Troubleshooting, Diagnostic codes for 700va and 1kva, Load battery – Minuteman UPS MCP-E User Manual

Page 18

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17

Possible Cause

Symptom

What To Do

TROUBLESHOOTING

E10 is displayed after
turning on unit

Configuration dip switch is in
the off position

Turn Dip Switch #1 to on position
as defined on page 13

When turned on, the
unit operates in battery
mode only

No AC utility power present
and unit Cold start function is
enabled

Check utility input power and
contact local service company if
required to correct utility problem

The unit switches from
normal to battery mode
frequently

The fluctuation of the input utility
voltage or frequency is beyond
the preset guidelines

Check the input utility condition.
Adjust Sync Range to 3Hz.
Contact loacal service personnel if
utility remains bad

The unit switches to
bypass mode
occasionally and then
switches back

The unit may be overloaded
periodically by a random load
increase

Verify if the load may be affected
by a printer or excessive loading
such as numerous phones etc.
remove excessive load to eliminate

Diagnostic codes for 700VA and 1KVA

The 700VA and 1000VA units use LED displays to notify the User of an error detected by
the internal diagnostics system. The letter "E" is assumed and is not displayed on the LED
graph. The top row of LED's indicate the first number of the "diagnostic error" code. As an
example: if the third LED is illuminated, the first character of the "diagnostic error" code is 3.
The second row of LED's indicates the second number in the diagnostic error code. As an
example: if the second LED is illuminated, the second character of the "diagnostic error"
code is 2. These examples would provide an diagnostic error message of E32 with the "E"
assumed for all error codes. A sample of E32 is shown below for your reference.

LOAD

BATTERY

"EXAMPLE OF DIAGNOSTIC ERROR CODE E32"

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