UPS5000-E-(360 kVA-480 kVA)
User Manual (40 kVA Power Modules)
5 Operations
Issue 07 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
188
Figure 5-56
Connecting signal cables in the reused scenario
5.3.4 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.
Figure 5-57
ATS scenario
In ATS scenarios, the default parameter settings are used.
Working mode
can be set based on
the site requirements.
Connect the DO_4 dry contact port on the UPS monitoring interface card to the
startup/shutdown control port on the D.G. The initial status of the DO_4 dry contact is
normally open (NO). When it is closed, the D.G. starts.
connection between the UPS and the D.G.
The D.G. RUN port of the ATS connects to the dry contact card, as shown in