Daiichi Electronics WVTT2-92A-34 Manuale di istruzioni - Pagina 13

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8. Input and output relationship

Power receiving (Power purchase)
Current of
leading phase
LEAD
270°
LEAD
Power transmission (Power selling)
Polarity seen from the power receiving side even during
power transmission (P＜0) (fixed V reference)
OUTPUT
[V][mA]
5 1
0 0
-5 -1
1
0
1
0
2
0
2
0
LAG
LEAD
LEAD
Power
Power
receiving
transmission

9. Calibration

Because this product is adjusted, there is not need of calibration especially.
However, if discrepancy arises in an output in long-term use, please adjust in the next way.
Remove the terminal cover and VR cap before adjustment, and attach the VR cap and terminal cover after adjustment.
(1) For the output load, connect an actual load (within the output load range indicated on the name plate)
or a simulated load with the same resistance value as the actual load.
(2) Apply the auxiliary power supply (rated) and the input equivalent to 50% of the rated output value,
and energize for 15 minutes.
(3) Enter the lower limit of the rated output range and adjust with BIAS adjustment VR so that the output
becomes the lower limit.
Next, enter the upper limit of the rated output range and adjust the MAX adjustment VR so that the
output reaches the upper limit.
(The screwdriver for adjustment：Tip width of 1.8 to 2.3mm, Phillips-head screwdriver or flat-blade
screwdriver)
LAG/LEAD polarity
0°
Current of
lagging phase
V
reference
LAG
90°
LAG
180°
OUTPUT
[V][mA]
5 20
3 12
1
4
1[kvar]
1
2[kvar]
2
LAG
INPUT
LAG
Power
transmission
0
1
0
1[kvar]
0
2
0
2[kvar]
LEAD
LEAD
LAG
INPUT
Power
receiving
12
OUTPUT
[V][mA]
5
1
2.5 0.5
0
0
1
0
1
0
2
0
2
0
LAG
LEAD
LEAD
Power
Power
transmission
receiving
Q-222-037
1[kvar]
2[kvar]
LAG
INPUT