NS3000 UPS 60KVA~120KVA User Manual
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Figure 5-1 Enable the switch
Warning
Ensure the bypass is working normally before transferring to bypass mode. Or it may cause
failure.
5.2.3 Switching the UPS into Normal Mode from Bypass Mode
Two ways to transfer the UPS into Normal mode from Bypass Mode:
(a) Enter the menu Operate, touch the icon transfer to inverter
and the system
transfers to bypass mode.
(b) Press and hold the
INV
key on the operator control panel for longer than two seconds
and the system transfers to Normal mode.
Note
Normally, the system will transfer to the Normal mode automatically. This function is used
when the frequency of the bypass is over track and when the system needs to transfer to
Normal mode by manual.
5.2.4 Switching the UPS into Maintenance Bypass Mode from Normal
Mode
These following procedures can transfer the load from the UPS inverter output
to the maintenance bypass supply, which is used for maintaining the bypass
module.
1. Transfer the UPS into Bypass mode following section 5.2.2.
2. Open the battery breaker and close the maintenance bypass. And the load
is powered through maintenance bypass and static bypass.
3. Pull out the bypass module and the load is powered through maintenance
bypass.
Waring
Before making this operation, read messages on LCD display to be sure that bypass supply
is regular and the inverter is synchronous with it, so as not to risk a short interruption in
powering the load.
A
Enable the switch
Zoom in A area
Содержание NS3000 Series
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