KCN-S/KCN-W Single/Dual Preset Counters for

Addition and Subtraction

Electronic
Counters

Maximum counting speed: 30cps, 1kcps, 2kcps or 5kcps

(selected by digit keys)

With the DIN standard size of only 48 mm by 48

mm, the full featured counter incorporates an easy
to read LCD display.
Integrating the latest technologies, the counter can
be used for many purposes as measuring
KCV

quantities, length and time. Other options include

single preset for general purpose models, and dual
preset setting for multifunction counters.
Easy operation
KCN-A

Merits Countup values can be set or modified independently from initial

settings. Changes can be made easily and quickly on site.
Small body and easy to see display
With its body of only 48 mm by 48 mm, the counter provides
KCN-S/W

full screen display of either four-digit or six-digit numbers

with the height of 13 mm or 10 mm.
Count display

The currently Preset value

selected digit
KCN-B

10mm flashes.
13mm

Stores a preset value.

KCN-T

Increments the value of a

selected digit by one.
Select a digit to be preset.
Switches between first preset mode
Backlit LCD integrated in al models or second preset mode.

Displayed values are backlit to facilitate reading in

A series of models to meet all your needs
KCY

darkness.
All 16 models include advanced functions such as
prescaling and decimal display. These models can be
combined appropriate to satisfy your requirements.

Multifunction
KCX

A complete series of models provide advanced functions

such as dual preset nine output modes, count disable, large
capacity sensor power (DC24 V, 60 mA) and AC 100 to 240
V user-selectable power source.
KCX-RN

Timer option
Keypad protection cover The KCN-4S general purpose 4-digit counter can be used
A keypad cover is attached to prevent erroneous operation. also as a precise digital timer.
KCH-B

DC power as thin as 55 mm Addition,subtraction or both operations are

With minimum space requirement, the control board can be available.
installed anywhere.
Twelve error codes quickly report error status.
55mm
KCM

AC power is 90 mm thick

EEPROM to avoid cell replacement

The counter uses an EEPROM to eliminate the use of cells.
The memory can store all counts, preset values and mode
settings.

Water proofed front panel

The keypad on the front panel is completely coated (IP64)
61mm
to insulate dust and water.

B-32
 KCN-S/KCN-W

Electronic
Counters
Mode options

Addition, subtraction and concurrent

Addition mode and Subtraction mode
Addition mode
In the Addition mode, the count
Preset value

KCN-A
increments by one for each pulse
Count

input. When the value has Incremented

to 990
reached a preset value,
MODE
the counter generates a RST ENT
Sensor
signal.

KCN-A
0 Pulse input

Subtraction mode
In the Subtraction mode, the Preset value
count decrements by one for
Count

Decremented

KCN-S/W
each pulse input. When the
to 10
value has reached zero, the MODE
counter generates a signal. RST ENT
Sensor

0 Pulse input

KCN-B
Addition and Subtraction
Counting operation is not affected by any deviation of roller movement. Addition pulse and subtraction pulse can be
entered separately or simultaneously.

KCN-T
Roller for length Addition
measurement
Subtration
MODE
Deviation RST ENT MODE
RST ENT
Rotary encoder

KCY
Two-phase signal

Prescaling

KCX
Converting the number of pulses to quantity or dimension

Quantity
KCX-RN
Multiplied by 4

MODE
Sensor RST ENT Prescaled at 4

Four workpieces per pulse

KCH-B

Roller for length Cutter Cut length (in mm)

measurement

Can be set to a rounded integer.

KCM

MODE

Rotary encoder RST ENT

Prescaled at 0.8
You need not consider
the roller's diameter
0.8 mm per pulse
when setting the
counter value
Either unit is selectable with the prescaling
function
Setting in inches Setting in meters
Change in the mechanism
are not required

B-33
 KCN-S/KCN-W
Electronic
Counters

Displaying a decimal point

A decimal point can be displayed at a
desired location.
KCV

Decimal point

MODE
RST ENT
KCN-A

Switching the input logic between positive and negative

Device choices are expanded by two input logics available for positive (voltage) input and negative (no
voltage) input.
KCN-S/W

Relay
KCN-B

Proximity switch
KCN-T

Relay output
Photoelectric sensor
KCN- R
KCY

DC output
KCN- T
Rotary encoder
KCX
KCX-RN

Nine operation modes

The multifunction counter has nine operation modes, including Compare, Hold, Auto Reset and One shot
Output.
Ex. Count of the number of workpieces (Compare mode)
KCH-B

Addition

(Mode 7)
OUT1
Subtration
Photoelectic Photoelectic C P1
MODE
sensor at entry sensor at exit
KCM

RST ENT

Conveyor

The counter counts and displays the number of workpieces on the conveyor.
The count is added to by input pulse generated by the photoelectric sensor
at the entry, and subtracted from by pulse generated by another sensor at
the exit. Addition and subtraction can occur at the same time.

