82
new:
DIN 48 SIZE
LCD ELECTRONIC COUNTER
Scale factor, power supply
LC4H-S
NEW FEATURES:
1. Scale Factor:
A scale factor can be entered into LC4H-SV
series. After that one count shows the real
unit/value of the machine/application.
2. 12 V DC Power Supply:
The 100 – 240 V AC types are equipped
with a 12 V DC power supply 100 mA.
It is possible to connect photo-sensors,
proximity switches or encoders without addi-
tional devices.
3. Voltage Signal Input:
PNP input types are available.
FEATURES
1. Bright and Easy-to-Read Display
A brand new bright 2-color backlight LCD
display. The easy-to-read screen in any
location makes checking and setting pro-
cedures a cinch.
2. Simple Operation
Seesaw buttons make operating the unit
even easier than before.
3. Conforms to IP66’s Weather
Resistant Standards
The water-proof panel keeps out water
and dirt for reliable operation even in
poor environments.
4. Screw terminal and Pin Type are
Both Standard Options
The two terminal types are standard
options to support either front panel
installation or embedded installation.
5. 4-digit or 6-digit display
Two sizes of displays are offered for you
to choose the one that suits your needs.
6. Conforms With EMC and Low
Voltage Directives
Conforms with EMC directives
(EN50081-2/EN50082-2) and low-volt-
age directives (VDE0435/Part 2021) for
CE certification vital for use in Europe.
R4/T4 systems (4-digit display)
R6/T6 systems (6-digit display)
Pin type Screw terminal type
PRODUCT TYPES
LC4H-SV
* A rubber gasket (ATC18002) and a mounting frame (AT8-DA4) are included.
mm inch
Digit Count speed Output Operation voltage Power down Additional function Terminal P/N
insurane
Scale Factor 11 Pin LC4H-PS-R4-AC240V
100-240 V AC Scale Factor Screw LC4H-PS-R4-AC240VS
with 12V DC power supply Scale Factor / Voltage Signal Input 11 Pin LC4H-PSV-R4-AC240V
Relay Scale Factor / Voltage Signal Input Screw LC4H-PSV-R4-AC240VS
Scale Factor 11 Pin LC4H-S-R4-24V
4Scale Factor Screw LC4H-S-R4-24VS
Scale Factor / Voltage Signal Input 11 Pin LC4H-SV-R4-24V
12-24 V DC / 24 V AC Scale Factor / Voltage Signal Input Screw LC4H-SV-R4-24VS
Scale Factor 11 Pin LC4H-S-T4-24V
Transistor Scale Factor Screw LC4H-S-T4-24VS
30 Hz (cps) Scale Factor / Voltage Signal Input 11 Pin LC4H-SV-T4-24V
5 kHz (kcps) Available Scale Factor / Voltage Signal Input Screw LC4H-SV-T4-24VS
switchable Scale Factor 11 Pin LC4H-PS-R6-AC240V
100-240 V AC Scale Factor Screw LC4H-PS-R6-AC240VS
with 12V DC power supply Scale Factor / Voltage Signal Input 11 Pin LC4H-PSV-R6-AC240V
Relay Scale Factor / Voltage Signal Input Screw LC4H-PSV-R6-AC240VS
Scale Factor 11 Pin LC4H-S-R6-24V
Scale Factor Screw LC4H-S-R6-24VS
6Scale Factor / Voltage Signal Input 11 Pin LC4H-SV-R6-24V
12-24 V DC / 24 V AC Scale Factor / Voltage Signal Input Screw LC4H-SV-R6-24VS
Scale Factor 11 Pin LC4H-S-T6-24V
Transistor Scale Factor Screw LC4H-S-T6-24VS
Scale Factor / Voltage Signal Input 11 Pin LC4H-SV-T6-24V
Scale Factor / Voltage Signal Input Screw LC4H-SV-T6-24VS
48
1.890
48
1.890
64.5
2.539
02/2003
83
LC4H-S
Part names
Specifications
Item Ralay output type
AC type
100 to 240 V
DC/AC type
12 to 24 V DC/24 V AC
50/60 Hz common
Max. 10 V A
5 A 250 V AC (resistive load)
Addition (UP)/Subtraction (DOWN)/Direction (DIR)/Individuality (IND)/Phase (PHASE)
5 modes selectable by DIP switches
30 Hz, 5 kHz (selectable by DIP switches)
16.7 ms at 30 Hz/0.1 ms at 5 kHz ON time: OFF time = 1:1
