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XT40.241 Datasheet(PDF) 6 Page - PULS GmbH |
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XT40.241 Datasheet(HTML) 6 Page - PULS GmbH |
6 / 20 page XT40.241, XT40.242 – X-Series 24V, 40A, THREE-PHASE INPUT Jan. 2007 / Rev. 1.0 DS-XT40.24x-EN All parameters are specified at 24V 40A, 3x400Vac (XT40.241) or 3x480Vac (XT40.242), 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany 6/20 8. HOLD-UP TIME XT40.241 XT40.242 Hold-up Time typ. 2.0ms 2.0ms 40A, resistive load, see Fig. 8-2 typ. 1.8ms 1.8ms 40A, constant power load, see Fig. 8-2 typ. 4.0ms 4.0ms 20A, resistive load typ. 3.6ms 3.6ms 20A, constant power load Hold-up Time min. 1.6ms 1.6ms 40A, resistive load, see Fig. 8-2 min. 1.45ms 1.45ms 40A, constant power load, see Fig. 8-2 min. 3.2ms 3.2ms 20A, resistive load min. 2.9ms 2.9ms 20A, constant power load Fig. 8-1 Hold-up time, definitions The energy is stored in the output capacitor. As soon as the input is turned off, the output capacitor will be discharged and the voltage will dissipate according to the curves in Fig. 8-2. The lighter the load, the longer the hold-up time. Half the load means twice the hold-up time. The hold-up time depends on the load characteristic. The curves below show the hold-up time for a load with a resistive and a constant power characteristic. The hold-up time is defined as the period of time when the input is turned off and until the output voltage falls below 24V –15% (20.4V). This value is defined in the IEC61131-2 as the lower limit for the supplying voltage. -15% Hold- up Time Zero Transition Output Voltage Intput Voltage Fig. 8-2 Hold-up time vs. input voltage 24V 12V 18V 14V VOUT 22V 16V 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.5 6.0 6.5 7.0 7.5 8.0 5.0 8.5 9.0ms 40A, constant power load, typ. 40A, resistive load, typ. T 40A, constant power load, min. 40A, resistive load, min. 20.4V Note: At no load, the hold-up time can be up to one minute. The green DC-ok LED is on during this time. |
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