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LT4H - digital timer

LT4H - digital timer
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14 LT4H DIN 48 SIZE DIGITAL TIMER LT4H Features • 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. • Simple Operation Seesaw buttons make operating the unit even easier than before. • 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. • Conforms to IP66’s Weather Resistant Standards The water-proof panel keeps out water and dirt for reliable operation even in poor environments. • Screw terminal (M3.5) and Pin Types are Both Standard Options The two terminal types are standard options to support either front panel installation or embedded installation. • Changeable Panel Cover Also offers a black panel cover to meet your design considerations. • Compliant with UL, c-UL and CE. 48 1.890 48 1.890 64.5 2.539 Pin type Screw terminal type UL File No.: E122222 C-UL File No.: E122222 mm inch * A rubber gasket (ATC18002) and a mounting frame (AT8-DA4) are included. 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 delay Signal OFF delay Pulse One-shot Pulse ON-delay Signal 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 Part names DOWN UP LOCK RESET LOCK h m s RST OP. LT4H Time delay indicator TIMER Elapsed 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) ON 1 2 3 4 5 6 7 8 DIP switches (Same for screw terminal type and 8-pin type) 09/2009

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15 LT4H Type Item Relay output type AC type AC/DC type 100 to 240 V AC, 24 V AC, 24 V AC/DC 50/60 Hz common Max. 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...

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16 LT4H 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 shown below. Use the mounting frame (AT8-DA4) and rubber gasket (ATC18002). • For connected installations Note) 1: The installation panel thickness should be between 1 and 5...

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17 LT4H Setting the operation mode, time range and time Setting 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 time Set the set time with the keys (UP and DOWN keys) on the front of the LT4H timer. DIP switch Item DIP switch No. 1 2 3 ON ON ON A: Power on delay 1 OFF OFF OFF A2: Power on delay 2 ON OFF OFF B: Signal on delay OFF ON OFF C: Signal off delay ON ON OFF D: Pulse One shot OFF OFF ON E: Pulse On delay ON OFF ON F: Signal Flicker OFF ON ON...

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18 LT4H Operation mode T: Set time t1, t2, t3, taOperation type Power on delay (1) Explanation Time chart • Set the operation mode section of the DIP switches (no.’s 1, 2, and 3) on the side 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” (subtraction). • 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 OFF ON OFF ON...

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19 LT4H Operation type Pulse One-shot Explanation Time chart • Set the operation mode section of the DIP switches (no.’s 1, 2, and 3) on the side 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 start input beforehand. D Pulse On delay E Signal...

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