There are 2 types of latch-ups: instrument and DAS

If instrument, the VSDAS will show a problem and the latchup 
  will not fix itself until the procedure is run to enable the 
  flag (script V-02)

If DAS, it could be a false reading or it could be a power
	problem - checking the current is the only way to tell.
		If the current is unchanged then everything
		  is fine - notify VIRGO team by e-mail
		If the current is lower than before, VIRGO will
		  need to be called immediately and will have to
		  repower itself


Contingency Script V-02 will be used if VSDAS shows a problem.
VSDAS does show instrument latchups, but it can also show
DAS latchups sometimes.


If VSDAS shows a problem, wait 3 minutes and check if the data
is green again. If not, then it is an instrument latchup and
run the script V-02. If it is, check the current and see if it 
has changed. If no change in current, do nothing except notify
VIRGO by e-mail. If there is a change in current, call VIRGO
immediately.

Two OCD's were made: have the FOT wait for 3 minutes for the
telemetry to update before doing anything; if a latchup
occurs and lasts for more than 3 minutes, check the current
and see if it has changed by 3 or more bits. A delta limit was
created that should do this check automatically.