1. 8.7 mm .343 inch Character Height
(previously 7 mm)
Easy-to-read character height increased
from 7 mm to 8.7 mm .276 inch to .343
inch.
8.7mm
.343inch
2. Plenty of Digits
8 digits
3. Counting Speed Switchable
between 2 kHz and 30 Hz
4. Panel Mounting Type Features
2 Installation Methods
Comes with very easy one-touch
installation type and also installation
frame type that uses the bracket on the
timer/counter. Choose a method that
suits the application.
5. Battery Replacement Easy on
Environment
To replace battery simply remove body
for the one-touch installation type, and
remove battery lid for the installation
frame type.
LC2H
Counters
6. Screw Terminals Designed for
Safety
Built in finger protection.
7. Panel Covers Replacable
(Standard color is ash gray.)
Change the panel design by replacing
with a black panel cover.
8. Conforms to IP66 Protective
Construction (Only installation frame
type.) (Front panel surface)
9. Input Methods
1) Non-voltage input method
2) Voltage input method
3) Free voltage input method
10. Backlight Type Added to Series
and Now 2-color Switchable (green/
red)
Easy viewing even in dark places and
switchable between green and red
(Voltage input type).
External power supplyNot required (built-in battery)
Max. counting speed2 kHz/30 Hz (Switchable by switch)30 Hz (Note 2)
Min. input signal width
(ON: OFF = 1:1)
Input method (signal)
Count
input
Input impedance
Residual voltageMax. 0.5 V——
Min. input signal width200 ms
Input method (signal)
Reset
input
Input impedance
Residual voltageMax 0.5 V—Max. 0.5 V
Display method7-segment LCD
Breakdown voltage (initial)Between charged and uncharged parts: 1,000 V AC for 1 minute.
Insulation resistance (initial)Min. 100 MΩ (measured at 500 V DC) Measurement location same as for break down voltage.
Backlight power—24 V DC (±10%)—
Protective construction (Note 3)IEC Standard IP66 (only panel front: when using rubber gasket)
Accessories (Note 3)Rubber gasket, mounting bracket
Battery life7 years (at 25°C 77°F) Note 16 years (at 25°C 77°F)
Notes) 1. The value given for battery life is calculated based on continuous operation (count input signal ON/OFF = 1:1), therefore, this value is not guaranteed.
Also, battery life is decreased 30% when operation is continuous with 2 kHz count inputting in 2 kHz mode.
2. Operation is at 25 Hz when using 24 V AC.
3. Only for installation frame type.
Type
Non-voltage inputVoltage inputFree voltage type
Non-voltage input using
contacts or open collector
connection
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Non-voltage input using
contacts or open collector
connection
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Standard typeBacklight typeStandard type
0.25 ms/16.7 ms (Switchable by switch)16.7 ms
Non-voltage input typeLC2H-F-2KK
Voltage input type (4.5 to 30 V DC)LC2H-F-DL-2KK
Input methodNon DC voltage input
No. digits8 digits
Rated operation voltage3 V DC
Allowable operation voltage range2.7 to 3.3 V DC
Current consumptionMax. 30 µA (max. 250 µA during reset input)
Max. counting speed2 kHz30 Hz
Count
input
Min. input signal width
(ON: OFF = 1:1)
Input methodNon-voltage input using contacts or open collector connection
Input impedance
0.25 ms16.7 ms
Residual voltageMax. 0.5 V
Min. input signal width10 ms
Reset
input
Input methodNon-voltage input using contacts or open collector connection
Input impedance
Residual powerMax. 0.5 V
Break down voltage (initial)Between charged and uncharged parts: 1,000 V AC for 1 minute.
Insulation resistance (initial)Min. 100 MΩ (measured at 500 V DC) Measurement location same as for break down voltage.
3. Common
Item
Type
Vibration resistance
Shock resistance
Functional10 to 55 Hz (1 cycle/min.), single amplitude: 0.15 mm .006 inch (10 min. on 3 axes)
Destructive10 to 55 Hz (1 cycle/min.), single amplitude: 0.375 mm .015 inch (1 hr. on 3 axes)
FunctionalMin. 98 m/s2 (4 times on 3 axes)
DestructiveMin. 294 m/s2 (5 times on 3 axes)
Operation temperature–10 to +55°C +14 to +131°F (without frost or dew)
Storage temperature–25 to +65°C –13 to +149°F (without frost or dew)
Ambient humidity35 to 85% RH (non-condensing)
Panel mounting/PC board mounting types
PC board mounting type
When shorted: Max. 10 kΩ
When open: Max. 750 kΩ
When shorted: Max. 10 kΩ
When open: Max. 750 kΩ
Applicable standard
Safety standardEN61010-1Pollution Degree 2/Overvoltage Category III
(EMI)EN61000-6-4
EMC
Radiation interference electric field strength
Noise terminal voltage
(EMS)EN61000-6-2
Static discharge immunity
RF electromagnetic field immunity
EFT/B immunity
Conductivity noise immunity
Power frequency magnetic field immunity
EN55011 Group1 ClassA
EN55011 Group1 ClassA
EN61000-4-2 4 kV contact
8 kV air
EN61000-4-3 10 V/m AM modulation (80 MHz to 1 GHz)
10 V/m pulse modulation (895 MHz to 905 MHz)
EN61000-4-4 2 kV (power supply line)
EN61000-4-6 10 V/m AM modulation (0.15 MHz to 80 MHz)
EN61000-4-8 30 A/m (50 Hz)
This button resets the count value. It
does not work when the lock switch is
ON. Be aware that battery life will
decrease if this switch is used frequently.
2. Lock switch (Refer to chart on
right.)
Disable the front reset button.
Note) Turn ON at the LCD side (reset disabled) and
OFF at the terminal block side (reset enabled).
3. Count speed switch (Refer to chart
on right.)
Use this switch to switch the count speed
between 30 Hz and 2 kHz. (On the nonvoltage and voltage input types, 30 Hz is
on the LCD side and 2 kHz is on the
terminal block side. Fixed at 30 Hz for
free voltage input type.)
Note) You must press the front reset button when you
change the count speed switch setting.
Confirm, however, that the Lock Switch is OFF
(front switches operable).
RESET
Front reset button
Lock switch
(Unit display 1)
Count speed
switch
(Unit display 2)
COUNTER
LC2H
Count speed switch
Non-voltage input/voltage inputFree voltage input
(Terminal block side)
(LCD side)
2k Hz
30Hz❇
—
(Fixed at 30 Hz)
LC2H
Lock switch
Dimensions
1. Panel mounting type
• External dimensions
1) One-touch installation type
(44)
(1.732)
22
.866
10.4
.409
5
.197
7
.276
54.4
2.142
24
.945
Notes) 1. ❇Default setting when shipped.
2. Make the switch setting before installing to panel.
• Panel installation diagram
44.8
1.764
Note) When installing to a 4.5 mm .177 inch thick panel, remove the rubber spacer
When installing the one-touch installation type model, make sure
48
1.890
COUNTER
that the installation spring does not pinch the rubber gasket.
To prevent the installation spring
from pinching the rubber gasket:
1. Set the rubber gasket on both
RESET
LC2H
Reset button
ends of the installation spring
(left and right).
2. Confirm that the installation
spring is not pinching the rubber
gasket, and then insert and fix the
installation spring in place from the
rear of the timer unit.