Min. input signal width: 1 ms, 20 ms (selected by DIP switches)
Min. input signal width: 20 ms
Contact, Open collector input/DC two-wire system sensor Input impedance: 1 kΩor less, Input residual voltage: 2 V or less,
Open impedance: 100 kΩor less, Max. energized voltage: 40 V DC
HOLD-A, HOLD-B, HOLD-C, SHOT-A, SHOT-B, SHOT-C, SHOT-D, 7 modes selectable by DIP switches
1 s, 0.5s, 0.2s, 0.1s, 0.05, 0.01s
7-segment LCD, Counter value (backlight red LED), Setting value (backlight yellow LED)
4-digit display type –999 to 9999 (0 to 9999 for setting)
6-digit display type –99999 to 999999 (0 to 999999 for setting)
EEP-ROM (Overwriting times: 105ope. or more)
12 V DC (±10%) 100 mA Max. —
1 Form C
100 mΩ(at 1 A 6 V DC)
Ag alloy/Au flush
2.0 ×107ope. (Except for switch operation parts)
1.0 ×105ope. (At rated control voltage)
85 to 264 V AC 10.8 to 26.4 V DC, 20.4 to 26.4 V AC
Between live and dead metal parts: 2,000 Vrms for 1 min (pin type)
Between input and output: 2,000 Vrms for 1 min
Max. 65° C (under the flow of nominal operating current at nominal voltage)
10 to 55 Hz (1 cycle/min), single amplitude: 0.35 mm .014 inch (10 min on 3 axes)
10 to 55 Hz (1 cycle/min), single amplitude: 0.75 mm .030 inch (1 h on 3 axes)
1 Form A (Open collector)
—
—
—
1.0 ×107ope. (At rated control voltage)
12 to 24 V DC/24 V AC
Max. 3 W
100 mA, 30 V DC
Transistor output type
DC/AC type
Rating
Contact
Life
Electrical
Mechanical
Operating
conditions
Rated operating voltage
Rated frequency
Rated power consumption
Rated control capacity
Input mode
Max. counting speed
Counting input (input 1, input 2)
Reset input
Lock input
Input signal
Output mode
One shot output time
Indication
Digit
Memory
0.001 to 9.999 (4-digit type), 0.001 to 99.999 (6-digit type)
Pre-scaling
Can be set to three digits
Decimal point
Power for senser
Contact arrangement
Initial contact resistance
Contact material
Mechanical (contact)
Electrical (contact)
Operating voltage range
Initial withstand voltage
Between live and dead metal parts: Min. 100 MΩ(pin type)
Between input and output: Min. 100 MΩ
Initial insulation resistance
(At 500 V DC)
Temperature rise
Functional
Destructive
Vibration
resistance
Min. 98 m/s2(4 times on 3 axes)
Min. 294 m/s2(5 times on 3 axes)
–10° C to 55° C +14° F to +131° F
Max. 85 % RH
860 to 1,060 h Pa
11-pin/screw terminal
IP66 (front panel with a rubber gasket)
Functional
Destructive
Ambient temperature
Ambient humidity
Air pressure
Connection
Protective construction
Shock
resistance
• 4-digit display type
• 6-digit display type
DOWN
UP
SET/ LOCK
RESET
LOCK
RST
OP.
LC4HCOUNTER
ON
87654321
RESET
LOCK
RST
OP.
LC4HCOUNTER
ON
87654321
SET/ LOCK
Controlled output indicator
Reset indicator
Lock indicator
Reset switch
Set/lock switch
Counter display
Set value display
Up keys
Down keys
DIP switches
(Same for screw terminal type)
Controlled output indicator
Reset indicator
Lock indicator
Reset switch
Set/lock switch
Counter display
Set value display
Up keys
DIP switches
(Same for screw terminal type)
02/2003
84
Dimensions (units: mm inch)
• Screw terminal type
• Dimensions for embedded installation (with adapter installed)
COUNTER LC4H
UP
DOWN
RESET
SET/LOCK
s
OP.
5.5
.217 64.5
2.539
81.9*
3.224*
7.5
.295
5.5
.217
* With power supply for sensor * With power supply for sensor
73*
2.874*
87.5*
2.445*
70.1
2.760 14.5
.571
55.6
2.189
(48
(1.890
((44.5)
((1.752) ((44.5)
((1.752)
(48
(1.890
COUNTER LC4H
RESET UP
DOWN
OP.
RST
LOCK
LC4H
COUNTER
RESET
1
OP.
