All parameters are specified at 24V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM044A-EN-P — March 2014
7
Bulletin 1606 Switched Mode Power Supplies
6. Output
Output voltage
nom.
24V
Adjustment range
min.
24-28V
guaranteed
max.
30V
***)
at clockwise end position of potentiometer
Factory setting
typ.
24.1V
±0.2%, at full load, cold unit
Line regulation
max.
10mV
60-300Vac
Load regulation
max.
100mV
static value, 0A 10A
Ripple and noise voltage
max.
50mVpp
20Hz to 20MHz, 50Ohm
Output current
nom.
10A
continuously available at 24V, see Fig. 6-1
nom.
9A
continuously available at 28V, see Fig. 6-1
nom. 15A
*)
short
term
available
BonusPower
*)
,
at 24V, for typical 4s, see Fig. 6-1
nom. 13.5A
*)
short
term
available
BonusPower
*)
,
at 28V, for typical 4s, see Fig. 6-1
Output power
nom.
240W / 252W
continuously available at 24V / 28V
nom.
360W / 378W
*)
short
term
available
BonusPower
*)
at 24V / 28V
BonusPower
®
time
typ.
4s
duration until the output voltage dips, see Fig. 6-2
min.
3s
max.
5s
BonusPower
®
recovery time
typ.
7s
overload free time to reset power manager, see Fig. 6-3
Overload behaviour
cont. current
Short-circuit current
min.
8A
**)
continuous, load impedance 100mOhm, see Fig. 6-1
max.
12.5A
**)
continuous, load impedance 100mOhm, see Fig. 6-1
min.
21A
**)
during
BonusPower
*)
, load impedance 100mOhm
max.
27A
**)
during
BonusPower
*)
, load impedance 100mOhm
max.
15A
**)
continuous, load impedance <10mOhm, see Fig. 6-1
Output capacitance
typ.
7 000μF
included inside the power supply
*)
BonusPower, short term power capability (up to typ. 4s)
The power supply is designed to support loads with a higher short-term power requirement without damage or shutdown. The short-
term duration is hardware controlled by an output power manager. BonusPower is repeatedly available. Detailed information
can be found in section 23.1. If the power supply is loaded longer with the BonusPower than shown in the Bonus-time diagram (see
Fig. 6-2), the max. output power is automatically reduced to 240/252W.
**) Discharge
current
of
output capacitors is not included.
***)
This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. There is no
guarantee this value can be achieved. The typical value is about 28.6V.
Peak current capability (up to several milliseconds)
The power supply can deliver a peak current which is higher than the specified short term current. This helps to start
current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be
discharged and causes a voltage dip on the output. Detailed curves are provided in section 23.2.
Peak current voltage dips
typ.
from 24V to 20.5V
at 20A for 50ms, resistive load
typ.
from 24V to 18V
at 50A for 2ms, resistive load
typ.
from 24V to 14V
at 50A for 5ms, resistive load