background image

OM

RO

N C

or

po

ra

ti

on

CO

UN

TE

R

H7

BX

-A

MA

DE

 IN

 C

HI

NA

Lo

No

X

Operating Procedures

Basic parameters can be set using the DIP switch. 
Perform               if the desired input or output mode is not given in the 
following table or if all parameters will be set by using the front-panel keys. 

Setting for Counter Operation (1-stage/2-stage Counter, Total and Preset Counter, Batch Counter, Dual Counter)

Basic parameters can be set using the DIP switch. 
Perform              if all parameters will be set by using the front-panel keys.
Refer to the table on the left for DIP switch pin positions and precautions 
for correct use. 

Using a Tachometer

Output Modes

N

F

C

R

n

f
c
r

k-1

p
q
a

K-1

P

Q

A

k-2

d
l
h

K-2

D

L

H

Thank you for purchasing this OMRON product. To ensure 
safety and correct use, read this English Instruction 
Manual and be sure you sufficiently understand the 
information provided before attempting to use the H7BX. 
Keep this Instruction Sheet close at hand and use it for 
reference during operation. 

Caution

Indicates a potentially hazardous situation which, 
if not avoided, may result in minor or moderate injury 
or in property damage.

Minor injury due to electric shock may occasionally occur. Do 
not touch any of the terminals while power is being supplied.

© OMRON Corporation 2007  All Rights Reserved. 

1651863-2A

 Definition of Precautionary Information

Fire may occasionally occur. Tighten the terminal screws to 
a torque of 0.5 to 0.6 N

m (4.4 to 5.3 in-lb). 

Minor injury due to explosion may occasionally occur. Do not 
use the Counter where subject to flammable or explosive gas.   

If the output relay is used beyond its life expectancy, its 
contacts may become fused or there may be a risk of fire. 
Use the output relay within its rated load and electrical life 
expectancy. The life expectancy of the output relay varies 
considerably according to its usage. 
Minor electric shock, fire, or malfunction may occasionally 
occur. Never attempt to disassemble, modify, or repair the 
Counter or touch any of the internal parts.

 Precautions

Safety Precautions

Caution

Precautions for Safe Use

Precautions for Correct Use

Conformance to EN/IEC Standards

Specifications

Front Panel Nomenclature

Counter and Panel Cutout Dimensions

Terminal Arrangement

Displays and Settings in Run Mode

KP-1

KP-2

KP-3

KP-4

KP-5

Not possible

Not possible

Not possible

Not possible

Not possible

Possible

Possible

Possible

Possible

Not possible

Possible

Not possible

Possible

Not possible

Not possible

Possible

Level

Changing mode 

(See note.)

Switching display 

in Run Mode

Reset Key

Up/down Key

Possible

Not possible

Not possible

Not possible

Key Protection Settings

Self-diagnostic Function

Note: Changing from Run Mode to Configuration Selection Mode or Function Setting Mode. 

Present 

value 

display

Set

value 

display

Error

Output 

status

Correction method

Set 

value 

after reset

No 
change

No 
change

Not lit

Not lit

sum

e2

e2

e1

Present value 
underflow

Present value 
overflow

CPU error

Memory error 
(RAM)

Memory error 
(EEPROM)

No 
change

No 
change

OFF

OFF

OFF

Either press the Reset Key 
or turn ON the reset input.

Either press the Reset Key 
or turn ON the reset input. 
(See note 2.)

Either press the Reset Key 
or reset the power supply.

Reset the power supply. 

No 
change

No 
change

No 
change

No 
change

0

ffffff

(See note 1.)

------

(See note 1.)

Note 1: Display flashes.

When the key protection input is ON, it is possible to prevent setting 
errors by prohibiting the use of certain operation keys by specifying the 
key protection level in the Configuration Selection Mode.

For details, refer to the H7BX Digital Counter Datasheet (Cat. No. M077).

Step2

Step3

Step3

Step2

Note: All of the pins are factory-set to OFF. 

