UPS-RELAYCARD connection and operation

The UPS-RELAYCARD device allows to activate relay outputs according to events occurring to the UPS.

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The connection will always be between the common and the PIN corresponding to the desired event and this will provide a voltage free contact

• UPS on - UPS on
• AC fail - UPS power failure
• Batt low - Battery low
• UPS alarm - Low voltage, UPS overloaded
• Bypass altive - Power passes through the UPS without any type of regulation
• UPS fail - Disconnection of the EPO terminal, located at the rear of the UPS

Thus, if you want to know when the UPS power is lost, you have to use PIN 1 (Common) and one of PIN 3 or 4 (AC fail), depending on whether you prefer NO or NC contact. If PINs 1 and 3 are used, the contact will be kept open and, when the UPS loses power, this contact will be closed giving continuity

The same happens with Battery low, PIN 1 will be used together with PIN 5 or 6