H7CN Solid-state Counter
All Required Counter Functions
Incorporated in a Compact DIN-sized
(48 × 48) Housing
• In addition to Up and Down models, a reversible (Up-Down)
counter is also available
• Maximum counting speed of 5,000 cps, never before attained
by a small-size preset counter
• Power supply freely selectable within a range of 100 to 240
VAC. Also, power supply for the DC-operated models is
selectable within a range of 12 to 48 V
• Models with memory backup function against power failure
For the most r ecent information on models that have been certified for
safety standar ds, refer to your OMRON website.
Classification Preset Counter Totalizing
Input signal Contact, Transistor Contact/Transistor
system (Count &
Mounting method Flush mounting, surface mounting
Display 7-segment LEDs (10 mm high), Up indicator 7-segment LEDs
(10 mm high)
Number of digits 4 digits (0 to 9,999)
Backup power for No Yes (100 to 240 No Yes
memory protection VAC only)
Control output Contact (SPST-NO) Contact (SPDT) Contact (SPST-NO) Transistor (open- ---
Operating mode Up counting Down Up Down Reversible Reversible Up Down Up counting
counting counting counting counting, counting, counting counting
command individual input
Max. 30 cps H7CN-XLN H7CN-YLN H7CN- H7CN- H7CN-ALN H7CN-BLN --- --- H7CN-TXL
counting XLNM YLNM
speed 5 kcps H7CN-XHN H7CN-YHN H7CN- H7CN- H7CN-AHN H7CN-BHN H7CN- H7CN- H7CN-TXH
(see XHNM YHNM XHNS YHNS
Note: 1. Only the transistor input signal is available when the maximum counting speed is 5,000 cps
2. Specify the power supply voltage when ordering.
■ Accessories (Order Separately)
Protective Cover Hard Y92A-48B
Flush Mounting Adapter Y92F-30
Applicable Counter Track Mounted Back Connecting
H7CN-@@ P2CF-08(-E) P3G-08
H7CN-@@M P2CF-11(-E) P3GA-11
Supply voltage 24, 100 to 240 VAC 50/60 Hz
12 to 48 VDC (contains 20% ripple max.) (see note 1)
Operating voltage range 85% to 110% of rated voltage
Power consumption Approx. 12 VA/2.5 W (at 240 VAC, 50Hz)
(see note 2) Approx. 2.5 W (at 48 VDC)
Count and reset input Impedance by short-circuiting contacts: 1 kΩ max.
Residual voltage: 2 V max.
Impedance by opening contacts: 100 kΩ min.
Max. counting speeds of 30 cps (contact and transistor inputs)
count input Minimum pulse width: 16.7 ms (ON/OFF ratio: 1:1)
5.000 cps (transistor inputs)
Minimum pulse width: 0.1 ms (ON/OFF ratio: 1:1)
Reset system Power-OFF reset
Reset time: 0.5 s
Reset time following power application 0.05 s
External reset & manual reset
Reset time: 0.02 s
Reset time following signal application: 0.05 s
Control output Contact (SPDT) output:
3 A, 250 VAC, cosϕ = 1 (resistive load)
Transistor (open collector) output:
30 VDC MAX. 100 mA max.
Case color Light gray (Munsell 5Y7/1)
Note: 1. The memory backup function is not available for this DC supply voltage range.
2. On power application, an inrush current of approximately 10 times the normal current flows through the Counter.
Item Preset Counter Totalizing Counter
Insulation resistance 100 MΩ min. (at 500 VDC) (between current-carrying 100 MΩ min. (at 500 VDC) (between current-carrying
terminal and exposed non-current-carrying metal parts, terminal and exposed non-current-carrying metal parts)
and between non-continuous contacts)
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min (between current- 2,000 VAC, 50/60 Hz for 1 min (between current-
carrying terminal and exposed non-current carrying carrying terminal and exposed non-current carrying
metal parts and between non-continuous contacts) metal parts)
Impulse withstand voltage 6 kV (between power terminals)
6 kV (between current-carrying terminal and exposed non-current-carrying metal parts)
Noise immunity ±2 kV (between power terminals),
±500 V (between input terminals),
square-wave noise by noise simulator
Static immunity Malfunction: 8 kV
Vibration resistance Destruction: 10 to 55 Hz, 0.75-mm single amplitude
Malfunction: 10 to 55 Hz, 0.5-mm single amplitude
Shock resistance Destruction: 300 m/s2 (approx. 30G)
Malfunction: 100 m/s2 (approx. 10G)
Ambient temperature Operating: –10°C to 55°C (with no icing)
Storage: –25°C to 65°C (with no icing)
Ambient humidity 35% to 85%
Life expectancy Mechanical: 10 million operations min. ---
Electrical: 100,000 operations min.