Q-E, }-w, e-t and S-F are connected internally.
An external power supply is required.
Input method
1. Standard type
Panel mounting typePC board mounting type
Contact input
Count
12 3 4
input
(W and R are connected internally.)
Reset
input
Count
input
0.5
.020
0.3
.012
±0.3
±.012
±0.3
15.24
±.012
.600
±0.1
±.004
General tolerance: ±0.1 ±.004
17.3
.681
Note: The AXS212811K is recommended as a compatible connection socket.
Reset inputCount input
Non-voltage input type
Tr ansistor input
NPN transistorNPN transistor
12 34
0V0V
(W and R are connected internally.)
Reset
input
Contact input
Count
input
Tr ansistor input
15
14
17
12
3V DC
28
26
3
Reset
input
1
Notes) 1. When using contact input, since current flow is small from terminals 1 and 3 on the panel mounting type and terminals e to t and S to F on the PC board
mounting type, please use relays and switches with high contact reliability.
2. When using transistor input, use the following as a guide for which transistors (Tr) to use for inputting. (Collector withstand voltage Q 50 V, leakage current < 1 µA)
Voltage input type
Tr ansistor input
Reset
input
Count
input
Contact input
12 34
Reset
input
NPN transistorPNP transistor
+V+V
Count
12 34
input
Notes) 1. 2 and 4. (The input and reset circuits are functionally insulated.)
2. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q 50 V, leakage current < 1 µA)
3. Be aware that the application of voltage that exceeds the voltage range of the H level to the count input terminal, and the application of voltage to the reset input
terminal, can cause damage to the internal elements.
Notes) 1. Do not reverse the polarities when connecting the DC voltage for the backlight.
2. 2 and 4. (The input and reset circuits are functionally insulated.)
3. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q 50 V, leakage current < 1 µA)
4. Be aware that the application of voltage that exceeds the voltage range of the H level to the count input terminal, and the application of voltage to the reset input
terminal, can cause damage to the internal elements.
Explanation of operation
1. Counting takes place when the count
input signal is ON.
2. Counting resumes again when the
count value reaches 99999999 (full scale
value) and then returns to “0” with a new
count input.
3. No measurement takes place when a
reset is input.
1) When reset is ON, resetting takes
place and the count becomes “0”.
2) Press the front reset button when you
want to reset manually (only panel
installation type).
Note) ❇Count becomes “1” when the reset input is turned OFF while the count signal is being input.
Count input
Reset input
Count value
010011
99999999
Backlight connection
GreenRed
24V DC
5
12 34
6
12 34
5
6
24V DC
❇
Note) Be aware that battery life will decrease if the
1. Non-voltage input type
For both panel mounting and PC
board mounting types
1) Never apply voltage to the non-voltage
input type. This will damage the internal
elements. Also, since there is a possibility
of erroneous operation, do not connect in
parallel the inputs of a non-voltage input
type and another counter from a single
input signal.
2) Since the current flow is very small
from the count input and reset input
terminals (1 and 3 on the panel
mounting type and terminals e to t and S to F on the PC board mounting type)
please use relays and switches with high
contact reliability.
3) When inputting with an open collector
of a transistor, use a transistor for small
signals in which ICBO is 1 µA or less and
always input with no voltage.
4) When wiring, try to keep all the input
lines to the count and reset inputs as
short as possible and avoid running them
together with high voltage and power
transmission lines or in a power conduit.
Also, malfunctions might occur if the
floating capacitance of these wires
exceeds 500 pF (10 m 32.808 ft. for
parallel wires of 2 mm
kHz mode, use with a wiring floating
capacitance of 120 pF (3 m 9.843 ft. for
parallel wires of 2 mm
when using shielded wiring, be careful of
the capacitance between wires.
PC board mounting type
1) For external power supply use
manganese dioxide or lithium batteries
(CR type: 3V).
2) Always reset after external power is
applied and confirm that the display
reads “0”.
3) Make the wiring from the battery to the
counter unit as short as absolutely
possible. Also, be careful of polarity.
4) Calculate battery life with the following
formula.
t = A/I
t: battery life [h]
I: LC2H current consumption [mA]
A: battery capacity until minimum
operation voltage is reached [mAh]
5) Hand solder to the lead terminal. Do
not dip solder. With the tip of the
soldering iron at 300°C 572°F perform
soldering within 3 seconds (for 30 to 60
W soldering iron).
2. Voltage input type
1) Be aware that applying more than 30 V
DC to count input terminals 1 and 2,
and reset input terminals 3 and 4 will
cause damage to the internal elements.
2
). When using 2
2
). In particular,
2) For external resetting use H level
(application of 4.5 to 30 V DC) between
reset terminals 3 and 4 of the rear
terminals. In this case, connect + to
terminal 3 and – to terminal 4. This is
the valid polarity; therefore, the counter
will not work if reversed.
3) When wiring, try to keep all the input
lines to the count and reset inputs as
short as possible and avoid running them
together with high voltage and power
transmission lines or in a power conduit.
Also, malfunctions might occur if the
floating capacitance of these wires
exceeds 500 pF (10 m 32.808 ft. for
parallel wires of 2 mm
2
).
3. Free voltage input type
1) Use count input terminals 1 and 2 for
free voltage input and reset terminals 3
and 4 for non-voltage input.
2) Be aware that the application of
voltage that exceeds the voltage range of
the H level to the count input terminal,
and the application of voltage to the reset
input terminal, can cause damage to the
internal elements.
3) Since the current flow is very small
from reset input terminal 3, please use
relays and switches with high contact
reliability.
4) When inputting a reset with an open
collector of a transistor, use a transistor
for small signals in which ICBO is 1 µA or
less and always input with no voltage.
5) To reset externally, short reset input
terminals 3 and 4 on the rear.
6) Input uses a high impedance circuit;
therefore, erroneous operation may occur
if the influence of induction voltage is
present. If you plan to use wiring for the
input signal that is 10 m or longer (wire
capacitance 120 pF/m at normal
temperature), we recommend the use of
a CR filter or the connection of a bleeder
resistor.
4. How to reset multiple panel
mounting type counters all at once
(input is the same for count)
Non-voltage input type
DD
D
3
43 43 4
Notes) 1. Use the following as a guide for choosing
transistors used for input (Tr).
Leakage current < 1 µA
2. Use as small a diode (D) as possible in the
forward voltage so that the voltage between
terminals 3 and 4 during reset input meets
the standard value (0.5 V).
( At IF = 20 µA, forward voltage 0.1 and
higher.)
Tr
or
LC2H
Voltage input type
+V
+V
R
Tr
3
43 43 43 4
Note) Make sure that H (reset ON) level is at least 4.5
V.
5. Backlight luminance
To prevent varying luminance among
backlights when using multiple Backlight
types, please use the same backlight
power supply.
5
5
2
24V DC24V DC
2
GreenRed
6. Environment for use
1) Ambient conditions
• Overvoltage category II, pollution level 2
• Indoor use
• Acceptable temperature and humidity
range: –10 to +55°C, 35 to 85%RH (with
no condensation at 20°C)
• Under 2000 m elevation
2) Use the main unit in a location that
matches the following conditions.
• There is minimal dust and no corrosive
gas.
• There is no combustible or explosive
gas.
• There is no mechanical vibration or
impacts.
• There is no exposure to direct sunlight.
