PULS CP20.481-ETC Din Rail Power Supply Installation Guide
- August 28, 2024
- PULS
Table of Contents
PULS CP20.481-ETC Din Rail Power Supply
Introduction
Read this first!
Before operating this device please read this manual thoroughly and retain this manual for future reference! This device may only be installed and put into operation by qualified personnel. If damage or malfunction should occur during operation, immediately turn power off and send device to the factory for inspection. The device does not contain serviceable parts. The information presented in this document is believed to be accurate and reliable and may change without notice. For any clarifications the English translation will be used.
Risk of electrical shock, fire, personal injury, or death:
- Turn power off before working on the device. Protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- Use caution to prevent any foreign objects from entering the housing.
- Do not use in wet locations or in areas where moisture or condensation can be expected.
- Do not touch during power-on and immediately after power-off. Hot surfaces may cause burns.
Product Description
The CP20.481-ETC is a DIN rail mountable single-phase-input power supply that
provides a floating, stabilized and galvanically separated SELV/PELV output
voltage.
The device provides access to operation data and device settings via a built-
in Ether CAT interface.
See Ether CAT interface description and datasheet for detailed information.
Intended Use
This device is designed for installation in an enclosure and is intended for
commercial use, such as in industrial control, process control, monitoring and
measurement equipment or the like. Do not use this device in equipment where
malfunction may cause severe personal injury or threaten human life.
If this device is used in a manner outside of its specification, the
protection provided by the device may be impaired.
Installation Instructions
Install the device in an enclosure providing protection against electrical,
mechanical and fire hazards.
Install the device onto a DIN rail according to EN 60715 with the input
terminals on the bottom of the device.
Make sure that the wiring is correct by following all local and national
codes. Use appropriate copper cables that are designed for a minimum operating
temperature of +60°C for ambient temperatures up to +45°C, +75°C for ambient
temperatures up to +60°C and +90°C for ambient temperatures up to +70°C.
Ensure that all strands of a stranded wire enter the terminal connection. Use
ferrules for wires on the input terminals. Unused screw terminals should be
securely tightened.
The device is designed for pollution degree 2 areas in controlled
environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The
housing does not provide protection against spilled liquids.
The isolation of the device is designed to withstand impulse voltages of
overvoltage category III according to IEC 60664-1.
The device is designed as “Class of Protection I” equipment according to IEC
61140. Do not use without a proper PE (Protective Earth) connection.
The device is suitable to be supplied from TN, TT or IT mains networks. The
continuous voltage between the input terminals and the PE potential must not
exceed 300Vac.
The input can also be powered from a battery or a similar DC source. The
continuous voltage between the supply voltage and the PE/ground potential must
not exceed 375Vdc.
A disconnecting means shall be provided for the input of the device.
The device is designed for convection cooling and does not require an external
fan. Do not obstruct airflow and do not cover ventilation grid!
The device is designed for altitudes up to 5000m. Above 2000m a reduction in
output current and overvoltage category is required.
Keep the following minimum installation clearances:
| Output power | Installation clearance (mm) |
|---|---|
| related to nominal | top |
| < 50 % | 40 |
| ≥ 50 % | 40 |
| ≥ 90 % | 40 |
The device is designed, tested and approved for branch circuits up to 32A
(IEC) and 30A (UL) without additional protection device. If an external fuse
is utilized, do not use circuit breakers smaller than 10A B- or
C-Characteristic to avoid a nuisance tripping of the circuit breaker.
The maximum surrounding air temperature is +70°C. The operational temperature
is the same as the ambient or surrounding air temperature and is defined 2cm
below the device.
The device is designed to operate in areas between 5% and 95% relative
humidity.
Functional Description
The output is electronically protected against no-load, overload and short
circuit and can supply any kind of loads, including unlimited inductive and
capacitive loads. If capacitors with a capacitance >1F are connected, the unit
might charge the capacitor in an intermittent mode.
Do not apply return voltages from the load to the output higher than 63V.
The output voltage can be adjusted with a small flat-blade screwdriver on the
front of the unit.
The green DC OK LED reports an output above 44V of a running device.
