44
7.5. Maintenance Bypass Decommissioning Instructions
In order to transfer the loads from Maintenance Bypass to UPS without interruption, do the following
instruction respectively;
1.
Switch the bypass circuit breaker on the UPS
(F4)
to
“ON”
position, after 30s check if fans are
running.
2.
Switch the input circuit breaker on the UPS
(F1)
to
“ON”
position.
3.
Switch the inrush circuit breaker on the UPS
(F6)
to
“ON”
position.
4.
LCD will be ON. See
“M. Bypass Mode”
written on LCD of UPS.
5.
Switch the circuit breakers on the external battery cabinet to
“ON”
position.
6.
Touch Battery icon to see
Battery / DC
menu measurement. Do not close the battery circuit breakers
(F5)
until the difference between DC bus and Battery voltages decreases below 10V.
7.
Switch the output circuit breaker on the UPS
(F2)
to
“ON”
position.
8.
Switch the maintenance bypass circuit breaker on the UPS
(F3)
to
“OFF”
position.
9.
Check on Energy Diagram screen that UPS is in
Eco Mode
operation.
10.
On the display, select
Menu / Command
, enter User password
11.
In page
Priority Mode
, select Online Mode if requested, save and confirm, go back to Energy Flow
Diagram screen.
12.
See
“Online Mode”
written on LCD.
13.
Close the front door of UPS.
7.6. Emergency Switching Device (ESD)
UPS output can be cut off immediately by ESD connection if desired.
7.7. Connection to a Generator
If the input power is
supplied by a generator, set the digital input “GEN ON” high. This ensures generator
friendly operation by smoothing the increment of the current drawn from the generator, during transition
from battery mode to normal mode.
When this is done, “
Generator mode active
”
will be shown in Diagnostics menu. Connection details are given
in the
4.2.2. Communication Interface Connection
When installing external maintenance bypass breaker please make sure that auxiliary contact
information signal cable is connected in parallel to internal maintenance bypass auxiliary
contacts. And please use twisted and shielded cable for this transmission.
ESD switch should be placed where unauthorized people can not reach it. Unauthorized use
may cause the load be deenergized.
Содержание PYRAMID DSP PREMIUM Series
Страница 15: ...9 10 15 20 30kVA Terminal Connections Separate Bypass Terminal Bypass L1 L2 L3 N version is optional...
Страница 16: ...10 40 60kVA Terminal Connections Separate Bypass Terminal Bypass L1 L2 L3 N version is optional...
Страница 17: ...11 80kVA Terminal Connections Separate Bypass Terminal Bypass L1 L2 L3 N version is optional...
Страница 18: ...12 100 120kVA Terminal Connections Separate Bypass Terminal Bypass L1 L2 L3 N version is optional...
Страница 19: ...13 160kVA Terminal Connections Separate Bypass Terminal Bypass L1 L2 L3 N version is optional...
Страница 20: ...14 200 250 300kVA Terminal Connections Separate Bypass Terminal Bypass L1 L2 L3 N version is optional...
Страница 65: ...59 The manufacturer reserves the rights to change the technical specifications and design without notice...