socomec MASTERYS EM Installation And Operating Manual page 11

Q2-Q4, Q3, Q5 switches
Switch in position 0 (OFF)
Switch Position
0
Q4
1
(2)
Q3 0
Q5 (3) 0
Q3 0
Q5 1
Q3 1
Q5 0
(1) WARNING! In this confi guration the mains power supply to the rectifi er cannot be isolated inside the UPS, only via external
protection devices.
(2) Connects the UPS output to the inverter (continuous power supply).
(3) Connects the output directly to the auxiliary mains input (manual bypass).
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ACDC-DCDC
Description
OFF (maintenance operations) (1)
ON (normal operating conditions)
OFF
MANUAL BYPASS
Normal operating
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SYSTEME
Switch in position 1 (ON)
Function
The switch provides the power supply to the automatic bypass line.
This completely isolates the UPS output by removing the voltage
from the applications in any operating conditions.
It is used for the emergency shutdown of the system (internal ESD).
This position should only be selected for routine or special mainte-
nance operations (manual bypass); the load is connected directly to
the auxiliary mains.
It may be used in the event of a UPS failure to power applications
from the auxiliary mains while awaiting the intervention of technical
personnel.
This is the position for normal operation of the UPS for a continuous
power supply to the load.
CPSS Emergency MASTERYS EM 10 to 80 kVA - Ref.: IOMMASELXX03-GB 00
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CONTACT
YOUR CONNECTION TO SAFETY
4. OVERVIEW
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