1 Terminal Block
UAF-6
l
UAF500S
Pin No.
Function
Connection is not possible.
Connection is not possible.
Connection is not possible.
Self sensing terminal.(Do not wire for external connection.)(-M)
-Remote sensing(-S )
Self sensing terminal.(Do not wire for external connection.)(+M)
Connection is not possible.
+Remote sS )
Voltage balance(VB)
Current balance(CB)
< Connector >
AC(L)
AC(N)
Frame ground
NC
Connector
Output voltage adjustable potentiometer
LED
-Output
+Output
2 Function
2.3 Overcurrent protection
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The overcurrent protection circuit is built-in to prevent the unit
from a short circuit and overcurrent condition. The unit automati-
cally recovers when the fault condition is cleared.
If the output voltage drops more than 50% of the rated voltage in
an overcurrent protection mode, the average current will also be
reduced by the intermittent operation.
The overvoltage protection circuit is built-in and comes into effect
at 115 - 140% of the rated voltage. The AC input should be shut
down if overvoltage protection is in operation. The minimum inter-
val of AC recycling for recovery is 5 minutes.
The recovery time varies depending on input voltage.
Please avoid applying the over-rated voltage to the output termi-
nal. Power supply may operate incorrectly or fail.In case of oper-
ating a motor etc. , please install an external diode on the output
terminal to protect the unit.
Adjustment of output voltage is possible by using potentiometer.
Output voltage is increased by turning potentiometer clockwise
and is decreased by turning potentiometer counterclockwise.
(1)When not using remote sensing function
(2)When using remote sensing function
2.4 Overvoltage protection
2.5 Output voltage adjustment range
2.6 Remote sensing
Remarks:
2.1 Input voltage range
2.2 Inrush current limiting
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The range is from AC85V to AC264V.
AC input voltage must have a range from AC85V to AC264V for
normal operation. If the wrong input is applied, the unit will not op-
erate properly and/or may be damaged.
In cases that conform with safety standard, input voltage range is
AC100-AC240V(50/60Hz).
Inrush current limiting is built-in.
If a switch on the input side is installed, it has to be the one han-
dling the input inrush current.
The thyristor technique is used for protection from inrush current.
When power is turned ON/OFF repeatedly within a short period of
time, it is necessary to have enough time between power ON and
OFF to operate resistance circuit for inrush current.
< Connector >
+S
+M
C1
C2
C3
+
+
+
-S
-M
-
+
(-)
(+)
R1
Attention to
connection
Use twisted - pair wire or shielded - wire
Attention to
connection
Load
UAF
Instruction Manual
AC-DC Power Supplies Enclosed type
June 29, 2011
