Instruction manual

3 Peak Current
4.1 Series operation
¡
Series operation is possible by connecting as shown in Fig.4.1.
Output current in series connection should be lower than the low-
est rated current in each unit.
4 Series / Parallel
Operation
¿
PBA300F-24, PBA600F-24, PBA1000F-24,
PBA1500F-24 / 36 (There is not setting in
other models.)
¡
Peak current can output by the following conditions.
-
AC170 - 264V
-
t1
[
10 [sec]
-
Ip
[
Rated peak current
-
Iave
[
Rated current
-
Duty=
t1
X
100 [%]
[
35%
t1+t2
2.9 Alarm
¿
PBA300F, 600F, 1000F, 1500F
¡
Table 2.2 shows the alarm function built-in the power supply.
Please note that the alarm signal might take several seconds and
be output.
¡
Notes when you use PG signal are shown below.
1
The PG signal turns to be ”High” when the output voltage is
turned off with remote ON / OFF.
2
The PG signal may turn to be ”High” when the output current
becomes 10% or less of the ratings current in parallel operation.
Then, the fans, too, stop.
3
The PG signal may turn to be ”High” when the output voltage is
varied to about 0V and varied rapidly by external adjustment at
few output current.
¡
The PG signal circuit (PG, PGG) is isolated from input, output, FG,
RC and AUX.
Unit type
Instruction Manual
A-24
PBA
Unit type
Instruction Manual
A-25
PBA
Fig.2.2 When not using remote sensing function
Fig.2.3 When using remote sensing function
Fig.4.1 Examples of connecting in series operation
Fig.3.1 Peak current
Load
(a) (b)
Load Load
Power
Supply
+
-
Power
Supply
+
-
Power
Supply
+
-
+
-
Power
Supply
[A]
Output current
Ip:Peak current
Iave:Average current
t1 t2
+
M
Short at CN1
(H-SN-19)
+
S
-
S
CN1
-
M
+
V
-
V
Load
C1
+
M
Wire as close as possible
+
S
-
S
CN1
-
M
+
V
-
V
Load
C1R2
R1
Table 2.2 Explanation of alarm
Alarm Output of alarm
PG
The PG signal is "Low" when the
power supply operates correctly.
The signal turns to be "High"
when the fan stops or the power
supply stops.
Open collector method
Good: Low
(0.5V max at 10mA)
Bad : High or Open
50V 10mA max
100kW0.1 F
PG
PGG
Fig.2.4 Internal circuit of PG