B-34
 KCN-S/KCN-W

Electronic
Counters
Timer option KCN-4SR-C/4ST-C/4SR/4ST General Purpose 4-digit Counters

These counters can be used also as timers from 0.01 second to 99 hours and 59 minutes

0.01s 0.1s 1s 10s 99.99s 999.9s 9999s

KCN-A
KCN-A
1m 99m59s 99h59m

KCN-S/W
KCN-B
Digital clock for easy Five output modes for
and error-free setting wide applications

KCN-T
On Delay
Off Delay
Quartz crystal oscillator
One Shot
assures the clock precision.
Flicker
Accumulate

KCY
KCX
Either time elapsed or remaining can be displayed.
KCX-RN
KCH-B
KCM

B-35
 KCN-S/KCN-W Counter/Timer Functions
Electronic
Counters

Two Categories of Models Model number System

General purpose counters
Single preset, One-Shot or Hold output, prescaling and decimal
KCN- -
point display
C DC power
Source voltage Output type Sensor source 4-digit(and timer) 6-digit Blank AC power

Relay KCN-4SR-C KCN-6SR-C R Relay output

KCV

DC24V output T DC output

None
only
DC output KCN-4ST-C KCN-6ST-C S Single preset
W Dual preset

Relay
KCN-A

KCN-4SR KCN-6SR 4 4-digit

AC110V output DC24V 6 6-digit
or 15mA
AC220V DC output KCN-4ST KCN-6ST
KCN-S/W

Multifunction
Single or Dual preset setting, nine modes including One-Shot, Hold and
Compare output, prescaling and decimal point display

Source voltage Output type Sensor source 4-digit 6-digit

KCN-B

Relay KCN-4WR-C KCN-6WR-C

output
DC12 24V None
DC output KCN-4WT-C KCN-6WT-C
KCN-T

Relay KCN-4WR KCN-6WR

output DC24V
AV100V
240V 60mA
DC output KCN-4WT KCN-6WT
KCY

General Specifications
Item General Purpose Multifunction

Source AC AC 85 115V, or AC 180 240V AC90 264V

KCX

voltage DC DC 20 28V (Max. 10 p-p ripple) DC 10 30V (Max. 10 p-p ripple)

Power AC Approx. 5VA Approx. 5VA
consumption DC Approx. 2W Approx. 2W
KCX-RN

Sensor AC DC 24V (20 28V) 15mA (Max. 10 p-p ripple) DC24V (20 28V) 60mA (Max. 10 p-p ripple)
power DC None None
Memory backup at power failure EEPROM (Up to 100,000 writes)
Ambient temperature 10 50
Storage temperature 25 70 (with no freezing)
KCH-B

Ambient/Storage humidity 35 85 RH (with no dewing)

Withstand voltage AC 2kV for one minute (For each of AC input, 0V and relay output interconnection)
Insulation resistan 20M or more at DC 500V (AC: For each of AC input, 0V and relay output interconnection)
Durable for one hour along three axes at 10 to 55 Hz with 0.5 mm amplitude
Vibration resistance No error for one hour along three axes at 10 to 55 Hz with 0.35 mm amplitude
KCM

Shock resistance Durable for 11 ms along three axes at 490 m/s2 (50 G) No error for 11 ms along three axes at 98 m/s2 (10 G)
Noise resistance 1.5 kV between power terminals (square wave pulse with 1 s width and 1 ns rise time)
Coating IP64 for the keypad on the front panel against dust and splash.
Installation Flush mounting
Connection Terminal block
AC Approx. 220 g Approx. 150 g
Mass
DC Approx. 110 g Approx. 110 g
Noise tests also include static discharge test and NEMA compliance tests.

B-36
Counter Functions KCN-S/KCN-W

Electronic
Counters
Performance Specification
Item General Purpose (KCN-S) Multifunction (KCN-W)
Operation Addition and subtration
Setting Single preset Single or Dual prest (selected by keys)
Number of digits 4 or 6 digits (depending on models)
Setting range 4 digits: 999 9999 6 digits: 99999 999999

KCN-A
Counting speed 30cps, 1kcps, 2kcps, or 5kcps (selected by keys) For duty factors, see Counting Timing.
Input mode Addition and/or subtraction or two-phase (selected by keys)
Input logic Positive (voltage) or negative (no voltage) (selected by keys)
Extermal reset input Minimum pulse width: 5 ms

KCN-A
Auto reset Responded within 0.5 ms (2.5 ms at 5kcps)
Manual reset Responded within 0.1 s
Power reset Power shutdown: 1 s or more Reset duration: 1 s or less (until restart)
Output NPN open collector or relay contact 1a (depending on models)

KCN-S/W
One Shot (momentary output) or Hold One Shot (momentary output), Hold or Compare
Output mode (selected by keys) (selected by keys)
Output duration 0 9990 ms (selected by keys in 10 ms increments)
Maximum counting speed Open collector output Relay output

KCN-B
30cps 14ms or less 19ms or less
I/O response 1kcps 1ms or less 6ms or less
2kcps 0.5ms or less 5.5ms or less
5kcps 2.5ms or less 7.5ms or less

KCN-T
Decimal point display Any location (selected by keys)
Prescaling 4 ditits: 0.001 9.999 6 ditits: 0.001 99.999
Count disable input Not available Responded within 2.5 ms
Output response delays only at 5k cps.

