NORD Drivesystems BU0500 - Manual (Page 166)

SK 500E – Users Manual for Frequency Inverters
166 BU 0500 GB-1013
The upper limiting values for the various pulse frequencies can be obtained from the following tables.
In all cases, the value (0.1…1.9) which can be set in parameter P537, is limited to the value stated in
the tables according to the pulse frequency. Values below the limit can be set as required.
230V devices: Reduced overload capacity (approx.) due to pulse frequency (P504) and output frequency
Pulse frequency [kHz]
Output frequency [Hz]
4.5 3.0 2.0 1.5 1.0 0.5 0
3...8 200% 170% 150% 140% 130% 120% 110%
10 180% 153% 135% 126% 117% 108% 100%
12 160% 136% 120% 112% 104% 96% 95%
14 150% 127% 112% 105% 97% 90% 90%
16 140% 119% 105% 98% 91% 84% 85%
400V devices: Reduced overload capacity (approx.) due to pulse frequency (P504) and output frequency
Pulse frequency [kHz]
Output frequency [Hz]
4.5 3.0 2.0 1.5 1.0 0.5 0
3...6 200% 170% 150% 140% 130% 120% 110%
8 165% 140% 123% 115% 107% 99% 90%
10 150% 127% 112% 105% 97% 90% 82%
12 130% 110% 97% 91% 84% 78% 71%
14 115% 97% 86% 80% 74% 69% 63%
16 100% 85% 75% 70% 65% 60% 55%
Table 32: Overcurrent relative to pulse and output frequency
Pos : 453 /Anleit ungen/8. / 9. Zusatzinfor mationen [BU 0500 / BU 0200]/ 8. 5. 4 R eduzi erter Ausgangsstrom aufgrund der N etz spannung @ 0\ mod_1328189086271_388. doc x @ 14374 @ 3 @ 1