Apc DP300E User Manual download pdf (Page 12)

12 User Guide Silcon DP300E Series 480V 120-160kVA

7OA0003 US rev. 03

DP300E

Q010a

Q001a

Q002a

Q004

Q010b

Q001b Q002b

Utility 1

Q003

Service bypass switch

H003

Load

Utility 2

H004

H002b

H002a

H010a

H010b

Single Utility

Dual Utility

2.7.2 Switching the parallel system from external bypass into normal

UPS operation

Action

1. Check that the output switch (Q004) is in

position “0”

2. Check that all output switches (Q002) are

in position “1”

3. Turn input switches (Q001) to position “1”

4. On systems with dual utility, turn bypass

input switches (Q010) to position “1”

5. Wait 10 sec. Open the UPS front door and press

the green “ON” push-button on all systems

6. Press

on the keyboard

7. Press or on the keyboard until

8. Press on the keyboard

9. Press

on the keyboard

All systems will transfer to bypass operation

NOTE:

if Q002‘s are off “0“ only programmed systems

goes to bypass H002 & H004 lights

10. Turn the output switch (Q004) to position “1” The green lamp (H003)

above the bypass switch

also lights.

11. Turn the bypass switch (Q003) to position “0” The green lamps (H002) and

(H004) do not light any longer,

but (H003) will light until

normal operation.

Display shows

Lamp indication

on bypass panel

Stop, Start & Operating the External Service Bypass Panel

NOTE:

If battery has been discon-

nected please refer to

“Starting Up” in Chapter 2.5.1 to

connect battery(-ies) again.

**System OFF**

Normal operation

load power 0%

Bypass operation

: NO

Bypass operation

: YES

Bypass operation

DP300E

Q003

Service

bypass

switch

H003

Q001a

Q001b

Q002b

Q004

Q002a

LoadUtility

H004

H002aH002b

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Apc DP300E User Manual Page 12

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