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PAGE 4
3.
Connect the power (100-240 VAC / 140-340 VDC).
4.
a.
Close switch (K1) to turn power ON from the supply.
b.
Adjust the output voltage (using Potentiometer V) to 24 VDC.
c.
Open switch (K1) to turn power OFF from the supply.
5.
Connect the load to the output terminal.
Be sure to wire the load observing the proper polarity on the unit and ensure that the
Warning:
maximum working current is ≤ 3 A.
7.
Close switch k1 to turn power ON from the supply.
5
Uninterruptible Power Supply (UPS) Function
The UPS function uses an external battery to provide power in the event that the power source stops
providing power or is interrupted.
1.
For output and short circuit protection, ensure that the Switch/Short Circuit jumper block is
installed and properly seated.
2.
Adjust the current (using Potentiometer A) for maximum load current protection by rotating fully
clockwise.
3.
Connect the power (100-240 VAC / 140-340 VDC).
4.
Adjust the output voltage (using Potentiometer V) to 24 VDC.
5.
Disconnect the AC/DC power wire.
6.
Wire switch K2 and fuse wire F1 and the External Battery
Be sure to wire switch K2 and fuse wire F1 and the External Battery observing the proper
Warning:
polarity on the unit.
7.
Re-connect the power (100-240 VAC / 140-340 VDC).
Note: If the battery voltage is over +24 VDC, adjust Potentiometer V to the applicable voltage.
Note: When using the UPS function, the output is normally powered by the line voltage. When the line
and battery are connected, the battery will be charged. If the line voltage is removed, the output is
supplied by the battery. Switch K2 allows the battery to be disconnected, and fuse F1 protects the battery
side of the circuit. The battery current is ≤ 3 A.
No part of this publication may be reproduced without the prior agreement and written permission of Horner APG, Inc.
Information in this document is subject to change without notice.
.
02 AUG 2006
AC/DC Input
Power
Ground
100-240 VAC /
140-340 VDC
ON Switch /
Current
Short Circuit
Adjust
Jumper Block
(Pot. A)
Figure 5 –UPS Function
+24 VDC
Load
Voltage
F1
Adjust
(Pot. V)
K2
External
Battery
MAN0814-01
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