SECTION 4 OPERATION
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4.4.1 PROGRAM EXECUTION
To use Program Operate Mode, from any meter display press the PROGRAM key. The PROGRAM display
will become active. The most recently executed program will be displayed. You may enter a new program
number then press ENTER to view it.
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=120° PHc=240°
Pressing EXECUTE now will cause that program to be executed and the V/I METER display to be active.
V/I METER:
FREQ=60.00 Va=120.0 Vb=120.0 Vc=120.0
SENSE=INT Vab=208.0 Vbc=208.0 Vca=208.0
PROGRAM #1 Ia=00.0 Ib=00.0 Ic=00.0
4.4.2 TRANSIENT EXECUTION
The UPC must be in Program Operate Mode to execute a transient and the active program must have a
transient stored, this is indicated by #SEGS=1 or more, in the lower left hand corner of PROGRAM display.
From any metering display, pressing the TRANS key will start the transient at positive zero crossing of phase
A Pressing the TRANS key again will stop the transient if presently active, or initiate a new transient
instance.
General steps to create a transient program are as follows.
1. Create or edit a program using the method described in (4.5.1). Executing the program at this
point is optional.
2. Create or edit the transient portion of the program using the method described in (4.5.2).
3. Execute the program as described in (4.4.1).
4. Execute the transient by pressing the TRANS key. Pressing the TRANS key again will stop the
transient if still active.
The most direct method to create a transient event within a program is as follows.
1. From the V/I meter, press PROGRAM, enter the program number, press ENTER.
2. Press EDIT. Change steady-state values if desired, pressing ENTER after each entry.
3. Press EDIT again. Change transient segment values if desired, pressing ENTER after each
entry. Setting T to 0 in the first segment makes the transient a cycle based transient.
Continue pressing ENTER to create new segments.
4. Press STORE. Enter the number of desired events then STORE again.
5. Execute the program’s steady-state values by pressing PROGRAM, EXECUTE.
6. Execute the program’s transient values by pressing TRANS. Pressing the TRANS key again will
stop the transient if still active.
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