SECTION 4
OPERATION
60
4.6.3 GENERAL SETUP (continued)
GENERAL SETUP 2: 4
1 INITIAL VOLTAGE 5
2 KEYBOARD LOCK 6
3 CURRENT PROTECT 7
The following pages describe each menu item shown above.
4.6.3.1 UPC SETUP
UPC SETUP is used to select meter sense point, enable or disable Continuous Self Calibration (CSC), set
the Programmable Output Impedance (Option), set transition time and voltage and frequency limits.
From any METER display (V/I, AMPS or POWER), press the
fn
key to enter SETUP MODE.
From the SETUP display, press
3
to enter GENERAL SETUP 1.
From the GENERAL SETUP 1 display, press
1
to enter UPC SETUP.
UPC SETUP: SENSE=INT, CSC=OFF
PROG.Zo-Hit EDIT. TRANSITION TIME=0.0000
FREQ. LIMITS MIN=45 MAX=5000
VOLTAGE LIMITS MIN=0 MAX=600
SENSE
:
INT
ernal or
EXT
ernal. This is the sense point for metering and CSC.
EXT
ernal
uses the remote sense terminals on the rear panel of the Power Source.
CSC
:
OFF
or
ON
. Continuous Self Calibration. If EXTernal SENSE is selected, CSC
may be used to compensate for output wiring losses and maintain accurate
program output voltage at the sense point which may be the load.
PROG. Zo
:
Programmable Output Impedance (OPTION) - Press
EDIT
to access the PROG.Zo
menu (
). This option is used to compensate for dynamic loss in the output
circuit or to control the output impedance of the power source by responding in real
time to changes in the output current.
TRANSITION TIME
:
0
to
300
seconds in increments as small as 200 uS. If set to a non-zero value, and
a program is executed, or changes are made in MANUAL MODE or by REMOTE
CONTROL, the UPC will take the specified time to transition from the active
voltage and frequency to the new voltage and frequency. This feature may be
used when it is undesirable to cause abrupt changes to the output power signal.
Transition Time does not affect transient operation. Waveform and phase angle
changes take effect at the end of the Transition.
FREQ LIMITS
:
20.00
to
5000
- Sets the MINimum and MAXimum programmable frequency limits
of the UPC. The default MINimum is set to 45 Hz for safe operation with output
transformers. Before attempting to use very low frequencies with any magnetics,
be aware of Volt-Second limitations.
VOLTAGE LIMITS
:
Sets the MINimum and MAXimum allowable voltage range. This is useful for
protecting delicate loads. The voltage range is 0-150 Vac when the output is Direct
Coupled and 0-(150 x XFMR Ratio) when XFMR Coupled.
