SECTION 4
OPERATION
31
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 (
).
4.2.1 POWER SOURCE FRONT PANEL
1)
INPUT POWER
(Circuit Breaker)
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.
2)
OUTPUT POWER
(Rocker Switch)
(AMX and ASX
series only)
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.
3)
OUTPUT POWER
(LEDs)
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.
4)
OUTPUT COUPLING
(LEDs)
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.
5)
OUTPUT FORM
(LEDs)
1 PHASE (1
Ф
)
is illuminated when the Power Source is configured for
single phase output. Only the 1
Ф
Output Terminal will become active.
2 PHASE (2
Ф
)
is illuminated when the Power Source is configured for
split (2) phase output. Only
Ф
A and
Ф
B Output Terminals will
become active.
3 PHASE (3
Ф
)
is illuminated when the Power Source is configured for
three phase output.
Ф
A,
Ф
B and
Ф
C Output Terminals will become
active.
6)
LIQUID CRYSTAL
DISPLAY
(LCD)
Gives pertinent information to the user relating to power source
operation.
7)
LOCAL / REMOTE
(KEY and LED)
When the REMOTE INTERFACE is in control of the UPC and has not
issued a local lockout command, this key will return control to the
keyboard.
The LOCAL LED is lit when in LOCAL CONTROL.
The REMOTE LED is lit when in REMOTE CONTROL.
