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start-up
User’s Manual
system start-up
single-UPS unit or redundant parallel UPS
See figure 15.
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 7 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
❏ the green
❏ the green "inverter" light 4 shines for
parallel UPS unit for increased output
See figure 16.
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 circuit break- ers 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;
❏ 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 7 on each control panel:
❏ the green "inverter" lights 4 flash;
■when a sufficient number of inverters are ready, the
❏ the green "inverter" lights 4 shine per- manently green;
❏ the
start-up of a module
start-up of a rectifier/charger
■rectifier/charger
Q1 is closed:
❏the green "rectifier/charger" light 1 on the control panel goes on;
■ close battery circuit breaker QF1.
WARNING Rectifier/charger
start-up of an inverter
When the rectifier/charger is on:
■press the "inverter ON" button 7 on the control panel;
❏ the green "inverter" light 4 flashes.
Single-UPS unit
■the inverter starts, then, if the bypass AC source transfer conditions are satis- fied, the load is transferred to the inverter if the
❏ the green "inverter" light 4 remains on, ❏ the
Parallel UPS unit
| Q1 | Q4S | Q3BP | Q5N |
| Q1 | Q5N | ||||
1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 1 |
0 | 0 |
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2 | 1 |
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| 1 | 2 |
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0 | 0 | 0 | 0 |
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| Q1 | 0 | I | Q5N | |||||
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3 | 1 |
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| 1 | 3 | 1 | 0 | 1 |
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0 | 0 |
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4 |
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5 |
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0 | 0 | 0 | 0 |
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6 |
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■the inverter starts and awaits the start of the other inverters;
■when they are all on or enough have been started to supply the rated load power, the output switch for each running inverter closes and the load is supplied with power:
❏ the green
❏ the green "inverter" light 4 on the con- trol panels of the running inverters goes on.
Fig. 15 | Fig. 16 |
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