RST
LOCK
SET/LOCK SET/ LOCK
Installation frame for
embedded installations
ATA4811 (supplied)
Installation frame for
embedded installations
ATA4811 (supplied)
Installation panel
Rubber gasket
ATC18002 (supplied) Installation panel
Rubber gasket
ATC18002 (supplied)
11 pins cap:
ATA4861 (sold separately)
11 pin type
48
1.890 80.9
3.185
1
.039 63.5
2.500 48
1.890
90
3.543104.5
4.114
48
1.890
48
1.890
50
1.969
50
1.969
66
2.598
66
2.598
(44.5
(1.752
* With power supply for sensor * With power supply for sensor
Pin type
Pin type
Screw terminal type
Screw-down terminal type
Terminal layouts and Wiring diagrams
• Pin type
Relay output type Transistor output type Relay output type
* With power supply for sensor
* With power supply for sensor
Transistor output type
Relay output type Transistor output type Relay output type Transistor output type
A
DIN rail terminal block
11-pin type: AT8-DF11K
(sold separately)
When n units are attached in a continuous series,
the dimension of (A) is:
Device installation rail
ATA48011
(sold separately)
Min. 80
3.150
Min. 80
3.150
95.5 (112.9)
3.760 (4.445)
45-0.6
0
1.772-.024
0
45-0.6
0
1.772-.024
0
45-0.6
0
1.772-.024
0
A = (48 × n – 2.5) –0.6
0
* With power supply for sensor
NO
NC
3
5
4
211110
9
8
7
6
3
5
4
211110
9
8
7
6NO
NC
3
5
4
211110
9
8
7
6
0 V
DC 12V
100mA Max.
3
5
4
211110
9
8
7
6
0 V
DC 12V
100mA Max.
Operating
voltage
Reset
Lock
Input 2
Input 1
Operating
voltage
Reset
Lock
Input 2
Input 1
Operating
voltage
Reset
Lock
Input 2
Input 1
Operating
voltage
Reset
Lock
Input 2
Input 1
–
~
+
~
–
~
+
~~~ ~~
54321
109876
NO
NC
54321
109876
54321
109876
NO
NC
11
0 V
DC 12V
100mA Max. 54321
109876
11
0 V
DC 12V
100mA Max.
Operating
voltage
Reset
Lock
Input 2
Input 1
Operating
voltage
Reset
Lock
Input 2
Input 1
Operating
voltage
Reset
Lock
Input 2
Input 1
Operating
voltage
Reset
Lock
Input 2
Input 1
–
~
+
~
–
~
+
~~~ ~~
LC4H-S
Note) For connecting the output leads of the transistor output type, refer to 5) Transistor output on page 99.
(* 6-digit display type has the same dimensions.)
•
Dimensions for front panel installations
•
Installation panel cut-out dimensions
The standard panel cut-out dimensions are shown
below. Use the installation frame (ATA4811) and
rubber gasket (ATC18002).
• For connected installations
Note 1: The installation panel thickness should be between 1
and 5 mm .039 and .197 inch.
Note 2: For connected installations, the waterproofing ability
between the unit and installation panel is lost.
02/2003
85
Setting the operation mode and counter
Setting procedure 1) Setting the operation mode (input mode and output mode)
Set the input and output modes with the DIP switches on the side of the counter.
DIP switches
Setting procedure 2) Setting the set value
Set the set value with the UP and DOWN keys on the front of the counter.
Front display section
DIP switch
Item DIP switch No.
1 2 3
ON ON ON SHOT-A
OFF OFF OFF SHOT-B
ON OFF OFF SHOT-C
OFF ON OFF SHOT-D
ON ON OFF HOLD-A
OFF OFF ON HOLD-B
ON OFF ON HOLD-C
OFF ON ON —
Output mode
Output mode Refer to table 1
1
2
3
Minimum reset input signal width 20 ms 1 ms
4
Maximum counter setting 30 Hz 5 kHz
5
Input mode Refer to table 2
6
7
8
ONOFF
DIP switch No.
6 7 8
ON ON ON Addition input
OFF OFF OFF Subtraction input
ON OFF OFF Directive input
OFF ON OFF Independent input
ON ON OFF Phase input
OFF OFF ON —
ON OFF ON —
OFF ON ON —
(See note 1)
(See note 1)
(See note 1)
(See note 1)
Input mode
Notes:1) The counter and set value displays will display DIP Err.
Notes:2) Set the DIP switches before installing the counter on the panel.
Notes:3) When the DIP SW setting is changed, turn off the power once.
Notes:4) The DIP switches are set as ON before shipping.
• 4-digit display type
QCounter display
WSet value display
EControlled output indicator
RReset indicator
TLock indicator
YUP keys
Changes the corresponding
digit of the set value in the
addition direction (upwards)
UDOWN keys
Changes the corresponding digit of the set
value in the subtraction direction (down-
wards)
IRESET switch
Resets the counting value and the output
OSET/LOCK switch
This is used to handle pre-scaling values,
one-shot times, decimal point position set-
tings, and key lock operations (to disable Up
key, Down key, and Reset key operations).
