Xantrex Technology XG 850 manual Over Temperature Protection, Interlock Enable/Disable

Remote Operation

Over Temperature Protection

The over temperature protection (OTP) is the alarm that protects the unit in case of ventilation blockage, fan failure, or some other event that cause the unit to overheat. The OTP can be masked to disable it. To mask an alarm, see “Alarm Masking” on page 3–21 which maps out the bit position for each of the flags.

The alarm masking command can be entered using the SCPI command.

The SCPI command (s) for these instructions are:

[:]SYSTem[<channel(s)>]:PROTection:LATCh

[:]SYSTem[<channel(s)>]:PROTection:MASK

The OTP alarm can also be have its output latch on clearing. See “Alarm Output Latching” on page 3–22. The On setting shown by the front panel (“Using Over Temperature Protection Lock (OTP)” on page 3–29) maps to having the OTP latch flag set. The OFF setting maps to having the OTP latch flag cleared. The default is to have the flag cleared.

Interlock Enable/Disable

The interlock feature is explained in “Interlock Function” on page 3–32. Use the following command to enable and disable interlock. Enabling interlock will allow the interlock feature to trigger based on the conditions described in “Interlock Function” on page 3–32. This feature can only be controlled using a SCPI command as there is no front panel equivalent. The default value of the interlock is to be disabled.

Important: The Interlock alarm cannot be masked or latched through the alarm protection mechanisms. It can only be enabled or disabled using the following command.

Commands:

[:]SENSe[<channel>]:INTerlock[:STATe] {?ONOFF}

Where

ON enables the use of interlock protection.

OFF disables the use of interlock protection.

5-68 M370078-01