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Input voltage
Input voltage range
Normal operating input voltage ranges
Transfer voltage for switching into battery mode
in power supply mode
Output voltage
in battery mode
in power supply mode
Ripple and noise voltage
in battery mode
Requirements for the power supply on the input
internal consumption
Input Current
total input current
in power supply mode
Output Current
in battery mode
Nom
DC 24V
-±25%
18...30V DC
Nom
Max
30...35V DC
35V DC
Max
Ranges, where the unit does not switch to battery mode. See
at least 1V higher than buffer voltages settings.
Typ.
23.5...30V DC
25...30V DC
Typ
Typ
26...30V DC
27...30V DC
Typ
Important: The lower end must be at least 1V higher than buffer voltages settings.
23.5V DC
Typ
25V DC
Typ
26V DC
Typ
27V DC
Typ
0.12V less than input
Typ
voltage at 20 A
22.5V DC
Nom
±3%
Nom
24.0V DC
±3%
Nom
25.0V DC
±3%
Nom
26.0V DC
±3%
not applicable
Max
120mVpp
- Use an appropriately sized 24V power supply, which can deliver the additional required internal current
consumption of the DC-UPS and the required current for charging the batteries. See also
page 12
- Use power supplies that do not deliver more than 28 A continuous output current
Typ
80 mA
Max
2.1 A / 4.0 A
Max
2.3 A / 4.3 A
Max
Sum of the output (load) current and the internal current consumption
Nom
25 A
Nom
30 A
Nom
20 A at 22.5V, 18 A at 26V
30 A at 22.5V, 26 A at 26V For typ 4 s (BonusPower
Nom
Typ
80 A
Rockwell Automation Publication 1606-RM008A-EN-P - November 2021
DC-UPS - 24V, 20 A, 480 W Reference Manual
Control functions such as light-emitting diode (LEDs), monitoring features,
relay contacts, etc. are working. The unit can either be in power supply mode
or in battery mode. See
Figure 3 on page
Temporarily allowed, no damage to the DC-UPS. The red error light-emitting
diode (LED) reports "Input Voltage", charging and buffering are not possible.
See
Figure 3 on page
10.
Absolute max voltage with no damage to the unit.
Figure 3 on page
Range A for a 22.5V buffer voltage setting
Range B for a 24V buffer voltage setting
Range C for a 25V buffer voltage setting
Range D for a 26V buffer voltage setting
Range A, 22.5V buffer voltage
Range B, 24V buffer voltage
Range C, 25V buffer voltage
Range D, 26V buffer voltage
The output voltage is always slightly lower than the input voltage,
independent of the value of the input voltage. See
page 12
The buffer voltage is the output voltage in battery mode, selectable in four
steps via rotary switch on the front of the unit and will not change as the
batteries discharge. See
Figure 3 on page
better as the supplying power supply (filter included)
20 Hz to 20 MHz, 50 Ohm
When batteries are fully charged
For <10 Ah / >10 Ah settings; during battery charging,
no temperature sensor installed
For <10 Ah / >10 Ah settings; during battery charging,
temperature sensor is installed
Continuously allowed
For max 5 s
Continuously allowed see
Figure 8 on page 12
22.5V and 26V)
(1)
) see
Figure 7 on page 12
between 22.5V and 26V)
For typ. 25 ms, output voltage stays above 20V, (dynamic peak current), see
Figure 10 on page
12.
10.
10. Please note: The lower end must be
Figure 5
and
Figure 6 on
10.
Figure 7 on
.
1)
(interpolate linearly between
(interpolate linearly
11
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