Kohler PowerWAVE 8000DPA RI (S2) Series, Руководство пользователя, Страница: 66 / 88

5: Operation
58
TS_616_08 PW8000DPA ST (S2) User Manual 21/4/22
5.2 How to start the UPS system from a fully powered-down condition
Initial conditions:
This procedure assumes the following initial conditions for each UPS cabinet:
• The UPS maintenance bypass switch is open.
• The UPS system output isolator on the external output distribution panel is open.
• The UPS input/bypass supply fuses or (breakers) are open (
OFF
) at the incoming mains switchboard(s).
• The battery fuses (F4-x) are open (
OFF
).
Power-up the load:
1. Turn ON the UPS system input/bypass mains supply at the incoming mains
switchboard(s).
a) Power is now applied to the UPS modules, but they are turned OFF.
2. On the module control panel (of ALL modules) verify that:
a) The
LINE 1
LED is green.
b) The
BATTERY
LED is flashing red.
c) All other mimic LEDs are OFF
d) The LCD displays
LOAD OFF, SUPPLY FAILURE
.
If necessary press the
RESET
button to obtain this display.
3. Close the external UPS system output isolation device on the external output distribution panel.
4. Close the UPS maintenance bypass switch
(see the IMPORTANT NOTE above)
.
5. Turn on power to the load equipment by closing the individual load isolation devices at the output distribution panel.
a) The load is now powered through the maintenance bypass.
b) The module control panel mimic indications do not change.
c) The LCD displays
MANUAL BYP IS CLOSED
.
6. Press the
RESET
button.
a) The LCD displays
LOAD OFF, SUPPLY FAILURE
.
IMPORTANT NOTE
In the following procedures, all references to the ‘Maintenance Bypass Switch’ apply to the internal maintenance
bypass switch (IA1) unless the system is connected to an external maintenance bypass facility.
If an external maintenance bypass facility is installed all references to the ‘Maintenance Bypass Switch’ apply to the
maintenance bypass switch in the external facility.
Key Point:
To reduce the possible effects of high inrush currents that might occur when turning on large loads,
we recommend that you initially power-up the load when the UPS system is operating on the maintenance
bypass then transfer it to the UPS inverter(s), as described in this procedure.
CAUTION: You should familiarise yourself with the operation of the external maintenance bypass circuit
operation before using this procedure.
LINE 1
LINE 2 BY PASS
INVERTER
BATTERY
LOAD