9
8
5
4
7
6
2
1
3
DOWN
UP
SET/LOCK
RESET
LOCK
RST
OP.
LC4HCOUNTER
RESET
LOCK
RST
OP.
LC4HCOUNTER
8
7
5
4
6
2
1
3
SET/LOCK
• 6-digit display type
QCounter display
WSet value display
EControlled output indicator
RReset indicator
TLock indicator
YUP keys
Changes the corresponding digit of the set
value in the addition direction (upwards)
URESET switch
Resets the counting value and the output
ISET/LOCK switch
This is used to handle pre-scaling values,
one-shot times, decimal point position set-
tings, and key lock operations (to disable Up
key, Down key, and Reset key operations).
Table 1: Setting the output mode
Table 2: Setting the input mode
LC4H-S
Setting procedure 3) Setting the input mode
The input mode is set using the key switch in the [Display] section on the front of the counter.
• Decimal point position setting mode
QHolding down the [SET/LOCK] key, press the key for the second digit to access the decimal point position setting mode.
WWhen the setting mode has been accessed, release the [SET/LOCK] key.
Example) 6-digit type
Decimal point position setting mode display
(Example shows default value displayed)
02/2003
86
Changing the set value
CAUTIONS FOR USE
For more information regarding the cautions for use of LC4H series counter, refer to page 118 “LC4H series CAUTIONS FOR USE”.
1. It is possible to change the set
value with the up and down keys (4-
digit type only) even during counting.
However, be aware of the following
points.
1) If the set value is changed to less than
the count value with counting set to the
addition direction, counting will continue
until it reaches full scale (9999 with the
4-digit type and 999999 with the 6-digit
type), returns to zero, and then reaches
the new set value. If the set value is
changed to a value above the count
value, counting will continue until the
count value reaches the new set value.
2) Suppose that thew counter is preset to
count down. Whether a preset count-
down value is smaller or larger than the
count value, the counter counts down to
“0 (zero)”.
2. If the set value is changed to “0,”
the unit will not complete count-up. It
starts counting up when the counting
value comes to “0 (zero)” again.
1) Up-count (addition) input
When counting is set to the addition
direction, counting will continue until full
scale is reached (9999 with the 4-digit
type and 999999 with the 6-digit type),
return to zero, and then complete count-
up.
2) Down-count (subtraction) input
When counting is set to the subtraction
direction, counting will continue until full
scale is reached (-999 with the 4-digit
type and -99999 with the 6-digit type),
and then the display will change to
with the 4-digit type and
with the 6-digit type.
The counting value does not become “0
(zero)” and so the counter does not
count up.
3) Directive, independent, and phase
inputs
The counting value is counted up or
down to any number other than “0” once.
When it comes to “0 (zero)” again, the
counter starts counting up.
EThe decimal point is set using the [UP] and [DOWN] keys to specify the 2nd, 3rd, and 4th digits (this applies only to 4-digit
models).(The 1st digit is set using the [UP] key or [DOWN] key in settings where there is no decimal point (this applies
only to 4-digit models).)
• Setting the pre-scaling value
QHolding down the [SET/LOCK] key, press the key for the first digit to access the pre-scaling value setting mode.
Example) 4-digit type Example) 6-digit type
WWhen the setting mode has been accessed, release the [SET/LOCK] key.
EUse the [UP] or [DOWN] key to set the pre-scaling value (this applies only to 4-digit models).
Select either: 0.001 to 9.999 (4-digit) or 0.001 to 99.999 (6-digit)
RPress the [RESET] key to set the displayed pre-scaling value and return to normal operation.
LC4H-S
Example) 6-digit type
Example shows 2nd digit displayed using [UP] key
RPress the [RESET] key to set the displayed decimal point position and return to normal operation.
Pre-scaling value setting mode displayed
(Example shows default values displayed)
Example) 6-digit type
One-shot output time setting mode displayed
(Example shows default value displayed)
• Setting the one-shot output time
QHolding down the [SET/LOCK] key, press the key for the third digit to access the one-shot output time setting mode.
WWhen the setting mode has been accessed, release the [SET/LOCK] key.
EEach time the 1st-digit [UP] key is pressed, the one-shot output time changes in the following sequence, moving to the
right:
(With a 4-digit type, the [DOWN] key can also be used to move to the left.)
RPress the [RESET] key to set the displayed one-shot output time and return to normal operation.
