APC 10-40kW 208/480V User's Guide download pdf (Page 16)

16 User Guide APC BC300 Series 40kW 208/450/480V UPS

990-1403

Alarms and Events

High output

voltage (This

alarm is usually

only listed in the

events log)

The output voltage is higher than

the alarm setting. The unit stays in

the normal operation mode. If the

alarm is not cleared, the unit will

transfer to static bypass operation

if bypass is within tolerance. If

bypass is not within tolerance, the

unit will transfer to stand-by and

will not supply output voltage.

If the alarm is still active, put the

UPS into bypass by displaying

the user parameters and

changing “Bypass Operation” to

“ON.” (See the “Parameter

Settings” section in this User

Guide). Then, call APC Global

Service.

High temp.

choke

The temperature in the main choke

is too high. If the problem is not

corrected soon, the unit will

transfer to battery operation.

Find the exhaust vents for the

UPS fans and check to see if the

fans are operating. Do not try to

open the unit, and do not insert

anything into a fan vent. If the

fans are not operating, call APC

Global Service.

High temp.

transformer

The temperature in the main

transformer is too high. If the

problem is not corrected soon, the

unit will transfer to stand-by and

will not

supply output voltage.

Find the exhaust vents for the

UPS fans and check to see if the

fans are operating. Do not try to

open the unit, and do not insert

anything into a fan vent. If the

fans are not operating, call APC

Global Service.

Inverter fuse

blown

One or more of the fuses at the

output of the inverter are blown

(F004, F005, F006). If bypass is

within tolerance, the unit transfers

to static bypass operation. If not,

the unit transfers to stand-by and

does not supply output voltage.

Call APC Global Service.

Inverter voltage

error

The output voltage is too high or too

low. If the alarm was caused by

high output voltage, the unit

transfers to static bypass operation

if bypass is within tolerance. If

bypass is not within tolerance, the

unit transfers to stand-by and does

not supply output voltage. If the

alarm was caused by low output

voltage, the unit transfers to static

bypass operation if bypass is within

tolerance. If bypass is not within

tolerance, the unit transfers to

battery for five seconds and then

transfers to stand-by and stops

supplying output voltage.

If the UPS is in stand-by, restart

the UPS by pressing the green

button inside the door. If the UPS

will not restart, a user may have

started an emergency power off

(EPO) shutdown. Find out if the

EPO shut down the UPS; if it did,

find out why and make sure the

emergency situation has passed.

Then, reset the EPO and restart

the unit by pressing the green

button inside the door. If the unit

will still not restart, call APC

Global Service.

Table 5: Possible Alarms

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 35 36

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