APC 10-40kW 208/480V Installation Guide download pdf (Page 48)

48 Installation Guide Silcon DP300E 208V/480V 10-80 kVA

7OY0002 US rev. 04

Switching off

WARNING:

Batteries out of service could

be damaged if not recharged

every 3rd month.

7.0 Switching off

7.1 Switching off Silcon DP310E-DP380E

1. Prepare the system by opening the front door(s).

2. Continue with the next point (3) and observe that this next step will interrupt the

system output voltage!!!

Display shows

3. Press the red “OFF“ push-button.

The acoustic alarm sounds for 30 sec.*

4. Switch off the mains power supply

The red alarm LED below the display ligths.

The acoustic alarm sounds for 30 sec.

5. a) Systems with built-in batteries (only possible for

Silcon DP310E/DP340E). Open F020 and F021.

b) Systems with external batteries.

Switch off battery MCCB’s in MCCB box or battery

cubicle.

Please refer to LED indication and labeling in MCCB

box or battery cubicle.

The acoustic alarm sounds shortly.

** System OFF **

Blank

** System OFF **

The UPS is now isolated. Maintenance/repair work can take place or the UPS can be

disconnected and removed.

*The acoustic alarm can be reset by the

key.

WARNING:

Internal DC-capacitor may

contain energy even after the

UPS has been switched off.

On account of the automatic

discharging, wait at least 5

minutes after that the UPS has

been switched off until working

on the system is commenced.

WARNING:

This UPS system contains a

special design feature, which

guarantees output voltage in

the form of bypass operation.

This function comes into

operation in case of failure in

internal power supply or in

controller circuit.

Even if the UPS system is

assumed to be switched off,

there may be voltage at the

UPS output because of the

special bypass feature.

Switching off by pressing the

red “OFF”-button.

TEST BEFORE TOUCHING!

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APC 10-40kW 208/480V Installation Guide Page 48

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