2 Functional Description
2.1 Operating States
shows the operating area of the device. There are two different modes for high-voltage generation:
1.
constant voltage source CV:
Regulation of the output voltage according to the set value of the output voltage under the condition measured output
current (I
MON
) < set value output current (I
SET
).
2.
constant current source CC:
Regulation of the output current according to the set value of the output current under the condition measured output
voltage (V
MON
) < set value output voltage (V
SET
).
Figure 12: Operating area of the device
2.2 Monitoring
2.2.1 Voltage
The DC link voltage and the internal auxiliary voltages are monitored. If one of these voltages is below or above the specified
limit, high voltage generation is stopped.
WARNING!
WARNING!
High voltage generation is reactivated immediately if the limit values are no longer exceeded or fallen below.
If the device has the option CLD, the maximum value of the output voltage is monitored with an OVP (over voltage protection)
comparator. The factory setting of this voltage threshold is approx. 110% of the maximum output voltage. If the operational
amplifier threshold is exceeded (e.g. due to an internal device error), high voltage generation is blocked.
The output power of the unit must be reduced in accordance with Figure 13: Power reduction vs. input voltage, if the input
voltage is smaller than 95 VAC otherwise the DC link voltage decreases. If the DC link voltage drops below a specified limit, high
voltage generation is blocked.
GPS High Voltage Power Supply Series | Last change: 10.01.2020 |
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