LT4H/-L DIGITAL TIMER Timers - Allied Electronics · Set the set time with the keys (UP and DOWN...
Transcript of LT4H/-L DIGITAL TIMER Timers - Allied Electronics · Set the set time with the keys (UP and DOWN...
34
Features1. Bright and Easy-to-Read DisplayA brand new bright 2-color back lightLCD display. The easy-to-read screen inany location makes checking and settingprocedures a cinch.2. Simple OperationSeesaw buttons make operating the uniteven easier than before.3. Short Body of only 64.5 mm 2.539inch (screw terminal type) or 70.1 mm2.760 inch (pin type)With a short body, it is easy to install ineven narrow control panels.4. Conforms to IP66’s WeatherResistant StandardsThe water-proof panel keeps out waterand dirt for reliable operation even inpoor environments.
5. Screw terminal (M3.5) and PinTypes are Both Standard OptionsThe two terminal types are standardoptions to support either front panelinstallation or embedded installation.6. Changeable Panel CoverAlso offers a black panel cover to meetyour design considerations.7. Compliant with UL, c-UL and CE.
481.890
481.890
64.52.539
Pin type Screw terminal type
Time range Operating mode Output Operating voltage Power down insurance Terminal type Part number
9.999 s (0.001 s~)99.99 s (0.01 s~)999.9 s (0.1 s~)9999 s (1 s~)99 min 59 s (1 s~)999.9 min (0.1 min~)99 h 59 min (1 min~)999.9 h (0.1 h~)
Power ON delay (1)Power ON delay (2)
Signal ON delaySignal OFF delayPulse One-shotPulse ON-delaySignal Flicker
Totalizing ON-delay(8 modes)
Relay(1 c)
Transistor(1 a)
100 to 240 V AC
24 V AC
100 to 240 V AC
24 V AC
12 to 24 V DC
12 to 24 V DC
Available
11 pins
Screw terminal
11 pins
Screw terminal
11 pins
Screw terminal
11 pins
Screw terminal
LT4H-AC240V
8 pins LT4H8-AC240V
LT4H-AC240VS
LT4H-AC24V
8 pins LT4H8-AC24V
LT4H-AC24VS
LT4HT-AC240V
8 pins LT4HT8-AC240V
LT4HT-AC240VS
LT4HT-AC24V
8 pins LT4HT8-AC24V
LT4HT-AC24VS
11 pins
Screw terminal
11 pins
Screw terminal
LT4H-DC24V
8 pins LT4H8-DC24V
LT4H-DC24VS
LT4HT-DC24V
8 pins LT4HT8-DC24V
LT4HT-DC24VS
Product types
UL File No.: E122222C-UL File No.: E122222LT4H Timers
mm inch
* A rubber gasket (ATC18002) and a mounting frame (AT8-DA4) are included.
DIN 48 SIZE DIGITAL TIMER
LT4H/-LTimers
RoHS Directive compatibility informationhttp://www.nais-e.com/
35
Part names
DOWN
UP
LOCK
RESET
smhLOCKRSTOP.
LT4H
TIMERTime delay indicatorElapsed time display
Set time display
Time units display
Up keys
Down keys
Controlled output indicator
Reset indicator
Lock indicator
Reset switch
Lock switch
(Countdown time display)
ON87654321
DIP switches
(Same for screw terminal type and 8-pin type)
LT4H/-L
Features1. Economically priced in anticipationof market needs.• Economically priced to provide
excellent cost performance.2. Display is a bright reflective-typeLCD.3. Inherits all of the characteristics ofthe LT4H digital timer.• Seesaw switches ensure easy
operation.• IP66 environmental protection.• Shortened body (70.1 mm 2.760 inch
underhead).
4. Compliant with UL, c-UL and CE.
481.890
481.890
64.52.539
UL File No.: E122222C-UL File No.: E122222LT4H-L Timers
mm inch
Product typesTime rangeProduct name Operating mode Output Operating voltage Power down
insurance Terminal type Part number
9.999 s (0.001 s~)99.99 s (0.01 s~)999.9 s (0.1 s~)9999 s (1 s~)99 min 59 s (1 s~)999.9 min (0.1 min~)99 h 59 min (1 min~)999.9 h (0.1 h~)
LT4H-Ldigital timer
Power ON delay (1)Power ON delay (2)
Signal ON delaySignal OFF delayPulse One-shotPulse ON-delaySignal Flicker
Totalizing ON-delay(8 modes)
Relay(1 c)
Transistor(1 a)
100 to 240 V AC
24 V AC/DC
100 to 240 V AC
24 V AC/DC
12 to 24 V DC
12 to 24 V DC
Available 8 pins
LT4HL8-AC240V
LT4HL8-AC24V
LT4HLT8-AC240V
LT4HLT8-AC24V
LT4HL8-DC24V
LT4HLT8-DC24V
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TypeItem
Ralay output typeAC type AC/DC type
100 to 240 V AC, 24 V AC, 24 V AC/DC
50/60 Hz commonMax. 10 V A
5 A, 250 V AC (resistive load)9.999 s, 99.99 s, 999.9 s, 9999 s, 99 min 59 s, 999.9 min, 99 h 59 min, 999.9 h (selected by DIP switch)
Addition (UP)/Subtraction (DOWN)(2 directions selectable by DIP switch)
A (Power ON delay 1), A2 (Power ON delay 2), B (Signal ON delay), C (Signal OFF delay), D (Pulse one-shot),E (Pulse ON delay), F (Signal Flicker), G (Totalizing ON delay) (selectable by DIP switch)
Min. input signal width: 1 ms, 20 ms (2 directions by selected by DIP switch) (The 8-pin type does not have a stop input.)Min. input signal width: 20 ms (The 8-pin type does not have a lock input.)
Open collector input Input impedance: Max. 1 kΩ; Residual voltage: Max. 2 VOpen impedance: 100kΩ or less, Max. energized voltage: 40V DC
7-segment LCD (LT4H, LT4H-L common), Elapsed value (backlight red LED), Setting value (backlight yellow LED)
EEP-ROM (Min. 105 overwriting)
± (0.005 % + 50 ms) in case of power on start± (0.005 % + 20 ms) in case of input signal start
Operating voltage: 85 to 110%Temperature: –10 to +55°C +14 to +131°FMin. input signal width: 1ms
Timed-out 1 Form C100 mΩ (at 1 A 6 V DC)
Ag alloy/Au flash
Min. 2 × 107 ope. (Except for switch operation parts)
1.0 × 105 ope. (At rated control voltage)
85 to 110 % of rated operating voltage
2,000 Vrms for 1 min: Between live and dead metal parts (Pin type)2,000 Vrms for 1 min: Between input and output
2,000 Vrms for 1 min: Between live and dead metal parts (11-pin)2,000 Vrms for 1 min: Between input and output1,000 Vrms for 1 min: Between contacts
Between live and dead metal partsMin. 100 MΩ: Between input and output (At 500V DC)
Between contacts
Min. 100 MΩ: Between live and dead metal partsBetween input and output (At 500V DC)
Max. 0.5 s
10 to 55 Hz: 1 cycle/min single amplitude of 0.35 mm .014 inch (10 min on 3 axes)10 to 55 Hz: 1 cycle/min single amplitude of 0.75 mm .030 inch (1 h on 3 axes)
Timed-out 1 Form A (Open collector)——
—
Min. 107 ope. (At rated control voltage)
12 to 24 V DC
—Max. 3 W
100 to 240 V AC, 24 V AC, 24 V AC/DC
50/60 Hz commonMax. 10 V A
100 mA, 30 V DC
12 to 24 V DC
—Max. 3 W
DC typeTransistor output type
AC type AC/DC type DC type
Rating
Timeaccuracy(max.)