→ 1 s → 0.5 s → 0.2 s → 0.1 s → 0.05 s → 0.01 s
02/2003
87
Operation mode
1. Input mode
For the input mode, you can choose one of the following five modes
• Addition
• Subtraction
• Directive
• Independent
• Phase PHASE
IND
DIR
DOWN
UP
Input mode
Addition
UP
Subtraction
DOWN
Directive
DIR
Independent
IND
Phase
PHASE
Operation *Minimum input signal width 30 Hz: 16.7 ms; 5 kHz: 0.1 ms
IN1 or IN2 works as an input block
(gate) for the other input.
• Example where IN1 is the counting input and IN2 is the input block (gate).
• Example where IN2 is the counting input and IN1 is the input block (gate).
* “A” must be more than the minimum input signal width.
* “A” must be more than the minimum input signal width.
* “B” must be more than the minimum input signal width.
* IN1 and IN2 are completely independent, so there is no restriction on signal
timing.
IN1 is the counting input and IN2 is the
addition or subtraction directive input.
IN2 adds at L level and subtracts at H
level.
IN1 is addition input and IN2 is subtrac-
tion input.
Addition when the IN1 phase advances
beyond IN2, and subtraction when the
IN2 phase advances beyond IN1.
0 1 2 3 n-3 n-2 n-1 n
n n-1 n-2 n-3 3 2 1 0
H
L
H
L
IN1
IN2
Counting (subtraction)
Counting (addition)
Blocked
AA AA
Reset
Count-up completed
AA AA
n n-1 n-2 n-4n-3 01
012 43nn-1
H
L
H
L
IN1
IN2
Counting (subtraction)
Counting (addition)
BlockedBlocked
Reset
Count-up completed
H
L
H
L
Counting
IN1
IN2
Addition Subtraction Addition
AA AA
012 34321012 34
Reset
Counting
IN1
IN2
H
L
H
L
01 2 343 2 11223
Reset
Counting
IN1
IN2
BB
001 2 123
Reset
H
L
H
L
Phase advance Phase retard
LC4H-S
02/2003
88
2. Output mode
For the output mode, you can choose one of the following seven modes
• Maintain output/hold count
• Maintain output/over count I
• Maintain output/over count II
• One shot/over count
• One shot/recount I
• One shot/recount II
• One shot/hold count SHOT-D
SHOT-C
SHOT-B
SHOT-A
HOLD-C
HOLD-B
HOLD-A
Output mode
Maintain output
Hold count
HOLD-A
Operation (Example when input mode is either addition or subtraction)
Output control is maintained after
count-up completion and until resetting.
During that time, the count display does
not change from that at count-up com-
pletion.
* n: Set value
Maintain output
Over count I
HOLD-B
Output control is maintained after
count-up completion and until resetting.
However, counting is possible despite
completion of count-up.
* n: Set value
Maintain output
Over count II
HOLD-C
Output control is maintained after
count-up completion and until the next
signal enters. However, counting is
possible despite completion of count-
up.
* n: Set value
One shot
Over count
SHOT-A
Output control is maintained after
count-up completion for one shot output
time. Counting is possible despite com-
pletion of count-up.
* n: Set value
One shot
Recount I
SHOT-B
Output control is maintained after
count-up completion for one shot output
time. Counting is possible despite com-
pletion of count-up. However, reset
occurs simultaneous with completion of
count-up. While output is being main-
tained, restarting of the count is not
possible * n: Set value
One shot
Recount II
SHOT-C
Output control is maintained after
count-up completion for one shot output
time. Counting is possible despite com-
pletion of count-up. However, reset
occurs simultaneous with output OFF.
* n: Set value
One shot
Hold count
SHOT-D
Output control is maintained after
count-up completion for one shot output
time. During that time, the count display
does not change from that at count-up
completion. Reset occurs simultaneous
with output OFF.
* n: Set value
Counting (addition)
Counting (subtraction)
Counting able/unable
Output control OFF
ON
n-3 n-2 n-1 n
321 0
Able Unable
n-2 n-1 n n+2n+1
210 -2-1
Able
Counting (addition)
Counting (subtraction)
Counting able/unable
Output control OFF
ON
n-2 n-1 n n+2n+1
210 -2-1
Able
Counting (addition)
Counting (subtraction)
Counting able/unable
Output control OFF OFF
ON
n-2 n-1 n n+2n+1
210 -2-1
Able
Counting (addition)
Counting (subtraction)
Counting able/unable
Output control OFF OFF
ON
Approx. 1s
n-2 n-1 0 21
2 1 n n-2n-1
Reset (automatic)
Able
Counting (addition)
Counting (subtraction)
Counting able/unable
Output control OFF OFF
ON
Approx. 1s
n-1 n n+1 10
1 0 -1 n-1n
Reset (automatic)
Able
Counting (addition)
Counting (subtraction)
Counting able/unable
Output control OFF OFF
ON
Approx. 1s
n-1 n 10
1 0 n-1n
Reset (automatic)
Approx. 1s
AbleAble Unable
Counting (addition)
Counting (subtraction)
Counting able/unable
Output control OFF OFF
ON
LC4H-S
02/2003
89
LC4H-S
Input connections
What is the prescale function?
