Panasonic LH2H preset User manual

LH2H
123
FEATURES
1. Preset function equipped in half size
(24 ×48 mm 0.945 ×1.890 inch).
2. Display has backlight for instant
recognition.
3. 8.7 mm 0.343 inch Character Height
(previously 7 mm 0.276 inch)
Easy-to read character height increased
from 7 mm to 8.7 mm 0.276 inch to 0.343
inch.
4. Plenty of Digits
5. Select by switch between two time
ranges in a single meter.
0 to 999999.9h/0 to 3999d23.9h
Selectable
0 to 999h59m59s/0 to 9999h59.9m
Selectable
6. Conforms to IP66 Protective
Construction (Front panel surface)
Weatherproofing supported by using
optional mounting bracket and rubber
gasket
7. Includes reassuring lock mode and
lock switch to prevent erroneous
operation.
8. Screw terminals are constructed to
protect fingers to ensure safety.
9. Complies with CE marking.
Green or (Red)
(backlight)
Red or (Green)
(backlight)
Red or (Green)
(backlight)
(Lit or Flashing)
(Lit or Flashing)
Timing upTime counting
Green or Red can
be selected at setup.
Lit or Flashing can
be selected at setup.
8.7mm
.343inch
7 digits
PRODUCT TYPES
Note: Mounting frame and rubber gasket are not included.
No. digits Measurement
time range Operation mode Output Operating voltage Part No.
7 digits
0 to 999999.9h/
0 to 3999d23.9h
selectable G (Totalizing ON delay)
B (Signal ON delay)
F (Signal flicker)
E (Pulse ON delay)
Transistor (1a) 24 V DC
LH2HP-FEW-DHK-B-DC24V
0 to 999h59m59s/
0 to 9999h59.9m
selectable
LH2HP-FEW-HMK-B-DC24V
Options Mounting frame Use for waterproofing (front panel surface) ATH3803
Rubber gasket ATH3804
LH2H
Hour Meter
PRESET
HOUR METER
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LH2H
124
SPECIFICATIONS
Item Descriptions
Rating
Rated operating voltage 24 V DC
Rated power consumption Max. 1.5 W
Rated control output 100 mA 30 V DC
Time counting direction Addition or Subtraction (selectable by front switch)
Measurement time range 0 to 999999.9h/0 to 3999d23.9h (selectable by slide switch on side)
0 to 999h59m59s/0 to 9999h59.9m (selectable by slide switch on side)
Start input Min. input signal width: Min. 30 ms
Reset input Min. input signal width: Min. 30 ms
Input signal
•Non-voltage input using contacts or open-collector connection
•Input impedance; when shorted: Max. 1 kΩ, when open: Min. 100 kΩ
•Residual voltage: Max. 2 V
Operation mode Totalizing ON delay, Signal ON delay, Signal flicker, Pulse ON delay
(selectable by front switch)
Display method 7-segment LCD
(Switch between red and green for backlight, and between lit and flashing for time up.)
Power failure emory EEP-ROM (Overwriting times: 1.0 ×105operations or more)
Time
accuracy
Operating time fluctuation ±0.01% ±50 ms
in case of power on start
±0.01% ±30 ms
in case of input signal start
Rated operating voltage:
85 to 110%
Ambient temperature:
–10 to +55°C +14 to +131°F
Voltage error
Temperature error
Setting error
Contact arrangement 1 Form A (Open collector)
Electrical life (contact) 1.0 ×107operations (at rated control voltage)
Electrical
Allowable operating voltage range 85 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)
Mechanical
Functional vibration resistance 10 to 55 Hz (1 cycle/min), Single amplitude: 0.15 mm 0.006 inch (10 min. on 3 axes)
Destructive vibration resistance 10 to 55 Hz (1 cycle/min), Single amplitude: 0.375 mm 0.015 inch (1 hr. on 3 axes)
Functional shock resistance Min. 98 m/s2(4 times on 3 axes)
Destructive shock resistance Min. 294 m/s2(5 times on 3 axes)
Operating
conditions
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 humidity 35 to 85% RH (non-condensing)
Protective construction IP66 (front panel with mounting bracket and rubber gasket)








PART NAMES
1. Front reset key
This key resets the elapsed value. It does
not work when the lock switch is ON.
2. Mode key
Use to set preset values or 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. Time unit seal
Unit seals are included in the package.
Affix them in accordance with the time
range.
6. 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.
7. Time range switch
Switch the time range.
❇: Default setting when shipped.
Notes: 1. Make the switch setting before installing to panel.
2. Please turn the power off if you change the setting of the time range switch when the power is on. The
setting will become valid when the power is turned back on.