Contact
Life
Electrical
Mechanical
Operatingconditions
Rated operating voltage
Rated frequencyRated power consumptionRated control capacityTime range
Time counting direction
Operation mode
Start/Reset/Stop inputLock input
Input signal
IndicationPower failure memorymethodOperating time fluctuationTemperature errorVoltage errorSetting errorContact arrangementContact resistance (Initial value)Contact material
Mechanical (contact)
Electrical (contact)
Allowable operating voltage range
Breakdown voltage(Initial value)
Insulation resistance(Initial value)
Operating voltage resettime
Max. 65° C (under the flow of nominal operating current at nominal voltage) —Temperature rise
FunctionalDestructive
Vibrationresistance
Min. 98 m 321.522 ft./s2 (4 times on 3 axes)Min. 294 m 964.567 ft./s2 (5 times on 3 axes)
–10° C to 55° C +14° F to +131° FMax. 85 % RH (non-condensing)
860 to 1,060 h Pa—
8-pin/11-pin/screw terminalIP66 (front panel with rubber gasket)
20 % or less — 20 % or less
FunctionalDestructive
Ambient temperatureAmbient humidityAir pressureRipple rate
ConnectionProtective construction
Shockresistance
Specifications
[ ]
LT4H/-L
Applicable standardSafety standard EN61812-1 Pollution Degree 2/Overvoltage Category II
EMC
(EMI)EN61000-6-4Radiation interference electric field strengthNoise terminal voltage(EMS)EN61000-6-2Static discharge immunity
RF electromagnetic field immunity
EFT/B immunity
Surge immunityConductivity noise immunityPower frequency magnetic field immunityVoltage dip/Instantaneous stop/Voltage fluctuation immunity
EN55011 Group1 ClassAEN55011 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) 1 kV (signal line)
EN61000-4-5 1 kV (power line) EN61000-4-6 10 V/m AM modulation (0.15 MHz to 80 MHz) EN61000-4-8 30 A/m (50 Hz) EN61000-4-11 10 ms, 30% (rated voltage)
100 ms, 60% (rated voltage)1,000 ms, 60% (rated voltage)5,000 ms, 95% (rated voltage)
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Dimensions• LT4H digital timer
(units: mm inch)Tolerance: ±1.0 ±.039
Terminal layouts and Wiring diagrams• 8-pin type
Relay output type Transistor output type
Relay output type Transistor output type• Screw terminal type
• Dimensions for embedded installation (with adapter installed)
• Dimensions for front panel installations • Installation panel cut-out dimensions
The standard panel cut-out dimensions are shownbelow. Use the mounting frame (AT8-DA4) and rub-ber gasket (ATC18002).
• For connected installations
Note) 1: The installation panel thickness should be between 1and 5 mm .039 and .197 inch.
Note) 2: For connected installations, the waterproofing abilitybetween the unit and installation panel is lost.
LT4H
TIMER
RESET
LOCK
UP
h m s
OP.RSTLOCK
DOWN
�48�1.890
5.5.217
55.62.189
14.5.571
7.5.295
�44.5�1.752
7.5.295
5.5.217
64.52.539
�44.5�1.752
Screw terminal type (Flush mount)
Screw terminal type Pin type
Pin type (Flush mount/Surface mount)
LT4H
TIMER
RESET
LOCK
UP
DOWN
OP.RSTLOCK h m s
Mounting frame for flush mountAT8-DA4 (supplied)
1.039
�44.5�1.752
Rubber gasketATC18002 (supplied)
Panel
63.52.500
481.890
662.598
501.969
481.890
LT4H
TIMER
UP
OP.RSTLOCK
DOWN
LOCK
RESET
smh
Mounting frame for flush mountAT8-DA4 (supplied)
PanelRubber gasketATC18002 (supplied)
1.039
11-pin type(11p cap AT8-DP11 sold separately)
8-pin type(8p cap AD8-RC sold separately)
481.890
903.543
481.890
662.598
501.969
DIN rail terminal block(8-pin type AT8-DF8Ksold separately)(11-pin type AT8-DF11Ksold separately)
Device installation railAT8-DLA1(sold separately)
95.5(90.0)3.760
(3.543) ( ) dimension is for 8-pin type.
80 min.3.150
80 min.3.150
45+0.60 1.772+.024
0
45+0.60
1.772+.0240
A
A = (48 × n – 2.5) +0.60
45+0.60
1.772+.0240
8
5
17
6
2
34
Operatingvoltage– +
N.O.
N.C.Start
Reset
Operatingvoltage– +
8
5
17
6
2
34
Start
Reset
• 11-pin typeRelay output type Transistor output type
Operatingvoltage– +
N.O.N.C.
3
54
21 11
1098
76
Reset
Lock
StartStop
Operatingvoltage– +
3
54
21 11
1098
76
Reset
Lock
StartStop
Operatingvoltage+ –
54321
109876
N.O.
N.C.
Reset
Lock
StartStop
Operatingvoltage+ –
54321
109876
Reset
Lock
StartStop
LT4H/-L
Note) For connecting the output leads of the transistor output type, refer to5) Transistor output on page 48.
38
Setting the operation mode, time range, and timeSetting procedure 1) Setting the operation mode and time range
Set the operation mode and time range with the DIP switches on the side of the LT4H timer.
DIP switches
Setting procedure 2) Setting the timeSet the set time with the keys (UP and DOWN keys) on the front of the LT4H timer.
DIP switchItem
DIP switch No.1 2 3
ON ON ON A: Power on delay 1OFF OFF OFF A2: Power on delay 2ON OFF OFF B: Signal on delayOFF ON OFF C: Signal off delayON ON OFF D: Pulse One shotOFF OFF ON E: Pulse On delayON OFF ON F: Signal FlickerOFF ON ON G: Totalizing On delay
Table 1: Setting the operation mode
Table 2: Setting the time range
Operation mode
Operation mode Refer to table 1123
Minimum input reset, start, andstop signal width 20 ms 1 ms*4
Time delay direction Addition Subtraction5
Time range Refer to table 2678
ONOFF
DIP switch No.6 7 8
ON ON ON 0.001 s to 9.999 sOFF OFF OFF 0.01 s to 99.99 sON OFF OFF 0.1 s to 999.9 sOFF ON OFF 1 s to 9999 sON ON OFF 0 min 01 s to 99 min 59 sOFF OFF ON 0.1 min to 999.9 minON OFF ON 0 h 01 min to 99 h 59 minOFF ON ON 0.1 h to 999.9 h
Time range
Notes: 1) Set the DIP switches before installing the timer.2) When the DIP SW setting is changed, turn off the power once.3) The DIP switches are set as ON before shipping.
ON1 2 3 4 5 6 7 8
DIP switches
(Same for screw terminal type)
Q Elapsed time displayW Set time displayE Time delay indicatorR Controlled output indicatorT Reset indicatorY Lock indicatorU Time units display
I UP keysChanges the corresponding digit of theset time in the addition direction(upwards)
O DOWN keysChanges the corresponding digit of theset time in the subtraction direction(downwards)
P RESET switchResets the elapsed time and the output
{ LOCK switchLocks the operation of all keys on the unit
9
8
7
2
3
4
5
6
11
10
DOWN
UP
LOCK
RESET
sm
1
hLOCKRSTOP.