The prescale function converts the count into an actual
value (amount) and displays it.
Example
For a device that outputs 500 pulses when 1 m has been fed:
1. Set decimal position to the last 3rd place.
2. Set the prescale value to 0.002 (1/500).
• Signal input type
•) Open collector •) For voltage output
0V
0V
Lock
input
Input
2
Input
1
Reset
input
12 V DC
output
0V
Lock
input
Input
2
Input
1
Reset
input
12 V DC
output
Output
(PC, sensor etc.)
Output
(Photoelectric sensor,
proximity sensor, etc.)
11-pin type
Screw-down
terminal type
11-pin type
Screw-down
terminal type
12 V DC
0V
+
–
6
3
7
4
8
5
9
6
10
7
11
1
7689
4356
1110
71
12 V DC
+
–
0V
Lock
input
Input
2
Input
1
Reset
input
Relay, switches etc.
11-pin type
Screw-down
terminal type 6
3
987
10
6547
0V
Input
2
Input
1
12 V DC
output
11-pin type
Screw-down
terminal type
0V
B
phase
A
phase
12 V DC
89
56
11
1
6
3
Input 1, input 2, and reset input specifications
• Impedance during short-circuit: 1 kΩmax.
(At 0 Ω, the outflow current is approximately 12 mA.)
• Residual voltage during short-circuit: 2 V max.
• Impedance when released: 100 kΩmin.
• Max. applied voltage: 40 VDC max.
Lock input specifications
• Impedance during short-circuit: 1 kΩmax.
(At 0 Ω, the outflow current is approximately 1.5 mA.)
• Residual voltage during short-circuit: 2 V max.
• Impedance when released: 100 kΩmin.
• Max. applied voltage: 40 DVC max.
• The contact relay should be one which can open/close 5 V,
1.5 mA.
* There is no 12 V DC with 12 - 24 V DC/24 V AC types.
Dual-line sensor specifications
• Leakage current: 1.5 mA max.
• Breaker capacitance: 5 mA min.
• Residual voltage: 2.0 V max.
• Usable voltage: Runs on 10 VDC
* If a dual-line sensor is connected to a 12 - 24 VDC/24 VAC type,
24 VDC (21.6 to 26.4 VDC) and 24 VAC (21.6 to 26.4 VAC)
should be applied to the power supply voltage of the counter.
6
3
8
5
9
6
10
7
0V
•) For a dual-line sensor
0V
Input
2
Input
1
Reset
input
11-pin type
Screw-down
terminal type
+
—
COUNTER LC4H
UP
DOWN
RESET
SET/LOCK
COUNTER LC4H
UP
DOWN
RESET
SET/LOCK
1m
3.281ft
Encoder
1 pulse
500 pulses
Prescale value: 0.002
Can be set to
easy-to-understand
unit.
•) PNP transistor type•) Contact input •) For a rotary encoder
sensor and others
DC12V
OUTPUT
0V
3 5 6 7 1
6 8 9 10 11
11 Pin type
Screw terminal type
0 V
Input 2
Input 1
Reset input
DC12V output
02/2003
98
PRECAUTIONS DURING USAGE
1. Terminal wiring
1) When wiring the terminals, refer to the
terminal layout and wiring diagrams and
be sure to perform the wiring properly
without errors.
2) For embedded installation applica-
tions, the screw-down terminal type is
recommended.
Use either the rear terminal block (AT8-
RR) or the 8P cap (AD8-RC) for the 8-
pin type, and the 11P cap (AT8-DP11)
for the 11-pin type. Avoid soldering
directly to the round pins on the unit.
For front panel installation applications,
use the 11-pin type DIN rail terminal
block (ATC18004).
3) After turning the unit off, make sure
that any resulting induced voltage or
residual voltage is not applied to power
supply terminals Wthrough U(8-pin
type), Wthrough P(11-pin type) or
and (screw-down terminal type). (If
the power supply wire is wired parallel to
the high voltage wire or power wire, an
induced voltage may be generated
between the power supply terminals.)
