Quick Test - Tripp-Lite PDUMH15AT El Manual Del Propietario

4. Configuration and Operation
4.1.2 Automatic Transfer Switch Source Selection
The PDU will power up if one of the input sources is greater than the minimum startup voltage. In normal
operation (after power-up), if the presently selected source (primary or secondary) degrades to a lesser
condition, the unit should switch to the alternate source, if that source is of better quality. The unit
prefers the primary source, and will always switch to it in the event that both sources are of the same
(fair or good) quality. If the present source is becoming bad and the alternate source is at least fair, the
unit will switch to the alternate source.
Minimum Startup Voltage
Good Voltage Range
Fair Voltage Range
Bad Voltage Range

4.1.3 Quick Test

After installing the PDU and connecting
equipment, you may test the Automatic Transfer
Switch function by temporarily shutting down the
UPS system connected to the Primary AC input. When
the Primary input UPS is no longer supplying AC
power, the PDU will switch from the Primary input to
the Secondary input, and the Secondary input LED
will illuminate. When the Primary input UPS has been
restarted and resumes supplying AC power, the PDU
will switch back to the Primary input.
Note: The primary and secondary inputs must be connected to separate
sources of utility power. The automatic transfer switch function will be
compromised if the primary and secondary inputs are connected to the
same utility power source. Do not perform a test with equipment that
must remain in productive operation. Any test procedure must prepare
for the contingency that the equipment may lose power. Do not test the
PDU by detaching power cords which are connected to live power
sources, as this eliminates the connection to ground and places your
equipment at risk.
16-11-163-933688.indb 9
Nominal Voltage of PDU
Low-Voltage Models
120V
85V
99-139V
75-98V
0-74V
Primary Input Active
9
( continued )
High-Voltage Models
200-208V 220-240V
163V 163V
172-241V 190-266V
144-171V 144-189V
0-143V 0-143V
Secondary Input Active
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