Start-up

System start-up

Single-unit or modular UPS

Proceed in the following order:

close the upstream switches supplying Mains 1 and 2 power (on the LV switchboard);

close Mains 1 input switch Q1.

The system powers up:

Q1 Q4S Q3BP Q5N

OFF

ON

OFF

ON

OFF

(0)

(I)

(0)

(I)

(0)

 

 

 

red "load not protected" light 2 on the control panel goes on,

the rectifier/chargers automatically starts;

close Mains 2 input Q4S:

Q1 Q4S Q3BP Q5N

ON

OFF

ON

ON

OFF

 

 

(I)

(0)

(I)

(I)

(0)

 

 

 

close inverter output switch Q5N:

Q1 Q4S Q3BP Q5N

ON

ON

ON

OFF

ON

(I)

(I)

(I)

(0)

(I)

 

 

 

close battery circuit breaker QF1:

QF1

OFF

ON

(0)

(I)

open maintenance bypass switch Q3BP:

Q1 Q4S Q3BP Q5N

ON

ON

ON OFF

ON

(I)

(I)

(I)

(0)

(I)

 

 

 

press the inverter on button 6 on the control panel:

!

!

+ –

I

O

 

 

 

 

6

 

green "load protected" light 5 blinks for 3 seconds,

the inverter starts and if transfer to

Mains 2 conditions are correct, the load is supplied by the inverter,

red "load not protected" light 2 goes off,

green "load protected" light 5 remains on, without blinking.

Multi-bypass modular UPS

Proceed in the following order:

check that switches Q1, Q4S, Q5N and QF1 on the UPSs are open and that switches Q3BP are closed, otherwise set them to the required position;

close the upstream switches (on the low-voltage switchboard) supplying power to the Mains 1 and Mains 2 inputs on the UPSs, the load is supplied with power;

close the Mains 1 input switch Q1 on the UPSs to supply them with power:

Q1 Q4S Q3BP Q5N

OFF

ON

OFF

ON

OFF

(0)

(I)

(0)

(I)

(0)

 

 

 

red "load not protected" light 2 on the control panels of the UPSs goes on:

!

!

+ –

I

O

 

 

 

 

2

the rectifier/chargers automatically start;

close the Mains 2 input switch Q4S on the UPSs:

Q1 Q4S Q3BP Q5N

ON

OFF

ON

ON

OFF

(I)

(0)

(I)

(I)

(0)

 

 

 

close inverter output switch Q5N on the UPSs:

Q1

Q4S

Q3BP

Q5N

ON

ON

ON

OFF

ON

(I)

(I)

(I)

(0)

(I)

 

 

 

close battery circuit breaker QF1 on the UPSs:

QF1

OFF

ON

(0)

(I)

open maintenance bypass switch Q3BP on the UPSs:

Q1 Q4S Q3BP Q5N

ON

ON

ON OFF

ON

(I)

(I)

(I)

(0)

(I)

 

 

 

the load is now supplied by the Mains 2 input via the static switches of the UPSs.

press the "inverter on" button 6 on the control panel of each UPSs:

!

!

+ –

I

O

 

 

 

 

6

 

green "load protected" light 5 flashes for three seconds,

the inverter starts and, if transfer conditions with the Mains 2 input are correct, the load is transferred to the inverter,

red "load not protected" light 2 goes off,

green "load protected" light 5 on the control panel goes on.

Page 20 - 6739380EN/JC

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Image 20
APC 6739380EN/JC user manual Start-up, System start-up, Single-unit or modular UPS, Multi-bypass modular UPS