Eaton Alarm relay Card. UPS monitoring networking card

Alarm relay Card. UPS monitoring, six output relays. The relay card may be used in all UPSs equipped with UPS BUS communications slots or in a MultiSlot module.
The card:
◗ Controls six output relays depending on the operating status of the UPS.
◗ Receives signals on the two SELV inputs (this function is available only in programmable mode).

There are three operating modes:
◗ Standard mode: the relays are controlled when the UPS changes a status condition. The following information is transmitted:
◗ relay 1 : General alarm,
◗ relay 2 : Battery fault,
◗ relay 3 : Load protected,
◗ relay 4 : Load on automatic bypass,
◗ relay 5 : Load on battery power,
◗ relay 6 : Low-battery warning.

◗ Programmable mode: relays 1 to 6 are controlled directly by the UPS and all changes of state on inputs A and B are transmitted to the UPS. In this mode, the control logic for the output relays and management of the inputs is integrated in the UPS (see the UPS user manual).

◗ Load-shedding mode: relays 1 to 6 are controlled during operation on battery power. The load-shedding sequence is the
following:
◗ load transferred to battery power => relays 4, 5 and 6 are opened,
◗ low-battery warning issued => relays 1, 2 and 3 are opened,
◗ return of AC-input power => relays 1 to 6 are closed, with a 2-second delay between each closing order.