Power-One MQC02082 Temperature sensor Datasheet

Electrical
Accessory Products
Temperature Sensors
Temperature Sensors
Description
Power-One offers a wide range of battery charger systems
for power requirements of 50 Watt up to 8000 Watt.
For this purpose Power-One supplies temperature sensors
and adapted power supplies. The batteries (lead acid batteries) are charged according to the battery temperature
and the ambient temerature. If the battery is fully charged it
is maintained at the float charge voltage which represents
the optimum point for maximum available energy in case of
Cell voltage [V]
2.45
need and optimum life expectancy of the battery. The type
of sensor needed is defined mainly by three parameters:
The nominal battery voltage (e.g. 24 V or 48 V), the temperature coefficient of the battery (e.g. –3.0 mV/K/cell) and the
nominal floating charge voltage per cell of the battery
at 20°C (e.g. 2.27 V/cell). The latter two are defined in the
specifications of the battery given by the respective battery
manufacturer.
06139
2.40
2.35
2.30
2.25
2.20
2.15
2.10
-20
-10
0
10
20
UC = 2.27 V, –3 mV/K
UC = 2.23 V, –3 mV/K
30
40
[°C]
50
UC = 2.27 V, –3.5 mV/K
UC = 2.23 V, –3.5 mV/K
Fig. 1
Float charge voltage versus temperature for defined temperature coefficient.
Vi+
Vi–
Power
supply
03099
Vo+
Vo–
R /UCR input
Load
ϑ
Battery
+
–
Temperature sensor
Fig. 2
Functional description
Table of Contents
Page
Page
Description ....................................................................... 1
Temperature Sensors for T and U units ........................... 1
Mechanical Dimensions ................................................... 2
Temperature Sensors for
M, H, S, K, KP, PSx, LW, OK Units .................................. 3
Mechanical Dimensions ................................................... 3
Fail Safe Operation .......................................................... 4
Edition 5/06.2001
1/4
Electrical
Accessory Products
Temperature Sensors
Temperature Sensors for T and U units
T and U units feature a cell voltage selector switch (feature
Z) to set the required floating charge voltage at 20°C directly at the unit. 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 of the
battery and the nominal battery voltage. If for example a
24 V battery is used which has a cell voltage of 2.27 V/cell
and a temperature coefficient of –3.5 mV/K/cell, the sensor
type is S24-2.23-35-02. The setting on the Z switch of the T
or U unit should be 2.27.
For units without the Z selector switch a sensor according
to both criteria should be selected. In our example it would
be S24-2.27-35-02.
For further details please consult the T or U datasheet.
Table 1: Type survey T sensors
Nominal battery
voltage [V]
Sensor type
Part no.
Cell voltage
[mV]
Temp. coefficient
[mV/K/cell]
Cable length
[m]
24
S24-2.23-30-02
MQC02052
2.23
–3.0
2
24
S24-2.23-35-02
MQC02053
2.23
–3.5
2
24
S24-2.23-45-02
MQC02051
2.23
–4.5
2
36
S36-2.23-30-02
MQC02081
2.23
–3.0
2
36
S36-2.23-35-02
MQC02082
2.23
–3.5
2
36
S36-2.27-35-02
MQC02083
2.27
–3.5
2
48
S48-2.23-30-02
MQC02008
2.23
–3.0
2
48
S48-2.23-35-02
MQC02009
2.23
–3.5
2
48
S48-2.23-40-02
MQC02013
2.23
–4.0
2
48
S48-2.23-45-02
MQC02012
2.23
–4.5
2
48
S48-2.27-30-02
MQC02010
2.27
–3.0
2
48
S48-2.27-35-02
MQC02007
2.27
–3.5
2
48
S48-2.27-45-02
MQC02006
2.27
–4.5
2
Other types for different cell voltages or temperature coefficients are available upon request.
05064
+
i/Ucr
Vo+
Vo—
— Sensor
wires
05148
+
Sensor Temperature
sensor
cable
U
28
white
Ucr
12
Vo+
brown
+
22
green
—
Vo–
Battery
Fig. 3:
Connection to the T unit.