• Located away from large-volume
electromagnetic switches and power
lines with large electrical currents.
3) Connect a breaker that conforms to
EN60947-1 or EN60947-3 to the voltage
input section.
4) Applied voltage should be protected
with an overcurrent protection device
(example: T 1A, 250 V AC time lag fuse)
that conforms to the EN/IEC standards.
(Free voltage input type)
ItemDescriptions
Rated operating voltage24 V DC
Rated power consumptionMax. 1.5 W
Rated control capacity100 mA 30 V DC
Input modeAddition/Subtraction (selectable by front switch)
Max. counting speed30 Hz/5 kHz (selectable by slide switch on side)
Counting input
Reset inputMin. input signal width: Min. 30 ms
Rating
Contact arrangement1 Form A (Open collector)
Electrical life (contact)107 operations (at rated control voltage)
Electrical
Mechanical
Operating
conditions
Protective constructionIP66 (front panel with mounting bracket and rubber gasket)
* The factory default preset value is set to 1000000.
Input signal
Output mode
Display method
Digit
MemoryEEP-ROM (Overwriting times: 105 operations or more)
Allowable operating voltage range85 to 110% of rated operating voltage
Break down voltage (Initial value)Between input and output: 1,500 V AC, for 1 min.
Insulation resistance (Initial value)Between input and output: 100 MΩ (at 500 V DC)
Functional vibration resistance10 to 55 Hz (1 cycle/min), Single amplitude: 0.15 mm (10 min. on 3 axes)
Destructive vibration resistance10 to 55 Hz (1 cycle/min), Single amplitude: 0.375 mm (1 hr. on 3 axes)
Functional shock resistanceMin. 98 m/s2 (4 times on 3 axes)
Destructive shock resistanceMin. 294 m/s2 (5 times on 3 axes)
Operation temperature–10 to 55°C +14 to +131°F (without frost or dew)
Storage temperature–25 to +65°C –13 to +149°F (without frost or dew)
Ambient humidity30 to 85% RH (at 25°C 77°F, non-condensing)
(Switch between red and green for backlight, and between lit and flashing for count up.)
Min. input signal width: 16.7 ms at 30 Hz/0.1 ms at 5 kHz,
ON time : OFF time = 1 : 1
• Non-voltage input using contacts or open-collector connection
• Input impedance; when shorted: Max. 1 kΩ, when open: Min. 100 kΩ
This key resets the count value. It does
not work when the lock switch is ON.
2. Mode key
Use to switch between each mode.
3. Setting key
Used to set digits of preset values or set
each mode.
4. Set key
Use to set preset values or to switch
between modes.
5. Lock switch
Disable the operation of the front panel
reset key and the mode key. With the lock
switch on, is displayed for about
two seconds when the reset key or mode
switch is operated.
6. Count speed switch
Use this switch to switch the count speed
between 30 Hz and 5 kHz.
COUNTER
RESETMODESET
LC2H
1234
5
6
Lock switch
(unit display 1)
Count speed switch
(unit display 2)
6
(Terminal block side)
(LCD side)
(Terminal block side)
(LCD side)
5
❇: Default setting when shipped.
OFF❇
ON
5kHz
30Hz❇
Notes: 1. Make the switch setting before installing to panel.
2. Please turn the power off if you change the setting of the count speed switch when the power is on. The
setting will become valid when the power is turned back on.
Dimensions
• External dimensions
44.8
1.764
54.4
2.142
10.4
.409
22
.866
• Panel cut out dimensions
The standard panel cut out is shown below.
Use the mounting bracket (ATH3803) and the rubber gasket (ATH3804).
(Only installation frame type)
44
1.732
.276
5
.197
7
RESET
MODE
48
1.890
COUNTER
SET
LC2H
24
.945
mm inch
General tolerance: ±1.0 ±.039
When installing the one-touch installation type model, make sure
that the installation spring does not pinch the rubber gasket.
To prevent the installation spring
from pinching the rubber gasket:
1. Set the rubber gasket on both
ends of the installation spring
(left and right).
2. Confirm that the installation
spring is not pinching the rubber
gasket, and then insert and fix the
installation spring in place from the
rear of the timer unit.
• When installing repeatedly (sealed installation)
(Only installation frame type)
+0.5
22.2
0
+.020
.874
0
A
+1.0
0
+.039
0
60 min.
2.362 min.
1.772
A=(48×n-2.5)
A=(1.890×n-.098)
+0.5
45
0
+.020
0
+0.5
22.2
0
+.020
.874
0
Notes: 1. Suitable installation panel thickness is 1 to 4.5 mm 0.39 to 0.177 inch.
2. Waterproofing will be lost when installing repeatedly (sealed installation).
1) Pressing the MODE key takes you to
the preset value setting mode.
Sample display in preset value
setting mode
(when preset value is 1000)
2) Pressing the setting key moves the
flashing digit left by one. Following the
highest digit it returns to the lowest digit
and each time the digit setting key is
pressed it moves one to the left.
3) Pressing the set key increases the
value by one. (After 9 it returns to 0 and
then changes to 1, 2, 3, etc.)
4) Pressing the front panel reset key sets
the displayed preset value and returns
you to the regular operation mode.
5) In the preset value setting mode if you
do not operate the digit setting key or the
set key for ten seconds or more you will
be returned to regular operation. In this
case the preset value will not change.
2. Lock mode
This mode prohibits everything except
the preset value setting mode.
+
the MODE key.
1) Pressing the set key while holding
down the mode key takes you to the lock
mode.
Un-LockLockPress the SET key while pressing
2) The display reads “Un-Lock” after
entering the lock mode (initial setting).
Display after entering lock mode
(Example showing “Un-Lock”.)
3) Pressing the setting key changes the
display between “Lock” and “Unlock”.
(Example showing “ Lock”.)
4) Pressing the front panel reset key sets
the content displayed and returns you to
regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
5) When the lock mode display reads
“Lock”, you will not be able to move
to the backlight setting mode, the input
setting mode, or the output setting mode.
3. Backlight setting mode
This is the mode for setting the backlight
during count up.
Press the SET key while pressing
+
the MODE key.
Lit red
Lit green
Flashes green
Flashes red
1) Pressing the SET key two times while
holding down the MODE key takes you to
the backlight setting mode.
2) The display in the backlight setting
mode reads “LEd”
Display after entering
the backlight setting mode.
3) The LED backlight will be red (initial
setting).
LC2H
4) The backlight changes from flashing
green to flashing red to lit green and to lit
red with each press of the setting key.
5) Pressing the front panel reset key sets
the current backlight color and returns
you to regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
4. Input setting mode
This is the mode for setting addition or
subtraction.
+
the MODE key.
1) Pressing the SET key three times
while holding down the MODE key takes
you to the input setting mode.
2) The display after entering the input
setting mode reads “UP” (initial
setting).
Display after entering input
setting mode
(Example showing “UP”)
3) Pressing the setting key changes the
display to “dn” (subtraction) and pressing
it again changes it to “UP” (addition). The
display alternates between “dn” and “UP”.
(Example showing “dn”)
4) Pressing the front panel reset key sets
the content displayed and returns you to
regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
AdditionSubtractionPress the SET key while pressing
109
Page 14
LC2H
Un-LockLockPress the SET key while pressing
the MODE key.
+
Mode changes as follows by pressing the SET key while holding down the MODE key.