4) Have the power supply voltage pass
through a switch or relay so that it is
applied at one time. If the power supply
is applied gradually, the counting may
malfunction regardless of the settings,
the power supply reset may not function,
or other such unpredictable occurrence
may result.
2. Input connections
The power circuit has no transformer.
When an input signal is fed to two or
more counters at once, do not arrange
the power circuit in an independent way.
If the counter is powered on and off inde-
pendently as shown in Fig. A, the coun-
ter's internal circuitry may get
damaged.Be careful never to allow such cir-
cuitry. (Figs. A, B and C show the circuitry for
the 11-pin type.)
2
1
If independent power circuitry must be used,
keep the input contacts or transistors sepa-
rate from each other, as shown in Fig. B.
When power circuitry is not independent,
one input signal can be fed to two or
more counters at once, as shown in Fig. C.
3. Input and output
1) Signal input type
(1) Contact point input
Use highly reliable metal plated contacts.
Since the contact point’s bounce time
leads directly to error in the count value,
use contacts with as short a bounce time
as possible. In general, select Input 1
and Input 2 to have a maximum counting
speed of 30 Hz and to be reset with a
minimum input signal width of 20 ms.
(2) Non-contact point input
Connect with an open collector. Use
transistors whose characteristics satisfy
the criteria given below.
VCEO = 20 V min.
IC= 20 mA min.
ICBO = 6µA max.
Also, use transistors with a residual volt-
age of less than 2 V when the transistor
is on.
* The short-circuit impedance should be
11-pin type
Screw terminal type
3 4 5 6 7
8-pin type 1—5 4 3
6 7 8 9 10
Reset input
Input 1
Input 2
Lock
input
11-pin type
Screw terminal type
34 5 6 7
8-pin type 1—5 4 3
6 7 8 9 10
Reset input
12 to 40V DC
Q
(The above example is for reset input)
11-pin type
Screw terminal type
3 4 5 6 7
8-pin type 1—5 4 3
6 7 8 9 10
Reset input
Input 1
Input 2
Lock
input
LC4H series CAUTIONS FOR USE
10
2
3
(Fig. A)
Input contact
point or transistor
2
3
10
Power
supply
Input
terminal
terminal
Input
10
2
3
3
2
10
(Fig. B)
Input contact
point or transistor
Power
supply
point or transistor
Input contact
terminal
Input
terminal
Input
(Fig. C)
Power
supply
3
3
Input contact
point or transistor
10
2
10
2
terminal
Input
terminal
Input
less than 1 kΩ.
[When the impedance is 0 W, the current
coming from the input 1 and input 2 ter-
minals is approximately 12 mA, and from
the reset input and lock input terminals is
approximately 1.5 mA.]
Also, the open-circuit impedance should
be more than 100 kΩ.
* As shown in the diagram below, from a
non-contact point circuit (proximity
switches, photoelectric switches, etc.)
with a power supply voltage of between
12 and 40 V, the signal can be input
without using an open collector transis-
tor. In the case of the diagram below,
when the non-contact point transistor Q
switches from off to on (when the signal
voltage goes from high to low), the sig-
nal is input.
2) The input mode and output mode
change depending on the DIP switch set-
tings. Therefore, before making any con-
nections, be sure to confirm the opera-
tion mode and operation conditions cur-
rently set.
3) For the power supply of the input
Note: The LC4H-W does not have the lock input
R.
7
Note: The LC4H-W does not have the lock input
R.
7
02/2003
99
4. Output mode setting
The output mode can be set with the
switches on the side of the counter.
Make the DIP switch settings before
installing the counter on the panel.
5. Conditions of usage
1) Avoid locations subject to flammable
or corrosive gases, excessive dust, oil,
vibrations, or excessive shocks.
2) Since the cover of the unit is made of
polycarbonate resin, avoid contact with
or use in environments containing methyl
alcohol, benzene, thinners, and other
organic solvents; and ammonia, caustic
sodas, and other alkaline substances.
3) If power supply surges exceed the val-
ues given below, the internal circuits may
become damaged. Be sure to use surge
absorbing element to prevent this from
happening.
DIP
4) Regarding external noise, the values
below are considered the noise-resistant
voltages. If voltages rise above these
values, malfunctions or damage to the
internal circuitry may result, so take the
necessary precautions.
Noise wave form (noise simulator)
Rise time: 1 ns
Pulse width: 1 µs, 50 ns
Polarity: ±
Cycle: 100 cycles/second
5) When connecting the operation power
supply, make sure that no leakage cur-
rent enters the counter. For example,
when performing contact protection, if
set up like that of diagram A, leaking cur-
rent will pass through C and R, enter the
unit, and cause incorrect operation.
