User manual AEG-ELECTROLUX AVS7418

[. . . ] The operator of this device is obliged to communicate these instructions to all personnel transporting or starting the switch mode power supply or performing maintenance or any other work on the unit. Validity These operating instructions comply with the current technical specifications of the switch mode power supply at the time of publication. The contents do not constitute a subject of contract, but serve information purposes only. AEG reserves the right to make modifications with regard to contents and technical data in these operating instructions without prior notification. [. . . ] An efficiency factor of > 0. 99 is therefore achieved. The DC 2000 is supplied directly with DC voltage. Transistors convert the DC voltage to AC voltage at 100 kHz. Electrical isolation and voltage adjustment to the secondary side is performed with the aid of a transformer. The 100 kHz AC voltage on the secondary side is rectified by fast diodes. The output voltage is adjustable with the UA potentiometer within in a limited range. Procedure: Disconnect the load and the battery, if applicable, on the output. Page 11 of 21 0206 BAL, en i Switch Mode Power Supply AVS7418 / DC 2000 - Set the required monitoring values with the UA> and UA< potentiometers with a screwdriver: - UA> Adjustment: - set the UA> potentiometer to the far right stop, set UA to the required UA> value, turn the UA> potentiometer to the left until UA> responds - UA< Adjustment: Performed as for UA> adjustment (observe the discharge time of the output capacitors and monitoring delay). Connect the load/battery Set the UA output voltage to the required value with the UA potentiometer. The maximum output current is also adjustable within a limited range with the IA potentiometer. - Procedure: Increase the load until the set current limitation is triggered Adjust the IA potentiometer with a screwdriver (IA smaller when turned to the left). 5. 3 5. 3. 1 Monitoring Mains Monitoring The mains monitoring assembly fulfils various functions. It ensures the intrinsic safety of the unit against overloads and overvoltages with fixed switching point settings. The response values (switching points) are given in the technical data sheet. On Hysteresis (Shutd ow n hysteresis ra ng e) Off U ma ins[V] Overvolta g e Und ervolta g e Figure 3 Mains undervoltage monitoring The unit is switched off if the mains supply drops below the switching point. In the "int" position the unit works in basic mode with the output voltage and current values stated in the technical data (refer to Chapter 11). In the "ext" position the output voltage can be adjusted with an external set value input. The "external" setting is indicated by a yellow LED on the front of the unit. The current set value function is set at the works to the internal set value and can be switched to an external set value input if required. The set value setting for voltage and/or current is performed on signal connector X11 with the signals shown in the circuit diagram (refer to Chapter 5. 1). In this case the voltage difference between + Uset and UA is between 0 V and 30 V. The inputs for the external set value inputs are galvanically connected to the - UA output!In order to obtain defined conditions the earth connection of the external set value inputs (X11:3 and X11:5) must be connected to the unit earth X11:1. Noise immunity to high-frequency fields is achieved by utilization of shielded cables. The shielding must be connected to the front of the unit (next to X11). The rated voltage and current values are achieved with a set value setting of 4. 0 V DC. [. . . ] ESD test to EN 61000-4-2, 6 kV contact, 8 kV air discharge HF field to EN 61000-4-3, 10 V/m (30 MHz - 1 GHz) - Power cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Burst test to EN 61000-4-4, 2 kV Surge test to EN 61000-4-5, 4 kV asymmetrical 2 kV symmetrical - Control cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Burst test to EN 61000-4-4, 2 kV Surge test to EN 61000-4-5, 2 kV asymmetrical Functional extra-low voltage . . . . . . . . . . with safe isolation at UA 60 V to VDE 0100 Part 410 11. 83. [. . . ]