When the lock is set, you cannot enter modes other than
backlight setting mode.
Lit red
Flashes green
Lit green
Flashes red
Press the SET key while pressing
the MODE key.
+
AdditionSubtractionPress the SET key while pressing
1) Pressing the SET key four times while
holding down the MODE key takes you to
the output setting mode.
2) The display reads “HoLd-A” (initial
setting) after entering the output setting
mode.
3) Pressing the setting key causes the
display to change as follows:
HOLD-B (Output maintain/over count I)
SHOT-A (One shot/over count)
SHOT-B (One shot/recount I)
HOLD-A (Output maintain/hold count)
4) Pressing the front panel reset key sets
the display content and returns you to
regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
Please be aware that after doing a front
panel reset key and returning to regular
operation mode, the preset values, count
value and output will be as shown in this
table.
Preset
value
Lock
mode
Backlight
setting
mode
Input
setting
mode
Output
setting
mode
Note: “×” sign: No change
×× ×
×× ×
×
×
Count value
Addition: “0”
Subtraction:
“Preset value”
Addition: “0”
Subtraction:
“Preset value”
Output
change
ON➝OFF
ON➝OFF
Changing the preset value
1. It is possible to change the preset
value even during counting. However,
be aware of the following points.
1) If the preset value is changed to less
than the count value with counting set to
the addition direction, counting will
continue until it reaches full scale, returns
to zero, and then reaches the new preset
value. If the preset value is changed to a
value above the count value, counting will
continue until the count value reaches the
new preset value.
Compliance with the CE marking
• EMC Directive (89/336/EEC)
The LC2H Preset Counter conforms to
the EMC Directive as a simple counter.
Applicable standards: EN61000-6-4,
EN61000-6-2
110
2) Suppose that the 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 preset value is changed to “0”,
the counter will not complete countup. It starts counting up when the
counting value comes to “0 (zero)”
again.
1) Addition (up-count) input when
counting is set to the addition direction,
counting will continue until full scale is
reached, return to zero, and then
complete count-up.
2) Subtraction (down-count) input when
counting is set to the subtraction direction,
counting will continue until full scale
“–9999999” is reached, and then the
display will change to “”.
Output modeOperationExample when input mode is either addition or Subject:ubtraction
Output maintain/
hold count
HOLD-A
Output maintain/
over count I
HOLD-B
One shot/
over count
SHOT-A
One shot/
recount I
SHOT-B
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 completion.
Output control is maintained after count-up
completion and until resetting. However,
counting is possible despite completion of
count-up.
Output control is maintained after count-up
completion for a fixed time (approx. 1 sec.).
Counting is possible despite completion of
count-up.
Output control is maintained after count-up
completion for a fixed time (approx. 1 sec.).
Counting is possible despite completion of
count-up. However, reset occurs
simultaneous with completion of count-up.
While output is being maintained, restarting
of the count is not possible.
1) Input connection
(1) Contact input
Use highly reliable metal plated contacts.
Since the contact’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 to have
a maximum counting speed of 30 Hz.
Count
input
5
6
(2) Non-contact input (Transistor input)
Connect with an open collector. Use
transistors whose characteristics satisfy
the criteria given below.
Reset
3412
input
VCEO = Min. 20 V
IC = Min. 20 mA
ICBO = Max. 6 µA
Also, use transistors with a residual
voltage of less than 2 V when the
transistor is on.
* The short-circuit impedance should be less
than 1 kΩ.
(When the impedance is 0 Ω, the current
coming from the count input terminal is
approximately 5 mA and from the reset
input terminal is approximately 1.5 mA.)
Also, the open-circuit impedance should
be more than 100 kΩ.
Count
input
5
3412
6
Reset
input
(3) Input wiring
When wiring, use shielded wires or
metallic wire tubes, and keep the wire
lengths as short as possible.
2) Output connection
Since the transistor output of counter is
insulated from the internal circuitry by a
photo-coupler, it can be used as an NPN
output or PNP (equal value) output.
As NPN output
Load
5
3412
6
Load’s power
supply
As PNP output
5
3412
6
Load
Load’s power
supply
2. Self-diagnosis function
If a malfunction occurs, one of the following displays will appear.
DisplayContents
Err-00
Err-01
* Includes the possibility that the EEP-ROM’s life has expired.
Malfunctioning
CPU
Malfunctioning
memory*
Output
condition
OFF
Restoration
procedure
Enter front
reset key or
restart
counter
Preset values after
restoration
The preset value at
start-up before the
CPU malfunction
occurred.
0
3. Terminal connection
1) When wiring the terminals, refer to the terminal layout and
wiring diagrams and be sure to perform the wiring properly
without errors.
An external power supply is required in order to run the main
unit.
Power should be applied between
terminals (1) and (2). Terminal (1) acts
as the positive connection and terminal
5
1
234
6
(2) as the negative.
Operating voltage
2) After turning the counter off, make sure that any resulting
induced voltage or residual voltage is not applied to power
supply terminals (1) through (2). (If the power supply wire is
wired parallel to the high voltage wire or power wire, an induced
voltage may be generated at the power supply terminal.)
3) Have the power supply voltage pass through a switch or relay
so that it is applied at one time.
Before using a panel mounting type,
please pull and remove the insulation
sheet from the side of the product in the
direction of the arrow.
In consideration that the product might be
stored for long periods without being
used, an insulation sheet is inserted
before shipping. Remove the insulation
sheet and press the front reset button.
• LC2H total counter (one-touch
installation type)
Insulation sheet
Reset button
• LC2H total counter (installation
frame type)
• LC2H preset counter
1) The front plate will not be waterproof
when this product is installed on a panel.
To make the front plate waterproof,
please install the following.
When using the waterproof type (IP66:
panel front only), install the counter to the
front plate with mounting frame ATH3803
(sold separately) and rubber gasket
ATH3804 (sold separately). Be sure to
tighten using mounting screws.
Mounting frame
(ATH3803)
Rubber gasket (ATH3804)
When installing the mounting frame
and rubber gasket please remove the
pre-attached o-ring.
2) Panel installation order
(1) Remove o-ring.
(2) Place rubber gasket.
(3) Insert counter into panel.
(4) Insert mounting frame from the
rear.
(5) Secure with mounting screws (two
Insulation sheet
Reset button
2. Waterproof construction
• LC2H total counter (installation
frame type)
The operation part of the panel
installation type (installation frame type)
is constructed to prevent water from
entering the unit and a rubber gasket is
provided to prevent water from entering
the gap between the unit and the panel
cutout.
There must be sufficient pressure applied
to the rubber gasket to prevent water
from entering.
Be sure to use the mounting
reinforcement screws when installing the
mounting frame (ATH3803).
Note: The one-touch installation type is
not waterproof.
Mounting frame
(ATH3803)
locations)
3. Do not use in the following
environments
1) In places where the temperature
changes drastically.
2) In places where humidity is high and
there is the possibility of dew.
(When dew forms the display may vanish
and other display errors may occur.)
4. Conditions of use
1) Do not use on places where there is
flammable or corrosive gas, lots of dust,
presence of oil, or where the unit might
be subject to strong vibrations or shocks.
2) Since the cover is made of
polycarbonate resin, do not use in places
where the unit might come into contact
with or be exposed to environments that
contain organic solvents such as methyl
alcohol, benzene and thinner, or strong
alkali substances such as ammonia and
caustic soda.