KCY
I/O Specifications
Input speed 30cps/ 1kcps/ 2kcps/ 5kcps
Positive: 15k

KCX
Pulse Input resistance Negative: 3.3k (1.8k for DC models)
input
L 0 3V
Input voltage
H 7 30V
On delay: Max. 5ms
Input response
KCX-RN
Off delay: Max. 5ms
Reset Positive: 15k
Input resistance
input Negative: 3.3k (1.8k for DC models)
L 0 3V
Input voltage
H 7 30V
KCH-B

On delay: Max. 2.5ms

Input response
Off delay: Max. 2.5ms
Count Positive: 15k
disable Input resistance
Negative: 3.3k (1.8k for DC models)
input
L 0 3V
Input voltage
H 7 30V
KCM

Withstand voltage Max. 35V

NPN open
collector Current Max. 100mA
output Residual voltage Max. 2V
AC220V 2A AC220V 0.5A DC30V 0.5A
Relay Capacity (resistance load) (cos 0.4) (L/R 7ms)
output
Durability Min. 100,000 contacts Min. 200,000 contacts Min. 200,000 contacts

B-37
 KCN-S/KCN-W Counter Functions
Electronic
Counters

Output modes
KCN-S KCN-W (dual preset mode)
Mode No Count Signal output OUT1 OUT2
Mode No
1 Continued Held Count Signal output Count Signal output
One shot 1 Continued Held
2 Reset
10 9990ms
2 Reset One shot*
Held
10 9990ms
KCN-W (single preset mode) 3
KCV

Continued
Continued
Mode No Count Signal output 4 Held
Held
1 Continued Held 5 One shot Continued
6 10 9990ms Reset One shot*
2 Reset One shot*
KCN-A

3 Continued 10 9990ms 7 C P2
C P1
4 Held Held 8 C P2
7 C P 9 C P1 P1 C P2

8 C P C: Count P1: First setting P2: Second setting

KCN-S/W

C: Count P: Setting Can be set in 10 ms increments from 10 to 9990 ms.

Output mode diagrams

KCN-B

KCN-S general purpose, single preset

Mode 1 (Hold) Out: Held Count: Continued Mode 2 (One Shot) Out: One Shot Count: Reset

Addition Subtraction Addition Subtraction

KCN-T

SET SET

0 0
KCY

Reset Reset

OUT OUT

One Shot means signal output for short duration from 10 to 9990 ms
KCX

Counting at 5kcps is disabled during reset in Mode 2 ,as 2.5 ms is required

for auto reset.
KCX-RN

KCN-W Multifunction, single or dual preset

Mode 1 OUT2: Held Count: Continued Mode 2 OUT2: One Shot Count: Reset
OUT1: Held OUT1: Held
Addition Subtraction Addition Subtraction
KCH-B

SET2 SET2

SET1 SET1

0 0

Reset Reset
KCM

OUT1 OUT1

OUT2 OUT2

B-38
Counter Functions KCN-S/KCN-W

Electronic
Counters
Mode 3 OUT2: One Shot Count: Continued Mode 4 OUT2: Held Count: Continued
OUT1: Held OUT1: Held
Addition Subtraction Addition Subtraction
SET2 SET2

SET1 SET1

0 0

Reset Reset

KCN-A
OUT1 OUT1

OUT2 OUT2

Mode 5 OUT2: Held Count: Continued Mode 6 OUT2: One Shot Count: Reset

KCN-A
OUT1: One Shot OUT1: One Shot
Addition Subtraction Addition Subtraction
SET2 SET2

SET1 SET1

KCN-S/W
0 0

Reset Reset

OUT1 OUT1

OUT2 OUT2

KCN-B
Mode 7 OUT2: When the count is equal to or smaller than Mode 8 OUT2: When the count is equal to or larger than
SET2. SET2.

SET2 SET2

KCN-T
SET1 SET1

0 0

OUT1 OUT1

OUT2 OUT2

KCY
Mode9 OUT2: When the count is equal to or larger than
SET1, and when it is equal to or smaller than
SET2.

KCX
SET2

SET1

0
KCX-RN
OUT1

OUT2
KCH-B

Mode 5 Mode 6 Mode 9 are available only on dual preset mode.

Single preset mode operate as described under SET2, OUT2.
In One Shot mode, output duration ranges from 10 to 9990 ms.
One Shot output turns off when reset signal is entered.
KCM

In One Shot mode, another countup causes signal output for a set duration.
In Mode 2 Mode 6 , counting at 5k cps is interrupted for 0.5 to 2.5 ms between countup and next pulse input.

In both modes, counting at 2k cps is not affected by countup.

Signal output is controlled as follows regardless of the magnitudes and the signs of SET1 and SET2:
In Hold mode, it generates and hold signal when the count equals preset value.
In One Shot mode, it generates signal momentarily when the count equals preset value.
In Compare mode, it generates signal when the count is equal to or larger (or smaller) than the preset value.

B-39
 KCN-S/KCN-W Counter Functions
Electronic
Counters

Counting timing
Addition and Subtraction mode
Positive (voltage) input
Addition Subtraction
"H"
INA Pulse can be counted either at rising
"L" edge or falling edge.
KCV

"H"
INB Pulse can be counted either at rising
edge or falling edge. "L"
KCN-A

Negative (no voltage) input

Addition Subtraction
"H"
INA Pulse can be counted either at rising
"L" edge or falling edge.
KCN-S/W

"H"
INB Pulse can be counted either at rising
edge or falling edge. "L"

Note: Counting occurs at the rising edge or falling edge.

KCN-B

Two-Phase mode
Addition Subtraction
"H" "H"
KCN-T

INA
"L" "L"

"H" "H"
INB
"L" "L"
KCY

Note: Counting always occurs at rising edge.