(3 A at 250 VAC, resistive load)
Weight Approx. 110 g
■ Applicable Standards
Approved safety standards UL508/CSA C22.2 No. 14
EN 61010-1 (IEC 61010-1): Pollution degree 2/overvoltage category II
EMC (EMI) EN61326
Emission Enclosure: EN 55011 Group 1 class A
Emission AC mains: EN 55011 Group 1 class A
Immunity ESD: EN 61000-4-2
Immunity RF-interference: EN 61000-4-3
Immunity Conducted Disturbance: EN 61000-4-6
Immunity Burst: EN 61000-4-4
Immunity Surge: EN 61000-4-5
Immunity Voltage Dip/Interruption: EN 61000-4-11
Electrical Life Expectancy
(Resistive load) (Inductive load)
Load current (A) Load current (A)
■ Timing Charts
Up Type Down Type
Up/Down A, B Types
* Full scale: 9999
Up/Down Selectable Type
Note: (A) must be more than the minimum signal width. If (A) is set shorter than the minimum signal width, the error of count ±1 may occur.
Up mode Down mode
Count input 1: Count input; Count input 2: Inhibit (gate) input Count input 1: Count input; Count input 2: Inhibit (gate) input
input 1 input 1
input 2 input 2
Count value Count value
Note: Input to the CP2 while the CP1 is set to "L." Note: Input to the CP2 while the CP1 is set to "L."
Count input 1: Inhibit (gate) input; Count input 2: Count input Count input 1: Inhibit (gate) input; Count input 2: Count input
input 1 input 1
input 2 input 2
Count value Count value
Note: Input to the CP1 while the CP2 is set to "H." Note: Input to the CP1 while the CP2 is set to "H."
Note: A) must be more than the minimum signal width. If (A) is set shorter than the minimum signal width, the error of count ±1 may occur.
Up/Down A command input Up/Down B individual input
input 1 input 1
input 2 input 2
Count value Count value
H: Short-circuit ON-time impedance; 1 kΩ max. Residual voltage; 0.5 V max.
L: Open circuit OFF-time impedance; 100 kΩ min.
48 (10.9) 72.5 14.2
■ Accessories Connecting Sockets
Adapter for Flush Mounting H7CN
Y90F-30 Front Mounting Flush Mounting
Panel Y92F-30 Flush Back P3G-08
Mounting Adapter Connecting
H7CN H7CN +
Panel Cutout Front Mounting Flush Mounting
The standard panel cutout is as shown below. (Panel cutout
conforms to DIN43700.)
0.5 max. H7CN H7CN +
116.9 114.6 Adapter
Panel cutout for side-by-side mounting of two or more Units
When mounting n Counters in a line, dimension A can be calculated
from following formula.
A = (48n-2.5) +10
■ Protective Cover Note: 1. The Hard Protective Cover prevents the set count value
from being altered due to accidental contact with the push-
type thumbwheel switch.
The Protective Cover shields the front panel, particularly the count
value setting section from dust, dirt and water, and prevent
malfunctioning of the Counter due to static electricity. 2. The Soft Protective Cover allows the set value to be set by
depressing the thumbwheel switches through it.
It may be, however, difficult to make setting changes of the
Counter with the Y92A-48B Protective Cover attached,
which must be taken into consideration before using the
Y92A-48B Protective Cover.
Y92A-48B (Hard cover) Y92A-48D (Soft cover)
(see note 1) (see note 2)
■ Terminal Arrangement
Presetting Model Presetting Model Totalizing Model
(with No Backup Function) (with Backup Function) (with No Backup Function)
Reset input CP1 input CP2 input Output circuit Reset input CP1 input CP2 input Reset input CP1 input CP2 input
Common of Common of Common of
CP1 and CP2 CP1 and CP2 CP1 and CP2
reset inputs reset inputs reset inputs
Note: 1. Terminal 2 is a negative terminal Note: 1. Terminal 2 is a negative terminal
and terminal 7 is a positive and terminal 7 is a positive
terminal if DC power is supplied. terminal if DC power is supplied.
2. Common terminal 1 is internally 2. Common terminal 1 is internally
connected to terminal 2 if the Counter connected to terminal 2 if the Counter
is a model that operates with DC. is a model that operates with DC.
■ Power Supply Connection
For Models with No Backup Function For Models with
AC Power Supply DC Power Supply Backup Function
12 to 48 VDC 100 to 240 VAC
100 to 240 VAC
Note: 1. Make sure that the fluctuation of the supply voltage is within the permissible range.
2. Pay attention to the polarity of the DC power supply and do not make a wiring mistake.
■ Input Connection
The CP1 and CP2 reset inputs of the H7CN will be active when input to the H7CN is short-circuited.
Transistor Input (NPN) Contact Input
(30 V max.)