The device is equipped with an over-temperature protection. In case of a high
temperature, the output shuts down and starts automatically again after
cooling off.
At heavy overloads (when output voltage falls below 26V), the device delivers
continuous output current for 2s. After this, the output is switched off for
18s before a new start attempt is automatically performed. This cycle is
repeated as long as the overload exists.
Devices can be paralleled to increase the output power but only if ambient
temperature does not to exceed +60°C. The output voltage of all devices shall
be adjusted to the same value (±100mV) in “Single Use” mode with the same load
conditions on all units, or the units can be left with the factory settings.
After the adjustments, set the unit to “Parallel Use” mode, in order to
achieve load sharing.
The “Parallel Use” mode regulates the output voltage in such a manner that the
voltage at no load is approx. 4% higher than at nominal load. Energize all
units at the same time. It also might be necessary to cycle the input power
(turn-off for at least five seconds), if the output was in overload or short
circuit. If more than three devices are connected in parallel, a diode, fuse
or circuit breaker with a rating of 16A or 20A is required on each output.
Same devices can be connected in series for higher output voltages. It is
allowed to connect as many devices in series as needed, providing the sum of
the output voltage does not exceed 150Vdc.
In case of an internal defect, a redundant circuit limits the maximum output
voltage to 60V. The output switches off and performs three restart attempts.
If the failure continues, the output shuts down. Cycle input power to reset.
Technical data
All values are typical figures specified at 230Vac 50Hz input voltage, 48V 10A output load, +25°C ambient temperature and after a 5 minutes run-in time unless otherwise noted.
| Output voltage | DC 48V | Nominal |
|---|---|---|
| Adjustment range | 48 – 56V | Factory setting 48.0V |
| AC 120 – 240V mains, DC 150-300V | ||
| Output current | 10.0 – 8.6A | Up to +60°C ambient |
| Power Boost | 12.0 – 10.3A | Up to +45°C ambient |
| Derating | linear 12.5W/K | > +60°C ambient |
| AC 100V mains, DC 110-150V | ||
| Output current | 8.75 – 7.4A | Up to +60°C ambient |
| Power Boost | 10.5 – 9.0A | Up to +45°C ambient |
| Derating | linear 10.5W/K | > +60°C ambient |
| Input voltage AC | AC 100-240V | -15%/+10% |
| Mains frequency | 50-60Hz | ±6% |
| Input current AC | 4.26 / 2.23A | At 120 / 230Vac |
| Power factor | 0.99 / 0.98 | At 120 / 230Vac |
| Input voltage DC | DC 110 – 300V | ±20% |
| Input current DC | 4.64 / 1.66A | At 110 / 300Vdc |
| Input inrush current | 10 / 4.5Apeak | At 120 / 230Vac, temp. independent |
| Efficiency | 94.8 / 96.2% | At 120 / 230Vac |
| Power losses | 26.6 / 18.9W | At 120 / 230Vac |
| Hold-up time | 32 / 32ms | At 120 / 230Vac |
| Temperature range | -25 to +70°C | |
| Max. wire size (litz wire) | 4mm² | Power terminals |
| Wire size AWG | AWG 20-10 | Power terminals |
| Max. wire diameter | 2.8mm | Power terminals |
| Wire stripping length | 10mm | Power terminals |
| Communication interface | 2 x RJ45 | Ether CAT interface |
| Transmission medium | Ethernet/Ether CAT min. | CAT 5 |
| Size (wxhxd) | 48x124x127mm | Without DIN rail |
| Weight | 830g |
Front side and terminals
Output characteristic
Temperature range
CUSTOMER SUPPORT
Headquarters: PULS GmbH, Elektrostar. 6, 81925 Munich, Germany
www.pulspower.com
Germany +49 89 9278 0
China +86 512 62881820
France +33 478 668 941
North America +1 630 587 9780
Austria +43 2764 3213
Singapore +65 6684 2310
Switzerland +41 56 450 18 10
United Kingdom +44 1525 841001
Importer UK: PULS UK Ltd.
Cranfield MK43 0BT
www.pluspower.com
The information in this document is believed to be accurate and reliable and
may change without notice.
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