Panasonic LT4H-W User Manual

48

1.890

48

1.890

64.5

2.539

LT4H-W

02/2003

DIN 48 SIZE
DIGITAL TIMER

LT4H-W

UL File No.: E122222
CSA File No.: LR39291

mm inch

8 Pin type 11 Pin type Screw terminal

type

FEATURES

1. Wide time range

The operation time range covers from

0.01 sec. to 9999 hours.
The individual setting can be performed
on each of 1 and 2 timers.

99.99s 99min59s 99h59min

999.9s 999min 999.9h
9999s 9999h

2. Bright and Easy-to-Read Display

A brand new bright 2-color back light
LCD display. The easy-to-read screen in
any location makes checking and setting
procedures a cinch.

3. Simple Operation

Seesaw buttons make operating the unit
even easier than before.

4. Short Body of only 64.5 mm 2.539

inch (screw terminal type) or 70.1 mm

2.760 inch (pin type)

With a short body, it is easy to install in
even narrow control panels.

5. Conforms to IP66’s Weather
Resistant Standards

The water-proof panel keeps out water
and dirt for reliable operation even in
poor environments.

6. Screw terminal and Pin Type are
Both Standard Options

The two terminal types are standard
options to support either front panel
installation or embedded installation.

7. Changeable Panel Cover

Also offers a black panel cover to meet
your design considerations.

8. Conforms With EMC and Low
Voltage Directives

Conforms with EMC directives
(EN50081-2/EN50082-2) and low

-voltage directives (VDE0435/Part 2021)
for CE certification vital for use in
Europe.

9. Good performance

All this at an affordable price to provide
you with unmatched cost performance.

PRODUCT TYPES

Time range Operation mode Output Operation voltage Power down insurance Terminal Part No.

8 pin LT4HW8-AC240V

Relay

(1 c)

99.99s

999.9s
9999s
99min59s

999.9min
99h59min

999.9h
9999h

* A rubber gasket (ATC18002) and a mounting frame (AT8-DA4) are included.

Pulse input:

• Delayed one shot

• OFF-start flicker

• ON-start flicker

Integrating input:

• Delayed one shot

• OFF-start flicker

• ON-start flicker

Transistor

(1 a)

100-240 V AC

24 V AC / 24 V DC

12-24 V DC

Available

100-240 V AC

24 V AC / 24 V DC

12-24 V DC

11 pin LT4HW-AC240V

Screw LT4HW-AC240VS

8 pin LT4HW8-AC24V

11 pin LT4HW-AC24V

Screw LT4HW-AC24VS

8 pin LT4HW8-DC24V

11 pin LT4HW-DC24V

Screw LT4HW-DC24VS

8 pin LT4HWT8-AC240V

11 pin LT4HWT-AC240V

Screw LT4HWT-AC240VS

8 pin LT4HWT8-AC24V

11 pin LT4HWT-AC24V

Screw LT4HWT-AC24VS

8 pin LT4HWT8-DC24V

11 pin LT4HWT-DC24V

Screw LT4HWT-DC24VS

44

PART NAMES

Fourth digit First digit

T1

Controlled output indicator

Lock indicator

Reset switch

Set/Lock switch

SET/LOCK

RESET

LOCK

OP.

T2

T1/T2 Operation display

Display for change-over

TIMER

T1
T2

Set time display

Time units display

Up keys

Down keys

DOWN

UP

hms

(Subtraction elapsed
time display)

Elapsed time display

LT4H-W

between T1/T2 settings

(

Same for 8-pin and screw terminal type

)

1

DIP switches

2345678

ON

02/2003

SPECIFICATIONS

Item

Operating voltage

100 to 240 V AC, 24 V AC
Frequency
Power consumption
Control capacity (resistive)
Time range

Time counting direction

Rating

Operation mode

Signal, Reset, Stop input
Lock input

Input signal

Indication
Power failure memory

method

Time
accuracy
(max.)

Operating time fluctuation
Temperature error
Voltage error
Setting error
Contact arrangement

Contact

Initial contact resistance
Contact material

Life

Mechanical

Electrical

Operating voltage range

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 output
1,000 Vrms for 1 min: Between contacts

Electrical

Initial breakdown voltage

Initial insulation resistance
(At 500 V DC)

Operating voltage reset
time

Temperature rise

Functional
Destructive
Functional
Destructive

Mechanical

Vibration
resistance

Shock
resistance

Ambient temperature

Operating
conditions

Ambient humidity
Air pressure
Ripple rate

Connection
Protective construction

Note: 1) the 24 V AC type can be operated also with 24 V DC.

