (Includes terminal block)

Dimensions: mm (inches) Terminal layout

1 4

A phase input

B phase input

DISABLE input

PRESET input

YH output

YS output

2. Installation, Connect to t he PLC

2.1 Installation

The FX

2NC

-1HC can be installed on a DIN46277 rail ( 35 mm (1.38") wide).

2.2 Number of the connectable units

1) FX2NC PLC Up to four special function units/blocks in total can be connected to the FX

2NC Series PLC including those connected to the FX2NC-CNV-IF.

2) FX

3UC PLC

Up to eight special function units/blocks in total can be connected to the

3UC

Series PLC including those connecte d to the FX2NC-CNV-IF or

3UC-1PS-5V.

*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.

2.3 Connection to the PLC

When connecting the FX

2NC-1HC to

the FX

2NC / FX3UC

2NC-1HC with the mounting hole in the former step of the main unit or

extension block. Then push the slide lock downward to fix the FX

2NC-1HC. When connecting two

or more FX

2NC-1HC units, connect an FX2NC-1HC unit to another FX2NC-1HC

unit in the same way.

3. Wiring

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

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 conditions, electric shock, fire, malfunctions, deterioration or damage may occur.

• 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.

• Connect FX

2NC-1HC securely to their designated connectors.

Loose connections may cause malfunctions.

• Use screwdrivers carefully when performing installation work, thus avoiding accident or product damage.

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.

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.

hook

Main unit

2NC

-1HC

3.1 Wire and Terminal Tightening Torque

3.1.1 Cable

1) Applicable cable

2) Termination

Strip the coating of strand wire and twist the cable core before connecting it, or strip the coating of single wire before connectin g it. An alternative connection is to use a ferrule with insulating sleeve.

*1 Old model name: CRIMPFOX ZA 3

*2 Old model name: CRIMPFOX UD 6

• Stranded wire/solid wire • Bar terminal with insulating sleeve

When using a stick terminal wit h an insulating sleeve, choose a wire with proper cable sheath referring to the above outside dimensions, otherwise the wire cannot be inserted easily.

3.1.2 Tightening Torque

The tightening torque must be 0.22 to 0.25N•m. Do not tighten terminal screws exceeding the specified torque. Failure to do so may cause equipment failures or malfunctions.

Tool

To tighten terminals, use a purchased small-sized screwdriver whose head is straight and is not widened as shown in the right figure.

Note:

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.

• 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 one point on the PLC. However, do not use common grounding with heavy electrical systems.

- The disposal size of the cable end should follow the dimensions described in the manual.

- Tightening torque should follow the specifications in the manual.

- Twist the end of strand wire and make sure that there are no loose wires.

- Do not solder-plate the electric wire ends.

- Do not connect more than the specified number of wires or electric wires of unspecified size.

- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

Type Wire size

Single wire

0.3mm

to 0.5mm2(AWG22 to 20)

Double wire

0.3mm

(AWG22)*2

Manufacturer Model Pressure bonding tool

Phoenix Contact AI 0.5-8WH

CRIMPFOX 6

(or CRIMPFOX 6T-F*2)

Manufacturer Model

Phoenix Contact SZS 0.4

×2.5

WIRING PRECAUTIONS

9mm

(0.36")

Termination of

cable end

8mm

(0.32")

Contact area (Crimp area)

14mm(0.56")

2.6mm (0.11")

Insulating sleeve

0.4mm (0.02")

2.5mm (0.1")

With straight tip

3.2.1 NPN output encoders

3.2.2 PNP output encoders

*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 FX

2NC

-1HC, connect to the power supply terminal. When using 24V DC for PRESET and DISABLE signal s, connect to the 24V DC (XP24, XD24) terminal.

*3. This wiring is unnecessary when not using the PRESET function and the

DISABLE function.

