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参数资料
| 型号： | LT4HW-DC24VS |
| 厂商： | Panasonic Electric Works |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | TIMER DIGITAL 24VDC SCREW TERM |
| 标准包装： | 1 |
| 系列： | LT4H-W |
| 继电器类型： | 集成式 |
| 功能： | 可编程（多功能） |
| 电路： | SPDT（1 C 型） |
| 延迟时间： | 0.1 秒 ~ 9999 小时 |
| 输出类型： | 机械式继电器 |
| 触点额定电压： | 5A @ 250VAC |
| 电源电压： | 12 ~ 24VDC |
| 安装类型： | 面板安装 |
| 端接类型： | 螺丝端子 |
| 计时调节方法： | 上行/下行数字键 |
| 计时启动方法： | 输入电压 |
| 其它名称： | Q1140702 |
LT4H/-L
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
Table 1: Setting the operation mode
Item
DIP switch
OFF ON
1
DIP switch No.
2
3
Operation mode
1
ON ON ON
A: Power on delay 1
2
3
Operation mode
Refer to table 1
OFF OFF OFF
ON OFF OFF
A2: Power on delay 2
B: Signal on delay
*4
Minimum input reset, start, and
stop signal width
20 ms
1 ms
OFF ON OFF
ON ON OFF
C: Signal off delay
D: Pulse One shot
5
6
7
Time delay direction Addition Subtraction
Time range Refer to table 2
OFF OFF ON
ON OFF ON
OFF ON ON
E: Pulse On delay
F: Signal Flicker
G: Totalizing On delay
8
* The 8-pin type does not have the stop input, so that the dip
Table 2: Setting the time range
switch can be changed over between reset and start inputs.
The signal range of the lock input is fixed (minimum 20 ms).
6
DIP switch No.
7
8
Time range
ON ON ON 0.001 s to 9.999 s
DIP switches
OFF OFF OFF 0.01 s to 99.99 s
ON OFF OFF 0.1 s to 999.9 s
1
2
3
4
5
6
7
8
OFF ON OFF 1 s to 9999 s
ON ON OFF 0 min 01 s to 99 min 59 s
OFF OFF ON 0.1 min to 999.9 min
ON OFF ON 0 h 01 min to 99 h 59 min
OFF ON ON 0.1 h to 999.9 h
(Same for screw terminal type)
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.
Setting procedure 2) Setting the time
Set the set time with the keys (UP and DOWN keys) on the front of the LT4H timer.
Front display section
Q Elapsed time display
W Set time display
E Time delay indicator
R Controlled output indicator
T Reset indicator
Y Lock indicator
U Time units display
3
4
5
6
10
OP.
RST
LOCK
RESET
LOCK
h
m
UP
s
TIMER
1
2
7
8
I UP keys
Changes the corresponding digit of the
set time in the addition direction
(upwards)
O DOWN keys
Changes the corresponding digit of the
set time in the subtraction direction
(downwards)
11
LT4H
DOWN
9
P RESET switch
Resets the elapsed time and the output
{ LOCK switch
Locks the operation of all keys on the unit
? Changing the set time
1. It is possible to change the set time
with the up and down keys even dur-
ing 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
full scale, 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
elapsed time reaches the new set time.
2) If the time delay is set to the subtrac-
tion direction, time delay will continue
until “0” regardless of the new set time.
2. If the set time is changed to “0,” the
unit will operate differently depending
on 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 the
power supply is turned on. However, the
output will be off while reset is being
input.
2) In the other modes, the output turns
on when the start is input. When the
operation mode is C (signal off delay), D
(Pulse one shot), or F (Signal flicker),
only when the start input is on does the
output turn on. Also, when the reset is
being input, the output is off.
? Power failure memory
The EEPROM is used for power failure memory. It has a life of Min. 10 5 over-writings.
The EEPROM is overwriting with the following timing.
Output mode
Power ON delay (2) A2
Addition G
Other modes
Overwrite timing
When power is OFF
Change of preset value or start, reset input
When power is OFF after being ON
When power is OFF after changing preset value
* 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 7 to 6 .
Such an action does not exist by doing lock operation from the front.
All Rights Reserved ? C OPYRIGHT Matsushita Electric Works, Ltd.
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