5. Cautions regarding battery
replacement
1) Remove wiring before replacing the
battery. You may be electrocuted if you
come into contact to a part where high
voltage is applied.
2) Make sure you are not carrying a static
electric charge when replacing the
battery.
3) Battery replacement procedure
For LC2H total counter (one-touch
installation type)
(1) Remove the up/down hook of the
case using a tool.
(2) Pull the unit away from the case.
(3) Remove the battery from the side of
the unit. Do not touch the display or
other parts.
(4) Before inserting wipe clean the
surface of the new battery.
(5) Insert the new battery with the “+”
and “–” sides in the proper position.
(6) After replacing the battery, return
For LC2H total counter
(installation frame type)
(1) Remove the battery cover from the
case.
(2) Remove the battery from the side of
the case. The battery will come
loose if you put the battery side face
down and lightly shake the unit.
(3) Before inserting wipe clean the
surface of the new battery.
(4) Insert the new battery with the “+”
and “–” sides in the proper position.
(5) After replacing the battery, return
the battery cover to the case. Verify
that the hook of the battery cover is
properly engaged.
(6) Before using press the reset button
on the front.
“+” side
“−” side
1
6. Terminal connection
Tighten the terminal screws with a torque
of 0.8 N·cm or less.
2
5
6
Options
1. Accessories (for LC2H total
counter)
Panel cover (black)
COUNTER
RESET
LC2H
Part No.: AEL3801
You can change the design of the front
panel by replacing it with this black panel
cover. The counter comes with an ash
gray panel cover as standard.
Note: No panel cover accessory (black) is available
for the LC2H preset counter.
2. Lithium battery (3 V)
Panasonic
CR2477
3V
JAPAN
Part No.: ATH3802
Packaged with the LC2H (excluding the
PC board mounting type).
Warning
• Make sure the “+” and “−” polarities are
positioned correctly.
• Do not throw the old battery into a fire,
short circuit it, take it apart, or allow it to
come into contact with heat.
• The battery is not rechargeable.
3. Installation parts
Mounting frame
(Suitable for installation frame type LC2H
total counter and LC2H preset counter)
Part No.: ATH3803
Packaged with the mounting bracket type
LC2H total counter
Rubber gasket
(Suitable for installation bracket type
LC2H total counter and LC2H preset
counter)
Part No.: ATH3804
Packaged with the mounting bracket type
LC2H total counter
Classification
Name of productLC2H CounterLC4H/-L Counter
TypeTotal counterPreset counter
Input mode/Input method
Appearance
Features
Rated operating voltage
UP type
Flush mounting type
PC board mounting type
AEL3
8.7 mm tall 8-digit display
Bright 2-color back light
Flush mounting type:
Unnecessary (Built-in
battery)
PC board mounting type:
3 V DC (Battery in
externally installed)
8-digit
Number of digits
(counter capacity)
9
0
9999999
LC2H Counter
Preset counter
UP, DOWN type
AEL3
8.7 mm tall 8-digit display
Preset function equipped
in half size
Display has backlight for
instant recognition
24 V DC
8-digit
9
9999999
Electronic counters
UP, DOWN, and DIR
(multi-mode)/DIP switch
4-digit
display
Bright and easy-to-read
display
Simple operation
Short body
Conforms to IP66’s
weather resistant
standards
100 to 240 V AC
24 V AC, 12 to 24 V DC
4-digit
0
6-digit
0
9999
6-digit
display
9
99999
LC4H-S Counter
Preset counter
UP, DOWN, and DIR
(multi-mode)/DIP switch
4-digit
display
Bright and easy-to-read
display
Simple operation
Pre-scale function Built-in
power supply for highcapacity sensor (100 to
240 V AC type)
Conforms to IP66’s
weather resistant
standards
100 to 240 V AC
0
9999
6-digit
9
999909
4-digit
0
LC4H-W Counter
Preset counter
UP, DOWN, and DIR
(multi-mode) 2 modes
selectable/DIP switch
6-digit
display
Bright and easy-to-read
display
Simple operation
Upper and lower limit
settings are available.
Conforms to IP66’s
weather resistant
standards
100 to 240 V AC
24 V AC
12 to 24 V DC
6-digit
0
999999
Counter/Indication
Counting speed
Input
Reset
(Reset input
specifications conform to
those of counting input)
Options
Zero-suppress function
(LCD)
Flush mounting type:
2kHz/30Hz
(Changeable by a switch)
PC board mounting type:
2kHz/30Hz
(Different type)
Counting (signal) input and
reset input
• Input by short-circuiting
or opening contacts
• Open collector input
• Voltage input
• Front reset button and
external reset input
terminal
• External reset dip
terminal
—Preset
—Control output
——Power supply output
Flush mounting type (No
need for easy installation
type)
Mounting frame, rubber
gasket
Zero-suppress function
(LCD)
30Hz/5kHz
(switchable)
Counting (signal) input and
reset input
• Input by short-circuiting
or opening contacts
• Open collector input
• Manual reset with and
external terminal and
front reset key
The counter is equipped with semiconductor counting circuitry. When the
counter counts up to a preset number, its
output circuit sends a signal.
2. Electro Magnetic Counter
A magnet is magnetized and demagnetized to drive the dial and count up numbers.
RATING
1. Rated Operating Voltage
The voltage is applied to start the
counter.
COUNTINGS
1. Pulse
This is a voltage or current signal sent at
intermittent time intervals.
2. Count
Pulses are used to count up and down.
3. Miss-count
This happens if the number of pulses
does not correspond to the number of
counts.
4. Hertz
This unit of counting speed is used to
give the number of counts per one
second.
5. Make Ratio
This is the ratio of ON time (Ta) to OFF
time (Tb).
6. Maximum Counting Speed
Suppose that the counter is operated
with an input pulse of a make ratio of 1.
The highest counting speed is the peak
of a range in which the output circuit can
send signals without mis-counting. The
speed is expressed in units of Hz (cps:
counts per a second).
7. Over Count
Counting continues beyond a preset
number.
8. Recount
When counting is up, the counter display
resets to zero and counting restarts.
9. Down Count
Numbers are counted down one by one
from a preset number.
10. Up Count
Numbers are counted up one by one
from zero.
11. Up/Down Count
Numbers are counted up or down
depending on input
conditions.
12. Rejection (gate) Input
This signal is used to keep the counter
from counting.
OUTPUTS
1. Count Up
When a preset number is reached, the
output circuit sends a signal.
2. Retained Output
The output is held until a reset signal is
sent.
3. One Shot Output
This output has a specified width of time.
RESETTINGS
1. Reset
The counting process, display and output
sections are all brought back to the initial
status.
2. Power off Reset
The operating voltage is turned off to
reset the counter.
3. Manual Reset
The counter is manually reset.
4. Remote Reset
A signal is sent from a remote point to
the reset terminal so as to reset the
counter.
5. Automatic Reset
When counting is up, internal circuitry is
activated to automatically reset the
counter.
6. Reset Signal Width
This is the time during which the power
is off so as to reset the counter or during
which an external (manual) reset signal
is sent.
7. Reset time
This is the time from the moment a reset
signal is sent to the instant the counter is
ready to start counting again.
OTHERS
1. Function of Memorizing Condition
Counting data up until the operating
voltage is turned off can be stored in
memory. When the power is reactivated,
the data can be reproduced.
