INPut{1|2}:PROTection:CLEar
Syntax
INPut[{1|2}]:PROTection:CLEar
Description
This command resets the 50 ohm termination protection relay after an input voltage overload occurs
when 50 ohm input impedance is selected.
Remarks
l INPut or INPut1 refers to channel 1; INPut2 to channel 2.
l When 50 ohms is selected, the maximum input voltage allowed is ±5.125 Vpk. If the input voltage
exceeds ~±10 Vpk, which would damage the 50 ohm terminator, a protection relay will open, changing
the actual input impedance to 1 Mohm. If this occurs, this command can be sent to reset the pro-
tection relay.
l If high voltage is still present when this command is sent, the protection relay will not be reset, and
error +302, "Cannot reset input protection; high voltage present" will be generated.
l The INPut{1|2}:PROTection? command returns whether the protection relay has opened due to an
input voltage overload.
l The Voltage Overload bit in the Questionable Data Status Register will be set an input voltage overload
causes the protection relay to open. The bit is cleared by sending INPut{1|2}:PROTection:CLEar to the
affected channel, or by setting the affected channel's input impedance to 1 MOhm (INPut
{1|2}:IMPedance command).
l The instrument disables noise rejection after a Factory Reset (*RST command) or an Instrument Preset
(SYSTem:PRESet command).
Examples
The following example resets the input protection on channel 1.
INP:PROT:CLE
See Also
INPut{1|2}:IMPedance
INPut{1|2}:PROTection?
Keysight 53220A/53230A Programmer's Reference 221
INPut{1|2}:PROTection:CLEar
To Next Page
Loading...
