Technical data, mounting, wiring
PS1111-2403-0002
13
Version: 1.0
3.4
Output
The output provides an SELV/PELV nominal voltage that is electrically isolated from the input voltage.
The output is designed to supply any type of load, including capacitive and inductive loads. Capacitive loads
should not exceed 5500µF with 3.8A or 7000µF with 1.9A additional current load.
In the event of severe overload (if the output voltage drops below 14V) the power supply delivers a
continuous output current for 20ms. The output is then switched off for approx. 160ms before a new start
attempt is automatically made. This cycle is repeated as long as the overload exists. The device starts
operating normally again once the overload has been rectified.
Output voltage
Nom.
24V
Adjustment range
Min.
24-28V
Guaranteed value
Max.
29.0V
This is the maximum output voltage that can occur in the end position of the po-
tentiometer in clockwise direction due to tolerances. It is not a guaranteed
value that can be achieved.
Factory settings
Typ.
24.1V
±0.2%, at full load (cold device)
Line regulation
Max.
10mV
Between 90 and 300Vac
Load regulation
Max.
100mV
Between 0 and 3.8A, static value, see Fig.
Output voltage over output current,
typ.
Residual ripple and ripple
voltage
Max.
100mV
ss
Bandwidth 20 Hz to 20 MHz, 50 Ohm
Output current
Nom.
3.8A
At 24 V and ambient temperature below 60°C
Nom.
3.2A
At 24V and 70°C ambient temperature.
Nom.
2.8A
At 28 V and ambient temperature below 60°C
Nom.
2.4A
At 28 V and 70°C ambient temperature
Overload protection
Yes
Electronic protection against open circuit, overload, and short circuit. In the
event of a protection event, audible noises may occur.
Overload characteristics
Continuous cur-
rent
Output voltage > 14Vdc, see Fig.
Output voltage over output current, typ.
Hiccup mode
Output voltage < 14Vdc, see Fig.
Output voltage over output current, typ.
Overload/short circuit cur-
rent
Max.
6.7A
Continuous current, see Fig.
Output voltage over output current, typ.
Typ.
8.6A
Intermittent current peak value for typ. 20ms
Load impedance 150mOhm, see Fig.
Short circuit at the output
The discharge current of the output capacitors is not included
Max.
3.2A
intermittent mean current value (rms.)
Load impedance 150mOhm, see Fig.
Short circuit at the output
Output capacity
Typ.
1600μF
Included in the power supply
Load feedback
Max.
35 V
The device is resistant and does not show any malfunction when a load feeds
back voltage to the power supply. It does not matter whether the power supply
is switched on or off. The absorbed energy can be calculated by means of the
built-in large-size output capacitor.
Fig. 5: Output voltage over output current, typ.; short circuit at the output.
