Grieve Corporation LT4H Installation Manual

Features

1. Bright and Easy-to-Read Display

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

2. Simple Operation

Seesaw buttons make setting and operation simple and easy.

3. Short Body of only 64.5 mm 2.54

inch (screw terminal type) or 70.1 mm

2.76 inch (pin type)

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

4. Conforms to IP66’s Weather Resistant Standards

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

5. Screw terminal and Pin Type are Both Standard

The two terminal types are standard to support either through-panel installation or embedded installation.

6. Changeable Panel Cover

A black panel cover is also available to meet your design requirements.

7. 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.

8. EE-PROM Power Failure Memory

EE-PROM memory retains setting and time data. Eliminates the need for battery replacement.

Pin type Screw terminal type

Compact, Easy-to-read, Easy-to-use... A digital timer made to meet the market’s needs.

Part names

DOWN

RESET

LOCK

TIMER LT4H

OP. RST LOCK

hms

Time delay indicator

Controlled output indicator

Reset indicator

Lock indicator

Reset switch

Lock switch

Elapsed time display

Set time display

Time units display Up keys Down keys

12345678

DIP switches

(Same for screw terminal type)

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

9.999 s (0.001 s~)

99.99 s (0.01 s~)

999.9 s (0.1 s~) 9999 s (1 s~) 99 m 59 s (1 s~)

999.9 min (0.1 m~) 99 h 59 min (1 m~)

999.9 h (0.1 h~)

Power ON delay (1) Power ON delay (2)

Signal ON delay

Signal OFF delay

Pulse One-shot Pulse ON-delay

Signal Flicker

Totalizing ON-delay

(8 modes)

Relay

(1 c)

Transistor

(1 a)

100-240 V AC

12-24 V DC

100-240 V AC

12-24 V DC

Available

11 pin Screw 11 pin Screw 11 pin Screw 11 pin Screw

LT4H-AC240V LT4H-AC240VS LT4H-DC24V LT4H-DC24VS LT4HT-AC240V LT4HT-AC240VS LT4HT-DC24V LT4HT-DC24VS

Product types

DIN 48 SIZE DIGITAL TIMER

LT4H Timers

Item

Ralay output type

AC type

100 to 240 V AC

50/60 Hz common

Max. 10 V A

5 A, 250 V AC

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), A2 (Power ON delay), B (Signal ON delay), C (Signal OFF delay), D (Pulse one-shot),

E (Self-hold), F (Flicker), G (Totalizing) (Selectable by DIP switch)

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 k

Ω; Residual voltage: Max. 2 V

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

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

EE-PROM (Min. 10

overwriting)

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

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

(at fixed power off time)

100 ms

Timed-out 1 Form C

100 mΩ (at 1 A6 V DC)

Ag alloy/Au flash

2.0 × 10

ope. (Except for switch operation parts)

1.0 × 105ope. (At rated control voltage) 85 to 110 % of rated operating voltage

2,000 Vrms for 1 min: Between live and dead metal parts 2,000 Vrms for 1 min: Between input and output

2,000 Vrms for 1 min: Between live and dead metal parts 2,000 Vrms for 1 min: Between input and output 1,000 Vrms for 1 min: Between contacts

Between live and dead metal parts

Min. 100 MΩ: Between input and output

Between contacts

Min. 100 MΩ: Between live and dead metal parts

Between input and output

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)

— —

—

1.0 × 10

ope. (At rated control voltage)

12 to 24 V DC

—

Max. 3 W

100 to 240 V AC

50/60 Hz common

Max. 10 V A

100 mA, 30 V DC

12 to 24 V DC

—

Max. 3 W

DC type

Transistor output type

AC type DC type

Rating

Time accuracy (max.)

Contact

Life

Electrical

Mechanical

Operating conditions

Operating voltage Frequency Power consumption Control capacity (resistive) Time range

Time counting direction

Operation mode Signal, Reset, Stop input

Lock input Input signal Indication

Power failure memory method

Operating time fluctuation Temperature error Voltage error Setting error Power off time change

error Contact arrangement Initial contact resistance Contact material

Mechanical Electrical

Operating voltage range

Initial breakdown voltage

Initial insulation resistance (At 500 V DC)

Operating voltage reset time

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

Temperature rise

Functional Destructive

Vibration resistance

Min. 98 m 321.522 ft./s

(4 times on 3 axes)

Min. 294 m 964.567 ft./s

(5 times on 3 axes)

–10° C to 55° C +14° F to +131° F

Max. 85 % RH

860 to 1,060 h Pa

—

11-pin/screw terminal

IP66 (front panel with rubber gasket)

20 % or less — 20 % or less

Functional

Destructive Ambient temperature Ambient humidity Air pressure Ripple rate

Connection Protective construction

Shock resistance

Specifications

Dimensions (units: mm inch)

• LT4H digital timer

Terminal layout and wiring

• Pin type

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

• Screw-down terminal type

• Dimensions for through-panel installation (with adapter installed)

•

Dimensions for surface mount installations• Installation panel cut-out dimensions

The standard panel cut-out dimensions are shown below. Use the installation frame (ATA4811) and rubber gasket (ATC18002).

• For connected installations

Note 1: The installation panel thickness should be between 1

and 5 mm .039 and .197 inch.

Note 2: For connected installations, the waterproofing ability

between the unit and installation panel is lost.

DOWN

RESET

LOCK

TIMER LT4H

OP.

1.890

5.5

.217

70.1

2.760

55.6

2.189

7.5

.295

(44.5

(1.752

(44.5

(1.752

5.5

.217

64.5

2.539

7.5

.295

Screw-down terminal type

(through-panel installation)

Screw-down terminal type Pin type

Pin type (through-panel or surface mount installation)

DOWN

RESET

LOCK

TIMER LT4H

OP RST LOCK

h m s

Installation frame ATA4811 (supplied)

Installation panel

Rubber gasket ATC18002 (supplied)

1.890

2.598

1.969

.039

63.5

2.500

(44.5

(1.752

DOWN

RESET

LOCK

TIMER LT4H

OP RST LOCK

h m s

11P cap ATA4861 (sold separately)

Installation frame ATA4811 (supplied)

Installation panel

Rubber gasket ATC18002 (supplied)

1.890

2.598

1.969

.039

3.543

DIN rail terminal block ATC18004 (sold separately)

Device installation rail ATA48011 (sold separately)

95.5

3.760

80 min.

3.150

80 min.

3.150

-0.6 0

1.772

-.024 0

1.772

-.024 0

A = (48 × n – 2.5)

–0.6

-0.6 0

1.772

-.024 0

8 9

Reset Signal Stop Lock

COM

Operation voltage

(+)(–)

8 9

Reset Signal Stop Lock

Operation voltage

(+)(–)

1 2 3 4 5

6 7 8 9 10

NO NC

COM

Reset Signal Stop Lock

Operation voltage

(–)(+)

1 2 3 4 5

7 8 9 10

Reset Signal Stop Lock

Operation voltage

(–)(+)

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