CP2 (N) CP1 (N)
(Reset) CP1 (N) CP2 (N)
CP2 (N) (Reset)
Input common (Reset)
*Operate with transistor ON
*Operate with transistor ON *Operate with contact ON
* Refer to the following for the signal * Sensors with voltage output can be * Make sure that the contact can switch
levels of the transistor input. connected to the H7CN as shown in 0.5 mA at 5 V with ease.
Note: 1. H level with transistor the above circuit diagram. When
ON.Residual voltage: 2 V transistor is OFF, make sure that the
max.ON impedance: 1 kΩ max. voltage between the input common
and CP1 or CP2 terminals are 4 V
2. L level with transistor OFF.OFF min. for AC models and 6 V min. for
impedance: 100 kΩ min. DC models.
■ Output (Load) Connection
250 VAC max.
30 VDC max.
*Diode to absorb counter-electromotive force
The delay time, which is the period between the moment a pulse
input signal that coincides with the preset value is ON and the
moment the corresponding control output signal is ON, varies with
the counting speed and type of output as shown in the following
Control output Max. counting speed Delay time
Contact output 30 Hz (cps) 12.5 to 15.0 ms
5 kHz (cps) 4.0 to 5.5 ms
Transistor output 5 kHz (cps) 0.05 to 0.25 ms
● Be sure to read the precautions for all Counters in the website at: http://www.ia.omron.com/.
Warning Indications Precautions for Safe Use
Indicates a potentially hazardous • Make sure the proper product is specified for the application.
CAUTION situation which, if not avoided, may • For correct use, do not subject the product to the following
result in minor or moderate injury or in conditions.
property damage. • Dramatic temperature fluctuations
Precautions for Supplementary comments on what to • High humidity or where condensation may occur
Safe Use do or avoid doing, to use the product
safely. • Severe vibration and shock
Precautions for Supplementary comments on what to • Where excessive dust, corrosive gas, or direct sunlight may be
do or avoid doing, to prevent failure to present
Correct Use operate, malfunction or undesirable • This product is not waterproof or oil resistance. Do not use the
effect on product performance. product in any of the places subject to splashing liquid or oil
Meaning of Product Safety Symbols atmosphere.
• Use and store the product within the rated ranges given for the
product model you are using. If necessary, use forced cooling.
Used to warn of the risk of electric shock under If the product is stored below −10°C, allow it to warm up for three
specific conditions. hours at room temperature before turning ON the power supply.
• Do not cover the vent holes on the products and the area around
the product in order to ensure thermal dissipation.
• Wiring all terminals correctly.
Used for general prohibitions for which there is no • Do not wire the terminals which are not used.
specific symbol. • Use specified size crimped terminals (M3.5, thickness 7.2mm
max.) for wiring with a gage of AWG 24 to AWG 18 (equal to a
cross section area of 0.205 to 0.823mm2).
Used for general mandatory action precautions (The wiring stripping length is 5 to 6mm.)
for which there is no specified symbol. Up to two wires of same size and type, or two crimped terminals
can be inserted into a single terminal.
• Use this product within the rated power supply voltage and control
• Use a switch, relay, or other contact to turn the power supply ON
!CAUTION instantaneously. If the voltage is applied gradually, the power may
not be reset or output malfunctions may occur.
Do not touch the terminals while power is being supplied. • Do not apply the supply voltage directly from external to transistor
Doing so may occasionally result in minor injury due to output.
electric shock. • Interlock the power to the product with a relay so that the product
Do not use the product where subject to flammable or will not be left in an output on condition for long periods. Leaving
explosive gas. Otherwise, minor injury from explosion the product in an output-on condition for a month or longer,
may occasionally occur. especially in places with high temperatures, may result in
Never disassemble, modify or repair the product or touch deterioration to internal parts, such as an electrolytic capacitor.
any of the internal parts. Minor electric shock, fire, or • A constant reading system is used in the present counter, so
malfunction may occasionally occur. settings can be changed while power is being supplied, but the
The life expectancy of output relays varies considerably output will turn ON if the set value is set to the current
with the output load and switching conditions. Always • When changing the set count while power is being supplied, an
consider the application conditions and use the output inadequate push of the thumb wheel switches will display two
relays within their rated load and electrical life numbers in one display window, causing the operating count to drift
expectancy. If the output relays are used past their life widely. Therefore, press the thumb wheel switches surely.
expectancy, contact fusing or burning may occasionally • Internal circuit voltage (5 V) is output to the no-
occur. Also, never exceed the rated load current. When voltage input terminals, which may cause some Sensor
using a heater, surely use a thermo switch in the load connected devices to malfunction or fail. Check the
circuit. specifications of the input device (e.g., rated output
Tighten the screws to between 0.74 and 0.90 N⋅m. Loose voltage or whether a power supply circuit diode is 0V Input
screws may occasionally result in fire. built in).
