UPS5000-E-(40 kVA-320 kVA)
User Manual
5 Operations
Issue 10 (2015-09-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
193
Figure 5-63
Reuse scenario
In reused D.G. scenarios, the following parameters need to be set:
Set
ATS
to
Not connected
.
Working mode
is by default set to
ECO
and is unchangeable.
The dry contact port DO_4 of the UPS monitoring port card connects to the startup/shutdown
control port of the D.G. The DO_4 port is normally on (NO) initially. When it is on, the D.G.
starts.
shows the signal cable connection between the UPS and the D.G. in reused
scenarios.
Figure 5-64
Connecting signal cables in the reused scenario
5.12.4 ATS Scenario
The D.G. and mains connect to the UPS over an ATS. The MDU obtains the D.G.
startup/shutdown status over the dry contact signals sent from the ATS, and controls D.G.
startup/shutdown over dry contacts.