Mitsubishi Electric FX2N-1HC User Manual

FX2N-1HC SPECIAL FUNCTION BLOCK

USER’S GUIDE

JY992D65401C

This manual contains text, diagrams and explanations which will guide the reader in the correct installation
and operation of the FX
to install or use the unit.
Further information can be found in the FX PROGRAMMING MANUAL and FX
MANUAL.

1. INTRODUCTION

-1HC special function block and should be read and understood before attempting

2N

SERIES HARDWARE

2N

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

2N

2NC

, FX

series PLC. The FX2N-1HC counts at a higher speed than the built-in high­speed counter of the PLC (2-phase 30 kHz, 1-phase 60 kHz) and performs comparisons and outputs
directly.

• 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

-1HC unit to run only after setting these mode parameters.

2N

• 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

-1HC has two outputs. When the counter value coincides with an output compare value, the

2N

appropriate output is set ON. The output transistors are individually isolated to allow either sink or
source connection methods.

• Data transfer between the FX
buffer memories (each of 16 bits) in the FX

• The FX

-1HC occupies 8 points of I/O on the FX2N, FX

2N

-1HC and the FX2N PLC is by buffer memory exchange. There are 32

2N

2N

-1HC.

2NC

expansion bus. The 8 points can be allo-

cated from either inputs or outputs.

1.1 External dimensions

Mass (weight): Approx. 0.3 kg (0.66 lbs) Dimensions: mm (inches)
Accessories: Self-adhesive labels special block number identification.

A12+

A -

B12+

B -

XD5

COMD

COMP

YH-

YS-

A24+

A5+

B24+

B5+

XD24

XP24

YH+XP5

YS+

55(2.17)

8

FX2N-1HC

11

9

B12+

A12+

A -

A24+

A5+

B24+

55(2.17)

POWER

UP

DOWN

A

ø

øB

DIS

PRE

YH

YS

3
4
5
6

7

11

12

13

14
15

87(3.43)

4(0.16)

2

1

17

90(3.54)

80(3.15)

16

1

Mounting hole 2-φ4.5 (0.18)

2

Extension cable and connector

3

UP LED

4

DN (Down) LED

5

A LED

φ

6

B LED

φ

7

POWER LED

8

A, φB terminal (M3 (0.12) screws)

φ

9

PRESET terminal (M3 (0.12) screws)

<Using the solderless termination>

6.2mm
(0.24 inches)
or less

6.2mm
(0.24 inches)
or less

FOR M3
(0.12 inches)

(0.16)

4

10

YHxYS terminal (M3 (0.12) screws)

11

DISABLE terminal (M3 (0.12) screws)

12

DIS (DISABLE) LED

13

PRESET LED

14

YH LED

15

YS LED

16

DIN rail clip

17

Attachment groove for 35 (1.38) wide DIN rail

10

• Use crimp terminals of the dimensions specified in the left figure.

• Secure the terminals using a tightening torque of 0.5 to 0.8 Nxm
(5 to 8 kgxcm).

• Wire only to the module terminals discussed in this manual.
Leave all others vacant.

2. WIRING

PNP output encoders

PNP output encoders

Phase A

Phase B

Phase Z

+24V

External power source
DC5V,12V,24V

OUT

OUT

OUT

COM+24V

0 V

ØA

ØB

PRESET

DISABLE

START

Class 3
grounding

:

(<100 )

Shielding Wire

Shielding Wire

Shielding Wire

Shielding Wire

*2

PLC

Extension
cable

3.3k

A24+
A12+

A5 +

A ­B24+
B12+

B5 +

B -

XP24

XP 5

COMP

XD24

XD 5

COMD

FX2N-1HC

1.5k

0.27k

0.1k

12 to 24V inputtable

1.5k

0.5k

0.2k

12 to 24V
inputtaable

*1. " " is an external load
connected with the out put.
*2. Connect the grounded terminal
at the PLC side as required.

2.2kW

2.2kW

:source
:sink

YH+

YH-

YS+

YS-

Power supply for out put
load drive DC5 to 24V

*1

*1

*1

*1

+24V

0 V

If using on NPN output encoder please take care to match the polarity of the terminals of the
encoder to those of the FX

2N

-1HC.

Line driver output encoders

Line driver output encoders

LA

LAR

LB

LBR

Shielding Wire

FX2N-1HC

A5+

A -

B5+

B -

3. SPECIFICATIONS

3.1 Environmental specifications

Item Specification

Environmental specifications (excluding following)

Same as those for the FX

Dielectric withstand voltage 500V AC, 1min (between all terminals and ground)

3.2 Performance specifications

Item

Signal level

Input signal

MAX. frequency 50 kHz 25 kHz 12.5kHz

Pulse shape

Format

Range

Counting
specification

Comparison
Ty p e

Output
signal

Types of
outputs

Output capacity 5V to 24V DC 0.5A

I/O occupation 8 points taken from the FX

Power from base 5V DC 90mA(Internal power supply from main unit or powered extension unit)

1-phase input 2-phase input

1 input 2 inputs 1 edge count 2 edge count 4 edge count

Phase A, Phase B [A24+],[B24+] :24V DC±10% 7mA or less

PRESET,DISABLE [XP24],[XD24] :10.8V to 26.4V DC 15mA or less

(Selected by terminal connection)

t1 t1

t2

t3

Automatic UP/DOWN (however, when on 1-phase 1-input mode, UP/DOWN is
determined by a PLC command or an input terminal.)

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 can be user specified)

Each output is set when the present value of the counter matches with the
compare value (which is transferred from the PLC), and is switched OFF by a
reset command from the PLC.

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.)

YH +:transistor output for YH output
YH −:transistor output for YH output
YS +:transistor output for YS output
YS −:transistor output for YS output

[A12+],[B12+] :12V DC±10% 7mA or less
[A5+],[B5+] :3.5V to 5.5V DC 10.5mA or less

[XP5],[XD5] :5V DC±10% 8mA or less

t1 :Rise/fall time is 3ms or less
t2 :ON/OFF pulse duration 10µs or more
t3 :Phase difference between phase A and

t2

t3

phase B is 3.5ms or more

PRESET(Z phase) input 100µs or more
DISABLE (count prohibit) input 100ms or more

2N

expansion bus (can be either inputs or outputs)

main unit

2N

NPN

YH+
YS+

YH­YS-