Set The Under-Voltage Protection - Keysight Technologies RP7900 Serie Guide D'utilisation Et De Maintenance

4 Using the Regenerative Power System
panel will be set. A watchdog protect can be cleared as described under Clear Output Protection
Functions.
The watchdog delay can be programmed from 1 to 3600 seconds in 1-second increments. To enable
the watchdog timer and specify a delay value, proceed as follows:
Front Panel Menu Reference
Select Protect\WDog
Check Enable Watchdog to enable the watchdog
timer.
Enter a value in the Watchdog Delay box. Then press
Select.

Set the Under-Voltage Protection

This information applies to models RP793xA and RP794xA only.
The under-voltage protection will turn the output off if the output voltage falls below the programmed
low voltage setting. The voltage circuit monitors the voltage at the + and – sense terminals.
This feature is used when discharging batteries to prevent the battery voltage from dropping below
the low voltage setting.
In voltage priority mode, the output voltage must be at the target value before the under-voltage
protection is enabled to prevent the unit from tripping during output up-programming. A delay can be
set that is longer than the output up-programming time to prevent the protection from tripping during
the voltage transition.
In current priority mode, if the output is turned on with the voltage limit set to a value below the low-
voltage setting, the under-voltage protection will also trip.
The under-voltage protection delay can be programmed from 20.48 microseconds to 2611 seconds in
20.48 microsecond increments. To enable the under-voltage protection and specify a delay value,
proceed as follows:
Front Panel Menu Reference
Select Protect\UVP
Enter a value in the UVP level box.
Then check Enable UVP
Enter a value in the UVP Delay box.
Then press Select.
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SCPI Command
To enable the output watchdog timer:
OUTP:PROT:WDOG ON
To set the output watchdog timer to 120 seconds:
OUTP:PROT:WDOG:DEL 120
SCPI Command
To set the UVP level to 2 volts:
VOLT:PROT:LOW 2
To enable low-voltage protection:
VOLT:PROT:LOW:STAT ON
To specify a protection delay of 5 seconds:
VOLT:PROT:LOW:DEL 5
Keysight RP7900 Series Operating and Service Guide