Duty factors
INA and INB in Two-Phase mode: 50 at 5kcps
KCX

T (200 s)
"H"
INA
KCX-RN

"L"

"H"
INB
"L"
KCH-B

T T T T
4 4 4 4
(50 s or more ) (50 s or more ) Minimum width that
enables counting.
1
Counting speed (cps) (s)
T
KCM

B-40
Counter Functions KCN-S/KCN-W

Electronic
Counters
Wiring Diagrams
General purpose (KCN-S) Multifunction (KCN-W)
KCN-4 6SR KCN-4 6WR
Sensor power Sensor power Sensor Count
DC24V Sensor power DC24V power disable input
15mA IN-A IN - B 0V 60mA IN-A IN-B 0V INH

KCN-A
R Reset input R Reset input

AC AC OUT1 AC100V

KCN-A
100V 200V Relay output 1 240V

OUT OUT2
Relay output Relay output2

KCN-4 6ST KCN-4 6WT

KCN-S/W
Sensor power Sensor power Sensor Count
DC24V Sensor power DC24V power disable input
15mA IN-A IN - B 0V 60mA IN-A IN-B 0V INH

R Reset input R Reset input

KCN-B
OUT1
DC output 1

AC AC AC100V
100V 200V 240V

OUT 0V OUT2 0V

KCN-T
DC output Common output DC output 2 Common output

KCN-4 6SR-C KCN-4 6WR-C

Common Count
Common input input disable input
IN-A IN - B 0V IN-A IN-B 0V INH

KCY
R Reset input R Reset input

KCX
OUT1
Relay output 1

OUT OUT2
Relay output DC power DC24V Relay output2 DC power DC12 24V
KCX-RN
KCN-4 6ST-C KCN-4 6WT-C
Common Count
Common input input disable input
IN-A IN - B 0V IN-A IN-B 0V INH
KCH-B

R Reset input R Reset input

OUT1
DC output 1
KCM

OUT 0V OUT2 0V
DC output Common output DC power DC24V DC output 2 Common output DC power DC12 24V

Dimensions of
6.3

Terminal Block
Wire section: 0.25 to 1.65mm2
8.5

Conforming crimped contact: 1.25-3

1.7

10.55
5.2

7.62 M3 screw

1.32 6.3 1.32

B-41
 KCN-S/KCN-W Counter Functions
Electronic
Counters

I/O Circuit Diagrams

AC Power DC Power

For relay For relay

Sensor output DC24V output
power 2 source 24VV 12 Internal circuit
source
ON for negative input
8 ON for negative input 8
DC24V
OUT1 13 OUT1
KCV

5V 5V
9 9
3.3k 3.3k

IN A 3 10 IN A 3 10
15k 15k
KCN-A

OUT2 OUT2

5V 11 5V 11
3.3k 3.3k

IN B 4 IN B 4
KCN-S/W

15k 15k

8 OUT1 8 OUT1
5V 5V
3.3k 3.3k

7 7
KCN-B

Reset Reset
15k 15k
10 OUT2 10 OUT2
5V 5V
3.3k 3.3k
KCN-T

Count Count
6 6
disable 15k disable 15k
input input

0V 5 11 0V 0V 5 11 0V

For general purpose counters. 1.8 k for multifunction models.

KCY

Input Wiring Examples (count, reset and count disable)

Proximity switch with voltage output or PNP open collector output Proximity switch with NPN open collector output
KCX

Input logic: Positive (voltege) input (pos) Input logic: Negative (no voltage) input (neg)
Input mode: Addition and Subtraction separate inputs (ad. sb.) Input mode: Addition and Subtraction separate inputs (ad. sb.)

Brown Brown
(Red) (Red)
2 24V sensor power
KCX-RN

2 24V sensor power

Addition Black Addition Black

(White) (White)
3 IN A 3 IN A

Subtraction Black Black

KCH-B

Subtraction
(White) (White)
4 IN B 4 IN B

Black Black
(White) (White)
7 Reset 7 Reset
KCM

Black Black
(White) (White)
6 Count disable input 6 Count disable input
Blue Blue
(Black) (Black)
5 0V 5 0V

Recommended proximity swith: APS - -T E2 Recommended proximity swith: APS - -N E

B-42
Counter Functions KCN-S/KCN-W

Electronic
Counters
DC 2-wire proximity switch Rotary encoder

Input logic: Negative (no voltage) input (neg) Input logic: Positive or negative to be set according to encoder output
Input mode: Addition and Subtraction separate inputs (ad. sb.) Input mode: Two-phase (quad)

2 24 V sensor power Red

2 24 V sensor power

KCN-A
Addition
White
3 IN A Green
(Blue)
Black 3 IN A
Subtraction
4 IN B

KCN-A
4 IN B
White
7 Reset
5 0V
Black

KCN-S/W
6 Count disable inpurt

5 0V

Recommended proximity switch: APS - -Z Recommended proximity switch: TRD-J -RZ S

KCN-B
20V or more is required for multifunction DC source voltage. TRD-GK -RZ R

Switch or relay

Input logic: Positive (voltage) input (pos) Input logic: Negative (no voltage) input (neg)
Input mode: Addition and Subtraction separate inputs (ad. sb.) Input mode: Addition and Subtraction separate inputs (ad. sb.)

KCN-T
Counting speed: 30cps Counting speed: 30cps

2 24V sensor power 2 24V sensor power

Addition Addition
3 IN A 3 IN A

KCY
Subtraction Subtraction
4 IN B 4 IN B

KCX
7 Reset 7 Reset

6 Count disable input 6 Count disable input

KCX-RN

5 0V 5 0V

This connection is preferable to accommodate high input current.

KCH-B

Output Wiring Examples

NPN open collector output Relay output

May be driven by relay.

KCM

OUT1 8 Load 8 Load

OUT1
MAX.100mA
9
OUT2 10 Load

10 Load
OUT2
0V 11
11
Load power
rated at 24 V

B-43
 KCN-S/KCN-W Counter Functions
Electronic
Counters

Front Panel Layout and Description

Front panel

Count (zero-suppressed)
Character height: 13 mm for 4-digit display
10 mm for 6-digit display
Initial settings are displayed in the Setup mode.
KCV
KCN-A

Preset value
KCN-S/W

Initial settings are displayed in the

Setup mode.