TIMER
LT4H
• Changing the set time1. It is possible to change the set timewith the up and down keys even dur-ing time delay with the timer.However, be aware of the followingpoints.1) If the set time is changed to less thanthe elapsed time with the time delay setto the addition direction, time delay willcontinue until the elapsed time reachesfull scale, returns to zero, and thenreaches the new set time. If the set time
is changed to a time above the elapsedtime, the time delay will continue until theelapsed time reaches the new set time.2) If the time delay is set to the subtrac-tion direction, time delay will continueuntil “0” regardless of the new set time.2. If the set time is changed to “0,” theunit will operate differently dependingon the operation mode.1) If the operation mode is set to A(power on delay 1) or A2 (power on
delay 2), the output will turn on when thepower supply is turned on. However, theoutput will be off while reset is beinginput.2) In the other modes, the output turnson when the start is input. When theoperation mode is C (signal off delay), D(Pulse one shot), or F (Signal flicker),only when the start input is on does theoutput turn on. Also, when the reset isbeing input, the output is off.
Front display section
* The 8-pin type does not have the stop input, so that the dipswitch can be changed over between reset and start inputs.The signal range of the lock input is fixed (minimum 20 ms).
LT4H/-L
• Power failure memory
The EEPROM is used for power failure memory. It has a life of Min. 105 over-writings.The EEPROM is overwriting with the following timing.
* Be aware that the contents of EEPROM for all modes will be overwritten when power is turned OFF during input to external lock terminals R to E and to .Such an action does not exist by doing lock operation from the front.
67
Output mode Overwrite timingPower ON delay (2) A2 When power is OFFAddition G Change of preset value or start, reset input
When power is OFF after being ONOther modes When power is OFF after changing preset value
39
Operation mode T: Set time t1, t2, t3, ta<T
Operation type
Power on delay (1)
Explanation Time chart
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Clears elapsed time value and starts time
delay at power ON.• After timer completion, stops at the display of
the set value (addition), or stops at “0” (sub-traction).
• Ignores start input.• Stops delay time operation at stop ON.
Restarts delay time operation at stop OFF.
A
Power on delay (2)
A2
Signal on delay
B
Signal off delay
C
Stop
Reset
Output
Power supply
OFFON
OFFON
OFFON
OFFON
T t1 t2 t1+t2=T
OFFON
OFFON
OFFON
OFFON
T t1 t2 t1+t2=T
Stop
Reset
Output
Power supply
OFFON
OFFON
OFFON
OFFON
OFFON
T t1 t2 t1+t2=T
Stop
Start
Reset
Output
Power supply
OFFON
OFFON
OFFON
OFFON
OFFON
T ta tb t
T>ta+tb T>t
Stop
Start
Reset
Output
Power supply
1 2 3ON ON ON
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Elapsed time value does not clear at power
ON. (power outage countermeasure func-tion)
• The output remains ON even after the poweris cut and restarted.
• After timer completion, stops at the display ofthe set value (addition), or stops at “0” (sub-traction).
• Ignores start input.• Stops delay time operation at stop ON.
Restarts delay time operation at stop OFF.
1 2 3OFF OFF OFF
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Clears elapsed time value at power ON.• Time delay starts at start ON and elapsed
time value or output resets at start OFF.• Instantaneous time delay start at reset OFF
and power ON while start is ON.• Stops delay time operation at stop ON.
Restarts delay time operation at stop OFF.• In order to have the time delay start at power
ON or reset at power OFF, short out the startinput beforehand.
1 2 3ON OFF OFF
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Clears elapsed time value at power ON.• Output control ON at start ON and time delay
start at start OFF.• Elapsed time value clears when start goes ON
again during time delay.• Stops delay time operation at stop ON.
Restarts delay time operation at stop OFF.
1 2 3OFF ON OFF
LT4H/-L
Notes: 1) Each signal input (start, reset, stop, and lock) is applied by shorting their input terminal to the common terminal (terminal Q for the 8-pin type, terminal E forthe 11-pin type, and terminal for the screw terminal type).
2) The 8-pin type does not have a stop input or lock input.6
40
Operation type
Pulse One-shot
Explanation Time chart
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Clears elapsed time value at power ON.• Time delay starts and output control ON at
start ON.• Turns output control OFF and clears elapsed
time value at time-up.• Ignores start input during time delay.• Stops delay time operation at stop ON.
Restarts delay time operation at stop OFF.• In order to have the time delay start at power
ON or reset at power OFF, short out the startinput beforehand.
D
Pulse On delay
E
Signal Flicker
F
Totalizing On delay
G
OFFON
OFFON
OFFON
OFFON
OFFON
T T t1 t2ta
T=t1+t2T>ta
t
Stop
Start
Reset
Output
Power supply
OFFON
OFFON
OFFON
OFFON
OFFON
T t2
T=t1+t2
T Tt1
Stop
Start
Reset
Output
Power supply
T>taOFFON
OFFON
OFFON
OFFON
OFFON
t1 t1
T=t1+t2 T=t1+t2
tat2 t2TT T
Stop
Start
Reset
Output
Power supply
OFFON
OFFON
OFFON
OFFON
OFFON
T t1 t2 t3 ta
T=t1+t2+t3 T>ta
Stop
Start
Reset
Output
Power supply
1 2 3ON ON OFF
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Clears elapsed time value at power ON.• Time delay starts at start ON.• Ignores start input during time delay.• Stops delay time operation at stop ON.
Restarts delay time operation at stop OFF.• In order to have the time delay start at power
ON or reset at power OFF, short out the startinput beforehand.
1 2 3OFF OFF ON
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Clears elapsed time value at power ON.• Time delay starts at start ON.• Ignores start input during time delay.• Output control reverses, elapsed time value
clears, and timer delay starts at timer comple-tion.
• Stops delay time operation at stop ON.Restarts delay time operation at stop OFF.
• In order to have the time delay start at powerON or reset at power OFF, short out the startinput beforehand.
1 2 3ON OFF ON
• Set the operation modesection of the DIP switches(no.’s 1, 2, and 3) on theside of the timer as shown.• Elapsed time value does not clear at power
ON. (power outage countermeasure function)• The output remains ON even after the power
is off and restarted.• Stops delay time operation at stop ON.
Restarts delay time operation at stop OFF.
1 2 3OFF ON ON
LT4H/-L
Notes: 1) Each signal input (start, reset, stop, and lock) is applied by shorting their input terminal to the common terminal (terminal Q for the 8-pin type, terminal E forthe 11-pin type, and terminal for the screw terminal type).
2) The 8-pin type does not have a stop input or lock input.6
T: Set time t1, t2, t3, ta<T
41
Product types
Features1. Wide time rangeThe operation time range covers from0.01 sec. to 9999 hours.The individual setting can be performedon each of 1 and 2 timers.99.99s 99min59s 99h59min999.9s 999.9min 999.9h9999s 9999h2. Bright and Easy-to-Read DisplayA brand new bright 2-color back lightLCD display. The easy-to-read screen inany location makes checking and settingprocedures a cinch.3. Simple OperationSeesaw buttons make operating the uniteven easier than before.4. Short Body of only 64.5 mm 2.539inch (screw terminal type) or 70.1 mm2.760 inch (pin type)With a short body, it is easy to install ineven narrow control panels.
5. Conforms to IP66’s WeatherResistant StandardsThe water-proof panel keeps out waterand dirt for reliable operation even inpoor environments.6. Screw terminal (M3.5) and PinTypes are Both Standard OptionsThe two terminal types are standardoptions to support either front panelinstallation or embedded installation.7. Changeable Panel CoverAlso offers a black panel cover to meetyour design considerations.8. Compliant with UL, c-UL and CE.9. Low PriceAll this at an affordable price to provideyou with unmatched cost performance.
