User manual

UF20.241
–
U-Series
24V, 20A, 200ms
Dec 2005 / Rev. 1.2 / DS-UF20.241-EN / All parameters are specified at 24V, 20A and 25°C ambient unless otherwise noted.
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5. STANDBY MODE
Input voltage
nom. DC 24V
Voltage range
nom. 24-28.8Vdc
Input current
typ. 80mA Standby mode
Power dissipation typ. 1.9W
Status lamp permanent on
Active signal high ohmic
Ready signal
low ohmic
6. CHARGING MODE
Charging current
min. 0.4A Charging mode
max. 0.6A Charging mode
Charging time
min. 20s / 15s
Initial charge
1)
/ Re-charging
2)
max. 29s / 21s
Initial charge
1)
/ Re-charging
2)
Status lamp flashes 1.25Hz
Active signal high ohmic
Ready signal
high ohmic
1) Initial charging is the first charge after voltage is applied to the buffer unit.
2) Re-charging is the charging of the internal capacitors after voltage interruptions shorter than 2minutes.
Fig. 6-1 Re-charging time, 24V
Charge
20
0 5 10 30s
Charging Time
40
80
60
100%
15 20 25
m
a
x
m
i
n