16
User Guide DP300E
7OA0001 GB rev.09
Service Bypass Switch
7.2.2
Switching the parallel system from external bypass into normal
UPS operation
Action
1.
Check that output isolator (Q004) is in
position “0”
2.
Turn input switches (Q001) and output
switches (Q002) to position “1”
3.
Open the UPS front door and press the
green “ON” key on all systems
Point 4-7 can be carried out with any of
the parallel systems, however this will
switch all systems to bypass operation
4.
Press
on the keyboard
5.
Press
or
on the keyboard until
6.
Press
on the keyboard
7.
Press
on the keyboard
All systems will transfer to bypass operation
8.
Check that green lamp (H004) above output
isolator (Q004) lights
9.
Turn the output isolator (Q004) to position “1”
Now also the green lamp
(H003) above the bypass
switch handle (Q003) lights
10. Turn the bypass switch (Q003) to position „0“
Only the green lamp (H003)
above the bypass switch
handle (Q003) lights
Point 11-16 must be carried out with same
UPS as was used for point 4-7
**System OFF**
Normal operation
load power 0%
Display shows
Lamp indication
on bypass panel
Bypass operation
: YES
Bypass operation
: NO
Note:
If battery has been discon-
nected please refer to
“Starting Up” in Instal. Guide
Chapter 5.0 to connect
battery(-ies) again.
Bypass operation
DP300E
DP300E
Q003
Q001a
Q001b
Q002b
Q004
Q002a
Service Bypass Switch
Load
Mains