481.890
481.890
64.52.539
8-pin type 11-pin type Screw terminaltype
Time range Operating mode Output Operating voltage Power down insurance Terminal type Part number
99.99s999.9s9999s99min59s999.9min99h59min999.9h9999h
Pulse input:• Delayed one shot• OFF-start flicker• ON-start flicker
Integrating input:• Delayed one shot• OFF-start flicker• ON-start flicker
Relay(1 c)
100 to 240 V AC
Available
8 pins LT4HW8-AC240V
11 pins LT4HW-AC240V
Screw terminal LT4HW-AC240VS
24 V AC
8 pins LT4HW8-AC24V
11 pins LT4HW-AC24V
Screw terminal LT4HW-AC24VS
12 to 24 V DC
8 pins LT4HW8-DC24V
11 pins LT4HW-DC24V
Screw terminal LT4HW-DC24VS
Transistor(1 a)
100 to 240 V AC
8 pins LT4HWT8-AC240V
11 pins LT4HWT-AC240V
Screw terminal LT4HWT-AC240VS
24 V AC
8 pins LT4HWT8-AC24V
11 pins LT4HWT-AC24V
Screw terminal LT4HWT-AC24VS
12 to 24 V DC
8 pins LT4HWT8-DC24V
11 pins LT4HWT-DC24V
Screw terminal LT4HWT-DC24VS
UL File No.: E122222C-UL File No.: E122222
mm inch
LT4H-W
* A rubber gasket (ATC18002) and a mounting frame (AT8-DA4) are included.
DIN 48 SIZE DIGITAL TIMER
LT4H-WTimers
RoHS Directive compatibility informationhttp://www.nais-e.com/
42
Part names
SpecificationsType
ItemRalay output type
AC type100 to 240 V AC, 24 V AC
50/60 Hz commonMax. 10 V A
5 A, 250 V AC99.99s, 999.9s, 9999s, 99min59s, 999.9min, 99h59min, 999.9h, 9999h (selected by DIP switch)
Addition (UP)/Subtraction (DOWN)(2 directions selectable by DIP switch)
Pulse input: Delayed one shot, OFF-start flicker or ON-start flickerIntegrating input: Delayed one shot, OFF-start flicker or ON-start flicker
Min. input signal width: 1 ms, 20 ms (2 directions by selected by DIP switch) (The 8 pin type does not have a stop input.)Min. input signal width: 20 ms (The 8-pin type does not have a lock input.)
Open collector input Input impedance: Max. 1 kΩ; Residual voltage: Max. 2VOpen impedance: 100 kΩ or less, Max. energized voltage: 40 V DC
7-segment LCD, Elapsed value (backlight red LED), Setting value (backlight yellow LED)
EEP-ROM (Min. 105 overwriting)
± (0.005% + 50 ms) in case of power on start± (0.005% + 20 ms) in case of input signal start
Timed-out 1 Form C100 mΩ (at 1 A 6 V DC)
Ag alloy/Au flash
Min. 2 × 107 ope. (Except for switch operation parts)
Min. 105 ope. (At rated control voltage)
85 to 110 % of rated operating voltage
2,000 Vrms for 1 min: Between live and dead metal parts (Pin type only)2,000 Vrms for 1 min: Between input and output
2,000 Vrms for 1 min: Between live and dead metal parts (11-pin type only)2,000 Vrms for 1 min: Between input and output1,000 Vrms for 1 min: Between contacts
Between live and dead metal partsMin. 100 MΩ: Between input and output (At 500V DC)
Between contacts
Min. 100 MΩ: Between live and dead metal partsBetween input and output (At 500V DC)
Max. 0.5 s
10 to 55 Hz: 1 cycle/ min single amplitude of 0.35 mm .014 inch (10 min on 3 axes)10 to 55 Hz: 1 cycle/ min single amplitude of 0.75 mm .030 inch (1 h on 3 axes)
Timed-out 1 Form A (Open collector)——
—
Min. 107 ope. (At rated control voltage)
12 to 24 V DC—
Max. 3 W
100 to 240V AC, 24V AC50/60 Hz common
Max. 10 V A100 mA, 30 V DC
12 to 24 V DC—
Max. 3 W
DC typeTransistor output type
AC type DC type
Rating
Timeaccuracy(max.)
Contact
Life
Electrical
Mechanical
Operatingconditions
Rated operating voltageRated frequencyRated power consumptionRated control capacityTime range
Time counting direction
Operation mode
Start/Reset/Stop inputLock input
Input signal
IndicationPower failure memorymethodOperating time fluctuationTemperature errorVoltage errorSetting errorContact arrangementContact resistance (Initial value)Contact material
Mechanical (contact)
Electrical (contact)
Allowable operating voltage range
Breakdown voltage(Initial value)
Insulation resistance(Initial value)
Operating voltage resettime
Max 65° C (under the flow of nominal operating current at nominal voltage) —Temperature rise
FunctionalDestructive
Vibrationresistance
Min. 98 m 321.522 ft./s2 (4 times on 3 axes)Min. 294 m 964.567 ft./s2 (5 times on 3 axes)
–10° C to 55° C +14° F to +131° FMax. 85 % RH (non-condensing)
860 to 1,060 h Pa—
8-pin/11-pin/screw terminalIP66 (front panel with rubber gasket)
20 % or less — 20 % or less
FunctionalDestructive
Ambient temperatureAmbient humidityAir pressureRipple rate
ConnectionProtective construction
Shockresistance
T2T1
T2
DOWN
T1
UP
SET/LOCK
RESET
smhLOCKOP.
TIMER
LT4H-W
Fourth digit First digit
Controlled output indicator
Lock indicator
Reset switch
Set/Lock switch
T1/T2 Operation display
Display for change-over
Set time display
Time units display
Up keys
Down keys
(Subtraction elapsedtime display)
Elapsed time display
between T1/T2 settings
(Same for 8-pin and screw terminal type)
1
DIP switches
2 3 4 5 6 7 8
ON
LT4H-W
Operating voltage: 85% to 110%Temperature: –10°C to +55°C +14°F to +131°FMin. input signal width: 1ms[ ]
43
Dimensions• LT4H-W digital timer
(units: mm inch)Tolerance: ±1.0 ±.039
• Dimensions for flush mount (with adapter installed)
• Dimensions for front panel installations • Installation panel cut-out dimensionsThe standard panel cut-out dimensions are shownbelow. Use the mounting frame (AT8-DA4) and rub-ber gasket (ATC18002).
• For connected installations
Note) 1: The installation panel thickness should be between 1and 5 mm .039 and .197 inch.
Note) 2: For connected installations, the waterproofing abilitybetween the unit and installation panel is lost.
LT4H-W
SET/LOCK
DOWN
T2
T1
LOCK
TIMER
RESET
T2
OP.
T1
m
UP
h s
481.890
44.51.752
44.51.752
7.5.295
5.5 55.6 14.5.217 2.189 .571
(Same for 8-pin type)
5.5 64.5.217 2.539
7.5.295
Screw terminal type (Flush mount)
Screw terminal type Pin type
Pin type (Flush mount/Surface mount)
UP
DOWN
SET/LOCK
RESET
TIMER
LOCK
T2
OP.
T1
T2
T1
mh s
LT4H-W
SET/LOCK
RESET
TIMER
T2
T2LOCK
T1OP.
T1
DOWN
UP
LT4H-W
mh s
PanelRubber gasketATC18002 (supplied)
481.890
481.890
481.890
1.890
501.969
1 63.52.500
662.598
501.969 66
2.598
1
44.51.752
Mounting frame
AT8-DA4 (supplied)
48
Rubber gasketATC18002 (supplied)
Panel
AT8-DA4 (supplied)
903.543
(11p cap AT8-DP11sold separately)
(8p cap AD8-RCsold separately)
11-pin type
8-pin typefor flush mount for flush mountMounting frame
( ) dimension is for 8-pin type.
