Eaton 9155 8-15 kVA.pdf - 第37页

UPS 8 – 15 kV A, 230V 50/60 Hz output User ’ s Guide 1 022403 Revision D 37 Note! Do not dispose of bat ter ies in a ﬁre. The batt er ies may explode. Do not open or mutilate bat ter ies. Released electr olyte is har mfu…

UPS 8 – 15 kVA, 230V 50/60 Hz output

User’s Guide

1022403

Revision D

8. Maintenance

All operations inside the unit must be performed only by a service engineer from the

manufacturer or from an agent, authorised by the manufacturer.

The troubleshooting procedure gives simple remedial if a malfunction occurs in the UPS.

The operator should start the trouble shooting if there is an active alarm indicated on the LCD

screen. Service should be contacted if the active alarm is abnormal and displayed as a service

code.

Call service if you are not able to solve the problem.

Table 36. Typical alarms displayed in the LCD screen of the UPS unit.

Regular service/intervals

The UPS requires very little maintenance if installed in an appropriate environment. In order

to ensure maximum availability of the UPS, manufacturer recommends signing a proactive

service agreement with a local authorised service provider.

Table 37. Routine maintenance intervals recommended by the manufacturer.

Batteries

The condition of the batteries is crucial for operation. The UPS will indicate by audible and

visual alarms if the capacity of the battery bank has decreased. The UPS units are provided

with the automatic battery test and ABM management function to continuously monitor the

condition of the battery bank.

Servicing of batteries should be performed or supervised by personnel knowledgeable about

batteries and required precautions. When replacing batteries, replace with the same type and

number of batteries.

LCD display Description Action

Overload

The connected load needs more power

than the UPS is rated to provide. The

inverter or static bypass is supplying the

excessive load level.

Shut down the least important load that

is connected to the UPS. The UPS should

switch back to normal operation once the

load level is acceptable.

Battery test failed Your batteries are detected to be faulty.

Batteries should be replaced and you need

to contact the local ofﬁce or representative

of the UPS manufacturer.

Battery low

The UPS is operating in stored energy

mode. It will shut down soon due to low

battery voltage.

Make controlled shutdown of the protected

load immediately to prevent loss of data.

On battery

The UPS is operating in stored energy

mode.

Save your data and perform a controlled

shutdown of your server load.

Overtemperature High UPS temperature is detected.

Check that fans are operational and ventila-

tion holes are not blocked. Make sure the

ambient temperature is not excessive

Maintentenance Interval

Batteries change ~ 3-5 years / service

Batteries test ~ 18 months / service

Cooling fan change ~ 5 years / service

UPS 8 – 15 kVA, 230V 50/60 Hz output

User’s Guide

1022403

Revision D

Note!

Do not dispose of batteries in a ﬁre. The batteries may explode.

Do not open or mutilate batteries. Released electrolyte is harmful to the skin and

eyes. It may be toxic.

CAUTION

RISK OF EXPLOSION IF BATTERY IS REPLACED

BY AN INCORRECTED TYPE.

DISPOSE OF USED BATTERIES ACCORDING

TO THE INSTRUCTIONS

Cooling fan

The cooling fan lifespan of the UPS unit is about 60 000 operating hours. The actual lifespan

depends on the environment and ambient temperature.

Fan failure can be predicted by increasing noise from the fan bearings. The fan replacement is

recommended once this symptom starts appearing.

Do not use other than manufacturer’s speciﬁed spare parts.

LED Indicators

The UPS unit has (4) LEDs to indicate the status.

Table 38. Description of the LED indicators.

Maintenance bypass switch (MBS) operation

The maintenance bypass switch may be as standard or as optional in your system depending

on the ordered conﬁguration. The operation of the MBS is allowed for a trained person only

who is familiar with the UPS behaviour and functions. The full UPS wiring diagram with a MBS

switch is presented in the installation part of the manual.

Note!

The MBS consist of three switches and failure to understand the correct sequence

may drop the critical load.

Graphical sign LED Description Note

Green UPS status is ok.

Blinking when a new notice message is

active.

Yellow 1 UPS is in battery mode

Yellow 2 UPS is in bypass mode

Red UPS has an active alarm

Blinking when new alarm is not reset and still

active.

UPS 8 – 15 kVA, 230V 50/60 Hz output

User’s Guide

1022403

Revision D

Figure 39. The normal positions of the three MBS switches.

Turn UPS from normal mode to mechanical bypass

The procedure to turn the UPS to mechanical bypass switch is described below.

Figure 40. The normal (UPS supplying the load) positions of the three MBS switches.

No break transfer from normal mode to Service Bypass:

1. The normal start position should be following:

2. Use LCD to turn the UPS on internal static bypass mode. Remember to verify the transfer

before proceeding the next step.

3. Remove the locking plate of the S1-3 switches.

4. Turn ON the S1 switch to bypass UPS:

5. Turn OFF the S3 switch to disconnect UPS output:

6. Use LCD to turn UPS OFF.

7. Turn

F1 battery breakers and F2 input to OFF position.