Diagram B shows the correct setup.
6) Long periods of continuous operation
in the count-up completed condition (one
month or more) will result in the weaken-
ing of the internal electrical components
from the generated heat and, therefore,
should be avoided. If you do plan to use
the unit for such continuous operation,
use in conjunction with a relay as shown
in the circuit in the diagram below.
• Surge wave form
[± (1.2 ×50) ms uni-polar full wave voltage]
Operating voltage
Surge voltage (peak value)
AC type 6,000V
DC type
24V AC type
Power supply terminals Input
terminals
AC type DC type
24V AC type
Noise
voltage 1,500V 1,000V 600V
1,000V
Peak value
00 1.2 50
30
50
90
100
Time (µs)
Surge voltage (%)
C
C
CR
(Fig. A)
(Fig. B)
Operation power supply
Leakage current
R
C
Operation power supply
R
R
C
C
RR
Relay Counter Receive output
from contact
at relay R
Load’s
power supply
Inductive load
LC4H counter
Diode rating:
IF (forward current): 1 A
VR (reverse voltage): 600 V
device, use a single-phase or double-
phase insulated power transformer. The
second-phase side must not be ground-
ed.
4) Since the power supply circuitry does
not contain a transformer, be aware that
it is not possible for simultaneous input
from an input contact point or transistor
to a LC4H counter with independent
power supply operation.
5) The input signal is applied by the
shorting of each input terminal with the
common terminal (terminal 1 for 8-pin
type, terminal 3 for 11-pin type and ter-
minal 6 for screw-down terminal types).
Never connect other terminals or volt-
ages higher than DC 40 V, because it
may destroy the internal circuitry.
6) Transistor output
(1) Since the transistor output is insulated
from the internal circuitry by a photo-
coupler, it can be used as an NPN out-
put or PNP (equal value) output. (The
above example is 11-pin type)
(2) Use the diode connected to the out-
Load
Load’s power supply
LC4H counter
{OI
As NPN output
Load
Load’s power supply
LC4H counter
As PNP output
{OI
LC4H counter
Input
terminals
Circuit
Rectifier circuits
Power
supply
Insulated transformer
is necessary
put transistor’s collector for absorbing
the reverse voltage from induced loads.
(LC4H only)
7) When wiring, use shielded wires or
metallic wire tubes, and keep the wire
lengths as short as possible.
Note: With the LC4H 8-pin type and the LC4H-W,
there is no diode between points Iand O.
02/2003
100
Display Contents
Minimum value went below –999
or –99999. See note 1.
Enter reset or RESET
key.
Restart unit (correct DIP
switch settings)
Enter reset, RESET key,
or restart unit.
No change
The values at start-up before the CPU
malfunction occurred.
0
Incorrect DIP switch setting.
Malfunctioning CPU.
Malfunctioning memory. See
note 2.
No change
OFF
Output condition Restoration procedure Preset values after restoration
7. CE Marking Certification
1) EMC directive (89/336/EEC)
As a counter unit, the LC4H series con-
forms to EMC directives. Applicable
standards are EN50081-2 and EN50082-
2.
2) Low voltage directive (73/23/EEC)
In order to satisfy VDE0435/Part 2021,
be sure to adhere to the following instal-
lation conditions and precautions.
(1) The counter uses a non-transformer
power supply and the power supply and
input signal terminals are not insulated.
• When a sensor is connected to the
input circuit, install double insulation on
the sensor side.
• With contact-point inputting, use dou-
ble-insulated relays, etc.
(2) Always connect loads insulated with
basic insulation specifications to the out-
put contact points. The counter unit is
also insulated with basic insulation speci-
fications. The combination of the two sat-
isfies VDE, which calls for double insula-
tion.
(3) For the applied power supply, use
one protected by an over-current protec-
tion device that conforms with EN/IEC
standards (e.g. 250 V, 1 A fuse).
(4) During installation, always use a ter-
minal block or the appropriate sockets.
Do not touch the terminals, or other part
of the counter unit while it is on. Before
installation or removal of the unit, first
verify that no voltage is being applied to
any of the terminals.
(5) Do not use the counter in a safety cir-
cuit. When the unit is being used in a cir-
cuit such as a heater circuit, install a pro-
tection circuit on the machine side.
6. Self-diagnosis function
If a malfunction occurs, one of the following displays will appear.
Note 1: When the counter value goes below the minimum value during any of the subtraction, directive, independent, or phase input modes.
Note 2: Includes the possibility that the EEPROM’s life has expired.
or
02/2003