Encoder (NPN)

+24V

DC24V

Phase

Class D

Shielded

Twisted-Pair

Shielded

Twisted-Pair

PRESET

DISABLE

A24+

A12+

A 5+

A -

3.3k

1.5k

0.27k

0.1k

B24+

B12+

B 5+

B -

3.3k

1.5k

0.27k

0.1k

XD24

XD 5

COMD

1.5k

0.5k

0.2k

XP24

XP 5

COMP

1.5k

0.5k

0.2k

2NC

-1HC

2NC

3UC

*2. Grounding resistance 100 Ω or less.

Encoder (PNP)

+24V

DC24V

Phase

Class D

Shielded

Twisted-Pair

Shielded

Twisted-Pair

PRESET

DISABLE

A24+

A12+

A 5+

A -

3.3k

1.5k

0.27k

0.1k

B24+

B12+

B 5+

B -

3.3k

1.5k

0.27k

0.1k

XD24

XD 5

COMD

1.5k

0.5k

0.2k

XP24

XP 5

COMP

1.5k

0.5k

0.2k

2NC

-1HC

2NC

3UC

Phase

*1. Drive power supply of the encoder. Use either 24V DC, 12V DC, or 5V DC according to the encoder t ype. When connecting the A phase, the B phase, and the Z phase to FX

2NC

-1HC, connect to the power supply terminal. When using 24V DC for PRESET and DISABLE signals, connect to the 24V DC (XP24, XD24) terminal.

*3. This wiring is unnecessary when not using the PRESET functi on and the

DISABLE function.

*2. Grounding resistance 100 Ω or less.

3.2.3 Differential-Line-Driver output encoders

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

2NC-1HC, connect the encoder output with the 5V DC terminal as shown in the left

figure.

3.2.4 YH, YS output wiring [Sink wiring]

3.2.5 YH, YS output wiring [Source wiring]

4. Specifications

DESIGN PRECAUTIONS

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 en sure 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

Encoder

Class D

Shielded

Twisted-Pair

2NC

-1HC

2NC

3UC

A 5+

A -

0.27k

0.1k

B 5+

B -

0.27k

0.1k

XD 5

COMD

0.5k

0.2k

+5V

DC5V

LAR

LBR

XP 5

COMP

0.5k

0.2k

PRESET

Shielded

Twisted-Pair

*1. Grounding resistance 100 Ω or less.

*2. This wiring is unnecessary when not using the PRESET function and the

DISABLE function.

DISABLE

YH+

YH-

YS+

YS-

Output load driving power, 5 - 24V DC

2NC

-1HC

Fuse

YH+

YH-

YS+

YS-

Output load driving power, 5 - 24V DC

2NC

-1HC

Fuse

4.1 G eneral Specifications

The general specifications are equivalent to the PLC main unit. (For general specifications, refer to the manual of the PLC main unit.)

4.2 Power Supply Spec ifications

4.3 Performance Specifi cations

Item Specifications

Units driving power

5V DC, 90mA (Internal power supply from main unit or extension power supply unit)

Item

Specification

Input signal

Signal level (Selected by terminal connection)

Phase A, Phase B

[A24+], [B24+]

24V DC±10%, 7mA or less

[A12+], [B12+]

12V DC±10%, 7mA or less

[A5+], [B5+]

3.0V to 5.5V DC,

12.5mA or less

PRESET, DISABLE

[XP24], [XD24]

10.8V to 26.4V DC, 15mA or less

[XP5], [XD5]

5V DC±10%, 8mA or less

MAX. frequency

1-phase input

1 input

50kHz2 input

2-phase input

1 edge count

2 edge count 25kHz

4 edge count 12.5kHz

Pulse shape

t1(Rise/fall time): 3μs or less t2(ON/OFF pulse): 6μs or more (at 50kHz) t3(Phase difference between A and B):

3.5μs or more (at 50kHz) PRESET(Z phase) input 100μs or more DISABLE (count prohibit) input 100μs or more

Counting specification

Format

Automatic UP/DOWN However, when on 1-phase 1-input mode, UP/ DOWN is determined below.

• 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.

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.)

Comparison Type

time of 300μs. Therefore, when the input frequency is 50 kHz, there is a worst case delay of 15 input pulses.

