Lab.gruppen PLM 20K44 Operation Manual

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Lab.gruppen PLM 20K44 Operation Manual Manual pdf 24 page image

5. Operation and performance24 PLM+ SERIES Operation Manual rev 3.0.15.3.12. Power supply protectionThe power supply is very advanced and has several internal control and monitoring functions. Should any of thesefail, the power supply will shut down to prevent damage or limit severity of the failure. Power supply faults, orpower supply needs service faults, are indicated by flashing red on the frame LEDs and a corresponding textdescription on the front panel, in Lake Controller and CAFÉ software programs. Refer to section 9.1 for moreinformation on warnings and faults.In the extreme event of simultaneous low mains voltage supply and high power demand, the amount of incomingsupply will then be forced to shut down. Thiscondition is a power protect fault, indicated with a red LED and associated error messages registered in LakeController and CAFÉ software programs.5.3.13. Mains anomaly protectionAC mains service.Over–voltage – If the power supply detects mains voltage above 400 V peak or 270 V RMS, it will enter protectiveUnder–voltage – If the power supply detects mains voltage of less than 65 V, it will enter protective shut downMains instability – If the power supply detects protracted instability in the AC mains, it will enter protective shutMains glitch – If the power supply detects a momentary mains glitch (missing cycles) at the AC inlet, a warningindication will be reported with flashing yellow on the frame LEDs and a corresponding text description on thefront panel, in Lake Controller and CAFÉ software programs. The powers supply and product continue operationthroughout a mains glitch.5.4. Power SupplyThe R.SMPS (Regulated Switch Mode Power Supply) is designed to keep supply voltage rails at optimum levels.Thus the R.SMPS can deliver full rail voltage to the output staconsistent transient response and a clean LF response.The PLM+ features a universal power supply with power factor correction (PFC). The device can accept any mainscurrent peaks on the lines and reduces the requirements placed on the mains distribution system. PLM+ units offeran unparalleled power factor extremely close to one.shut down mode. The amplifier will auto-restart if the condition clears. Will be indicated by flashing red on the frameLEDs and a corresponding text description on the front panel, in Lake Controller and CAFÉ software programs.Refer to section 9.1 for more information on warnings and faults.mode. The amplifier will auto-restart if the condition clears. Will be indicated by flashing red on the frame LEDsand a corresponding text description on the front panel, in Lake Controller and CAFÉ software programs.Refer to section 9.1 for more information on warnings and faults.down mode. The amplifier will auto-restart if the condition clears. Will be indicated by flashing red on the frame LEDsand a corresponding text description on the front panel, in Lake Controller and CAFÉ software programs.Refer to section 9.1 for more information on warnings and faults.Power protect – In the extreme event of simultaneous low mains voltage supply and high power demand, theamount of incoming energy may not be sufficient for continued operation. The power supply will then be forced toshut down. This condition is a power protect fault, indicated with flashing red on the frame LEDs and a correspondingtext description on the front panel, in Lake Controller and CAFÉ software programs. Refer to section 9.1 for moreinformation on warnings and faults.