– Sensor
wires
Sensor Temperature
sensor
cable
2
white
1
brown
+
9
green
–
Battery
Fig. 4:
Connection to the U unit.
Mechanical Dimensions
All dimensions in mm, tolerances ±0.3 mm unless otherwise specified.
European
Projection
15
12
14.5
25 ± 0.2
09044
l
≤60
adhesive tape
l: 2 m standard length
other cable lengths on request
Fig. 5
T and U temperature sensor with mounting fixture.
Edition 5/06.2001
2/4
Electrical
Accessory Products
Temperature Sensors
Temperature Sensors for
M, H, S, K, KP, PSx, W, OK Units
With M, H, S, K, KP, PSx, W and OK units the sensor signal
acts on the R pin to adjust the output voltage relative to the
battery temperature and the ambient temperature. As these
units in contrast to the T and U units do not feature a cell
voltage selector switch (Z switch) the sensor selection criteria is in every case both the cell voltage and the temperature coefficient (beside the nominal battery voltage).
If the application uses for example a 48 V battery with a cell
voltage of 2.23 V/cell and a temperature coefficient of
–3.0mV/K/cell the sensor S-KSMH48-2.23-30-2 should be
selected.
Table 2: Type survey S-KSMH sensors
Nominal battery
voltage [V]
Sensor type
Part no.
Cell voltage
[mV]
Temp. coefficient
[mV/K/cell]
Cable length
[m]
12
S-KSMH12-2.27-30-2
MQC03005
2.27
-3.0
2
24
S-KSMH24-2.27-35-2
MQC03002
2.27
-3.5
2
24
S-KSMH24-2.27-30-2
MQC03004
2.27
-3.0
2
48
S-KSMH48-2.27-35-2
MQC03001
2.27
-3.5
2
48
S-KSMH48-2-27-30-2
MQC03003
2.27
-3.0
2
Other types for different cell voltages or temperature coefficients are available upon request.
05163
+
R
Vo+
Vo–
– Sensor
wires
Sensor Temperature
sensor
cable
white
brown
green
+
–
Battery
Fig. 6
Connection to a M, H, S, K, KP, LW or OK unit.
Mechanical Dimensions
All dimensions in mm, tolerances ±0.3 mm unless otherwise specified.
European
Projection
55 (2.17")
Fig. 7
S-KSMH temperature sensor.
Edition 5/06.2001
26 (1.02")
9.8 (0.4")
S90051
3/4
Electrical
Accessory Products
Temperature Sensors
Fail Safe Operation
To prevent overcharging of the battery but still maintain a
minimum charging in case of interruption of the sensor signal cable to the power supply, Power-One has designed
units with a special nominal output voltage setting. These
units differ from the respective standard units described in
the datasheet in the nominal output voltage and output
current settings. Without the sensor connected to the R pin
the output voltage will be higher than the nominal battery
voltage to avoid a discharging of the battery but still lower
than the theoretically needed float charge voltage. As soon
as the sensor is connected to the R pin the output voltage
will be set to the correct value.
Table 3:
Nominal battery voltage
[V]
Output voltage setting
(20°C) [V]
12
12.84
24
25.68
36
38.52
48
51.36
60
64.2
Tabel 4: Special units for battery charging
Ubatt [V]
Po 50 Watt
Po 70 Watt
Po 100 Watt
Po 150 Watt
Po 250 Watt
12
LM 1781-7R
LH 1781-2R
LS 4740-7R
LK 4740-7R
24
LM 1782-7R
LH 1782-2R
LS 5740-7R
LK 5740-7R
LKP 5740-6R
36
LM 1783-7R
LH 1783-2R
48
LM 1784-7R
LH 1784-2R
LS 5740-7R
LK 5740-7R
LKP 5740-6R
60
LM 1785-7R
LH 1785-2R
Higher power requirements can be covered by paralleling
of these units. Complete microprocessor controlled systems of un-interuptable power suplies (UPS) are realized
by our Applications Center. Please consult your local
Power-One representant.
Edition 5/06.2001
4/4
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