Cosel KHNA240F Kullanım Kılavuzu - Sayfa 4

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Sayfayı Yazdır
1.12 Derating for low temperature start-up
¡ Derating shown in Table 5.5 is required for low temperature start-
up.
Table 1.4 Derating for low temperature start-up
No.
Model
1
KHEA30F, KHNA30F
2
KHEA60F, KHNA60F
3
KHEA90F, KHNA90F
4
KHEA120F, KHNA120F
5
KHEA240F, KHNA240F
6
KHEA480F, KHNA480F

2 Peak Current

¿ KHEA120F/240F/480F, KHNA120F/240F/480F
¡ The units can generate the peak current under the following con-
ditions.
-t1[5sec
-Ip[Rated peak current
-Iave[Rated current
*Please use a maximum of Duty following shown in Table 2.1.
t1
- Duty=
X100 [%]
t1+t2
[A]
t1
t2
Fig.2.1 Peak current
Table 2.1 Maximum Duty by the mounting orientation
Mounting
Input
KHEA120F
orientation
Voltage
KHNA120F
AC85 - 170V
A
AC170 - 264V
B
AC85 - 264V
35%
C
AC85 - 264V
D
AC85 - 264V
E
AC85 - 264V
KH-24
AC-DC Power Supplies DIN Rail Type
temperature range
Load factor
-40 C to -20 C
50%
-40 C to -25 C
75%
Ip : Peak current
Iave : Average current
I : Load current
Maximum Duty
KHEA240F
KHEA480F-24
KHEA480F-48
KHNA240F
KHNA480F-24
KHNA480F-48
20%
20%
15%
20%
35%
5%
20%
June 29, 2020
Instruction Manual
3 Series/Parallel
Operation
3.1 Series Operation
¡ You can use a power supply in series operation. The output cur-
rent in series operation should be lower than the rated current of a
power supply with the lowest rated current among the power sup-
plies that are serially connected. Please make sure that no current
exceeding the rated current flows into a power supply.
+
Power
-
Supply
+
Power
Supply
-
(a)
Fig.3.1 Examples of connecting in series operation
3.2 Parallel Operation
¡ There is no current balance function.
When operating in parallel, such as diode-OR, please use on the
output voltage was adjusted enough to balance the current.
Exceeds the rated output current, the output is shut down.
¡ Redundancy operation is available by wiring as shown below.
I
1
Power
+
Supply
-
I
2
Power
+
Supply
-
Fig.3.2 Example of connecting in redundancy operation
Even a slight difference in output voltage can affect the balance
between the values of I
and I
1
Please make sure that the value of l
current of a power supply.
l
[ rated current value
3
+
Power
-
Supply
+
Power
-
Supply
(b)
I
3
.
2
does not exceed the rated
3