2. Anti-surge
The strength against power voltage
surge is determined by applying a singlepole full-wave voltage (several hundred
to several thousand volt wave for ±(1.2 ×
50) µs) acrosss the control power
terminals.
Surge waveform
[Single-pole full-wave voltage for ±(1.2 ×
50) µs]
3. Noise Immunity
This is the strength against external
noise. Relay noise tests, noise simulator
tests, etc. are conducted.
In the circuit that switches an inductive load, a contact failure may occur at a contact point due to surge or inrush current resulting
from that switching. Therefore, it is recommended that the following protective circuit be used to protect the contact point.
2. Type of Load and Inrush Current
The type of load and its inrush current
characteristics, together with the switching frequency, are important factors
which cause contact welding.
Particularly for loads with inrush currents, measure the steady state current
and inrush current and use a relay or
magnet switch which provides an ample
margin of safety. The table below shows
the relationship between typical loads
and their inrush currents.
various kinds of input signals, therefore,
use a power transformer in which the primary side is separated from the
ungrounded secondary side as shown in
Fig. A, for the power supply for a sensor
and other input devices so that short-circuiting can be prevented.
4. Long Continuous Current Flow
Avoid keeping the counter on for a long
period of time (over one month).
Otherwise heat is generated and accumulated inside the counter, which may
deteriorate its electronic parts. If the
counter must be kept on for a long period
of time, a relay is added. See the circuit
diagram below.
When you want large load and long life
of the counter, do not control the load
direct with a counter. When the counter
is designed to use a relay or a magnet
switch, you can acquire the longer life of
the counter.
3. Connection of input
(Except for LC4H-S/AC type)
The LC4H series use power supply without a transformer (power and input terminals are not insulated). In connecting
CR circuit (r: resistor c: capacitor)
Counter contact
(see note.)AvailableNot availableAvailable
Counter contactCounter contactCounter contact
Circuit
Application
Features/Others
Device Selection
AC
Available
If the load is a relay or solenoid, the release time lengthens.
Effective when connected to both contacts if the power supply voltage is
24 or 48 V and the voltage across the load is 100 to 200 V.
If the load is a timer, leakage current
flows through the CR circuit causing
faulty operation.
Note: If used with AC voltage, be sure
the impedance of the load is sufficiently
smaller than that of the CR circuit.
As a guide in selecting r and c,
c: 0.5 to 1 µF per 1 A contact current
r: 0.5 to 1 Ω per 1 V contact voltage
Values vary depending on the properties of the load and variations in counter characteristics.
Capacitor c acts to suppress the discharge the moment the contacts open. Resistor r
acts to limit the current when the power is turned on the next time. Test to confirm.
Use a capacitor with a breakdown voltage of 200 to 300 V. Use AC type capacitors
(non-polarized) for AC circuits.
—
The diode connected in parallel causes the energy stored in the coil to
flow to the coil in the form of current
and dissipates it as joule heat at the
resistance component of the inductive load.
This circuit further delays the release
time compared to the CR circuit.
(2 to 5 times the release time listed in
the catalog)
Use a diode with a reverse breakdown voltage at least 10 times the
circuit voltage and a forward current at least as large as the load
current.
In electronic circuits where the circuit voltages reverse breakdown
voltage of about 2 to 3 times the
power supply voltage.
Using the rated voltage characteristics of the varistor, this circuit prevents excessively high voltages
from being applied across the contacts. This circuit also slightly
delays the release time.
—
AvailableAvailableAvailable
DC
Diode circuitVaristor circuit
Do not use a single coil transformer (e.g.,
Sly-Duck). Otherwise, the internal circuit
of the counter will be short-circuited as
shown in Fig. B resulting in breakdown.
Type of loadInrush current
Resistive loadSteady state current
Solenoid load10 to 20 times the steady state current
Motor load5 to 10 times the steady state current
Incandescent lamp load 10 to 15 times the steady state current
Mercury lamp load1 to 3 times the steady state current
Sodium vapor lamp load 1 to 3 times the steady state current
Capacitive load20 to 40 times the steady state current
Transformer load5 to 15 times the steady state current
1) For connecting operating voltage to
the counter, a circuit should be used,
which will prevent the flow of leakage
current. For example, a circuit for contact protection as shown in Fig A. will
permit leakage current flow through R
and C, causing erroneous operation of
the counter. Instead, the circuit shown in
Fig. B should be used.
2) If the counter
is directly
switched with a
non-contact element, leak current may flow
into the counter
and cause it to
malfunction.
Cautions for use
(common for all models)
1. Terminal connections
Correctly connect the pins while seeing
the terminal layout/wiring diagram. In
particular, the DC type, which has polarities, does not operate with the polarities
connected reverse. Any incorrect connection can cause abnormal heating or
ignition.
2. Connection to operating voltage
1)Apply the entire supply voltage through
a switch, relay or other contact.
2) The operating voltage for the DC type
must be at the specified ripple percentage or less. The average voltage must
fall within the allowable operating voltage
range.
5. Superimposed surge of power
supply
For the superimposed surge of power
supply, the standard waveform (±1.2 ×
50µs or ±1 × 40µs) is taken as the standard value for surge-proof voltage. (The
positive and negative voltages are
applied each three or five times between
the power pins.)
For the standard values for the LC4H
type counters, see the respective items
in "Cautions for use."
• Single-pole, full-wave voltage for surge
waveform [±(1.2 × 50) µs]
If external surge occurs exceeding the
specified value, the internal circuit may
break down. In this case, use a surge
absorption element. The typical surge
absorption elements include a varistor, a
capacitor, and a diode. If a surge
absorption element is used, use an oscilloscope to see whether or not the foreign
surge exceeding the specified value
appears.
6. Signal input
The counter's signal input comes in two
ways. One is by opening and closing the
input terminal. The other is by applying a
specified H-level or L-level voltage to the
input terminal.
For an input sensor's residual voltage,
input impedance, input voltage level and
other signal input conditions, see the ratings for each type of product.
7. Operating environment
1) For the ambient operating temperature and humidity, see the ratings for
each type of product.
2) Avoid using the counter in a location
where inflammable or corrosive gas is
generated, the counter is exposed to
much dust and other foreign matter; water
or oil is splashed on the counter; or vibrations or shocks are given to the counter.
3) The counter cover (case), the knobs,
and the dials are made of polycarbonated resin. Therefore, prevent the counter
from being exposed to organic solvents
such as methyl alcohol, benzine, and
thinner, strong acid substances such as
caustic soda, and ammonia and avoid
using the counter in atmosphere containing any of those substances.
4) If the counter is used where noises
are emitted frequently, separate the input
signal elements (such as a sensor), the
wiring for the input signal line, and the
counter as far as possible from the noise
source and the high power line containing noises.
8. Checking the actual load
In order to increase the reliability in the
actual use, check the quality of the
counter in the actual usage.
9. Others
1) If the counter is used exceeding the
ratings (operating voltage and control
capacity), the contact life, or any other
specified limit, abnormal heat, smoke, or
ignition may occur.
2) The LC2H series counter, incorporates a lithium battery.
Never disassemble the lithium battery or
throw it into fire because this may affect
humans and facilities. The lithium battery must be disposed of as an incombustible like other used batteries.
3) If any malfunction of the counter is
likely to affect human life and properties,
give allowance to the rated values and
performance values. In addition, take
appropriate safety measures such as a
duplex circuit from the viewpoint of product liabilities.
