Front Panel Controls And Indicators; Power Source Front Panel - Pacific UPC-32 Operation Manual

4.2

FRONT PANEL CONTROLS AND INDICATORS

This section shows the locations and defines the functions of the front panel controls and indicators of
the UPC as installed in an AMX/ASX Series power source. Operation of an UPC installed in an SCU is
identical except the SCU has no Output Power Switch. See figure 4.1.

4.2.1 POWER SOURCE FRONT PANEL

1) INPUT POWER
(Circuit Breaker)
2) OUTPUT POWER
(Rocker Switch)
(AMX and ASX
series only)
3) OUTPUT POWER
(LEDs)
4) OUTPUT COUPLING
(LEDs)
5) OUTPUT FORM
(LEDs)
Used as the main input power ON/OFF control and protects the
power source from drawing excessive input current from the input
A.C. line.
Controls the Output Relay between the power source and the load
and provides a means of manually disconnecting output power.
This switch must be in ON/AUTO to allow the UPC to control the
Output Relay. In the OFF position the UPC cannot close the Output
Relay.
ON is illuminated when the Output Relay is closed.
OFF when the Output Relay is open.
SHUTDOWN indicates the Power Source is in an error condition.
DIRECT is illuminated when the Power Amplifier is directly
connected to the Output Relay.
TRANSFORMER is illuminated when the Power Amplifier is
connected to Transformers and the Transformers are connected to
the Output Relay.
1 PHASE (1Φ) is illuminated when the Power Source is connected
to the 1Φ Output Relay. Only the 1Φ Output Terminal will become
active.
2 PHASE (2Φ) is illuminated when the Power Source is connected
to the 3Φ Output Relay. Only ΦA and ΦB Output Terminals will
become active.
3 PHASE (3Φ) is illuminated when the Power Source is connected
to the 3Φ Output Relay. ΦA, ΦB and ΦC Output Terminals will
become active.
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SECTION 4 OPERATION