Note: All of the pins are factory-set to OFF. 

Step3

Step3

Step1

Step2

Step1

Configuration Selection Mode

MODE

123456

200000

SET1

123456

280000

SET2

123456

234567

SET

MODE

123456

234567

SET

345678

TOTAL

MODE

987654

994567

SET

352423

635289

       1  2

MODE

MODE

MODE

MODE

18

24

SET

613

1000

BATCH

2280. 00

2280. 00

2300. 00

SET1

SET  2

2280. 00

2000. 00

Precautions for Correct Use

OMRON Corporation

 Operating Environment

• The Counter is intended for indoor use only. Do not use the Counter
  outdoors or in any of the following locations. 

• Locations subject to sudden or extreme changes in temperature.
• Locations where high humidity may result in condensation.
• Locations subject to direct sunlight.
• Locations subject to corrosive gas.
• Locations subject to excessive dust or dirt. 

• This is a class A product (for industrial environments). In residential
   areas, it may cause radio interference, in which case the user may be
   required to take adequate measures to reduce interference.

• Use the Counter within the specified ratings for operating temperature
   and humidity. Temperature rise may shorten the service life of the Counter
   if it is used near a power supply or other heat-generating objects.
• Use the Counter within the specified ratings for vibrations, shock, and
  splashing water.

• The Counter is not oil resistant. Do not use it in locations subject to oil.

• Install the Counter well away from any sources of excessive static
  electricity, such as pipes transporting molding materials, powders, or
  liquids.

• Store the Counter within the specified ratings. If the Counter has been 

stored at temperatures of 

10

°

C or lower, let it stand for 3 hours or longer 

at room temperature before turning ON the power supply.

 Power Supply

• Maintain voltage fluctuations in the power supply within the specified
  range.

• Internal elements may be destroyed if a voltage outside the rated voltage
  is applied.

• When the power is turned ON, an inrush current will flow for a short time 

(approx. 

@

.

@

 A for 

@

.

@

 ms). Depending on the power supply capacity, 

operation may not start. Be sure to use a power supply with a sufficient 
capacity.

• Use a commercial power supply as the AC power supply for the Counter.
  Using an inverter output with an output frequency of 50/60 Hz as the
  power supply may cause the Counter to produce smoke or become
  damaged by burning. 

• Use a switch, relay, or other device with contacts so that the rated power 

supply voltage will be reached within 2 s. If the power supply voltage is 
not reached quickly enough, the outputs may malfunction.

• Use a switch, relay, or other device with contacts to turn the power supply 

OFF instantaneously. Outputs may malfunction and memory errors may 
occur if the power supply voltage is decreased gradually. 

 Installation and Wiring

• To mount the Counter to a panel, attach the two supplied brackets to the
  left and right sides of the Counter, and securely tighten the knurled 
  screws on the brackets by hand, maintaining a balance between them. 
  Damage may result if the knurled screws are excessively tightened 
  with pliers or other tools.

• Be sure to wire the terminals correctly. 

• Up to two wires of the same size and type can be inserted into a single
  terminal.

• Do not connect more than two crimp terminals to each Counter terminal.

• Use the specified wires for wiring.
  Applicable wire: AWG 24 to AWG 18 
                            (equal to a cross-sectional area of 0.20 to 0.82 mm

2

)

                            Solid wire or twisted wire (copper) 

• Separate the Counter, the devices that generate input signals, and input 

signal wires from any potential sources of noise, such as high-voltage 
lines.  

 Handling

• Do not use organic solvents (such as paint thinner or benzine), 
  strong alkaline, or strong acids because they will damage the 
  external finish.

• Approximately 14 V will be output to the input terminals when the 
  Counter is used with the key protection input terminals and no-voltage 
  input (NPN input) are used. To prevent charging accidents, connect  
  a diode to the power supply circuit of input devices if input devices are 
  used with a power supply of less than 14 V.

