KEPCO KLP Series User Manual, Rev 4 - Manual (Page 50)

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KLP091313
front panel (see PAR. 3.3.2) should be checked to ensure that there are no settings outside the
range permitted by the new maximum programmable voltage and current.
• Storage of User-programmed Active Settings (Save/Recall).
• User-determined output Sequences.
• External Triggers: VOLT:TRIG and CURR:TRIG values
• Sequences programmed using LIST commands.
To define a virtual model, proceed as follows.
1. If the status display shows SET, tap either the CURRENT or VOLTAGE controls to take the
unit out of setpoint mode (status display goes from SET to blank)
2. Using a thin tool (e.g., a paper clip), press the FUNCTION switch once so that the status dis-
play reads VIRT. The DC VOLTS and DC AMPERES displays show the programmed maxi-
mum voltage and current of the virtual model. To exit without changing the virtual model,
rotate either VOLTAGE or CURRENT control until Status display reads EXIT, then tap DC
OUTPUT switch. To change the virtual model limits proceed to step 3.
3. Tap the DC OUTPUT switch once. The status display shows PASS. Enter the unit password
(see PAR. 3.2.8) and tap DC OUTPUT switch to accept the number. When the password is
accepted, the virtual model settings in the DC VOLTS and DC AMPERES displays begin
blinking.
4. Rotate VOLTAGE and CURRENT controls until desired values appear in DC VOLTS and DC
AMPERES displays. Tap the associated control to change digits. Pressing and holding the
control in while turning changes adjustment resolution (see PAR. 3.2.4). Under no conditions
will the power supply accept limits beyond its maximum ratings of voltage and current. As the
primary parameter is increased, the power supply will automatically decrement the second-
ary parameter as necessary to maintain maximum output power at 1200 Watts. Maximum
current shown on DC AMPERES display is automatically limited to 1200W maximum.
5. Press DC OUTPUT switch to accept virtual model settings. The unit displays done.
NOTE: Accepting a new virtual model resets the setpoints to zero Volts and minimum
Amperes, resets the OVP and OCP values and, if DIP switch position 3 is enabled,
clears stored setpoints of voltage and current as described above.
3.2.10 SETTING VOLTAGE OR CURRENT
The VOLTAGE and CURRENT controls adjust output voltage and current limit, respectively,
when the unit is in constant voltage (CV) mode and adjust voltage limit and output current,
respectively, when the unit is in constant current (CC) mode. The mode (CV or CC) is deter-
mined by the load together with the programmed settings. As long as the voltage across the
load produces a current that is less than the programmed Current setpoint, the unit operates in
CV mode (voltage programmed to voltage setpoint, current limited by current setpoint). If the
load changes to the point that current through the load reaches the current setpoint, the unit
automatically enters CC mode (current programmed to current setpoint, voltage limited by volt-
age setpoint).
Output voltage or current can be set at the front panel in two ways: Real-time adjustment (PAR
3.2.10.1) or Setpoint adjustment (PAR. 3.2.10.2).