參數(shù)資料
型號(hào)： LT1740-7Z
廠商： POWER-ONE INC
元件分類(lèi)： 電源模塊
英文描述： 1-OUTPUT 500 W AC-DC REG PWR SUPPLY MODULE
文件頁(yè)數(shù)： 24/32頁(yè)
文件大小： 1000K
代理商： LT1740-7Z
BCD20023 Rev. AA, 3-Sep-2008
Page 30 of 32
www.power-one.com
T Series Data Sheet
500 Watt AC-DC Converters
Temperature Sensors T
The T Series battery chargers exhibit a cell voltage selector
switch Z to set the required floating charge voltage at 20 °C
directly at the converter. If this Z switch is used, the 2.23 V/cell
sensor types should be selected in any case as a basis, and
the selection criteria are only the temperature coefficient and
the nominal voltage of the battery. For example, if a 24 V
battery is used, which has a cell voltage of 2.23 V and a cell
temperature coefficient of –3.5 mV/K, the sensor type is S24-
2.23-35-02. The setting on the Z switch should be 2.23.
Table 24: Type survey temperature sensors T
Nominal battery
Sensor type
Cell voltage
Temp. coefficient per cell
Cable length
voltage [V]
[V]
[mV/K]
[m]
24
S24-2.23-30-02
2.23
–3.0
2
24
S24-2.23-35-02
2.23
–3.5
2
24
S24-2.23-45-02
2.23
–4.5
2
36
S36-2.23-30-02
2.23
–3.0
2
36
S36-2.23-35-02
2.23
–3.5
2
36
S36-2.27-35-02
2.27
–3.5
2
48
S48-2.23-30-02
2.23
–3.0
2
48
S48-2.23-35-02
2.23
–3.5
2
48
S48-2.23-40-02
2.23
–4.0
2
48
S48-2.23-45-02
2.23
–4.5
2
48
S48-2.27-30-02
2.27
–3.0
2
48
S48-2.27-35-02
2.27
–3.5
2
48
S48-2.27-45-02
2.27
–4.5
2
For T Series converters without Z selector switch, a sensor
according to both criteria should be selected. In our example it
should be S24-2.23-35-02.
The active temperature sensor T is of robust construction,
mounted into a sealed aluminium tube of 12 mm outer
diameter and 50 mm length. The sensors are waterproof
(IP 66) and high-voltage tested with 1.4 kVDC. Connection
should be done via the colored 3 wire cable to the output of the
converter (Vo+ and Vo–) and the remote control input i/Vcr (pin
28).
Caution: Wrong connection may damage the sensor and the
converter.
Note: Battery specific sensors with cell voltages from 2.23 V up to
2.32 V and temperature coefficients from –2 up to –4.5 mV/K per
cell or different cable lengths are available upon request.
Note: For installation of batteries, see VDE 510 as well as the
recommendations of the battery manufacturers.
+
–
Battery
Vo+
i/Vcr
Vo–
Sensor
cable
Sensor
wires
+
05064b
green
brown
white
Fuse
–
22
12
28
Sensor T
Converter
Fig. 56
Wiring diagram sensor
Table 25: Sensor data
Characteristics
Condition
min
typ
max
Unit
Tsensor
Sensor temperature range
Vcr = 5.5 – 11.5 V
–10
60
°C
Vcr
Control voltage range
Absolute ratings
3.9
15
V
Vcr td
Control voltage tolerance
Tsensor = 20 °C
±0.1
Tsensor = 0 – 53 °C
±0.2
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