3) Make sure that no induced voltage
and residual voltage are applied between
the power terminals on the counter after
the power switch is turned OFF.
(If the power line is wired in parallel with
the high-voltage and motor lines,
induced voltage may be produced
between the power pins.)
3. Control output
1) Keep the load capacity below the
counter's rated control capacity. If used
above the rating, the counter's service
life may shorten. With the transistor output type counters, transistors may be
damaged.
4. Installing the counter
1) To install the counter, use the dedicated pin bracket or socket (cap). Avoid
connecting the pins on the counter by
directly soldering them.
2) In order to maintain the characteristics, do not remove the counter cover
(case).
The black panel cover is also available so that you can change the appearance of the panel by changing the panel cover.
The color of the standard panel cover is ash gray.
LC4H Panel cover (6 digits)
LC4H-S Panel cover (4 digits)
Mounting parts
• Rubber gasket
• Mounting rails (Applicable for
DIN and IEC standards)
1) For the counters of LC4H series, use
the pin type counter.
INSTALLING DIN SIZE COUNTER
5) Correctly connect the terminals while
seeing the terminal layout and wiring
diagram.
6) If the pin type is used, the rear pinbracket (AT8-RR) or the 8P cap (AD8RC) is necessary to connect the pins.
For the 11-pin type, use the 11P cap
(AT8-DP11) and avoid directly soldering
the round pins on the counter.
7) Panel cutout dimensions
The standard panel
cutout dimensions are
shown in the left figure. (Panel thickness:
1 to 5 mm .039 to .197
inch)
8) Although the
counters can be
mounted adjacent to each
other in this
case, it is recommended to
arrange the
mounting holes
as shown in the
figure to facilitate attaching
and detaching
the mounting
frame.
9) Adjacent mounting
Although the counters can be mounted
adjacent to each other, remember that
the panel surface of LC4H series counter
will lose its water-resistant effect. (Panel
thickness: 1 to 5 mm .039 to .197 inch)
A = (48 × n – 2.5)
When lining up the counters horizontally,
set the frames in such a position so the
formed spring areas are at the top and
bottom.
When lining up
the counters
vertically, set
the frames in
such a position
as the formed
spring areas
are at the right
and left.
+0.6
+0
Pull the mounting
frame backward
while spreading out
its hooks with your
thumbs and index
fingers.
3) Caution in mounting the counter
• LC4H series
a If the LC4H series are used as the
waterproof types (IEC IP66), tighten the
reinforcing screws on the mounting
frames so that the counters, the rubber
gaskets, and the panel surfaces are
tightly contacted with each other.
(Tighten the two screws with uniform
force and make sure that there is no rattling. If the screws are tightened too
excessively, the mounting frame may
come off.)
b If the counter is installed with the
panel cover and the rubber gasket
removed, the waterproofing characteristic is lost.
4) Removal
Loosen the screws on the mounting
frame, spread the edge of frame and
remove it.
2) How to mount the counter
From the panel front, pass the counter
through the square hole. Fit the mounting frame from the rear, and then push it
in so that the clearance between the
mounting frame and the panel surface is
minimized. In addition, lock the mounting frame with a screw.
• LC4H series
5) 8-pin type should be connected with
terminal socket AT8-DF8K. 11-pin type
should be connected with terminal socket AT8-DF11K.
6) DIN rail (AT8-DLA1) is also available
(1 m).
2. Flush mount
1) For the counters of LC4H series, it is
recommended to use the built-in screw
terminal type for flush mount. (Mounting
frame and rubber gasket are provided
when counter is shipped.)
2) Put the terminal socket on the board
directly or put it on the DIN rail (Fig. 1).
3) Insert the counter into the terminal
socket and fix it with clip (Fig. 2)
4) On DIN rail mounting, mount the
counter on the DIN rail tightly to get the
proper dimension (Fig. 3).
AT7821 should be used.
* External dimensions,
however, differ. In
addition, the reset method
changes from voltage
input to non-voltage input.
With exposed attachment,
terminal base ATC180041
should be used.
* External dimensions and
contact capacity, however,
differ. In addition, with the
PM4H-SD:
1) (1) to (8) have no internal
connection, and
2) the input (star) changes
to 1a.
With exposed
attachment, terminal
base ATC180041 should
be used.
With exposed
attachment, terminal
base ATC180031 should
be used.
MHP-YMCHP-N
CHP-NCHP-N
CHP-N-
CHP-NF
CHP-NF-
Exposed type
with attachement
frame type
Exposed type
without attachment
frame type
Exposed type
without attachment
frame type
MHP-NMPM4H-S
PMH
PM4HSPMH-
PM4H-S
PMH
PM4HSPMH-
PM4H-F
PM4HF-
The external dimension
and contact capacity are
different.
The external dimension
and contact capacity are
different.
* External dimensions,
however, differ. In
addition, the reset method
changes from voltage
input to non-voltage input.
PM48
PM48MPM4H-M
PM48M-PM4HMPM48F
PM48F-
PM48SD
PM48SD
PM4HS-
PM4H-F
PM4HF-
PM4H-SD
PM4HSD
With exposed
attachment, terminal
base ATC180031 for F8
type and F8R type
ATC180041 for F11R type.
With exposed
attachment, terminal
base ATC180031 for F8
type and F8R type
ATC180041 for F11R type.
With exposed
attachment, terminal
base ATC180031 should
be used.
Page 28
CDXS1DXM-/S1DX-
CDX Time relayS1DXM-A Timer/
S1DX Timer
ATC18004ATC180041
DIN rail socket (11-pin)
ATC18003
DIN rail socket (8-pin)
DIN rail socket (11-pin)
ATC180031
DIN rail socket (8-pin)
VHPQM4H
VHP digital high-power timer
PDX
PDX Timer
QM4H digital timer
S1DXM-/S1DX-
S1DXM-A Timer/
S1DX Timer
Timers
QM48S (8-pin)QM4H (8-pin)
QM48SQM4H
QM72S
QM72S (Screw terminal)
QM4H
QM4H (8-pin)
LT48WLT4HW
LT48W (8-pin)
LT48
LT48 (8-pin)
LT4H-W (8-pin)
LT4H
LT4H-L
LT4H (8-pin)
Discontinued models
Recommended substitutes
Attachment
Discontinued models
Recommended substitutes
Attachment
DIN48
The size is different.
Compact size
In some cases, the specifications of the recommended substitutes are not exactly the same as those of the discontinued model. Please confirm the specifications before using the
recommended substitutes.
The size is different.
48
72
PM48WPM4HW-
PM48WPM4H-WWith exposed
attachment, terminal
base ATC180031 should
be used.
The size and
attachment method
are different.
The input method is
different.
(Voltage input →
non-voltage input)
The both one-touch
installation type and
installation frame type
are available.
LH24LH2H
LH24
PC board mounting type
LH2H
PC board mounting type
• Installation frame type
LH2H
• One-touch installation
type
LH24
• One-touch installation
type
LH24
Panel-mounting type
LH2H
Panel-mounting type
The both one-touch
installation type and
installation frame type
are available.
Discontinued models
Recommended substitutes
Attachment
Discontinued models
Recommended substitutes
Attachment
In some cases, the specifications of the recommended substitutes are not exactly the same as those of the discontinued model. Please confirm the specifications before using the
recommended substitutes.
