Pacific UPC-12, Operation Manual

Page: 59 / 140

SECTION 4 OPERATION
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4.5 PROGRAM EDIT MODE
This section describes the Program Edit Mode which allows program and transient definition and editing.
4.5.1 PROGRAM EDITING
To start the Program Edit Mode, from any meter display press the PROGRAM key, program number,
ENTER key then EDIT key. The cursor will move to FORM.
PROGRAM: #1 FORM=3 COUPLING=DIRECT
FREQ=60 Va=120 Vb=120 Vc=120
WFa=1 WFb=1 WFc=1
#SEGS=0 Ilim=50 PHb=120º PHc=240º
The following may be programmed:
FORM : Enter 1, 2, or 3 Phase output FORM.
FORM 1 enables Single phase output and is connected to the 1 Phase Output Relay. Only the
1
Φ
Output Terminal will become active. 1 Phase loads must be connected between the 1
Φ
Terminal and the “N” (neutral) Terminal.
FORM 2 enables the high range Split/Single phase output. The Power Source output is
connected to the 3 Phase Output Relay. Only
Φ
A and
Φ
B Output Terminals will become active
and are 180º out of phase. Voltages are programmed phase to phase. This may be called split
phase and can be loaded between the
Φ A and Φ B Output Terminals or from either phase to “N”
(neutral) at half voltage.
FORM 3 enables 3 phase output and the Power Source is connected to the 3 Phase Output
Relay.
Φ A, Φ B and Φ C Output Terminals will become active. Loads may be connected either
line-to-line or line-to-neutral.
COUPLING : Select DIRECT or XFMR (transformer) coupled output by pressing the +/- key.
DIRECT connects the Power Amplifier directly to the Output Relay.
XFMR connects the Power Amplifier to the Output Transformers and the Transformers are then
connected to the Output Relay.
XFMR(N.NN) : When COUPLING=XFMR is selected, you may enter the transformer ratio. The
transformer ratio for the system (see UPC STATUS, para. 4.6.3.3) must be the same as this
value before the program may be executed. Ratios above 1 are step up and ratios below 1 are
step down.