Remote Operation
5-68
M370078-01
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.
Commands:
[:]SENSe[<channel>]:INTerlock[:STATe] {?|ON|OFF}
Where
ON enables the use of interlock protection.
OFF disables the use of interlock protection.
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.
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