Output status
OUT1: First preset output
OUT2: Second preset output Measurement unit
Hz: counts per second
KCN-B

ms: output duratuin in the One Shot

mode
MODE
Reset key Single/dual-preset mode display
Resets initial settings in the Setup RST ENT SET1: First setting
SET2: Second setting.
KCN-T

mode. Response time: 0.1 second

MODE key: ENTER key:

Used to change display mode or operation Used to write settings.
KCY

mode. Press this key and the key at the

same time to change operation mode
between Run and Setup.
key:
Used to select a digit or set its
value.
KCX

Right arrow key:

Press this key to shift one digit to the right.
KCX-RN
KCH-B
KCM

B-44
Counter Functions KCN-S/KCN-W

Electronic
Counters
Operating procedures
1. KCN-S General purpose counters
Switching between Setup mode and Run mode
Power on Run mode Setup mode

Press the MODE key and the key at the same time for at least

KCN-A
0.5 second.
Press the MODE key and the key at the same time for at least *
Prescale Select digit: 0 1. 0 0 0
0.5 second, or leave the system in the Setup mode for one minute.
scale
Changing a preset value
Go to the Run mode screen, and change the value as Setting at 0"

KCN-A
cannot be made.

Select digit
MODE
Select number

KCN-S/W
Select new value 0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9 (-)

The minus sigh (-) can be selected only for the

highest digit. Decimal point Select display n n n n n h. *
ENT Store new value range.
point
h denotes the ones'
digit before the
h h h h h h

KCN-B
decimal point is set.
follows:
Initializing the counter
Select decimal point setting mode
MODE
Counting speed Select counting speed
speed Select decimal point position
*

KCN-T
MODE 5 0 0 0 2 0 0 0 1 0 0 0 3 0
(CPS)

.n .n .n .n .n .n
Input mode Select input mode
in Reset key mode Select reset key mode
*
MODE q u a d a .
d s .
b
(two-phase) (addition or subtraction) reset

KCY
MODE *
e n a b d i s a
(enable reset key) (disable reset key)
Count memory Select count memory
count
c l e r
*
r e t n Notes:
MODE (power-on reset) (memory backup)
1. After you change a current setting, always press the ENT key to

KCX
store the new value.
Operation mode Select operation mode
2. indicates a value set at delivery.
c-dtr
* 3. After you change an initial setting, always press the RST key to
MODE u p d n
(addition) (subtraction) reset the count. KCX-RN
4. The displayed count is determined by the prescale and the
Input logic Select input logic
decimal point location. For example, if the prescale is set to
signl 1.200 and the decimal point is set as nnn.nHn, each pulse input
*
MODE p o s n e g increments the count as follows:
positive negative
(voltage input) (no voltage input)
0.012 0.024 0.036 0.048 0.060...
KCH-B

Output mode Select output mode

The following table lists the KCN series models and their initial settings:
c-op
* Model
MODE 1 2 Item KCN-6SR-1879 KCN-6SR-C-1770 KCN-6ST-C-1865
(Mode 1) (Mode 2)
Counting speed 30cps 1kcps

Output duration Select digit: 0 1 0 0 ms * Input mode

Addition or
KCM

subtraction
out Output duration
Count memory
Backup at Backup at
can be set or The lowest digitI is fixed power failure power failure
changed only in at 0", and cannot be
Output Mode 2. changed. Operation mode Addition
Setting at 0" cannot be
made. Input logic Positive Negative
MODE
Output mode Mode 1
Select number
Prescale 1,000

Decimal point No
0 1 2 3 4 5 6 7 8 9
Reset key Enabled

B-45
 KCN-S/KCN-W Counter Functions
Electronic
Counters

2. KCN-W Multifunction Single Preset Mode

Switching between Setup mode and Run mode

Power on Run mode Setup mode

Press the MODE key and the key at the same time for at least
0.5 second.
Press the MODE key and the key at the same time for at least
KCV

0.5 second, or leave the system in the Setup mode for one minute.

Changing a preset value

Go to the Run mode screen, and change the value as follows: OUT2 Output duration Select digit 1 0 0 ms *
out-t Output duration
Select digit can be set or The lowest digit fixed at 0",
KCN-A

changed only in and cannot be changed.

Output Mode 2 or 3. Setting at 0" cannot be
made.

MODE
Select new value
0 1 2 3 4 5 6 7 8 9 (-) Select number
KCN-S/W

The minus sigh (-) can

be selected only for the 0 1 2 3 4 5 6 7 8 9
ENT Store new value highest digit.

*
Initializing the counter Prescale Select digit 0 1. 0 0 0
In the Setup mode, the counter can be initialized using the menu as scale
KCN-B

Counting speed Select counting speed Setting at "0" cannot

be made.
speed
*
MODE 5 0 0 0 2 0 0 0 1 0 0 0 3 0 MODE
(CPS)
Select number
KCN-T

Input mode Select input mode

0 1 2 3 4 5 6 7 8 9
in
*
MODE q u a d a .
d s .
b
(two-phase) (addition or subtraction)

Decimal point Select display n n n n n h.*

range.
KCY

Count memory Select count memory

point
h denotes the ones'
count digit before the
* h h h h h h decimal point is set.
MODE c l e r r e t n
(power-on reset) (memory backup)

Select decimal point setting mode

Operation mode Select operation mode MODE
KCX

c-dtr The operation mode Select decimal point position

* can be changed in
MODE u p d n the Output Modes
(addition) (subtraction) 1 to 4.