To prevent power supply devices from being subjected to charging
Do not allow pieces of metal, wire clippings, or fine accidents, connect a diode as in the diagram figure when using a
metallic shavings from installation to enter the product. power supply voltage of 5 V or less to operate input devices that do
Doing so may occasionally result in electric shock, fire, or not have a diode built into the power supply circuit.
malfunction. • Check that the LED indicators are operating normally. Depending
on the operating environment, the indicators and plastic parts may
deteriorate faster than expected, causing the indicators to fail.
Periodically perform inspections and replacements.
• Use tools when separating parts for disposal.
• When disposing of the product, observer all local ordinances as
Precautions for Correct Use ■ Self-diagnostic Function
• Inrush current will be carried when turning on the power. If the When an error has occurred, the bellow error codes are shown.
capacity of the power for the product is insufficient, the product 7 segment Count UP Description
cannot start. Use a power supply, breakers, contacts which display display Output
sufficient capacity. OFF CPU error OFF
100 to 240 VAC specifications Approx. 0.8 A for 264 VAC e1
12 to 48 VDC specifications Approx. 0.4 A for 52.8 VDC e2 OFF Memory error (RAM) OFF
• Since 50 ms after the power is turned ON is required as the raise e3 OFF Memory error OFF
time of the internal circuit voltage, note that the product may not (non-volatile memory)*
operate in response to any input signal during this period.
• Since 50 ms after the power is turned OFF (or momentary power * Including the case when the rewriting lifespan of the nonvolatile
failures) is required as the fall time of the internal circuit voltage, memory is reached.
note that the product may respond to input signals during this Recovery method
period. As an action, turn the power OFF then back ON again. If the display
ON restored to normal, then a probable cause can be external noise
Power supply affecting the system. Check for external noise. In the case of e3, if
50 ms 50 ms the display remains the same even when turn power ON again, input
Input reception Input can be received reset. After that, if it still remains the same, the product must be
unstable ■ Changes in Specifications
• Models without power failure memory backup will operate as
shown in the following figure if the power supply is momentarily The Counter was upgraded in November 2005. The major
interrupted. changes are described below.
ON • Backup Battery Connection to Counters with Memory
Power supply Backup
Momentary Operation after Previously, an external backup battery was required for
power interruption power interruption Counters with memory backup, but the Counter has been
upgraded so that the external battery is no longer necessary.
0.5 s min. Displays and outputs will be reset.
0.01 s max. The status before the power interruption Conformance to EN/IEC Standards
will be held.
0.01 to 0.5 s Operation will be unstable, i.e., one of the • When conforming to EMC standards, refer to the information
above operations will be performed.
provided in datasheet for cable selection and other conditions.
Note: Use a Counter with power failure backup memory (models • This is a class A product. In residential areas it may cause radio
ending with -M) if holding the status before the power failure is interference, in which case the user may be required to take
required when the power is interrupted. adequate measures to reduce interference.
• All number display digits on the Counter will be OFF when the • 100-240 VAC types: There is basic insulation between the power
signal is input for a external or manual reset. When the reset signal supply terminals and input terminals, and between power supply
is completed, the numeric display will show the reset value. terminals and output terminals, and between input and output
• Model H7CN 12-48 VDC specification use transformerless power 12-48 VDC types: No insulation is provided between the power
supply which the power terminals and input terminals are not supply and input terminals. There is basic insulation between
insulated. When use this specification, the internal parts of the power supply terminals and output terminals, and between input
product may be occasionally burnt (damaged) if the wiring is not and output terminals.
correct. Pay attention to check the wiring before use. • If double or reinforced insulation is required, use the double or
Power Failure Backup Memory reinforced insulation defined in IEC 60664 that is suitable for the
maximum applied voltage for the clearance, solid insulation, and
• The product memorizes the status just before occurring the electric other factors.
failure memory with non-volatile memory. The rewriting lifespan of
the non-volatile memory is 1,000,000 or more. The non-volatile
memory rewrites the setting condition into the initial setting one
when the power OFF and reset input.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
In the interest of product improvement, specifications are subject to change without notice.
Industrial Automation Company
http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2017 All Right Reserved.
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
H7CN-YHN DC H7CN-YLNM AC100-240 H7CN-ALN DC H7CN-BLN DC H7CN-XHN-AC100-240 H7CN-BLN-
AC100-240 H7CN-XLN-AC100-240 H7CN-TXL AC H7CN-YLNM DC24 H7CN-XHNS AC100-240 H7CN-XLNM
AC100-240 H7CN-XLNM DC24 H7CN-XLN DC12-48 H7CN-XHNM AC100-240 H7CN-XHNS DC12-48 H7CN-YLN
AC100-240 H7CN-XHN DC12-48 H7CN-YLNM-AC H7CN-BLN-AC H7CN-XHN-AC