Output signal

Types of outputs

YH +: transistor output for

YH output

YH -: transistor output for

YH output

YS +: transistor output for

YS output

YS -: transistor output for YS output

Output capacity

5V ~ 24V DC, 0.5A

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

t1 t1

YH+, YS+

YH-, YS-

FX2NC-1HC

USER'S MANUAL

Effective April 2015 Specifications are subject to change without notice.

Manual Number JY997D30701

Revision C

Date April 2015

Warranty

For safe use

•

HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

5. Buffer Memories (BFM)

5.1 Buffer memory List

Note;

5.2 Details of buffer memories

5.2.1 Counter mode [BFM #0]

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

Note;

BFM # Description Default

BFM

Access

BFM #0 Counter mode (Setting range: K0 to K11) K0 R/W

BFM #1

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

K0 R/W

BFM #2

Ring length

Lower

K65536

R/W

BFM #3 Upper R/W

BFM #4 Command K0 R/W

BFM #5 ~ #9

Not available - -

BFM #10

Preset data

Lower

R/W

BFM #11 Upper R/W

BFM #12

YH compare value

Lower

K32767

R/W

BFM #13 Upper R/W

BFM #14

YS compare value

Lower

K32767

R/W

BFM #15 Upper R/W

BFM #16 ~ #19

Not available - -

BFM #20

Counter current value

Lower

R/W

BFM #21 Upper R/W

BFM #22

Maximum count value

Lower

R/W

BFM #23 Upper R/W

BFM #24

Minimum count value

Lower

R/W

BFM #25 Upper R/W

BFM #26 Com pare results - R

BFM #27 Terminal status - R

BFM #28 Not available - -

BFM #29 Error status - R

BFM #30 Model i dentification code: K4010 K4010 R

BFM #31 Not available - -

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

b) 16-bit counter modes

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)

If both phase A and phase B inputs are received simultaneously, the counter value does not change.

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 (BFM #3, #2) - 1

Phase A

Phase B

Phase B input ON

→

OFF while phase A input ON Count down by 1.

Phase B input OFF

→

ON while phase A input ON Count up by 1.

+1+1 -1-1

Phase A

Phase B

Phase B input OFF

→

ON while phase A input ON Count up by 1.

+1+1

Phase B input ON

→

OFF while phase A input ON Count down by 1.

-1-1

DOWN COUNT

Phase A

Phase B

UP COUNT

+ 1

-1-1 -1-1

Phase A

Phase B

Phase A input-1 at OFF

→

Phase B input+1 at OFF

→

OFF

10323321

OFF

Phase A

Phase B

Current value

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

UP DOWN

ONOFF

OFF

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

5.2.2 DOWN/UP command [BFM #1]

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. (Default value: K0)

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

5.2.3 Ring length [BFM #3, #2]

When ring length K100 is specified, the current value of the counter is changed as the right figure, and upper limit value is set to 99.

5.2.4 Command [BFM #4]

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, YH (hardware compared output) does not turn ON.

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

4) When b3=ON, YS output is reset if YH output is set, and YH output is reset if YS output is set. When b3=OFF, YH and YS output act independently, and do not reset each other.

5) When b4=OFF, preset function by the PRESET input terminal is disabled.

→ For the preset details, refer to Subsection 5.2.5

6) When b8 is set to ON, all error flags are reset.

7) When b9 is set to ON, YH output is reset.

8) When b10 is set to ON, YS output is reset.

9) When b11 is set to ON, YH output is set ON.

10)When b12 is set to ON, YS output is set ON.

Count Direction Setting Value

Up count K0

Down count K1

Bit No.

Setting Value

OFF (0) ON (1)

b0 Count prohibit Count permit

b1 YH output prohibit YH output permit

b2 YS output prohibit YS output pe rmit

b3 YH/YS independent action Mutual reset action

b4 Preset prohibit Preset permit

b5 ~ b7 Not available

b8 No action Error flag reset

b9 No action YH output reset

b10 No action YS output reset

b11 No action YH output set

b12 No action YH output set

b13 ~ b15 Not available

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

BFM #1

Phase B

Current value

DOWN

K1K0

OFF

FNC 79

DTO

K100K2 K2 K1

X002

DOWN

10 9899

9998 0 1

Example program

5.2.5 Preset data [BFM #11, #10]

When BFM #4 b4 is ON and the PRESET input is switched from OFF to ON, preset data is stored into BFM #21, #20 (counter current value).

