3
24V 24W Power Supply
PS-242
! ATTENTION
This user manual contains information necessary for the safe and correct operation
of the device. Before mounting the device, please read this user manual carefully and
pay attention to warnings.
Safety and Warnings
! ATTENTION
Do not open the device under any circumstances. An opened device’s
warranty will become void.
! ATTENTION
The device must be mounted only by qualified personnel with
necessary precautions against electric shock in place. Incorrect connection may
create dangerous result for people and environment.
Incorrect connection may result in permanent damage to the performance of the
device.
! ATTENTION
The device warm up during operating.
• Before you energize the device or remove the device from mains, make sure that
the supply cable isn’t connected to mains.
• Supply input of the device must be connected according to EN60950 standards.
! A supply voltage greater than 265V AC may result in an explosion in the device
or in damages to the user.
• Device supply must be at a sufficient power capacity and must comply with
security standards.
• Cables connected to the outputs of PS-242 must be suitable for the maximum
current that PS-242 can provide.
• After device connection is finished, connection points must be protected against
accidental contacts.
• Mounting of the device must be done vertically as shown in Figure-1, with AC
supply input at the bottom side and the DC output at the top side.
• The device must be properly ventilated.
1- Introduction
1.1 Applications :
PS-242 is a 24W switching mode power supply used in industrial and civil areas. It is
designed according to DIN box standards for ease of mounting on panels.
1.2 General Features :
• Wide input voltage range 85-265V AC (50-60 Hz) / 110-350V DC
• 24 VDC 1 ADC 24 W output power
• Status notification LED (green)
• High efficiency device
• Short circuit, overload protection
• Thermal protection
• Class 2 device, no earth connection is necessary
• DIN3 case
• IP20 Protection class
• CE, EN60950,E N61204
1.3 Operation :
In the device shown in Figure 1, parts 1 and 2 are the input voltage connection point
of PS-242, connect the supply to these points.
PS-242 Sections 3 and 4 in Figure 1 are the DC output portion of the PS-242. From
these points, the device gives 24 VDC output. When the PS-242 is powered, the
green LED 5 number in figure will light up. When this led is lit, it indicates that PS-242
is working and producing output voltage.
2- Connection and Mounting
Wire Connection
• AC Input (1,2): Under nominal load, PS-242 draws maximum 0.6AAC and
minimum 0.425A AC. Wire thickness must be selected according to these values.
Maximum 14 AWG stranded wire (2.5 mm
2
) or 12 AWG solid wire
(4 mm
2
) can be connected to the input terminal.
• DC output (3, 4): Output current is 1A DC. Wire thickness must be selected
according to this value. Maximum 14 AWG stranded wire (2.5 mm
2
) or 12 AWG solid
wire (4 mm
2
) can be connected to the output terminal.
• In terms of complying with standards, use copper wires that can operate at 75
o
C.
Mounting (Figure 2)
• PS-242 can be mounted on DIN rails which comply with EN50022 standards.
• Mount the device vertically. When mounting the device, it is recommended that
the DC output side stays on top side.
• Mind the device’s ventilation when mounting the device. After the mounting, it
is recommended to leave a 1 cm space between PS-242 and devices next to it.
Fig
ure -2
3- Device connection and operation
Input (section 1,2)
• The part which are numbered as 1 and 2 shown in Figure-3 are the Line and
Neutral supply inputs of PS-242.
• 85-265 VAC input voltage can be connected by using the L and N terminals.
• 110-350V DC input voltage can be connected by using the L and N terminals.
• The device has a internal fuse.
!
The fuse of the device can only be changed at the factory.
• Extra backup fuse can be connected to the input.
• Appropriate backup fuse must be connected for DC input voltage.
• The device input is protected against low voltage, it is not protected against
high voltage.
Output (section 3,4)
• The part which are numbered as 3 and 4 in Figure-3 are the DC voltage output
of PS-242.
• Positive and negative parts of the output voltage are shown with 3 (+) and 4 (-).
• Output voltage is 24 VDC.
• Device output is protected against short circuit.
• When the output is shorted circuited, device turns off completely and turns on
again after the short circuit condition is resolved.
• The device can operate up to an ambient temperature of +55 °C.
PS-242 has LED indicator (section 5 in Figure-1)
• When there’s no energy : LED is off.
• Normal operation mode : LED is on.
• Short circuit : LED is off.
4- Technical Properties:
Input
Nominal input voltage100-240 VAC / 130-320 VDC
Input voltage range
85-265 VAC / 110-350 VDC
Frequency
45-65 Hz / 0 Hz
Generated current (@24W)
0.25-0.6 AAC (±10%)
Starting current
<15 A
Internal fuse
2.5 A
Estimated opening time after
nominal voltage is supplied
<1 s (@220V AC - 24W)
Mains bufftering
>20 ms (@220V AC - 24W)
Transient surge
Voltage protection
Varistor
Line ragulation
<1%
Figure-1