Hardware and Engineering DF6-340-... Frequency ... - Moeller.com.tr

Setting Parameters01/02 AWB8230-1413GBPNU Value PNUs which are hidden when PNU b037 isset to 01FunctionC021 <strong>and</strong> C022 02, 06 C042, C043 <strong>Frequency</strong> reached signal03 C040, C041 Overcurrent signal07 C055 to C058 Overload21 C063 0 Hz signal24, 25 C045, C046 <strong>Frequency</strong> reached signal26 C111 Overload signal 2Parameters U001 to U012, PNU b037 = 02In parameter group U, you can save any twelve parameters(a section “User-defined parameters – parameter group U”,page 150). When you set PNU b037 to 02, only these <strong>and</strong>PNU b037 are shown.PNU Name Adjustable in RUN mode Value Function WENormalExtendedb037 Display mode – j 00 All parameters are shown. 0001 Only relevant parameters are shown.02 Only PNU b037 <strong>and</strong> the parameters entered in PNU U001 toU012 are shown.Pulse frequencyHigh pulse frequencies result in less motor noise <strong>and</strong> lower powerlosses in the motor but a higher dissipation in the power amplifiers<strong>and</strong> more noise in the mains <strong>and</strong> motor cables. You shouldtherefore set the pulse frequency as low as possible.During DC braking, the pulse frequency is automatically reducedto 1 kHz.At higher clock frequencies, the frequency inverter’s temperaturealso rises. At high clock frequencies, the output current I 2N musttherefore be reduced depending on the ambient temperature. Thisis called “derating” (a fig. 151 <strong>and</strong> fig. 152).144