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84
DPA 2 50 S 4 50 - 2 50 K W
O P ER AT I N G M A N UA L
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11 Shut-down procedure
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11.1
Complete shut-down procedure
NOTE
PLEASE REFER TO CHAPTER "
5.2.1.4-LED STATUS INDICATORS
"
FFOR THE MEANING OF THE LED
INDICATORS, COLOURS AND BEHAVIOUR
HE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED BY A SERVICE ENGINEER OF THE
MANUFACTURER OR BY AN AGENT CERTIFIED BY THE MANUFACTURER
The UPS may be shut down completely, if the load does not need input power for an extended period of
time.
It may be switched to maintenance BYPASS MODE for service or maintenance purposes or transferred
to the OFF-LINE mode (ECO-mode) if the load does not need the highest degree of protection.
Only if there is no need to supply the load, the
UPS system can be completely shut down.
The following procedures can only be executed
after the load connected to the UPS has com-
pletely been de-energized!
1. Verify that the loads are completely shut
down and that there is no need for power
supply to the load.
2. Load OFF all modules by means of the ON/
OFF buttons present on their control panels
(Always confirm with “ENTER” when re-
quired).
LED indicators status on all modules
Display on all modules
LED INDICATION
COLOR
SINGLE/DUAL INPUT FEED CONFIGURATION
Rectifier
Green
Bypass
Green
Load
OFF
Battery
Flashing red
3. When all the modules present in the parallel
installation are Loaded-OFF, turn to the OFF
position (open) the Q2 output isolators on all
frames.
LED INDICATION
COLOR
SINGLE/DUAL INPUT FEED CONFIGURATION
Rectifier
Green
Bypass
Green
Load
OFF
Battery
Flashing red