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R&D ā USER MANUAL DT0430-E04
2.7.5. REMOTE MANUAL BY-PASS
The remote Manual By-Pass is a security system that allows, when closed, to connect directly load to the
power line, excluding the UPS.
The remote Manual By-Pass system is composed by a power switch for connect reserve line whit load, and
a N.C. contact (fig. 2.7.5) that opens when commanded.
This contact must be connected to CN1 of CS0098**.
The remote communication card must be configured as described in fig. 2.7.5
If there are no remote by-pass to the system jumper JP1 must be closed. (circle in fig.2.7.5)
The default configuration (with any remote by-pass connected) has the connector CN1 shortened with a
wire connection.
**If is required to enable the EPO remote on the optional communication card is necessary contact the service. During the feeding of loads through external by-
pass is not guaranteed the uninterrupted supply of electric current.
2.7.6. EARTH CONNECTION
The earth input cable must be connected to the earth terminal of the UPS and must be always the first
cable to be connected. It is advisable to insert an appropriate antioxidant between the earth bar and lug to
keep the accurate contact over time.
All of the cabinets and accessories must be earthed in accordance with local regulations.
ATTENTION!
Inadequate earth connection may cause a risk of electrical shock
to personnel or of fire
Fig. 2.7.5
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