8
Maintenance bypass mode
When the UPS needs to be maintained and the power supply for load cannot be interrupted, user can shut
down the inverter and make the UPS work in bypass status. Switch on the maintenance bypassbreaker and
switch off the mains pint breaker and bypass power supply breaker. while transforming the manual
maintenance bypass, AC power is supplied for load by maintenance bypass breaker. At this time, the inner
UPS has no electricity, personnel can perform the maintenance safely.
2.3 Appearance and structure
2.3.1 Appearance
The appearance of this series UPS is as shown in Figure 2-2.
Operating panel
• HP i 33 40 kVA UPS
Figure 2-3. Operating panel
Figure 2-2. Appearance of 40 kVA(/B) UPS
Shows the running parameters (such as voltage, current,
load, etc.) and status
Name
Illustration
On (green): Rectifier works normally.
On (red): Rectifier abnormal.
On (green): Inverter works normally.
On (red): Inverter abnormal.
Table 2-1. Illustration for the operating panel
No.
Touch screen
Touch screen
Touch screen
1.
2.
3.
On (green): Bypass output.
On (red): Bypass abnormal.
On (red): Battery low-voltage.
On (red): Output overload.
BYP. indicator
BATT. LOW indicator
OVERLOAD indicator
4.
5.
6.
Press the two buttons for 3 sec., the system will power on.
Press the two buttons for 3 sec., the system will power off.
Press the button, the system will power outage immediately.
ON
combination button
OFF
combination button
EPO emergency
power off button
7.
8.
9.
1
8
7
2
3
4
5
6
9
EPO
ON
ON
ON
ON
OFF
OFF
EPO
