25
Parallel
CN53
CN53
CN53
CN53
SW1 PIN1
SW1 PIN1
SW1 PIN1
SW1 PIN1
PSU1
PSU2
PSU3
PSU4
1 unit
X
OFF
OFF
OFF
ON
ON
ON
ON
ON
∣
∣
∣
∣
∣
∣
∣
∣
∣
∣
∣
∣
V
V
V
V
ON
V
ON
V
V
V
V
2 unit
3 unit
4 unit
(V : CN53 connected ; X : CN53 not connected.)
PSU1
PSU2
PSU3
PSU4
LOAD
+V
-V
Figure
5 7
-
◎
DA,DB are connected mutually in parallel
DA
DA
DA
DA
DB
DB
DB
DB
If the lines of CN53 are too long, they should be twisted in pairs to avoid the noise
PSU1
CN53
PSU2
CN53
PSU3
CN53
PSU4
CN53
8
8
8
8
10
10
10
10
DA
DA
DA
DA
DB
DB
DB
DB
7
7
7
7
9
9
9
9
5. .
5 2
SHP-10K has the built-in active current sharing function and can be
connected in parallel, up to 4 units, to provide higher output power as
exhibited below :
◎
The power supplies should be paralleled using short and large
diameter wiring and then connected to the load.
◎
In parallel connection, power supply with the highest output Voltage
will be the master unit and its Vout will be the DC bus voltage.
◎
The total output current must not exceed the value determined by
the following equation:
Maximum output current at parallel operation=(Rated current per
unit) (Number of unit) 0.95
×
×
◎
When the total output current is less than 5% of the total rated
current, or say (5% of Rated current per unit) (Number of unit) the
×
current shared among units may not be balanced.
◎
Under parallel operation ripple of the output voltage may be higher
than the SPEC at light load condition. It will go back to normal ripple
level once the output load is more than 5%.
◎
CN53/SW1 Function pin connection
5
26
5.7
Alarm Signal Output
●
There are 4 alarm signals, DC-OK, T-ALARM, Fan Fail and AC-OK, in
TTL signal form, on CN86. These signals are isolated from output.
5.
Remote Control
6
●
The power supply can be turned ON-OFF by using the "Remote
ON-OFF" function.
Figure
5 8
-
Figure
5 9
-
Remote ON-OFF(CN86 pin1) to 5V-AUX(CN86 pin2) Status
Short
power supply ON
Open
power supply OFF
DC-OK & T-ALARM & Fan Fail Signal
AC-OK Signal
Power Supply Status
Power Supply Status
“High” >3.5~5.5V
“High” >3.5~5.5V
“Low” <-0.5~0.5V
“Low” <-0.5~0.5V
OFF
ON
ON
OFF
PIN2 +5V-AUX
PIN1 Remote ON-OFF
CN53
SVR
DIP
SW81
CN86
PIN4,6,8,10 GND-AUX
Application
Circuit
PIN3 T-ALARM
PIN5 Fan Fail
PIN7 DC-OK
PIN9 AC-OK
CN53
SVR
CN86
DIP
SW
5
