RE: Model 170 with UPS on V4.2.0

[Glenn Ericson <Glenn-Ericson@xxxxxxx>]

We will see tomorrow - The UPS  red  lighted itself and  service is on the
way.
I  don't  doubt the two UPS  systems are set at different  lower & upper
limit levels

LET Yeah  know what  happens.
Glenn

At 03:42 PM 6/22/98 -0500, you wrote:
>One possibility - maybe you are suffering short 'brownout' periods (low
>voltage) in your power supply ?
>These would usually go unnoticed by looking at the lights, listening to
>a radio, etc. (which is how the power companies get away with doing it
>deliberately during periods of high demand - like heavy air conditioning
>usage on hot summer days).
>You could have two UPS' and maybe only one experiences the problem ?
>Well that could be because each UPS would have it's own (usually
>configurable) settings for low and high voltage limits.  Maybe one is
>set a few volts higher than another and doesn't sense a brownout that
>the other one reacts to.
>
>We have an old BEST FC7.5Kva UPS powering the computer room (and half
>the power outlets in our office, so we can plug every PC and terminal
>into it), and some days it will kick on several times for brief periods.
>(There's a minimum on period of about 14 seconds when it does trigger). 
>Our low/high voltage limits are set at 108/130.
>
>A less likely cause of momentary UPS activation could be a variation in
>the power cycles/second.  The low/high limits on our UPS are set at
>59.5/60.5, and the normal supply varies between 59.95 and 59.96
>cycles/second.
>
>
>Neil Palmer                                AS/400~~~~~      
>NxTrend Technology - Canada   ____________          ___  ~     
>Thornhill, Ontario,  Canada   |OOOOOOOOOO| ________  o|__||=   
>Phone: (905) 731-9000  x238   |__________|_|______|_|______)   
>Cell.: (416) 565-1682  x238    oo      oo   oo  oo   OOOo=o\   
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>mailto:NPalmer@NxTrend.com    AS/400  The Ultimate Business Server      
>http://www.NxTrend.com
>
>> -----Original Message-----
>> From:        Glenn Ericson [SMTP:Glenn-Ericson@att.net]
>> Sent:        Sunday, June 21, 1998 9:52 AM
>> To:  MIDRANGE-L@midrange.com
>> Subject:     Model 170  with UPS on V4.2.0
>> 
>> At  least  once or twice a day  the system  issues a CPF 1817  saying
>> lost
>> utility  power  then  ruins  3 - 20 seconds on  UPS  and reverts back
>> to
>> normal power message.  
>> 
>>  Across the  last 9 days it  has happened 5 -6 times No lights flicker
>> or
>> other outward appearing  electrical failures are noticeable.
>> 
>> Is  anyone experiencing this  type  error   or is there a PTF out
>> there?
>> 
>> I  checked the  connections between the CPU, Console UPS and  outlets.
>>  all are  well seated.
>> 
>> Configuration - a small  [2159]  model 170 & the  larger power supply
>> 
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Glenn
___________________________________________________
Glenn Ericson,                          
P O Box 701164   East Elmhurst NY 11370-3164 USA                            
Ph. 718 898 9805         Fx. 718 446 1150
AS/400 & Year 2000- - Solutions 
 © 1998copyright,  all rights reserved
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