• Do not connect loads that exceed the rated output current. The 
  output elements may be destroyed, possibly resulting in short-circuit 
  or open-circuit faults.

• When using heaters, be sure to use a thermal switch for the load circuit.

• Always connect a diode to protect against counter electromotive 
  force when using an inductive load. Counter electromotive force may 
  destroy output elements, possibly resulting in short-circuit or open-
  circuit faults.

• Install a switch or circuit breaker that allows the operator to immedia-
  tely turn OFF the power, and label it to clearly indicate its function.

• Check that the display (backlight and LCD) is operating normally. 
  Some operating environments may accelerate deterioration of the 
  indicators, LCD, and resin components and cause display malfunctions. 
  Periodically inspect and replace parts.

• Inrush current generated by turning ON or OFF the power supply may 

deteriorate contacts in the power supply circuit. Turn ON or OFF using 
a device with a rated current of 10 A or higher.

• Inputs signals may be accepted, not accepted, or unstable for the
  following times when the power supply is turned ON or OFF. 
  Set the system to allow leeway in the timing of input signals.

• This Counter always compares the count value with the set value. Thus, 

if you change the set value during operation, please remember that the 
output will turn ON when the set value becomes equal to the count 
value.

• With the factory setting, the output will turn ON when power is supplied 

to the Counter because the set value and count value are both zero. 
During resetting, however, the output stays OFF. 

• EEPROM is used as memory when the power is interrupted. The write
  life of the EEPROM is 100,000 writes. The EEPROM is written when
  settings are changed, or the power is tuned OFF.

• Water resistance will be lost if the front sheet is peeled off or torn. 
  Do not use the Counter if the front sheet is missing or torn.

• Abide by all local ordinances and regulations when disposing of 
  the Counter.

• Be sure to turn OFF the power supply  
  before changing the DIP switch.
 • Set pin 1 to ON (enabled) to set functions 
   using the DIP switch. 
 • The DIP switch settings will be read 
   when the power supply is turned ON.
    Make the switch settings before installing 
   the Counter and supplying power. 
• Correctly set the DIP switch according 
   to the items to be counted (measured)
   and check the settings by using the DIP
   switch monitor. 

2: The tachometer will reset automatically. 

SUITABILITY FOR USE

You must allow sufficient leeway in ratings and performance and provide
proper fail-safe and other safety measures when using the Unit in any of
the following applications. Be sure also to consult with your OMRON
representative before actually attempting any of these applications.

1. Applications under conditions or environments not specified in user 
    manuals.

2. Applications for nuclear reactor control, train facilities, aviation
    facilities, motor ized vehicles, fur naces, medical equipment,
    amusement equipment, and safety equipment.
  

3. Applications strongly related to human life or property, particularly
    those requiring safety.

OMRON Corporation Control Device 
Division H.Q. 
Shiokoji Horikawa, Shimogyo-ku, 
Kyoto, 600-8530 Japan 
Tel: (81)75-344-7109 Fax: (81)75-344-7149 

Regional Headquarters
 
OMRON EUROPE B.V.
 
Wegalaan 67-69, NL-2132 JD Hoofddorp 
The Netherlands 
Tel: (31)2356-81-300 
Fax: (31)2356-81-388

OMRON ELECTRONICS LLC 
1 East Commerce Drive, Schaumburg, 
IL 60173 U.S.A 
Tel: (1)847-843-7900 
Fax: (1)847-843-8568 
OMRON ASIA PACIFIC PTE. LTD. 
83 Clemenceau Avenue, 
#11-01, UE Square, 
Singapore 239920 
Tel: (65)6835-3011 
Fax: (65)6835-2711 
OMRON (CHINA) CO., LTD. 
Room 2211, Bank of China Tower, 
200 Yin Cheng Zhong Road, 
PuDong New Area, Shanghai, 
200120 China 
Tel: (86)21-5037-2222 

Note: 
Specifications subject to change without notice. 
Printed in Japan

Parameters that cannot be set with the DIP switch are set with the 
front-panel keys. 
1. Switch the operation mode to configuration selection mode. 