→ For command details, refer to Subsection 5.2.4

5.2.6 YH compare value [BFM #13,#12], YH compare value [BFM #15,#14]

• After comparing the current value of the counter with the value written in BFM #13 and #12, BFM #15 and #14, the hardware and software comparator in the FX

2NC-

1HC outputs the comparison result.

• Y H, YS output will not turn ON if using PRESET or the TO instruction to set the counter value equal to the comparison value. It will turn ON only when a match occurs by the counting of input pulses. However, when BFM #4 b1, b2 are OFF, it does not set.

• Outpu t occurs when the current value becomes equal to the compare value but only if b1 and b2 of BFM #4 are ON. Once an output is set, it remains ON until it is reset by b9 or b10 of BFM #4. If b3 of BFM #4 is ON, however, one of the outputs is reset when the other is set.

• The YS comparison operation takes about 300μs, and if a match occurs, the output goes ON.

5.2.7 Counter current value [BFM #21, #20]

5.2.8 Maximum count value [BFM #23, #22], Minimum count value [BFM #25, # 24]

These store the maximum and minimum value reached by the counter. If the power is turned off, the stored data is cleared.

5.2.9 Compare results [BFM #26]

Bit No.

Targe t output

OFF (0) ON (1)

Set value ≤ current value Set value > current value

b1 Set value ≠ current value Set value = current value

b2 Set value ≥ current value Set value < current value

Set value ≤ current value Set value > current value

b4 Set value ≠ current value Set value = current value

b5 Set value ≥ current value Set value < current value

b6 ~ b15 Not available

FNC 79

DTO

K4M10K2 K4 K1

M8000

X004

X005

M8000

M10 M14

Count allowed, YH/YS Output allowed, Mutual reset, Preset allowed

RUN monitor

M18 Error flag reset

M19 M20 YH YS output reset

BFM #4 b9,b10

Setting value

urrent

alue

Coincidence output

Setting value

Cur

rent

valu

BFM #4 b9,b10

Coincidence output

5.2.10 Terminal status [BFM #27]

5.2.11

Error status [BFM #29]

Error status in the FX2NC-1HC can be checked by reading the contents of b0 to b9 of BFM #29 to auxiliary relays of the PLC. There error flags can be reset by b8 of BFM #4.

5.2.12 Model identification code [BFM #30]

This BFM stores the identification number for FX2NC-1HC. The identification number for the FX

2N-1HC unit is K4010.

By reading this identification number, the user may create built-in checking routines to check whether the physical position of the FX

2NC-1HC matches to that

of the software.

6. Example Program

Please use the following program as a guide whenever you use the FX2NC-1HC unit. Other instructions to read the current value of the counter, status etc. can be added as required.

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

b0 PRESET input OFF ON

b1 DISABLE input OFF ON

b2 YH output OFF ON

b 3 YS output OFF ON

b 4 ~ b15 Not available

Bit N0. Error Status

b0 Set when any of b1 to b7 is ON.

Set when the value of the ring length is written incorrectly. (Except K2 to K65,536)

Set when the preset value is written incorrectly.

When value ≥ ring length in 16-bit counter mode.

Set when the compare value is written incorrectly.

Set when the current value is written in correctly.

Set when the counter overflows the upper limit.

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

Set when the counter overflows the lower limit.

b7 Set when the FROM/TO command is used incorrectly.

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

Except K0 to K11

Set when the BFM number is written incorrectly.

Except K0 to K31

b10 ~ b15 No t available

FNC 78

FROM

K3M100K2 K29 K1

M8000

M8002

Initial

pulse

FNC 79

K11K2 K0 K1

K11 is written into BFM #0 of special function block No.2. The counter input is 16-bit 1-phase. Please use a pulse command for this initialization.