Relay type: 8-pin
Tr type: 11-pin
Relay type: 8-pin
Tr type: 11-pin
The size is different.
72
48
Round type
(attachment hole 45)
φ
Square type
(attachment hole 45)
Body
Square type
(attachment hole 45)
Body
Square type
(attachment hole 47)
The size and
attachment method
are different.
The input method is
different.
(Voltage input →
non-voltage input)
Standards from the Lloyd’s Register shipping association based in England. These standards are
safety standards for environmental testing of the
temperature and vibration tolerances of electrical
components used for UMS (unmanned machine
rooms in marine vessels) applications. These standards have become international standards for
control equipment in all marine vessel applications.
No particular action is taken to display the conformation to these standards on the products.
1. International Standards
IEC standard
International Electrotechnical Commission
By promoting international cooperation toward all
problems and related issues regarding
standardization in the electrical and electronic
technology fields, the IEC, a non-governmental
organization, was started in October, 1908, for the
purpose of realizing mutual understanding on an
international level. To this end, the IEC standard
was enacted for the purpose of promoting
international standardization.
2. North America
UL (Underwiters Laboratories Inc.)
This is a non-profit testing organization formed in
1894 by a coalition of U.S. fire insurance firms,
which tests and approves industrial products
(finished products). When electrical products are
marketed in the U.S., UL approval is mandated in
many states, by state law and city ordinances. In
order to obtain UL approval, the principal parts
contained in industrial products must also be ULapproved parts.
UL approval is divided into two general types. One
is called “listing” (Fig. 1), and applies to industrial
products (finished products). Under this type of
approval, products must be approved
unconditionally. The other type is called
“recognition” (Fig. 2), and is a conditional approval
which applies to parts and materials.
CSA (Canadian Standards Association)
This was established in 1919 as a non-profit, nongovernmental organization aimed at promoting
standards. It sets standards for industrial products,
parts, and materials, and has the authority to judge
electrical products to determine whether they
conform to those standards. The CSA is the ultimate
authority in the eyes of both the government and the
people in terms of credibility and respect. Almost all
states and provinces in Canada require CSA
approval by law, in order to sell electrical products.
As a result, electrical products exported from Japan
to Canada are not approved under Canadian laws
unless they have received CSA approval and
display the CSA mark. Approval is called
“certification”, and products and parts which have
been approved are called “certified equipment”, and
display the mark shown in Fig. 3. The mark shown
in Fig. 4 is called the “Component Acceptance”
mark, and indicates conditional approval which is
applicable to parts. The C-UL mark shown in Fig. 5
(finished products) and Fig. 6 (parts) indicates that
the product has been tested and approved in UL
laboratories, based on UL and CSA standards,
through mutual approval activities.
3. Europe
EN standard
European Standards/Norme Europeennee
(France)/Europaishe Norm (Germany)
Abbreviation for European Standards. A unified
standard enacted by CEN/CENELEC (European
Standards Committee/European Electrical
Standards Committee). EU and EFTA member
nations employ the content of the EN standards into
their own national standards and are obligated to
abolish those national standards that do not agree
with the EN standards.
(1) Germany
VDE (Verband Deutscher Elektrotechniker)
The VDE laboratory was established mainly by the
German Electric Technology Alliance, which was
formed in 1893. It carries out safety experiments
and passes approval for electrical devices and
parts. Although VDE certification is not enforced
under German law, punishment is severe should
electrical shock or fire occur; therefore, it is, in fact,
like an enforcement.
TÜV (Technischer Überwachungs-Verein)
TÜV is a civilian, non-profit, independent
organization that has its roots in the German Boiler
Surveillance Association, which was started in 1875
for the purpose of preventing boiler accidents. A
major characteristic of TÜV is that it exists as a
combination of 14 independent organizations (TÜV
Rheinland, TÜV Bayern, etc.) throughout Germany.
TÜV carries out inspection on a wide variety of
industrial devices and equipment, and has been
entrusted to handle electrical products, as well, by
the government. TÜV inspection and certification is
based mainly on the VDE standard.
TÜV certification can be obtained from any of the 14
TÜVs throughout Germany and has the same
effectiveness as obtaining VDE certification.
One of the specifications in the “UL508
Industrial Control Equipment” regulations at
UL (Underwriters Laboratories Inc.), has to
do with the grade of contact control capacity
by NEMA (National Electrical Manufacturers
Association) standards. By obtaining both UL
and CSA approval for this grade, the product
becomes authorized publicly.
“The standard models conform to
the UL/CSA standard.
(To place an order, you do not
need to specify the tailing character □9 of each item number.)”
The standard models conform to
the LLOYD standard.
MHP
MHP-M
E595045A250VACLR39291 5A250VAC88/10123
250V5A (COS φ]1.0)
“The standard models conform to
the UL/CSA standard.
(To place an order, you do not
need to specify the tailing character □9 of each item number.)”
S1DX
(Relay
output)
2C
E122222 7A125VAC
6A250VAC
1/6HP125, 250VAC
PILOT DUTY C300
LR39291 7A125VAC
6A250VAC
1/6HP125, 250VAC
PILOT DUTY C300
98/10004
7A 250V AC
(resistive)
4C
E122222 5A250VAC
1/10HP125, 250VAC
PILOT DUTY C300
LR39291 5A250VAC
1/10HP125, 250VAC
PILOT DUTY C300
98/10004
5A 250V AC
(resistive)
Products Name
Recognized by UL StandardsCertified by CSA StandardsLloyd’s Register Standards
Counter, Hour Meter conforming to
EN/IEC standards
The Timer, Counter, Hour Meter shown below conform to both EN and IEC standards,
and may display the CE markings.
CE markings and EC
directives
The world’s largest single market, the
European Community (EC) was born on
1 January 1993 (changing its name to
EU in November 1993. It is now always
expressed as EU, apart from EC directives.) EU member country products
have always had their quality and safety
guaranteed according to the individual
standards of each member country.
However, the standards of each country
being different prevented the free flow of
goods within the EU. For this reason, in
order to eliminate non-tariff barriers due
to these standards, and to maximize the
merits of EU unification, the EC directives were issued concomitant to the
birth of the EU.
The EN standards were established as
universal EU standards in order to facilitate EU directives. These standards
were merged with the international IEC
standards and henceforth reflect the
standards in all countries. Also, the CE
markings show that products conform to
EC directives, and guarantee the free
flow of products within the EC.
Appropriate
EC directives for control
equipment products
The main EC directives that are to do
with machinery and electrical equipment
are the machinery directive, the EMC
directive, the low voltage directive, and
the telecom directive. Although these
directives have already been issued, the
date of their enactment is different for
each one. The machinery directive was 1
January 1995. The EMC directive was 1
January 1996, and the low voltage directive was enacted from 1 January 1997.
The telecom directive was established by
the separate CTR (Common Technology
References.)
What are EN standards?
An abbreviation of Norme Europeenne
(in French), and called European
Standards in English. Approval is by vote
among the CEN/CENELEC member
countries, and is a unified standards
limited to EU member countries, but the
contents conform to the international
ISO/IEC standards.
If the relevant EN standard does not
exist, it is necessary to obtain approval
based on the relevant IEC standard or, if
the relevant IEC standard does not exist,
the relevant standard from each country,
such as VDE, BS, SEMKO, and so forth.