LH2HP-FEW-DHK-B-DC24V LH2HP-FEW-HMK-B-DC24V
6
Lock
switch
(unit
display 1)
7
Time
range
switch
(unit
display 2)
RESET
MODE SET
HOUR METER LH2H
12345
76
(Terminal block side)
(LCD side)
OFF❇
ON
(Terminal block side)
(LCD side)
0 to 999999.9h❇
0 to 3999d23.9h
(Terminal block side)
(LCD side)
0 to 9999h59.9m❇
0 to 999h59m59s
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LH2H
125
Dimensions
• External dimensions
HOUR METER
LH2H
RESET
MODE SET
44.8
1.764
54.4
2.142
10.4
.409 44 1.732 5 .197 48
1.890
22
.866
7
.276
24
.945
mm inch
General tolerance: ±1.0 ±.039
• Panel cut out dimensions
The standard panel cut out is shown below.
Use the mounting frame (ATH3803) and the rubber gasket (ATH3804).
(Only installation frame type)
• For connected installation (sealed installation)
(Only installation frame type)
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).
45
1.772
+0.5
0
+.020
0
22.2
.874
+0.5
0
+.020
0
60 min.
2.362 min.
22.2
.874
+0.5
0
+.020
0
A=(48×n-2.5)
A=(1.890×n-.098)
A
+1.0
0+.039
0
How to set
1. Preset value setting mode
This is the mode for setting preset values.
1) Pressing the MODE key takes you to
the preset value setting mode.
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.
1) Pressing the set key while holding
down the mode key takes you to the lock
mode.
2) The display reads “Un-Lock”after
entering the lock mode (initial setting).
3) Pressing the setting key changes the
display between “Lock”and “Un-
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 time
counting direction setting mode, or the
operation setting mode.
3. Backlight setting mode
This is the mode for setting the backlight
during time up.
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”
3) The LED backlight will be red (initial
setting).
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.
Press the MODE key. Set the digit. Set the value.
Sample display in preset value
setting mode
(when preset value is 100.0h)
Un-Lock LockPress the SET key while pressing
the MODE key.
+
Display after entering lock mode
(Example showing “Un-Lock”.)
(Example showing “Lock”.)
Lit red Flashes green
Lit green Flashes red
Press the SET key while pressing
the MODE key.
+
Display after entering
the backlight setting mode.
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LH2H
126
4. Time counting direction setting
mode
This is the mode for setting addition or
subtraction.
1) Pressing the SET key three times while
holding down the MODE key takes you to
the time counting direction setting mode.
2) The display after entering the time
counting direction setting mode reads
“UP”(initial setting).
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”.
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.
Addition SubtractionPress the SET key while pressing
the MODE key.
+
Display after entering time counting
direction setting mode
(Example showing “UP”)
(Example showing “dn”)
5. Operation mode
This sets the operation mode.
1) Pressing the SET key four times while
holding down the MODE key takes you to
the operation setting mode.
2) The display reads “OP-G”(Totalizing
ON delay) after entering the operation
setting mode.
3) Pressing the setting key causes the
display to change as follows:
OP-B (Signal ON delay)
OP-F (Signal flicker)
OP-E (Pulse ON delay)
OP-G (Totalizing ON delay)
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.
OP-G OP-B
OP-E OP-F
Press the SET key while pressing
the MODE key.
+
Please be aware that after doing a front
panel reset key and returning to regular
operation mode, the preset values,
elapsed value and output will be as shown
in this table.
Note: “×”sign: No change
Un-Lock LockPress 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.
+
Addition SubtractionPress the SET key while pressing
the MODE key.
+
OP-G OP-B
OP-E OP-F
Lock mode Backlight setting mode
Operation setting mode Time counting direction setting mode
Press the SET key while pressing
the MODE key.
+
2) Lock mode
3) Backlight setting mode
4) Time counting direction setting mode
5) Operation setting mode
Front panel reset key
Regular operation mode
Preset
value Elapsed value Output change
Lock
mode ×× ×
Backlight
setting
mode
×× ×
Time
counting
direction
setting
mode
×Addition: “0” Subtraction:
“Preset value”
ON➝OFF
Operation
setting
mode
×Addition: “0” Subtraction:
“Preset value”
ON➝OFF
Changing the set time (preset value)
1. It is possible to change the set time
even during time delay with the timer.
However, be aware of the following points.
1) If the set time is changed to less than
the elapsed time (elapsed value) with the
time delay set to the addition direction,
time delay will continue until the elapsed
time reaches full scale, returns to “0
(zero)”, and then reaches the new set
time.
If the set time is changed to a time above
the elapsed time, the time delay will
continue until the elapsed time reaches
the new set time.
2) If the time delay is set to the subtraction
direction, time delay will continue until “0
(zero)”regardless of the new set time.
2. If the set time is changed to “0 (zero)”,
the hour meter will operate differently
depending on the operation mode.
