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--- en:automation:ups-meanwell-hidden [2021/08/03 10:08]
avsetula old revision restored (2021/08/03 10:05)
+++ en:automation:ups-meanwell-hidden [2021/11/10 12:28] (current)
avsetula
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-====== Backup power supply for Unipi units ======
+<html><div class="version-switch">
+  <a href="/en:automation:ups-meanwell-12v-hidden"><div>DRC-60A</div></a>
+  <a href="#backup_power_supply_for_unipi_units_drc-60b"><div class="actual-version">DRC-60B</div></a>
+</div></html>
+====== Backup power supply for Unipi units (DRC-60B) ======
 <WRAP group>
 <WRAP half column 81%>
-The following tutorial describes how to connect Unipi units with the Meanwell DRC-60B power supply, which allows the output power to be backed up using batteries. It is also useful /*FIXME: useful? recommended nebo suitable*/ to stabilize the power supply's output voltage using a DC/DC converter.
+The following tutorial describes how to connect Unipi units with the Mean Well DRC-60B power supply, which allows the output power to be backed up using batteries. It is also necessary to stabilize the power supply's output voltage using a DC/DC converter.
 This power supply is used to supply power, but also to charge and maintain charged batteries. It can be operated, subject to the conditions described below, with all Unipi units and other selected Unipi equipment. In the event of a mains power failure, the power supply switches seamlessly to battery power mode. This achieves an uninterruptible power supply.
@@ Line 22: / Line 27: @@
 === Elements used ===
   * Wires of different colours (Cu, 0.5mm2)
-  * Switching power supply Meanwell DRC-60B with UPS function
+  * Switched power supply Mean Well DRC-60B with UPS function
-  * DC/DC converter Meanwell DDR-15G-24
+  * DC/DC converter Mean Well DDR-15G-24
-  * Any 12V acid-lead batteries (e.g. 2x CSB HR1234W 12V/9Ah)
+  * Any 12 V⎓ acid-lead batteries (e.g. 2× CSB HR1234W 12V/9Ah)
   * Unipi Patron S207 unit
-===== Device description =====
+===== Description of the devices used =====
-The DRC-60B power supply can be supplied with an input voltage of 110 – 240 V~. The power supply's output can achieve a maximum voltage of 27.6 V⎓ with a maximum current of 2.15 A. In combination with a suitable voltage regulator (DC/DC converter), it is ideal for powering all Unipi units from the Patron, Neuron, Axon, and Unipi 1.1 line. The DRC-60B itself, without the inverter, can be used to power Unipi Gate line devices, as it can be powered with voltages in the 9 – 30 V⎓ range. For S-size units, the DDR-15G-24 inverter can be used. For M and L sizes, the DDR-30G-24 should be used. Unipi 1.1 needs to be powered with 5 V⎓, so a suitable choice is e.g. DDR-15G-5.
+The **DRC-60B** power supply can be supplied with an input voltage of 110 / 230 V~. The power supply's output can achieve a maximum voltage of 27.6 V⎓ with a maximum current of 2.15 A. In combination with a suitable voltage regulator (DC/DC converter), it is ideal for powering all Unipi units from the Patron, Neuron, Axon, and Unipi 1.1 product lines. The DRC-60B itself, without the converter, can be used to power Unipi Gate product line devices, as it can be powered with voltages in the 9–30 V⎓ range. For S-size units, the **DDR-15G-24** converter can be used. For M and L sizes, the **DDR-30G-24** should be used. Unipi 1.1 needs to be powered with 5 V⎓, so a suitable choice is e.g. **DDR-15G-5**.
 The power supply powers the connected load (Unipi unit) and simultaneously charges and maintains the batteries. The total output current of the power supply is up to 2.15 A, of which 0.75 A is reserved for charging the batteries and 1.4 A for the load at the output.
@@ Line 49: / Line 54: @@
 ==== Wiring description ====
-  * First, connect the output voltage (**+V**, **-V**) of the DRC-60B power supply to the input terminals of the DDR-15G-24 inverter (**+Vin [4]**, **-Vin [3]**)
+  * First, connect the output voltage (**+V**, **-V**) of the DRC-60B power supply to the input terminals of the DDR-15G-24 converter (**+Vin [4]**, **-Vin [3]**).