.n .n .n .n .n .n
Input logic Select input logic
KCX-RN

signl
* Reset key Select reset key mode
MODE p o s n e g
positive
(voltage input))
negative
(no voltage input)
reset
MODE *
e n a b d i s a
Setmode Select set mode between single and enable disable
reset key reset key
dual preset
KCH-B

prset
*
MODE 2 1
(dual preset) (single preset) Notes:
1. After you change a current setting, always press the ENT key
Output mode Select output mode to store the new value.
c-op 2. indicates a value set at delivery.
KCM

*
MODE 1 2 3 4 7 8 3. After you change an initial setting, always press the RST key
to reset the count.
Selecting Mode 7 or 8 changes the
operation mode to Addition. 4. The displayed count is determined by the prescale and the
decimal point location. For example, if the prescale is set to
1.200 and the decimal point is set as nnn.nHn, each pulse input
increments the count as follows:
0.012 0.024 0.036 0.048 0.060...

B-46
Counter Functions KCN-S/KCN-W

Electronic
Counters
3. KCN-W Multifunction Dual Preset Mode
Switching between Setup mode and Run mode

Power on Run mode Setup mode

Press the MODE key and the key at the same time for at least
0.5 second.
Press the MODE key and the key at the same time for at least
0.5 second, or leave the system in the Setup mode for one minute.

KCN-A
Changing a preset value
Select Dual preset in the Setup mode, then switch to the Run mode to change the OUT2 Output duration Select digit 1 0 0 ms *
value as follows: Output duration can
out-t be set or changed The lowest digit fixed
only in Output at "0", and cannot be
Switch preset Mode 2,3, or 6.

KCN-A
MODE value display
SET2 SET1 changed.
MODE Setting at "0" cannot
be made.

OUT1 Output duration Select number

Select digit Output duration can
out-t be set or changed

KCN-S/W
only in Output
Mode 5 or 6. 0 1 2 3 4 5 6 7 8 9
MODE
Select new value
0 1 2 3 4 5 6 7 8 9 (-) *
Prescale Select digit 0 1. 0 0 0
The minus sigh (-) can be scale

KCN-B
selected only for the highest digit.
ENT Store new value
Setting at "0" cannot
be made.

Initializing the counter

MODE
In the Setup mode, the counter can be initialized using the menu as follows: Select number

KCN-T
Counting speed Select counting speed
0 1 2 3 4 5 6 7 8 9
speed
*
MODE 5 0 0 0 2 0 0 0 1 0 0 0 3 0
[Hz]

Decimal point Select display h*

n n n n n .
Input mode Select input mode range.

KCY
point
H denotes the ones'
in digit before the
* h h h h h h decimal point is set.
MODE q u a d a .
d s .
b
(two-phase) (addition or subtraction)

Select decimal point setting mode

Count memory Select count memory MODE

KCX
count Select decimal point position
*
MODE c l e r r e t n
(power-on reset) (memory backup)

.n .n .n .n .n .n
Operation mode Select operation mode KCX-RN
c-dtr The operation mode
* can be changed in Reset key Select reset key mode
MODE u p d n the Output Modes
(addition) (subtraction) 1 to 4. reset
MODE *
e n a b d i s a
Input logic Select input logic enable disable
reset key reset key
signl
KCH-B

*
MODE p o s n e g Notes:
positive negative
(voltage input) (no voltage input) 1. After you change a current setting, always press the ENT key
Set mode Select set mode between single and to store the new value.
dual preset 2. indicates a value set at delivery.
prset 3. After you change an initial setting, always press the RST key
*
KCM

MODE 2 1 to reset the count.

(dual preset) (single preset)
4. The displayed count is determined by the prescale and the
Output mode Select output mode decimal point location. For example, if the prescale is set to
1.200 and the decimal point is set as nnn.nHn, each pulse
c-op
*
input increments the count as follows:
MODE 1 2 3 4 5 6 7 8 9 0.012 0.024 0.036 0.048 0.060...
Selecting Mode 7 or 9 changes the
operation mode to Addition.

B-47
 KCN-S/KCN-W Timer Functions
Electronic
Counters

Timer option
KCN-4S Series General Purpose 4-digit Counters can be used also as high-precision timers.
To use the timer option, connect the pins 5 and 6 before turning the power on.

Performance Specifications I/O Specifications

Item Specification On Delay: Max. 15ms
Response
Off Delay: Max. 15ms
KCV

On Delay, Off Delay, One Shot, Flicker or Input

Mode Start signal resistance Positive: 15k Negative: 3.3k
Accumulate (Use keys to select one of these modes.)
input Input
0.01 99.99 seconds voltage L: 0 3V H:7 30V
0.1 999.9 seconds (Use keys to
On Delay: Max. 5ms
1 9999 seconds select one of Response
Timer range Off Delay: Max. 5ms
1 second 99 minutes and 59 seconds these modes.)
KCN-A

Reset input Input

1 minute 99 hours and 59 minutes resistance Positive: 15k Negative: 3.3k
Input
Display Either time elapsed or remaining (Use keys to select either mode.) voltage L 0 3V H 7 30V
Withstand Max. 35V
Error caused by voltage
voltage or tem- 0.005 or 15ms, whichever is larger Open collector
Current Max. 100mA
KCN-S/W

perature variation output

Residual Max. 2V
voltage
Start On Delay: Max. 15ms Off Delay: Max. 15ms
AC220V 2A AC220V 0.5A DC30V 0.5A
Capacity
Reset On Delay: Max. 5ms Off Delay: Max. 5ms Relay output (resistance load) (cos =0.4) (L/R=7ms)
Output NPN open collector or 1a contact (depending on the model) Durability Min. 100,000 contacts Max. 200,000 contacts Max. 200,000 contacts
KCN-B

Notes: 1. Start signal is required for the timer to be activated.

