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6
8. System Operation
Do not operate the “SW2” switch unless the UPS is in BYPASS mode! Failure to follow the operating instructions for this equipment
could result in equipment damage, fire, severe injury or death!
N
O
F
F
O
N
O
ON
O
I
ON
I
OFF
OFF
OFF
ON
O
N
O
F
F
O
I
O
OFF
Normal Operation
The “SW1” Switch is closed/on. The “SW2” Switch is Open/Off. The “SW3”
Switch is closed/on.
Transfer to Maintenance Bypass
1. Transfer the UPS to the Bypass mode before proceeding.
2. Close/turn on the “SW2” switch.
3. Open/turn off the “SW3” switch.
4. The UPS is now ready for routine maintenance.
5. If further maintenance requires a total shutdown of the UPS and isolation
from the input, the “SW1” switch must be opened/turned off and the
battery supply to the UPS must be disconnected. Refer to your UPS
manual for proper shutdown procedures.
Return to Normal Operation
1. If the “SW1” switch was opened/turned off for maintenance, then follow the UPS manual for proper startup procedures. To restore input
power to the UPS, close/turn on the “SW1” switch. Make sure the UPS is in Bypass mode before proceeding.
2. Close/Turn-On the “SW3” switch.
3. Open/Turn-Off “SW2” switch.
4. Transfer the UPS from Bypass mode to Normal mode.
Note:
To use Bypass position contacts, refer to your UPS system’s owner’s manual for connection instructions.
SW1
SW1
SW1
SW1
SW2
SW2
SUT40KMBP
SUT60KMBP
SW2
SW2
SUT40KMBP
SUT60KMBP
POSITION 1 - NORMAL OPERATION
POSITION 1 - NORMAL OPERATION
POSITION 2 - IN EXTERNAL BYPASS
POSITION 2 - IN EXTERNAL BYPASS
SW3
SW3
SW3
SW3
Содержание SUT40KMBP
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