Constant-Voltage Check; Constant-Current Check; Ovp Check; Uvl Check - TDK-Lambda GENESYS GEN 2400W Series Technical Manual

2. Connect the unit to an AC source as described in Section 3.7.
3. Connect a DVM with appropriate cables for the rated voltage to the output terminals.
4. Press the front panel AC power switch to the ON position.
3.8.3

Constant-Voltage Check

1. Turn on the output by pressing the OUT pushbutton so the OUT LED illuminates.
2. Observe the power supply VOLTAGE meter and rotate the VOLTAGE encoder. Ensure that the Output
voltage varies while the VOLTAGE encoder is rotated. The minimum control range is from zero to the
maximum rated Output (voltage/current) for the power supply model.
3. Compare the DVM reading with the front panel VOLTAGE meter reading to verify the accuracy of the
VOLTAGE meter. Ensure that the front panel VOLT LED is illuminated.
4. Press the front panel AC power switch to the OFF position.
3.8.4

Constant-Current Check

1. Ensure that the front panel AC power switch is at the OFF position and the DVM connected across the
output terminals measures zero Output voltage.
2. Connect a DC shunt across the power supply output terminals. Ensure that the shunt and the wire current
ratings are higher than the power supply Output current rating. Connect a DVM across the shunt.
3. Press the front panel AC power switch to the ON position,
4. Turn on the output by pressing the OUT button so the OUT LED illuminates.
5. Observe the power supply CURRENT meter and rotate the CURRENT encoder. Ensure that the Output
current varies while the CURRENT encoder is rotated. The minimum control range is from zero to the
maximum rated Output current for the power supply model.
6. Compare the DVM reading with the front panel CURRENT meter reading to verify the accuracy of the
CURRENT meter. Ensure that the front panel CURRENT LED is illuminated.
7. Press the front panel AC power switch to the OFF position.
8. Remove the shunt from across the power supply output terminals.
3.8.5

OVP Check

Refer to Section 5.3 for explanation of the OVP function prior to performing the procedure below.
1. Turn the front panel AC power switch to the ON position and turn on the output by pressing the OUT button.
2. Using the VOLTAGE encoder, adjust the Output voltage to approximately 10% of the unit Output voltage
rating.
3. Momentarily press the OVP/UVL button so that the CURRENT meter displays "OUP". The VOLTAGE meter
will display the last OVP setting.
4. Rotate the VOLTAGE encoder CCW to adjust the OVP setting to 50% of the unit Output voltage rating.
5. Wait a few seconds until the VOLTAGE meter returns to display the Output voltage.
6. Adjust the Output voltage toward its maximum and check that the Output voltage cannot be increased more
than the OVP setting.
7. Adjust the OVP limit to its maximum value by repeating Step 3 and rotating the VOLTAGE encoder CW.
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3.8.6 UVL C eck
Refer to Section 5.4 for explanation of the UVL function prior to performing the procedure below.
1. Press the OVP/UVL button TWICE so that the CURRENT meter displays "UUL". The VOLTAGE meter will
display the last setting of the UVL level.
2. Rotate the VOLTAGE encoder to adjust the UVL level to approximately 10% of the unit Output voltage
rating.
The Output current PREView setting must be greater than zero
for the power supply to generate an Output voltage.
The Output voltage PREView setting must be greater than zero
for the power supply to generate an Output current.
83-517-000 Rev. A
NOTE
NOTE
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