Tektronix Keithley 2268 Series, Справочное руководство

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Series 2268 850 Watt DC Power Supplies Reference Manual Local Operation
2268S-901-01 Rev. A / January 2015 45
CLEARING ALARMS
Clearing Triggered and Manual Alarms
To clear a triggered alarm, use one of the following methods:
•
Turn the power supply Off and then On.
•
Press and hold the rotary Adjust/Enter control for 3 seconds.
To clear a manual alarm:
1. Press and hold the rotary Adjust/Enter control for 3 seconds.
The message will be displayed on the front panel for a few seconds.
Important:
When an alarm is cleared by using this method, only the current
highest precedence alarm is cleared. If another alarm has occurred, then this
alarm will now become the highest precedence alarm and will begin blinking on
the display.
2. Repeat the alarm clearing until you have cleared all alarms.
Clearing a Flash Failure Alarm
The Flash Failure alarm is the only exception for clearing alarms. If a flash failure occurs at
boot time, it can only be cleared by a soft reset key combination press (see “Resetting the
Power Supply” on page 62) or by power cycling the unit. If a checksum error is detected
when recalling a user slot, no modification of settings will occur, and an error will be pushed
to the SCPI error queue. The alarm will clear after a duration per the currently configured
front panel timeout setting.
To clear a triggered alarm, use one of the following methods:
•
Turn the power supply Off and then On.
•
For failures that occur during a recall of user memory settings, wait the duration of the
currently configured front panel timeout.
•
Press and hold the reset key combination (Flash Fail ONLY). See “Resetting the Power
Supply” on page 62.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:PROTection:CLEar