(90.0)95.5
(3.543)3.760
AT8-DLA1(sold separately)
Device installation rail
(11-pin type AT8-DF11Ksold separately)
DIN rail terminal block(8-pin type AT8-DF8Ksold separately) 80min.
3.150min.
80min.3.150min.
45 0+0.6
1.772 0+.024
45 0+0.6
1.772 0+.024
45 0+0.6
1.772 0+.024
A=(48 × n – 2.5)+0.6 0 A=(1.890 × n – .098)+.024
0
A
When n timers are continuously installed, the dimension(A) is calculated according to the following formula (n:the number of the timers to be installed):
LT4H-WApplicable standard
Safety standard EN61812-1 Pollution Degree 2/Overvoltage Category II
EMC
(EMI)EN61000-6-4Radiation interference electric field strengthNoise terminal voltage(EMS)EN61000-6-2Static discharge immunity
RF electromagnetic field immunity
EFT/B immunity
Surge immunityConductivity noise immunityPower frequency magnetic field immunityVoltage dip/Instantaneous stop/Voltage fluctuation immunity
EN55011 Group1 ClassAEN55011 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) 1 kV (signal line)
EN61000-4-5 1 kV (power line) EN61000-4-6 10 V/m AM modulation (0.15 MHz to 80 MHz) EN61000-4-8 30 A/m (50 Hz) EN61000-4-11 10 ms, 30% (rated voltage)
100 ms, 60% (rated voltage)1,000 ms, 60% (rated voltage)5,000 ms, 95% (rated voltage)
44
LT4H-WTerminal layouts and Wiring diagrams• 8-Pin type
Relay output type Transistor output type Relay output type Transistor output type• 11-Pin type
N.C.
N.O.
8
5
17
6
2
34
(–) (+)Operating
voltage
Start
Reset
8
5
17
6
2
34
(–) (+)Operating
voltage
Start
Reset
Operatingvoltage
N.O.N.C.
3
54
21 11
1098
76
ResetStartStopLock
– +
3
54
21 11
1098
76
Operatingvoltage– +
ResetStartStopLock
Relay output type Transistor output type• Screw terminal type
54321
109876
N.O.
N.C.
Operatingvoltage
ResetStartStopLock
+ –
54321
109876
ResetStartStopLock
Operatingvoltage+ –
Note) For connecting the output leads of the transistor output type, refer to5) Transistor output on page 48.
45
LT4H-WSetting the operation mode and time rangeSetting procedure 1) Setting the time range (Timer T1/Timer T2)
Set the time range with the DIP switches on the side of the LT4H-W timer.
Setting procedure 2) Setting the operation modeSet the operation mode with the keys on the front of the LT4H-W timer.
Front display section
DIP switchItem
DIP switch No.1 2 3
ON ON ON 0.01 s to 99.99 sOFF OFF OFF 0.1 s to 999.9 sON OFF OFF 1 s to 9999 sOFF ON OFF 0 min 01 s to 99 min 59 sON ON OFF 0.1 min to 999.9 minOFF OFF ON 0 h 01 min to 99 h 59 minON OFF ON 0.1 h to 999.9 hOFF ON ON 1 h to 9999 h
Table 1: Setting the time range (Timer T1)
Table 2: Setting the time range (Timer T2)
Time rangeTime range(Timer T1)
Refer to table 1123
Minimum input reset, start, andstop signal width 20 ms 1 ms*4
Time delay direction Addition Subtraction5
Time range(Timer T2)
Refer to table 2678
ONOFF
DIP switch No.6 7 8
ON ON ONOFF OFF OFFON OFF OFFOFF ON OFFON ON OFFOFF OFF ONON OFF ONOFF ON ON
Time range
Notes: 1) Set the DIP switches before installing the timer.2) When the DIP SW setting is changed, turn off the power once.3) The DIP switches are set as ON before shipping.
* The 8-pin type does not have the stop input, so that the dipswitch can be changed over between reset and start inputs.The signal range of the lock input is fixed (minimum 20 ms).
1 2 3
DIP switches
4 5 6 7 8
ON
Q Elapsed time displayW Set time displayE T1/T2 operation indicatorR T1/T2 setting value
selectable indicatorT Controlled output
indicatorY Lock indicatorU Time units display
I UP keysChanges the corresponding digit of the set time in the addition direc-tion (upwards)
O DOWN keysChanges the corresponding digit of the set time in the subtractiondirection (downwards)
P RESET switchResets the elapsed time and the output
{ SET/LOCK switchChanges over the display between T1/T2 settings, sets the operationmode, checks the operation mode and locks the operation of each key(such as up, down or reset key).
T2T1
T2
DOWN
T1
UP
SET/LOCK
RESET
smhLOCKOP.
LT4H-W
TIMER
11
10
6
5
4
9
8
7
2
13
Fourth digit First digit
1) Setting or changing the operation mode(1) When the UP or DOWN key at the first digit is pressed with the SET/LOCKswitch pressed, the mode is changed over to the setting mode.(2) Now release the SET/LOCK switch.(3) The operation mode in the setting mode is changed over sequentially in the left or right direction by pressing the UP or DOWN key at the first digit, respectively.
(4) The operational mode displayed at present is set by pressing the RESET switch, and the display returns to the normal condition.2) Setting (changing) the time(1) Pressing the SET/LOCK key switches the set value display between T1 and T2. Display the timer (T1 or T2) which is to be set (or changed).(2) After displaying the timer (T1 or T2) which is to be set, press the UP or DOWN key to change the time.• Checking the operation modeWhen the UP or DOWN key at the second digit is pressed with the SET/LOCK switch pressed, the operational mode can be checked.The display returns to the normal condition after indicating the operational mode for about two seconds. (While the display indicates the operational mode for about twoseconds, the other indicators continue to operate normally.)• Setting the lockWhen the UP or DOWN key at the fourth digit is pressed with the SET/LOCK switch pressed, all keys on the unit are locked.The timer does not accept any of UP, DOWN and RESET keys.To release the lock setting, press the UP or DOWN key at the fourth digit again with the set/lock switch pressed.* Operational mode, adding and subtracting and minimum input signal range cannot be set at T1 and T2, respectively.• Changing over the T1/T2 setting displayThe T1/T2 setting display is changed over by pressing the SET/LOCK switch. (This operation gives no effect on the other operations. The set time and elapsed time(residual time) at T1 are linked with those at T2.)• Changing the set time1) It is possible to change the set time with the UP and DOWN keys 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 with the time delay set to the addition direction, time delay will continue until the elapsed time reaches fullscale, returns to 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 elapsedtime reaches the new set time.
(2) If the time delay is set to the subtraction direction, time delay will continue until “0” regardless of the new set time.2) When the set times at T1 and T2 are set to 0, the output becomes ON only while the start input is carried out. However, while the reset input is carried out, the outputbecomes OFF.
Ex: Setting operation mode display(PULSE-A example)
Pulse inputOFF-startRepeating operation
Pulse inputOFF-startOne operation
Pulse inputON-startRepeating operation
Integrating inputOFF-startOne operation
Integrating inputON-startRepeating operation
OFF-startRepeating operation
Integrating input
0.01 s to 99.99 s0.1 s to 999.9 s1 s to 9999 s0 min 01 s to 99 min 59 s0.1 min to 999.9 min0 h 01 min to 99 h 59 min0.1 h to 999.9 h1 h to 9999 h
(same for screw terminal type and 8-pin type.)
46
LT4H-W
Delayedone shot
A
: Pulse inputPULSE : Integrating inputINTEGRATION
• The pulse input mode starts the operation by starting thestart input.
• When using the unit by starting it with the power on, short-circuit the start terminal (8-pin: Q to R, 11-pin: E to Y andscrew terminal: to ).96
• Each signal input such as start, reset, stop and lock inputs is applied by short-circuiting its input terminal and common terminal(8-pin type: terminal Q, 11-pin type: terminal E and screw terminal: terminal ) respectively.
• The 8-pin type does not have a stop input or lock input.6
• The integrating input mode is operated by the integratedtime of the start input. In other word, the timer operates onlywhen the start input is performed.• When the elapsed value is cleared by the reset input, theoutput is reset.• When using the unit by starting it with the power on, short-circuit the start terminal (8-pin: Q to R, 11-pin: E to Y andscrew terminal: to ).96
OFF-start/1 operation t1<T1, t2<T2APULSE
Power
Output
Reset
Start
Stop
T1 T2 ta
ta+tb=T1
tctb td t1
tc+td=T2
T1 t2
supply
OFF-start/1 operation t1<T1, t2<T2AINTEGRATION
tb
Stop
Start
Reset
Output
Power
ta T1tc td te tf tg th
ta+tb=T1
t1
tc+td=T2 tg+th=T2
t2
te+tf=T1
supply
OFF-startflicker
B
OFF-start/repeating operation t1<T1, t2<T2BPULSE
tc
Power
Output
Stop
Reset
Start
T2T1 T2T1 ta tb td t1 T1 t2
ta+tb=T1 tc+td=T2
supply
OFF-start/repeating operation t1<T1, t2<T2BINTEGRATION
tb
Start
Reset
Stop
Outputta
Power
T1
tc+td=T2
tetc td tf tg T2T1th t1
ta+tb=T1
t2
tg+th=T2te+tf=T1
supply
ON-start flicker
C
Remarksand notes
ON-start/repeating operation t1<T1, t2<T2CPULSE
Start
Reset
Stop
Output
Powersupply
ta+tb=T1 tc+td=T2
ta tb tc td t1 t2T1T1 T2 T1 T2
ON-start/repeating operation t1<T1, t2<T2CINTEGRATION
tb
Stop
Start
Reset
Output
Power
ta
tc+td=T2
T1tf tgtc td te t1th T1 T2
ta+tb=T1 tg+th=T2
t2
te+tf=T1
supply
OPERATION MODE
• Elapsed value cleared when power is turned on.• Time limit start initiated when start input goes on; start input ignored if time limit interval
is in progress.• Elapsed value cleared when one operation has been completed.
• Elapsed value not cleared when power is turned on (power failure backup function).• When power is turned back on, same status is maintained for output as that previous
to power going off.• Elapsed value cleared when one operation has been completed.
• Elapsed value cleared when power is turned on.• Time limit start initiated when start input goes on; start input ignored if time limit interval
is in progress.
• Elapsed value not cleared when power is turned on (power failure backup function).• When power is turned back on, same status is maintained for output as that previous
to power going off.
• Elapsed value cleared when power is turned on.• Time limit start initiated when start input goes on; start input ignored if time limit interval
is in progress.
• Elapsed value not cleared when power is turned on (power failure backup function).• When power is turned back on, same status is maintained for output as that previous
to power going off.
47
1. Terminal wiring1) When wiring the terminals, refer to theterminal layout and wiring diagrams andbe sure to perform the wiring properlywithout errors.2) When using the instrument with anflush mounting, the screw-down terminaltype is recommended. For the pin type,use either the rear terminal block(AT78041) or the 8P cap (AD8-RC) forthe 8-pin type, and the rear terminalblock (AT78051) or the 11P cap (AT8-DP11) for the 11-pin type. Avoid solder-ing directly to the round pins on the unit.When using the instrument with a frontpanel installation, use the DIN rail termi-nal block (AT8-DF8K) for the 8-pin typeand the DIN rail terminal block (AT8-DF11K) for the 11-pin type.3) After turning the unit off, make surethat any resulting induced voltage orresidual voltage is not applied to powersupply terminals W through U (8-pintype) W through P (11-pin type) or and (screw terminal type). (If thepower supply wire is wired parallel to thehigh voltage wire or power wire, aninduced voltage may be generatedbetween the power supply terminals.)4) Have the power supply voltage passthrough a switch or relay so that it isapplied at one time. If the power supplyis applied gradually, the counting maymalfunction regardless of the settings,the power supply reset may not function,or other such unpredictable occurrencemay result.2. Input connectionsThe power circuit has no transformer(power and input terminals are not insu-lated). When an input signal is fed to twoor more timers at once, do not arrangethe power circuit in an independent way.If the timer is powered on and off inde-pendently as shown in Fig. A, the timer'sinternal circuitry may get damaged.Becareful never to allow such circuitry.(Figs. A, B and C show the circuitry forthe 11-pin type.)
21
If independent power circuitry must beused, keep the input contacts or transis-tors separate from each other, as shownin Fig. B.
When power circuitry is not independent,one input signal can be fed to two ormore counters at once, as shown in Fig.C.
3. Input and output1) Signal input type(1) Contact point inputUse highly reliable metal plated contacts.Since the contact point’s bounce timeleads directly to error in the timer opera-tions, use contacts with as short abounce time as possible. Also, select aminimum input signal width of 20 ms.
(2) Non-contact point inputConnect with an open collector. Usetransistors whose characteristics satisfythe 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 transistoris on.
8-pin type
Screw terminal type
1 —— 4 3
11-pin type 3 4 5 6 7
6 7 8 9 10
Reset input
Start input
Stop input
Lock input
Reset input
12 to 40V DC
Q
(The above example is for reset input)
8-pin type
Screw terminal type
1 —— 4 3
11-pin type 3 4 5 6 7
6 7 8 9 10
Reset input
Start input
Stop input
Lock input
8-pin type
Screw terminal type
1 — — 4 3
11-pin type 3 4 5 6 7
6 7 8 9 10
PRECAUTIONS IN USING THE LT4H SERIES
* The short-circuit impedance should beless than 1 kΩ.
[When the impedance is 0 Ω, the currentcoming from the start input and stopinput terminals is approximately 12 mA,and from the reset input and lock inputterminals is approximately 1.5 mA.]
Also, the open-circuit impedance shouldbe more than 100 kΩ.
* As shown in the diagram below, from anon-contact point circuit (proximityswitches, photoelectric switches, etc.)with a power supply voltage of between12 and 40 V, the signal can be inputwithout using an open collector transis-tor. In the case of the diagram below,when the non-contact point transistor Qswitches from off to on (when the signalvoltage goes from high to low), the sig-nal is input.
2) The input mode and output modechange 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) The LT4H series use power supplywithout a transformer (power and inputterminals are not insulated). In connect-ing various kinds of input signals, there-fore, use a power transformer in whichthe primary side is separated from theungrounded secondary side as shown inFig. A, for the power supply for a sensorand other input devices so that short-cir-cuiting can be prevented.
102
3
(Fig. A)Input contactpoint or transistor
2
3
10 Powersupply
Inputterminal
terminalInput
102
3
3
2 10
(Fig. B)Input contactpoint or transistor
Powersupply
point or transistorInput contact
terminalInput
terminalInput
(Fig. C)
Powersupply
3
3
Input contactpoint or transistor
102
102
terminalInput
terminalInput
48
Noise wave form (noise simulator)Rise time: 1 nsPulse width: 1 μs, 50 nsPolarity: ±Cycle: 100 cycles/second5) When connecting the operating powersupply, make sure that no leakage cur-rent enters the timer. For example, whenperforming contact protection, if set uplike that of fig. A, leaking current willpass through C and R, enter the unit,and cause incorrect operation. The fig. Bshows the correct setup.