AC type

50/60 Hz common

Max. 10 V A

99.99s, 999.9s, 9999s, 99min59s, 999.9min, 99h59min, 999.9h, 9999h (selected by DIP switch)

± (0.005% + 50 ms) in case of power on start

± (0.005% + 20 ms) in case of reset or input signal start

7

2.0 × 10

1.0 × 105ope. (At rated control voltage)

Min. 100 MΩ: Between input and output

—

Ralay output type

1)

5 A, 250 V AC

DC type

12 to 24 V DC

—

Max. 3 W

100 to 240V AC, 24V AC

50/60 Hz common

Max. 10 V A

Transistor output type

AC type DC type

1)

100 mA, 30 V DC

Addition (UP)/Subtraction (DOWN)

(2 directions selectable by DIP switch)

Pulse input: Delayed one shot, OFF-start flicker or ON-start flicker

Integrating 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)

Min. input signal width: 20 ms

Open collector input Input impedance: Max. 1 kΩ; Residual voltage: Max. 2V

Open impedance: 100 kΩ or less, Max. energized voltage: 40 V DC

7-segment LCD, Elapsed value (backlight red LED), Setting value (backlight yellow LED)

5

EEP-ROM (Min. 10

overwriting)

Operating voltage: 85% to 110%
Temperature: –10°C to +55°C +14°F to +131°F

[]

Min. input signal width: 1ms

Timed-out 1 Form C

100 mΩ (at 1 A 6 V DC)

Ag alloy/Au flash

ope. (Except for switch operation parts)

Timed-out 1 Form A (Open collector)

—
—

—

7

ope. (At rated control voltage)

1.0 × 10

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

Between live and dead metal parts

Between contacts

Min. 100 MΩ: Between live and dead metal parts

Between input and output

Max. 0.5 s

Max 65° C (under the flow of nominal operating current at nominal voltage)

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)

Min. 98 m 321.522 ft./s

Min. 294 m 964.567 ft./s

2

(4 times on 3 axes)

2

(5 times on 3 axes)

–10° C to 55° C +14° F to +131° F

Max. 85 % RH

860 to 1,060 h Pa

20 % or less — 20 % or less

8-pin/11-pin/screw terminal

IP66 (front panel with rubber gasket)

LT4H-W

12 to 24 V DC

—

Max. 3 W

45

5.5

7.5

.295

UP

m

DOWN

T1

T2

RESET

SET/LOCK

OP.

LOCK

h

T1

T2

TIMER

s

LT4H-W

48

1.890

44.5

1.752

44.5

1.752

7.5

.295

64.5

.217

2.539

5.5 55.6 14.5

.217 2.189 .571

(

Same for 8-pin type

)

installation panel

Rubber gasket

ATC18002 (supplied

)

SET/LOCK

48

1.890

DOWN

LOCK

TIMER

T1

48

1.890

48

1.890

1.890

50

1.969

RESET

OP.

T2

UP

hm

T1

T2

s

LT4H-W

1

63.5

2.500

66

2.598

50

1.969

66

2.598

1

TIMER

RESET

SET/LOCK

44.5

1.752

installation frame for

AT8-DA4 (supplied

)

48

DOWN

LT4H-W

T1

h

LOCK

T1

T2

OP.

T2

sm

UP

Rubber gasket

ATC18002 (supplied

)

installation panel

AT8-DA4 (supplied

)

90

3.543

(

11p cap AT8-DP11

sold separately

)

(

8p cap AD8-RC

sold separately

)

11-pin type

8-pin type

embedded installations

embedded installations

installation frame for

( ) dimension is for 8-pin type.

(90.0)

95.5

(3.543)

3.760

AT8-DLA1
(

sold separately

)

Device installation rail

(

11-pin type ATC18004

sold separately

)

DIN rail terminal block
(

8-pin type ATC18003

sold 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):

5

81

Signal

Reset

3
2

4

COM

NO

6
7

NC

Operation

voltage

(–) (+)

18

6
7

3
2

45

Signal

Reset

(–) (+)

Operation

voltage

11

1

Reset

Stop
Lock

Signal

4

2

3

5

6

8

9

10

7

COM

NO

NC

(+)

Operation

(–)

voltage

2

4

3

11

1

10

6

5

7

8

9

Reset

Stop
Lock

Signal

(–)(+)

Operation

voltage

Lock

9

4

721638

NC

COM

NO

5

10

Reset

Signal

Stop

(+) (–)

Operation

voltage

12

67

34

89510

Lock

Reset

Signal

Stop

(–)(+)

voltage

Operation

LT4H-W

02/2003

DIMENSIONS (units: mm inch)

• LT4H-W digital timer

Screw-down terminal type

(embedded installation)

• Dimensions for embedded installation (with adapter installed)

Screw-down terminal type Pin type

Pin type (embedded installation/

front panel installation)

•

Dimensions for front panel installations• Installation panel cut-out dimensions

• For connected installations

The standard panel cut-out dimensions are shown
below. Use the installation frame (AT8-DA4) and
rubber gasket (ATC18002).

Note 1: The installation panel thickness should be between 1

and 5 mm .039 and .197 inch.

Note 2: For connected installations, the waterproofing ability

between the unit and installation panel is lost.

TERMINAL LAYOUT AND WIRING

• 8-Pin type

Relay output type Transistor output type Relay output type Transistor output type

• Screw terminal type

Relay output type Transistor output type

• 11-Pin type

46

Note) For connecting the output leads of the transistor output type, refer to

5) Transistor output on page 40.