In the G (Totalizing ON delay), B (Signal
ON delay), and E (Pulse ON delay)
modes, the output turns ON when the
start input is ON. However, the output will
be OFF while reset is being input.
In the F (Signal flicker) mode, the flicker
operation will not work even if start input is
turned ON.
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Operation mode
Operation mode Explanation Time chart
Totalizing ON delay
•Elapsed value does not clear at power ON.
(Power outage countermeasure function)
•The output remains ON even after the
power is OFF and restarted.
Signal ON delay
•Clears elapsed value at power ON.
•Time delay starts at start ON and output
resets at start OFF.
•Time delay starts at reset OFF and power
ON while start is ON.
Signal Flicker
•Clears elapsed value at power ON.
•Time delay starts at start ON.
•After timer completion, control output
reverses, elapsed value clears, and time
delay starts.
•Ignores start input during time delay.
Pulse ON delay
•Clears elapsed value at power ON.
•Time delay starts at start ON.
•After timer completion, control output is
ON.
•Ignores start input during time delay.
G
Start
Reset
Output
Power supply
T>ta
tat2t1T
T=t1+t2
OFF
ON
OFF
ON
OFF
ON
OFF
ON
B
Start
Reset
Output
Power supply
T T
OFF
ON
OFF
ON
OFF
ON
OFF
ON
F
Start
Reset
Output
Power supply
T>ta
ta
T T T
OFF
ON
OFF
ON
OFF
ON
OFF
ON
E
Start
Reset
Output
Power supply
TTT
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Cautions for use
1. Input and output connection
1) Input connection
(1) Contact input
Use highly reliable metal plated contacts.
Since the contact’s bounce time leads
directly to error in the timer operating time,
use contacts with as short a bounce time
as possible.
(2) Non-contact input (Transistor input)
Connect with an open collector. Use
transistors whose characteristics satisfy
the criteria given below.
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 start 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.
(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 hour meter
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
As PNP output
34125
6
Reset
input
Start
input
3412 Reset
input
Start
input
5
6
34125
6
Load
Load’s power
supply
34125
6
Load
Load’s power
supply
2. Self-diagnosis function
If a malfunction occurs, one of the following displays will appear.
* Includes the possibility that the EEP-ROM’s life has expired.
3. Power failure memory
The EEP-ROM is overwriting with the following timing.
Display Contents Output
condition
Restoration
procedure
Preset values after
restoration
Err-00 Malfunctioning
CPU OFF
Enter front
reset key or
restart hour
meter
Preset value at
start-up before the
CPU malfunction
occurred
Err-01 Malfunctioning
memory* 0
Operation mode Overwrite timing
G (Totalizing ON delay)
mode
Change of preset value or when power is
OFF after start and reset input turns ON
Other modes When power is OFF after changing preset
value
4. 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.
2) After turning the hour meter 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.
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LH2H
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PRECAUTIONS IN USINGTHE LH2H SERIES
CAUTIONS FOR USE
1. Insulation sheet
Before using a panel mounting type,
please pull and remove the insulation
sheet 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.
•LH2H hour meter (one-touch
installation type)
•LH2H hour meter (installation frame
type)
2.Waterproof construction
•LH2H hour meter (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 suf ficient pressure applied
to the rubber gasket to prevent water from
entering.
Be sure to use the mounting screws when
installing the mounting frame (ATH3803).
Note:The one-touch installation type is
not waterproof.
•LH2H preset hour meter
1) When using the waterproof type (IP66:
panel front only), install the hour meter to
the front plate with mounting frame
ATH3803 (sold separately) and rubber
gasket ATH3804 (sold separately). Be
sure to tighten using mounting screws.
2) Panel installation order
(1) Remove o-ring.
(2) Place rubber gasket.
(3) Insert hour meter into panel.
(4) Insert mounting frame from the
rear.
(5) Secure with mounting screws (two
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.
Insulation sheet Reset button
Insulation sheet Reset button
Mounting frame
(ATH3803)
When installing the mounting frame
and rubber gasket please remove the
pre-attached o-ring.
Mounting frame
(ATH3803)
Rubber gasket (ATH3804)
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LH2H
129
Options
1. Accessories (for LH2H hour meter)
Panel cover (black)
Part No.: ATH3801
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 option (black) is available for the
LH2H preset hour meter.
2. Installation parts
Mounting frame
Suitable for installation frame type LH2H
hour meter and LH2H preset hour meter
Part No.: ATH3803
Packaged with the mounting bracket type
LH2H hour meter
Rubber gasket
Suitable for installation frame type LH2H
hour meter and LH2H preset hour meter
Part No.: ATH3804
Packaged with the mounting bracket type
LH2H hour meter
R E S E T
HOUR METER LH2H
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