• Surge wave form[± (1.2 × 50) μs uni-polar full wave voltage]
10090
50
30
00 1.2
Time (μs)
Sur
ge v
olta
ge (
%)
50
Peak
T
T
CR
(Fig. A)
(Fig. B)
Operating power supply
Leakage current
R
C
Operating power supply
Load’spower supply
Inductive load
LT4H timer
Diode rating:
IF (forward current): 1 A
VR (reverse voltage): 600 V
Once the wiring to be used is completelyinstalled and prior to installing this timer,confirm that there is complete insulationbetween the wires connected to thepower terminals (2 each) and the wiresconnected to each input terminal. If thepower and input lines are not insulated, ashort-circuit may occur inside the timerand result in internal damage.In addition, when moving your equipmentto a new installation location, confirmthat there is no difference in environmen-tal conditions as compared to the previ-ous location.
4) The input signal is applied by theshorting of each input terminal with thecommon terminal (terminal Q for 8-pintypes, terminal E for 11-pin types andterminal for screw terminal types).Never connect other terminals or volt-ages higher than 40V DC, because itmay destroy the internal circuitry. 5) Transistor output(1) Since the transistor output is insulat-
ed from the internal circuitry by a pho-tocoupler, it can be used as an NPNoutput or PNP (equal value) output.(The above example is 11-pin type)
6
Load
Load’s power supply
LT4H timer
{ O I
As NPN output
Load
Load’s power supply
LT4H timer
As PNP output
{ O I
(2) Use the diode connected to the out-put transistor’s collector for absorbingthe reverse voltage from induced loads.
6) When wiring, use shielded wires ormetallic wire tubes, and keep the wirelengths as short as possible.7) For the load of the controlled output,make sure that it is lower than the ratedcontrol capacity.4. Operation of LT4H digital timer1) Turning on and off the power supplywhile operating in A2* (Power on delay2) or G (Totalizing On delay) will result ina timer error to be generated due to thecharacteristics of the internal circuitry.Therefore, use the start input or stopinput.* Not related to the start input.2) When controlling the timer by turningon the power supply, use only A (Poweron delay 1) or A2 (Power on delay 2).Use of other modes in this situation willresult in timer errors. When using theother modes, control the timer with thestart input or stop input.5. Operation mode and time range set-tingThe operation mode and time range canbe set with the DIP switches on the sideof the timer. Make the DIP switch set-tings before installing the timer on thepanel.The operation mode of LT4H-W seriescan be set with the keys and switches onthe front of the timer.6. Conditions of usage1) Avoid locations subject to flammableor corrosive gases, excessive dust, oil,vibrations, or excessive shocks.2) Since the cover of the timer is made ofpolycarbonate resin, avoid contact withor use in environments containing methylalcohol, benzene, thinners, and otherorganic solvents; and ammonia, causticsodas, and other alkaline substances.3) If power supply surges exceed the val-ues given below, the internal circuits maybecome damaged. Be sure to use surgeabsorbing element to prevent this fromhappening.
4) Regarding external noise, the valuesbelow are considered the noise-resistantvoltages. If voltages rise above thesevalues, malfunctions or damage to theinternal circuitry may result, so take thenecessary precautions.
Operating voltage Surge voltage (peak value)AC type 6,000VDC type
24V AC type1,000V
Power supply terminalsInput
terminalsAC typeDC type
24V AC typeNoise
voltage1,500V 1,000V 600V
Note: With the 8-pin type, there is no diodebetween points I and O.
PRECAUTIONS IN USING THE LT4H SERIES
(e.g., sensor)
Timer
Timer
AC power supply
(e.g., sensor)Input device
Insulation transformer
Timer
Insulation transformer
(Fig. B) Bad exampleAC power supply
(Fig. A) Good exampleAC power supply
Input device
(+)
(–)
(–)
Input device(e.g., sensor)
Alternativecurrent flow
Single coil transformer
(+)
(–)
(+)
(–)
(–)
(–)
49
Display Contents
Malfunctioning CPU.Enter reset input, RESETkey, or restart unit.
The values at start-up before the CPUmalfunction occurred.
0Malfunctioning memory. Seenote.
OFF
Output condition Restoration procedure Preset values after restoration
7. Self-diagnosis functionIf a malfunction occurs, one of the following displays will appear.
Note: Includes the possibility that the EEPROM’s life has expired.
6) Long periods of continuous operationin the time-up completed condition (onemonth or more) will result in the weaken-ing of the internal electrical componentsfrom the generated heat and, therefore,should be avoided. If you do plan to usethe unit for such continuous operation,use in conjunction with a relay as shownin the circuit in the diagram below.
7. Acquisition of CE markingPlease abide by the conditions belowwhen using in applications that complywith EN61812-1.1) Overvoltage category III, pollution level 22) This timer employs a power supplywithout a transformer, so the power andinput signal terminals are not insulated.(1) When a sensor is connected to theinput circuit, install double insulation onthe sensor side.(2) In the case of contact input, use dual-insulated relays, etc.3) The load connected to the output con-tact should have basic insulation.This timer is protected with basic insula-tion and can be double-insulated to meetEN/IEC requirements by using basicinsulation on the load.
4) Please use a power supply that is pro-tected by an overcurrent protectiondevice which complies with the EN/IECstandard (example: 250 V 1 A fuse, etc.).5) You must use a terminal socket orsocket for the installation. Do not touchthe terminals or other parts of the timerwhen it is powered. When installing orun-installing, make sure that no voltageis being applied to any of the terminals.6) Do not use this timer as a safety cir-cuit. For example when using a timer in aheater circuit, etc., provide a protectioncircuit on the machine side.
R
R
T
T
R R
Relay Timer Receive outputfrom contactat relay R
PRECAUTIONS IN USING THE LT4H SERIES
54
DIN SIZE TIMERS COMMON OPTIONS
Note: The socket’s numbering system matches that of the timer terminals.
Terminal sockets (Unit: mm inch, Tolerance: ±1 ±.039)
Sockets (Unit: mm inch, Tolerance: ±1 ±.039)
Type
PM4H-SPM4H-MPM4H-SDPM4H-F8
PM4H-F8RPM4H-W
LT4HLT4H-LLT4H-WQM4HPM4S
(8-pin type)
PM4H-APM4H-F11R
LT4HLT4H-W
(11-pin type)
Appearance
• DIN rail socket (8-pin)
ATC180031
Note: Terminal No.on the main bodyare identifical tothose on the termi-nal socket.
• DIN rail socket (11-pin)
ATC180041
Note: Terminal No.on the main bodyare identifical tothose on the termi-nal socket.
Dimensions Terminal wiring(Top view) Mounting hole dimensions
Type
PM4H-SPM4H-MPM4H-SDPM4H-F8
PM4H-F8RPM4H-W
LT4HLT4H-LLT4H-W
(8-pin type)PM4SQM4H
PM4H-APM4H-F11R
LT4HLT4H-W
(11-pin type)
Appearance
• Rear terminal socket
AT78041
• 8P cap
AD8-RC
• 11P cap
AT8-DP11
Note: The terminal socket’s numbering system matches that of the timer terminals.
Dimensions Terminal wiring(Top view) Mounting hole dimensions
—
—
—
6 5 4 3
7 8 1 2
50 1.969
40 1.575
2- 4.5φ2- .177φ
702.756
702.756
35.51.390
4.157
24.945
19.748M3.5
M.138
4
39
8 7 6 5
1 210 11
2- 4.5φ2- .177φ
50 1.969
40 1.575
702.756
4.157
702.756
29.51.161
30.51.201M3.5
M.138
87 1 2
56 4 3
4
1109
1 1 23
78 6 5
702.756
13.512
0.240±
.0081.575±
2-M4 2-M.157
±0.1
501.969
between the holes whichareparallel drilled.