FNC 79

DTO

K1234K2 K2 K1

K1234 → BFM #3, #2 (special function block No.2) The ring length can be specified when a 16-bit counter is specified.

FNC 79

K1K2 K1 K1

UP/DOWN direction should be specified for 1-phase 1-input software determined UP/DOWN counter.

FNC 79

DTO

K1000K2 K12 K1

K1000 → BFM #13, #12 Set the compare value for YH output.

7. Preliminary checks

1) Check that the I/O wiring and extension cable of the FX2NC-1HC are properly connected.

2) The FX

2NC-1HC occupies 8 points of I/O on the FX2NC, FX3UC expansion bus.

The 8 points can be allocated from either inputs or outputs. 5V DC 90mA power is supplied from the main or extension power supply units (FX

3UC only) for the FX2NC-1HC. Check that there is no power overload from this

and other extension blocks.

3) The following derating curve shows the simultaneous ON ratio of available power for products connected to the FX

2NC-1HC with respect to the ambient

temperature. Use the adjoined following product within the simultaneous input ON ratio range shown in the figure.

Target input extension block:FX

2NC-16EX, FX2NC-16EX-DS,

2NC-32EX, FX2NC-32EX-DS

Note

Note that inputting the pulse higher than the maximum frequency may cause miscounting to FX

2NC-1HC or a FROM/TO error to the PLC main unit.

M8000

M11 M13

FNC 79

DTO

K900K2 K14 K1

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

Count allowed

Output allowed, Mutual reset

Preset allowed

Error flag reset

YH output reset

YS output reset

X010

M10

X011

M14

X012

PLS

M18

X013

PLS

M19

PLS

M20

RUN

monitor

FNC 79

K4M10K2 K4 K1

FNC 78 DFROM

D2K2 K20 K1

(M25 to M10) → BFM #4 (b15 to b0) command

BFM (#21, #20)

→

Reads the current value to the data registers D3 and D2.

Derating curve: FX

2NC

-16EX(-DS), FX

2NC

-32EX(-DS)

Simultaneous ON ratio

100%

45°C

60%

55°C Ambient temperature

Supply voltage:24V DC

8. Diagnostics

1) The following LEDs on the main panel of the FX2NC-1HC may help you to troubleshoot the unit.

a) φA, φB:

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

b) UP, DN:

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

c) PR, DS:

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

d) YH, YS:

The appropriate LED lights up when YH/YS output is turned on.

2) You can check the error status by reading the content of BFM #29 to the PLC.

→ For error contents, refer to the Subsection 5.2.11

STARTUP AND MAINTENANCE PRECAUTIONS

• Do no t disassemble or modify the PLC. Doing so may cause fire, equipment failures, or malfunctions. * For repair, contact your local Mitsubishi Electric distributor.

• Do no t drop the product or exert strong impact to it. Doing so may cause damage.

DISPOSAL PRECAUTIONS

• P lease 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.

9. System Blo ck Diagram

BFM #4 b1

16-bit counter

1-phase 1-input counter

ØB

ØA

DISABLE

PRESET

Preset data

BFM#11, #10

Model code

BFM #30

Maximum value

BFM #23, #22

Minimum value

BFM #25, #24

Error status

BFM #29

Comparisor data

BFM #13, #12

Comparision data

BFM #15, #14

Compare results

BFM #26

Terminal status

BFM #27

ØZ

Direct initialization

Count start

BFM#4 b4

DOWN/UP

Counter

16/32-bit

1-phase/2-phase

Current value

BFM #21, #20

Reset BFM #4 b8

for YH output

Matched

for YS output

Sampling cycle 300

Comparison is made at the next sampling point after an input count.

Matched

BFM #4 b11

BFM #4 b9

BFM #4 b2

BFM #4 b12

BFM #4 b10

Count pulse

BFM #4 b0

BFM #4 b3

Counter mode

BFM #0

Ring upper limit value

BFM #3, #2

DOWN/UP command

BFM #1

Initialization

Mitsubishi Electric MELSEC-F FX2NC-1HC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual