User manual

UB10.241
U–Series
24V, 10A, DC-UPS
Apr. 2007 / Rev. 1.1 DS-UB10.241-EN
All parameters are specified at an input voltage of 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time
unless otherwise noted. It is assumed that the input power source can deliver a sufficient output current.
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13. RELAY CONTACTS AND INHIBIT INPUT
The DC-UPS is equipped with relay contacts and signal inputs for remote monitoring and controlling of the unit.
Relay contacts:
Ready: Contact is closed when battery is charged more than 85%, no wiring failure are recognized, input
voltage is sufficient and inhibit signal is not active.
Buffering: Contact is closed when unit is buffering.
Replace Battery: Contact is closed when the unit is powered from the input and the battery quality test (SOH test)
reports a negative result.
Relay contact ratings max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A resistive load
min 1mA at 5Vdc min.
Isolation voltage max 500Vac, signal port to power port
Signal input:
Inhibit: The inhibit input disables buffering. In normal mode, a static signal is
required. In buffer mode, a pulse with a minimum length of 250ms is
required to stop buffering. The inhibit is stored and can be reset by
cycling the input voltage. See also section 27.1 for application hints.
Signal voltage max. 35Vdc
Signal current max. 6mA, current limited
Inhibit threshold min. 6Vdc, buffering is disabled above this threshold level
max. 10Vdc
Isolation nom. 500Vac, signal port to power port
7 +
5,1V
3mA
Inhibit
8 -