The minimum distance
(or 4.2 ±0.1.165
screw holes
dia. holes)
702.756
13.512
0.240±
.0081.575±
2-M4 2-M.157
±0.1
501.969
between the holes whichareparallel drilled.
The minimum distance
(or 4.2 ±0.1.165
screw holes
dia. holes)
24.945
702.75650
1.969
30.51.201
702.75650
1.969
3 4 5 6
2 1 8 7
381.496
411.614
21.82716
.630
M3.5 .138
8 712
5 643
81
76
54
32
108
7
1
32
11
5
4
6
9
8.6.33932.5
1.280
31.41.236
8.315
(34.6)(1.362)
261.024
30141.181.551
φφ
φφ
φφ
φφ
268.6.339
8.315
(34.6)(1.362)
1.02432.51.280
31.41.236
30141.181.551
φφ
φφ
φφ
φφ
411.614
21.827
381.496
301.181
φφ
34.61.362
31.41.236
φφ
301.181
φφ
34.61.362
31.41.236
φφ
• Rear terminal socket
AT78051
—
3 9
8
102 1
7654
114 5 6 7 8
3 2 1 10
11
9
43.41.709
451.772
5.197
21.82716
.630
M3.5 .138
43.41.709
21.827
451.772
55
MOUNTING PARTS
AccessoriesPM4H series• Panel cover (Black)
LT4H series• Panel cover (Black)
• Set ring
• Rubber gasket
• Mounting rails (Applicable forDIN and IEC standards)
• Mounting frame
• Fastening plate
ATC18002
AT8-DLA1Length: 1 maluminum
Applicable for PM4H seriesand LT4H series
PM4H-A
ATC18011
PM4H-S
ATC18012
PM4H-M
ATC18013
PM4H-W
LT4H LT4H-W
ATC18014
ATL58011
The black panel cover is also available so that you can change theappearance of the panel by changing the panel cover. The color of thestandard panel cover is ash gray.
When you control the fixed timerange, the setting rings (a set of 2pcs.) make it easy to do the timesetting and keep the time range allthe time. (Excluding PM4H-W)
ATL68011
PM4H-SD
ATC18015
PM4H-F
ATC18016
Applicable for PM4H seriesLT4H series and QM4Hseries
For holding DIN rails
The rubber gasket is enclosed in the PM4H(screw terminal type) and the LT4H series.
AT8-DA4
ATA4806
ATC18001
50.01.969
50.01.969
1.0.039
481.890
48 1.89068 2.677
Oval hole, 40-5.5x15 40-.217x.591
10
.2175.5
155
271.063
2435.9451.378
7.5.295
1.5.059
15
2.75R .108R
1,000
15
±1 39.37 ± .039
15
.591.591.591.394 .394 .197.197 .591
10 5
• Protective cover for DIN 48 size: LT4H, QM4H series • Protective cover for DIN 48 size: QM4H series
AQM4801
Hard type
ATA4806
UP
12.472
501.969
M4M.157
10
10
.394
.394
50.61.992
17.2.677
50.61.992
AQM4803
Flexible type501.969
501.969
11.433
S
RANGEN
POWER
MODE
PM4H-A
OP
S
RANGEN
POWERPM4H-S
OP
S
RANGEN
POWER
MODE
PM4H-M
OP
S
RANGEL
OFF
RANGE
OFF
PM4H-W
ON
RANGEL
S
RANGE--
PM4H-SD
S
L
S
RANGEL
POWERPM4H-F
DOWN
UPLOCK
RESET
TIMER
LT4H
RESET
SET/LOCK
UP
DOWN
TIMER
LT4H-W
DIN SIZE TIMERS COMMON OPTIONS
56
INSTALLING DIN SIZE TIMERInstallations1. Surface mount1) For the timers of PM4H and LT4Hseries, use the pin type timer. With thePM4S and QM4H series, only pin-typetimers are available.
2) Put the terminal socket on the boarddirectly or put it on the DIN rail (Fig. 1).3) Insert the timer into the terminal sock-et and fix it with clip (Fig. 2)4) On DIN rail mounting, mount the timeron the DIN rail tightly to get the properdimension (Fig. 3).
5) 8-pin type should be connected withterminal socket (AT8-DF8K). 11-pin typeshould be connected with terminal sock-et (AT8-DF11K).6) DIN rail (AT8-DLA1) is also available(1 m).2. Flush mount1) For the timers of PM4H and LT4Hseries, it is recommended to use thebuilt-in screw terminal type for flushmount. (Mounting frame and rubbergasket are provided when timer isshipped.)
If the pin type is used, the mountingframe (AT8-DA4) and rubber gasket(ATC18002 for surface waterproofing)that are available at extra costs are nec-essary. If the pin connection socket isthe 8-pin type, use the 8P cap (AD8-RC); or if it is the 11-pin type, use the11P cap (AT8-DP11).
2) How to mount the timer From the panel front, pass the timerthrough the square hole. Fit the mount-ing frame from the rear, and then push itin so that the clearance between themounting frame and the panel surface isminimized. In addition, lock the mount-ing frame with a screw.
3) Caution in mounting the timer• PM4H, and LT4H series�a If the PM4H and the LT4H series areused as the waterproof types, tighten thereinforcing screws on the mountingframes so that the timers, the rubbergaskets, and the panel surfaces aretightly contacted with each other.(Tighten the two screws with uniformforce and make sure that there is no rat-tling. If the screws are tightened tooexcessively, the mounting frame maycome off.)�b If the timer is installed with the panelcover and the rubber gasket removed,the waterproofing characteristic is lost.4) InstallationLoosen the screws on the mountingframe, spread the edge of frame andremove it.
Pull the mountingframe backward whilespreading out its hookswith your thumbs andindex fingers.
5) Correctly connect the pins while see-ing the pin connection diagram.Tighten the terminal screws with a torqueof 0.8 N·cm or less. The screws areM3.5. (screw-tightened terminal type)6) If the pin type is used, the rear termi-nal block (ATC78041) or the 8P cap(AD8-RC) is necessary to connect thepins. For the 11-pin type, use the rearterminal block (ATC78051) or the 11Pcap (AT8-DP11) and avoid directly sol-dering the round pins on the timer.7) Panel cutout dimensions
The standard panelcutout dimensions areshown in the left figure.(Panel thickness: 1 to 5mm .039 to .197 inch)
8) Although thetimers can bemounted adjacentto each other inthis case, it is rec-ommended toarrange themounting holesas shown in theright figure tofacilitate attachingand detaching themounting frame.9) AdjacentmountingAlthough thetimers can bemounted adjacent to each other, remem-ber that the panel surface of PM4H orLT4H series timer will lose its water-resistant effect. (Panel thickness: 1 to 5mm .039 to .197 inch)A = (48 × n – 2.5) (mm)When lining up thetimers horizontally,set the frames insuch a position sothe formed springareas are at thetop and bottom.When lining up thetimers vertically,set the frames insuch a position asthe formed springareas are at theright and left.
+0.6+0
45
+45 00.6
00.6+
1.772 0.024+
1.772 0.024+
80 mm3.150 inchor more
80 mm3.150 inchor more
45 00.6+
1.772 0.024+
45 00.6+
1.772 0.024+
00.645+
A
1.772 0.024+
Formed spring
Formed spring
Terminal socket
(Fig. 1) (Fig. 2)
DIN rail
(Fig. 3)
Rubber gasket
Mounting frame
Panel cover
Push in
Screw
Panel
Screw
Push in
1
2
1
• Pin type
• Screw terminal type