APC 20 - 200 KVA Start-up, System start-up, Parallel UPS unit for increased output, 20 200 kVA

Start-up

System start-up

Single-UPS unit or redundant parallel UPS or UPS in "ECO" mode

See figure 20.

Proceed in the following order:

◗close the upstream switches supplying normal and bypass AC source power (on the LV switchboard);

◗close normal AC input switch Q1. The system powers up:

◗the rectifier/charger automatically starts,

◗green light 1 on the control panel goes on,

◗light 2 turns red;

◗close bypass AC input switch Q4S:

◗green lights 3 and 5 on the control panel go on;

◗close inverter output switch Q5N;

◗close battery circuit breaker QF1;

◗light 2 goes off;

◗open maintenance bypass switch Q3BP;

◗press the "inverter on" button 8 on the control panel:

◗the green "inverter" light 4 flashes,

◗the inverter starts, then, if the bypass AC source transfer conditions are satisfied, the load is transferred to the inverter if the on-line mode is selected, or the load remains on the static bypass if the "ECO" mode is selected,

◗the green "static-bypass" light 3 goes off,

◗the green "inverter" light 4 shines for on-line mode or flashes for "ECO" mode.

		Q1	Q4S		Q3BP		Q5N
1	0	1	0	1	0	1	0	1
2	0	1	0	1	0	1	0	1
3	0	1	0	1	0	1	0	1

QF1
4
0	I

5 0 1 0 1 0 1 0 1

6

20 - 200 kVA

Fig. 20

Parallel UPS unit for increased output

See figure 21.

Proceed in the following order:

◗check that all load devices are off or that the load is disconnected;

◗close the upstream switch supplying normal AC source power (on the LV switchboard);

◗close the normal AC input switches Q1 on the UPS units. The system powers up:

◗the rectifier/chargers automatically start,

◗the green "rectifier/charger" lights 1 in the control panels go on,

◗lights 2 turn red;

◗close the battery circuit breakers QF1;

◗lights 2 go off;

◗close Mains 2 input switch Q4S in the external bypass unit:

◗green lights 3 and 5 on the control panels go on;

◗close output switches Q5N for the inverters and in the external bypass unit;

◗open maintenance bypass switch Q3BP in the external bypass unit;

◗press the "inverter on" button 8 on each control panel:

◗the green "inverter" lights 4 flash;

◗when a sufficient number of inverters are ready, the inverter-output contactors close:

◗the green "inverter" lights 4 shine permanently green;

◗the "static-bypass" lights 3 go off.

		Q1	Q5N
1	0	1	0	1

QF1

2		I
Q1	0		Q5N

3 0 1 0 1

4

20 - 200 kVA

Fig. 21

Single-converter unit or redundant parallel converter unit

See figure 21.

Proceed in the following order:

◗close the upstream switch supplying normal AC source power (on the LV switchboard);

◗close normal AC input switch Q1. The system powers up:

◗the rectifier/charger automatically starts,

◗green light 1 on the control panel goes on;

◗close battery circuit breaker QF1;

◗close inverter output switch Q5N;

◗press the "inverter on" button 8 on the control panel:

◗the green "inverter" light 4 flashes,

◗the inverter starts up, then connects. The load is then supplied by the inverter,

◗the green light 4 shines permanently, and light 5 turns green.

Note:

Each time a device is switched on, a lamp test is run: all the lights turn orange for roughly 1 second. The message "autotest OK" is displayed until the first primary message is sent.

E-51028230XT/BG - 17