Operations
58 Modular UPS 25KVA~900KVA User Manual
5.2.2 Switching the UPS from Normal Mode into Bypass Mode
Two ways to transfer the UPS into Bypass mode from Normal mode
：
(a)
Enter the menu Operate, touch the icon “transfer to bypass”
and the
system transfers to bypass mode ;
(b)
Press and hold the
BYP
key on the operator control panel for longer than two
seconds and the system transfers to bypass mode. This needs to enable the switch
behind the front door. See Fig.5-3.
Enable
the
switch
A
Zoom
in
A
area
Fig.5-3 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 from Normal Mode into Maintenance Bypass 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 (for
6-slot and 10-slot cabinet) and monitoring, static bypass unit (for 20-slot cabinet).
1.
Transfer the UPS into Bypass mode following section 5.2.2.
