Xantrex DC XG 850 User Manual download pdf (Page 193)

Configure Other Protection Mechanisms

M370078-01 5-67

Configure Other Protection Mechanisms

Foldback Protection

Foldback protection causes the output of the power supply to shut down if

the selected regulation mode is entered and the configured delay time

expires. A delay time may be specified as well. The only way to clear

foldback is by pressing the rotary Adjust/Enter control for 3 seconds and

executing the Clear command.

Command:

[:]OUTPut[<channel>]:PROTection:CLEar

Setting the Foldback Mode

The following command will set the foldback mode. The mode selected

by the character mnemonic sent will indicate which mode will trigger the

foldback alarm to begin counting. For example, if the command is sent

with the CV mnemonic and the output is enabled with no load attached

(open circuit), the unit will operate in constant voltage mode and the

foldback counter will begin counting. If the CC mode was set and the

output was enabled with no load connected, the unit will operate in CV

mode and the foldback counter will not trigger.

To set the foldback mode, send the command:

Command:

[:]OUTPut[<channel>]:PROTection:FOLDback {?|CC|CV|NONE}

Where:

NONE indicates foldback protection is disabled.

CC indicates the supply will shut down due to constant current condition.

CV indicates the supply will shut down due to constant voltage.

The default value is NONE.

To set the foldback delay, send the command:

Command:

[:]OUTPut[<channel>]:PROTection:FOLDback:DELay

<delay_time>

Where:

<delay_time> is a value in the range of 0.5-50 seconds. The unit of

second is the default and no units should be used with this parameter.

(Increments of 0.1seconds are allowed.).

The default value is 0.5 seconds.

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Xantrex DC XG 850 User Manual Page 193