2. The timer starts with a delay of up to one second when activated
by power input.
3. The timer value is written to the internal EEPROM when the power
is turned off of the ENT key is pressed. The EEPROM allows up to
KCN-T

Output mode diagrams 100,000 writes. Avoid turning the power off more than necessary.

Mode A On Delay Mode B Off Delay

Addition Subtraction Addition Subtraction
SET SET
KCY

0 0

Start Start

Reset
KCX

Reset

OUT OUT

Mode C One Shot Mode D Flicker

Addition Subtraction Addition Subtraction
KCX-RN

SET SET2

SET1
0

Start 0
KCH-B

Start
Reset
Reset
OUT

OUT

Mode E Accumulation
KCM

B-48
Timer Functions KCN-S/KCN-W

Electronic
Counters
Wiring Diagrams
KCN-4SR KCN-4ST
Sensor power Sensor power Sensor power Sensor power
DC24V 0V C/T DC24V 0V C/T
15mA Start 15mA Start

R Reset input R Reset input

KCN-A
AC AC AC AC
100V 200V 100V 200V

KCN-A
OUT OUT 0V
Relay output DC output Common output

KCN-4SR-C KCN-4ST-C
Common input Common input
0V C/T 0V C/T

KCN-S/W
Start Start

R Reset input R Reset input

KCN-B
OUT OUT 0V
Relay output DC power DC24V DC output Common output DC power DC24V

KCN-T
Dimensions of To use the timer option, connect the 0V pin and the
C/T pin before turning the power on.
6.3

Terminal Block
8.5

Wire section: 0.25 to 1.65 mm2

1.7

10.55

Conforming crimped contact: 1.25-3

5.2

KCY
7.62 M3 screw

1.32 6.3 1.32

I/O Circuit Diagrams

AC Power DC Power

KCX
For relay For relay
Sensor Internal power output DC24V output
power 2 source 24V
2 Internal circuit
source
DC24V ON for nagative input 10 ON for negative input 10 KCX-RN
OUT OUT

11 13 11

5V 5V
KCH-B

3.3k 3.3k

Start
Start 3 3
15k 15k
10 OUT 10 OUT
5V 5V
KCM

3.3k 3.3k

Reset 7 Reset 7
15k 15k

0V 5 11 0V 0V 5 11 0V

B-49
 KCN-S/KCN-W Timer Functions
Electronic
Counters

Input Wiring Examples (start and reset)

Proximity switch with voltage output or PNP open collector output Proxoimity switch with NPN open collector output

Input logic: Positive (voltage) input(pos) Input logic: Negative (no voltage) input (neg)

2 24V sensor power 2 24V sensor power

Brown Brown
(Red) (Red)
KCV

Start Black Start Black

(White) (White)
3 Start signal input 3 Start signal input

Reset Black Reset Black

KCN-A

(White) (White)
7 Reset signal input 7 Reset signal input

Black Black
(White) (White)
KCN-S/W

5 0V 5 0V

6 Counter/Timer switch 6 Counter/Timer

switch
KCN-B

Recommended proximity switch: APS - -T E2 Recommended proximity switch: APS - -N E

DC 2-wire proximity switch Switch or relay

Input logic: Negative (no voltage) input (neg) Input logic: Positive (voltage) input (pos) Input logic: Negative (no voltage) input (neg)
KCN-T

2 24V sensor power 2 24V sensor power 2 24V sensor power

Start Start switch Start switch

KCY

3 Start signal input 3 Start signal input 3 Start signal input

Reset Reset switch Reset switch

7 Reset signal input 7 Reset signal input 7 Reset signal input
KCX

5 0V 5 0V 5 0V
KCX-RN

6 Counter/Timer 6 Counter/Timer switch 6 Counter/Timer

switch switch
KCH-B

Recommended proximity switch: APS - -Z

Output Wiring Examples

NPN open collector output Relay output
KCM

Compatible with relay

drive
OUT 10 Load 10 Load

MAX.100mA
OUT

0V 11 11
Load power rated at 24 V

B-50
 Timer Functions KCN-S/KCN-W

Electronic
Counters
Front Panel Layout and Description
Front panel
Count (zero-suppressed)
Character height: 13 mm
Initial settings are displayed in the Setup mode.

Preset value
Initial settings are displayed

KCN-A
in the Setup mode.

Measurement unit
H:M: hours: minutes
M:S: minutes: seconds

KCN-A
S: seconds
Output status
Flicker mode: 1- or 2-step

Reset key
Resets initial settings in the

KCN-S/W
MODE
Setup mode.
Response time: 0.5 second RST ENT ENTER key:
Used to store settings.

MODE key:
Used to change display mode or operation

KCN-B
mode. Press this key and the key at the key:
same time to change operation mode Right arrow key: Used to select a digit or set
between Run and Setup. Press this key to shift one digit to the right. its value.