-  * The output voltage from the inverter  (**+Vo [1]**, **-Vo [2]**) is connected to the power supply terminals of the unit
+  * The output voltage from the converter (**+Vo [1]**, **-Vo [2]**) is connected to the power supply terminals of the unit.
-  * The conductor from the inverter terminal **-Vo [2]** is connected to the **DIGND** terminal of the digital inputs of the unit
+  * The conductor from the converter terminal **-Vo [2]** is connected to the **DIGND** terminal of the digital inputs of the unit.
-  * The conductor from the inverter terminal **+Vo [1]** is connected to the first terminal of the **Bat.Low** signal relay  and the first terminal of the **AC OK** relay
+  * The conductor from the converter terminal **+Vo [1]** is connected to the first terminal of the **Bat.Low** signal relay  and the first terminal of the **AC OK** relay.
-  * The second contact of the **Bat.Low** signal relay is connected to digital input **DI1** and the second contact of the **AC OK** relay is connected to **DI2**
+  * The second contact of the **Bat.Low** signal relay is connected to digital input **DI1** and the second contact of the **AC OK** relay is connected to **DI2**.
-  * Před připojením akumulátorů je nejprve nutné nastavit maximální výstupní napětí zdroje pomocí trimru **+V ADJ**. Napětí musí odpovídat udržovacímu napětí akumulátorů, v případě našeho zapojení je nastaveno napětí 27,4 V⎓, aby bylo na každém z akumulátorů dosaženo napětí 13,7 V⎓. /* FIXME */
+  * Before connecting the batteries, the maximum output voltage of the power supply must first be set using the **+V ADJ** trimmer. The voltage must match the holding voltage of the batteries, in the case of our wiring the voltage is set to 27.4 V⎓ to achieve a voltage of 13.7 V⎓ on each of the batteries.
-  * The batteries must be connected in series: the positive terminal of battery 1 is connected to the negative terminal of battery 2
+  * The batteries must be connected in series: the positive terminal of battery 1 is connected to the negative terminal of battery 2.
-  * The negative terminal of battery 1 is then connected to the **-Bat.** power supply terminal. The positive terminal of battery 2 is connected to the **+Bat.**
+  * The negative terminal of battery 1 is then connected to the **-Bat.** power supply terminal. The positive terminal of battery 2 is connected to the **+Bat.**.
-  * Finally, connect the conductors (**⏚**, **N**, **L**) to the respective terminals of the power supply
+  * Finally, connect the conductors (**⏚**, **N**, **L**) to the respective terminals of the power supply.
@@ Line 63: / Line 68: @@
   * Before the input voltage is connected for the first time, the power supply output is disconnected even when the batteries are connected and fully charged. Therefore, the input voltage must also be connected for full operation. When the input voltage is subsequently disconnected, e.g. power outage, the power supply output then switches seamlessly to battery power mode.
   * When selecting the power supply protection, a current surge (inrush current) of up to 60 A must be taken into account when switching the input of the power supply.
-  * Neither the power supply nor the inverter requires additional cooling.
+  * Neither the power supply nor the converter requires additional cooling.
   * The input of the power supply should be preferably treated with a suitable surge arrester.
   * The DRC-60B power supply meets the requirements for safety transformers and is a small safe voltage (SELV) power supply.
@@ Line 74: / Line 79: @@
 ==== Documentation ====
-  * {{ :en:automation:ups_meanwell_drc-60.pdf |MeanWell DRC-60B - datasheet}}
+  * {{ :en:automation:ups_meanwell_drc-60.pdf |Mean Well DRC-60B - datasheet}}
-  * {{ :en:automation:ups_meanwell_ddr-15.pdf |MeanWell DDR-15G-24 - datasheet}}
+  * {{ :en:automation:ups_meanwell_ddr-15.pdf |Mean Well DDR-15G-24 - datasheet}}
   * [[cs:files:products:00-start|Documentation for HW Unipi]]