Power supply, input, and output terminals have basic insulation between 
them. When double insulation is required, apply supplemental insulation 
defined in IEC 60664 that is suitable for the maximum operating voltage 
with clearances or solid insulation.

 • Do not connect unused terminals as relay terminals.

 Counter Dimensions

 Panel Cutout Dimensions

Panel cutouts are as shown below.
(according to DIN 43700)

Note: The mounting panel thickness should be 1 to 5 mm.

H7BX-A

H7BX-AW

H7BX-AD1

H7BX-AWD1

This Counter includes multiple counting functions. If the Counter is to be 
used with a configuration other than the factory-set configuration given in 
the table on the right, enter the Configuration Selection Mode shown in the 
diagram on the right, and set the configuration to match the application.

The settings in 

Package Contents
 • Counter 
 • This Instruction Sheet 
 • Two mounting brackets
 • Terminal cover

can be made before making the settings

in                .

2. Set the parameters.
If pin 1 of the DIP switch is turned ON, the shaded setting items will not 
be displayed.

Note: The characters displayed in 
reverse video are the default settings. 

Output mode

Counting speed

Decimal point 
position

Reset input 
signal width

Prescale value

Key Protection
Level

2. Set the parameters.
If pin 1 of the DIP switch is turned ON, the shaded setting items will not be displayed.

Note: The characters displayed in reverse video are the default settings. 

pnp

PNP input

NPN input (including two-wire sensor)

npn

0.001 to 

1.000 

 to 99.999

0.01 to  

0.50  

to 99.99 (s)

down
ud-a

ud-b
ud-c

DOWN
UP/DOWN A
UP/DOWN B
UP/DOWN C

UP

up

kp-2

kp-3
kp-4

kp-5

Key protection level 2
Key protection level 3
Key protection level 4
Key protection level 5

Key protectionn level 1

kp-1

red

grn
r-g

g-r

Red (fixed)

Green (fixed)

Control output OFF

Control output ON

Red

Green

Green

Red

5khz

5 kHz

30 Hz

1 ms

20 ms

30hz

1ms

20ms

Present value 
display color 
selection

NPN/PNP Input 
Mode

Input mode
(See note 1.)

One-shot output 
time (See note 2.)

Refer to the table on the lower right. 

cntm

  up

MODE

MODE

outm

   n

MODE

otim

0.50

MODE

cnts

30hz

MODE

iflt

20ms

MODE

  dp

------

MODE

pscl

MODE

imod

MODE

kypt

kp-1

MODE

colr

 red

 npn

MODE

1.000

When using a 2-stage counter:

One-shot output 2 time

One-shot output 1 time
* If the output time is 0.00, 

hold

 is displayed.

When using a batch counter:

One-shot output 2 time

add

 : CP1 +  CP2

sub

 : CP1  

 CP2

Dual Count 
Calculating Mode

1. The following will be displayed when a dual counter is used.

2. The output time is displayed only when the output mode 
    is C, R, K-1, P, Q, A, or K-2.
    The following will be displayed when a 2-stage counter 
    or batch counter is used. 

otm2

0.01

otm1

hold

otm2

0.01

calm

 add

OFF

ON

Power
supply

0 to 90 ms

5 ms

0 to 1 s

Input

Impossible

Possible

Un-

stable

Unstable

0

20

10.8

15

100

Load 
current 
(mA)

Power supply voltage (VDC)

ON 1

2

3

4

DIP switch

5

6

7

8

MODE

MODE

MODE

MODE

MODE

MODE

MODE

MODE

MODE

MODE

Tachometer 
Output Mode

Counting speed

Average 
processing

Auto-zero time

Startup time

0.1 to 

 99.9

  s

0.0

  to 99.9 s

  

area

hihi
lolo

hilo

2

4
8

off

Average of 2 measurements
Average of 4 measurements
Average of 8 measurements

No average processing

-----.....-

----.....--

---.....---

------

totm

hilo

cnts

30hz

  dp

------

pscl

 a?g

 off

autz

stmr

imod

kypt

kp-1

colr

 red

 npn

0.0

99.9

1.000

pnp

npn

10khz

10 kHz

30 Hz

30hz

Run Mode

DIP switch monitor

Power ON

MODE

+

Hold down for 
1 s min. 

func

1cnt

dip

off

MODE

Configuration 
Selection Mode

1

Select the configuration using 
keys  1  to  6 . 

