APC SU1400XLT User Manual download pdf (Page 106)

Dip switch info

Bit Switch Option when bit=1

0 4 Low battery alarm changed from 2 to 5 mins. Autostartup disabled on SU370ci and 400

1 3 Audible alarm delayed 30 seconds

2 2 Output transfer set to 115 VAC (from 120 VAC) or to 240 VAC (from 230 VAC)

3 1 UPS desensitized - input voltage range expanded

4-7 Unused at this time

Status bits

This is probably the most important register of the UPS, which indicates the overall UPS status. Some

common things you'll see:

• 08 = On line, battery OK

• 10 = On battery, battery OK

• 50 = On battery, battery low

• SM = Status bit is still not available (retry reading)

Bit Meaning when bit=1

0 Runtime calibration occurring (Not reported by Smart UPS v/s and BackUPS Pro)

1 SmartTrim (Not reported by 1st and 2nd generation SmartUPS models)

2 SmartBoost

3 On line (this is the normal condition)

4 On battery

5 Overloaded output

6 Battery low

7 Replace battery

Alert messages

These single character messages are sent by the UPS any time there is an Alert condition. All other

responses indicated above are sent by the UPS only in response to a query or action command.

Character Meaning Description

! Line Fail Sent when the UPS goes on-battery, repeated every 30 seconds until low

battery condition reached. Sometimes occurs more than once in the first

30 seconds.

$ Return from

line fail

UPS back on line power. Only sent if a ! has been sent previously.

% Low battery Sent to indicate low battery. Not implemented on SmartUPS v/s or

BackUPS Pro models

+ Return from

low batt

Sent when the battery has been recharged to some level Only sent if a %

has been sent previously.

? Abnormal

condition

Sent for conditions such as "shutdown due to overload" or "shutdown due

to low battery capacity". Also occurs within 10 minutes of turnon.

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APC SU1400XLT User Manual Page 106