Emerson 50 and 60 Hz, 400V, 30-200kVA Input Dry Contacts, X3 Ancillary Control and Alarms

Single Module UPS Installation

1.8Dry Contacts

The UPS provides input dry contacts and output dry contacts.

1.8.1Input Dry Contacts

There are several input dry contacts at the X3 slot.

X3 Ancillary Control and Alarms

X3 IN DRY: Environmental, Battery Ground Fault and Generator Contacts

The UPS accepts external signalling from voltage-free (dry) contacts connected to finger-proof, push- in terminal X3 IN DRY. Subject to prior software programming, the signalling is accepted by the UPS when connection between the relevant terminal and the +12V terminal is altered. Cables connected to X3 IN DRY must be segregated from power circuits (for screening purposes), double insulated and of a typical 0.5 to 1mm2 cross-section area for maximum runs between 25 and 50 meters (82-164 ft), respectively.

Figure 3 Input dry contacts

12V

X3

J4

12V GEN BtG ENV

J26

GND 12V AUX_I T_IT

J30

AUX_O T_OT F_FAN FUSE

12V 12V

12V

J10

OL GND FB DRV

Table 3 Input dry contacts at X3

Position	Name	Description
J4.1	ENV3	Battery Room Alarm (NC)
J4.2	BtG	Battery Ground Fault Detection (NC)
J4.3	GEN1,2	On Generator (NO)
J4.4	+12V	+12V Power

1 - Must be configured by configuration software before becoming active.

2 - When activated, the charger current can be limited, via software, to a percentage of the full charger current (0-100%). 3 - Activating this feature turns the battery charger off.

NOTE

All auxiliary cables of terminal must be double-insulated. Wire should be 0.5-1.5mm2(16-20AWG) stranded for maximum runs between 25 and 50m (82-164 ft.) respectively.

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