Configuration 
selection mode

Power ON

Hold down for 3 s min.

Run mode

MODE

 

MODE

-----.....-

----.....--

---.....---

------

No decimal point
One digit after decimal point
Two digits after decimal point
Three digits after decimal point

 

Measurement
value

Comparison 
value 1

Measurement
value

CP1 present value

CP2 present value

• 1-stage Counter

• 2-stage Counter

• Total and preset counter

• Batch counter

• Dual Counter

• Tachometer

Present value

Set value

Total count value

Dual count value

Dual count set value

Batch count value

Batch count set 
value

Impossible

Key 
protection

Key 
protection

When pin 1 of the DIP switch is turned ON (enabled), the
status of the DIP switch pins (1 to 8) can be checked by 
using keys  1  to  6 .

Note:

Parameters that cannot be set with the DIP switch are set with the 
front-panel keys. 
1. Switch from Run Mode to Configuration Selection Mode. 

Configuration 
Selection Mode

Power ON

Hold down for 3 s min.

Run Mode

Upper and lower limit

Area

Upper limit
Lower limit

Decimal point 
position

No decimal point
One digit after decimal point
Two digits after decimal point
Three digits after decimal point

Prescale value

0.001 to 

1.000 

 to 99.999

PNP input

NPN input (including two-wire sensor)

NPN/PNP Input 
Mode

red

grn
r-g

g-r

Red (fixed)

Green (fixed)

Control output OFF Control output ON

Red

Green

Green

Red

Present value 
display color 
selection

Key Protection
Level

kp-2

kp-3
kp-4

kp-5

Key protection level 2

Key protection level 3

Key protection level 4
Key protection level 5

Key protection level 1

kp-1

Present value

Set value 1

Present value

Set value

Present value

Set value

Present value

Set value 2

Measurement
value

Comparison 
value 2

Power supply voltage/
Power consumption

Operating voltage range

Ambient temperature

Ambient humidity

Storage temperature

Altitude

Vibration resistance

Shock resistance

Recommended external fuse

Installation environment

Control 
output

Relay output

Transistor 
output

Relay durability

Degree of protection

85 to 110 % of the rated voltage  
(90 to 110 % in the case of DC12-24 V)

10 to 55

°

C (with no freezing) 

25 to 85% (with no condensation)

25 to 65

°

C (with no freezing) 

2,000 m max.

10 to 55 Hz, single amplitude: 0.5 mm, 4 sweeps each 
in X, Y, and Z directions (5 octave/min)

98 m/s

2

 3 times each in X, Y and Z directions

T2A, 250 VAC, time-lag, low-breaking capacity

Over-voltage category II, pollution degree 2 (as per IEC61010-1)

250 VAC, 3 A (resistive load), 30 VDC, 3 A (resistive load)

Open collector, 30 VDC max., 100 mA max.
Residual voltage: 1.5 VDC max. 
                            (Effective value: approx. 1 VDC)
Leak current: 0.1 mA or less

Electrical: 100,000 times, Mechanical: 10,000,000 times

IP54 (front section only)

External power supply

12 VDC, 100 mA (See note.)

Reduce the load current as shown in the 

diagram on the right according to the 

power supply voltage if a DC power 

supply is used for models specified for 

24 VAC/12 to 24 VDC.

1. Reset Indicator (Orange)
2. Key Protection Indicator (Orange)
3. Control Output Indicator (Orange)
    OUT: One stage
    OUT1, OUT2: Two stages
4. Present Value (Character height: 
    13.5 mm, Red or Green)
5. Set Value 
    (Character height: 9 mm, Green)
6. Total Indicator (Green)
7. Batch Indicator (Green)
8. Set Value 1, 2 Stage Indicator 
   (Green)

Indicators

Operation Keys

9. Mode Key
10.Reset Key
11 Up Keys: 1 to 6

69 

×

 69

M3.5 terminal screw 
(Effective length: 6 mm)

102

5 + panel thickness

Panel

6

(Dimensions with Mounting Bracket and Terminal Cover Attached)

82 min.

