PIM90.241
Feb. 2022 / Rev. 2.0 DS-PIM90.241-EN
www.pulspower.com
6 / 17
All parameters are specified at 24V, 3.8A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
6.
Output
The output provides a SELV/PELV/ES1 rated voltage, which is galvanically isolated from the input voltage. The output is
electronically protected against no-load, overload and short circuit. In case of a protection event, audible noise may occur.
The output is designed to supply any kind of loads, including inductive and capacitive loads. Capacitive loads should not
be larger than 4 000μF with 3.8A or 5 000μF with 1.9A additional resistive load.
At heavy overloads (when output voltage falls below 14V), the device delivers continuous output current for 20ms. After
this, the output is switched off for approx. 160ms before a new start attempt is automatically performed. This cycle is
repeated as long as the overload exists.
If the overload has been cleared, the device will operate normally.
Output voltage
nom.
DC 24V
Adjustment range
24-28V
Guaranteed value
max.
29.5V
This is the maximum output voltage which can occur at
the clockwise end position of the potentiometer due
to tolerances. It is not a guaranteed value which can be
achieved.
Factory settings
typ.
24.1V
±0,2%, at full load, cold unit
Line regulation
max.
10mV
Between 90 and 300Vac
Load regulation
max.
100mV
Between 0 and 3.8A, static value, see Fig. 6-1
Ripple and noise voltage
max.
100mVpp
Bandwidth 20Hz to 20MHz, 50Ohm
Output current
nom.
3.8A
At 24V and an ambient temperature below 60°C
nom.
2.8A
At 24V and 70°C ambient temperature
nom.
3.2A
At 28V and an ambient temperature below 60°C
nom.
2.4A
At 28V and 70°C ambient temperature
Overload protection
Included
Electronically protected against no-load, overload and
short circuit. In case of a protection event, audible noise
may occur.
Overload behaviour
Continuous current
For output voltage above 14Vdc, see Fig. 6-1
Intermittent current
For output voltage below 14Vdc, see Fig. 6-2
max.
6.7A
Continuous current, see Fig. 6-1
Overload/
short-circuit current
typ.
8.6A
Intermitted current peak value for typ. 20ms
Load impedance 150mOhm, see Fig. 6-2
Discharge current of output capacitors is not included.
max.
3.2A
Intermitted current average value (R.M.S.)
Load impedance 150mOhm, see Fig. 6-2
Output capacitance
typ.
1 600
μ
F
Included inside the device
Back-feeding loads
max.
35V
The unit is resistant and does not show malfunctioning
when a load feeds back voltage to the device. It does not
matter whether the device is on or off. The absorbing
energy can be calculated according to the built-in large
sized output capacitor.
Fig. 6-1: Output voltage vs. output current, typ.
Fig. 6-2: Intermittend current at short circuit, typ.
*)
*) with cold devices the times are about 15% longer.