KCN-T
Operating procedures
Switching between Setup mode and Run mode Initializing the timer

Operation mode Select operation mode

Power on Run mode Setup mode
t-dtr

KCY
Press the MODE key and the key at the same time for at least *
MODE u p d n
addition subtraction
0.5 second.
Press the MODE key and the key at the same time for at least
Input logic Select input logic
0.5 second, or leave the system in the Setup mode for one minute.
signl
*

KCX
MODE p o s n e g
negative
Changing a preset value positive
power input power input

Mode A B C E Mode D Output mode Select output mode

t-op KCX-RN
*
MODE a b c d e
Press the MODE key to
MODE select SET2 or SET1.
Timer range Select timer range
range
MODE n.
n n n* n n n. n n n n .
n nnnn nnnn
KCH-B

Select digit S S S M:S H:M

Reset key Select reset key mode

reset
Select new value MODE *
0 1 2 3 4 5 6 7 8 9 e n a b d i s a
enable reset key disable reset key
KCM

ENT Store new value

Notes:
1. After you change a current setting, always press the ENT key
to store the new value.
2. indicates a value set at delivery.
3. After you change an initial setting, always press the RST key
to reset the count.

B-51
 KCN-S/KCN-W Counter/Timer Functions
Electronic
Counters

List of Error Codes

Error code
Description Possible cause
Count display Preset display
f f f f f f Preset value Counter overflow Count has exceeded upper limit.
- f f f f f Preset value Counter underflow Count has decreased below lower limit.
p s e t Preset value divided by prescale exceeds count range.
p s e t 1 Preset memory data error The error code is followed by 1 or 2 to indicate SET1 or
KCV

p s e t 2 SET2 error.
s p e e d Counting speed memory data error
c - o p Output mode memory data error
o u t - t 1 Output duration memory data error
KCN-A

e r r o u t - t 1 2 OUT1 output duration memory data error A memory data error occurs when the current settings do
o u t - t 2 2 OUT2 output duration memory data error not produce a meaningful result.

s c a l e Prescale memory data error

KCN-S/W

p o i n t Decimal point memory data error

t - o p 1 Timer output mode memory data error
r a n g e 1 Timer range memory data error
1: KCN-S only 2: KCN-W only
KCN-B

Solving errors Notes:

The counter continues counting even after an overflow or underflow
For an overflow or underflow, press the RST key to reset the counter and has occurred. This is performed in the range of -2147483.648 to
clear the error code. 2147483.647.
For any other errors, press the ENT key to clear the error code then make The counter is self-checked for errors when its power is turned on.
When an error occurs, counting and display are disabled except for
KCN-T

the current settings.

overflow and underflow.

Settings at delivery Important

Using a relay, bring the power voltage quickly to the rated level.
KCY

Counter The KCN-W counters integrate a switching source circuit. Starting the counter
Set value causes a surge current to flow into the circuit and may prevent counter operation.
Item
KCN-S KCN-W Use a power source with a sufficient capacity to prevent the surge current.
First setting 1000 Keep the source voltage in the 20 to 30 V range for DC 2-wire proximity switch.
After changing initial settings, always press the RST key to reset the counter.
KCX

Second setting 5000

Counting speed 30cps To use the counter as timer, connect the common input (sensor power) terminal 5
Operation Addition/subtraction separate inputs to the Counter-Timer switch terminal 6 then turn the power on.
Count memory Power-on reset After you change the timer range from " S" to " M:S" or " H:M", check that the
Counter mode Addition second digit of the preset value is set to a number less than 6. If necessary, correct
KCX-RN

Input mode Negative the value to prevent a preset error.

Preset mode Dual preset When you switch the function from timer to counter, re-enter the initial settings
Output mode Mode 1 and preset value.
OUT 2 output duration 100ms Any changed preset value during counting is enabled by pressing the ENT key.
OUT 1 output duration 100ms For maintenance purposes, keep records of the initial settings and preset values.
KCH-B

Prescale 1.000 During counting, any change to a preset value become. Avoid using the counter
Decimal point nnnnnh. in the environments where:
Reset key Enabled (1)Ambient temperature is above 50 or below 10 .
Timer (2)Ambient humidity exceeds 85 , or abrupt temperature changes may cause
dewing.
Item Set value
KCM

(3)The operation may be affected by dust, metal chips, corrosive gases or other
First setting 10.00
harmful objects.
Second setting 50.00
(4)The machine is exposed to direct sunlight.
Operation Addition
(5)You anticipate vibration or shock.
Input logic Negative
Keep the following in mind when wiring:
Timer mode Mode A
(1)The wiring to the counter should be separated from power line.
Timer range n n. n n (s)
(2)Keep the counter body and wiring away from noise sources.
Reset key Enabled
(3)Never use a free terminal as a relay.
Isolate the counter from the control circuit before testing insulation voltage and
resistance.

B-52
 KCN-S/KCN-W

Electronic
Counters
External Dimensions (in mm)

Mounting 90 (for AC power)

bracket

KCN-A
48

44.5

KCN-A
Protective cover 1 to 5 mm thick panel Depth

KCN-S/W
48 45 10 DC power 61mm
(50.4) 6 55 (for DC power) AC power 96mm
63

KCN-B
Boring dimensions for Installation
1. Horizontally aligned handles 2. Vertically aligned handles

Mounting
70 or more 55 or more 48 mm for tight alignment without
bracket

KCN-T
the protective cover

Square
45 +0.3

hole
0
aligned tight.
May be
48 +0.2

KCY
0

70 or more

45 +0.3
0

Protective cover

KCX
KCX-RN
KCH-B
KCM

B-53