100 min.

68

+

0.7

0

68

+

0.7

0

0 V

Reset 1

8

9

10

11

12

13

14

(

)

(+)

External power

supply

16

15

18

Unused

Unused

17

OUT

OUT

1

2

3

4

5

6

7

0 V

8

9

10

11

12

13

14

(

)

(+)

16

15

18

Unused

Unused

17

Key 
protection

OUT2

OUT1

OUT2

OUT1

1

2

3

4

5

6

7

0 V

8

9

10

11

12

13

14

16

15

18

17

OUT

OUT

1

2

3

4

5

6

7

0 V

8

9

10

11

12

13

14

16

15

18

17

OUT2

OUT1

OUT2

OUT1

1

2

3

4

5

6

7

Item

DIP switch settings 
enable/disable

Counting speed
Tachometer Output 
Mode

Average 
processing

Not used
NPN/PNP Input 

Mode

OFF

Disabled

30 Hz

Refer to the table 
on the right.

---

NPN

ON

Pin 5

Pin 6

OFF

OFF

OFF

ON

OFF

2 times

OFF

ON

4 times

ON

ON

8 times

Pin 3

Pin 4

Tachometer 

Output Mode

OFF

OFF

Upper and 

lower limit

ON

OFF

Area

OFF

ON

Upper limit

ON

ON

Lower limit

Enabled

10 kHz

---

PNP

1

2

4
5

3

6

7
8

Item

Counting speed

Input mode

Output mode

One-shot output time
Reset input signal width

NPN/PNP Input Mode

OFF

Disabled

30 Hz

Up

Refer to the table 
on the right.

0.5 s 

20 ms

NPN

ON

Pin 4

Pin 5

Output mode

OFF

OFF

N

ON

OFF

F

OFF

ON

C

ON

ON

K-1

Enabled

5 kHz
Down

0.05 s 

1 ms

PNP

1

2
3
4
5
6
7
8

4

5

11

9

1

2

3

6

7

8

10

Display

Configuration

H7BX-A

H7BX-AD1

H7BX-AW

H7BX-AWD1

1cnt

1-stage counter

2cnt

2-stage counter

tcnt

Total and preset counter

bcnt

Batch counter

dcnt

Dual counter

taco

Tachometer

72

72

H7BX-A(W): 100 to 240 VAC (50/60 Hz), 9.6 VA max.
H7BX-A(W)D1: 24 VAC (50/60 Hz), 8 VA max.
                         12 to 24 VDC, 5.3 W max.

Note:

Reset 1

Reset 2

Reset 2

CP1

CP1

CP2

CP2

12  VDC

12  VDC

Output COM

Output COM

External power

supply

Unused

Key 
protection

Reset 1

Reset 2

CP1

CP2

12  VDC

Output COM

Reset 1

Reset 2

CP1

CP2

12  VDC

Output COM

(

)

(+)

(

)

(+)

External power

supply

External power

supply

Unused

Unused

(

)

(+)

(

)

(+)

Unused

Unused

Refer to the table 
on the right.

Average 

processing

DIP switch settings 
enable/disable

Press the Reset Key to 
return to the factory 
settings.

Unused

: Factory setting,    : Selectable,   : Not selectable

H7BX

Digital Counter 

ENGLISH

INSTRUCTION MANUAL

200 ms

 • Three DIP switch labels
   (Only for model H7BX-AW

@

)

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