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Unidrive M100 User Guide 117
Issue Number: 1
Table 11-20 Maximum motor cable lengths (400 V drives)
• Cable lengths in excess of the specified values may be used only when special techniques are adopted; refer to the supplier of the drive.
• The default switching frequency is 3 kHz for Open-loop and RFC-A.
The maximum cable length is reduced from that shown in Table 11-18, Table 11-19 and Table 11-20 if high capacitance motor cables are used. For
further information, refer to section 4.4.2 High-capacitance / reduced diameter cables on page 37.
Model
400 V Nominal AC supply voltage
Maximum permissible motor cable length for each of the following switching frequencies
0.667 kHz 1 kHz 2 kHz 3 kHz 4 kHz 6 kHz 8 kHz 12 kHz 16 kHz
02400013
100 m (328 ft)
75 m
(246 ft)
50 m
(164 ft)
37.5 m
(123 ft)
25 m
(82 ft)
18.25 m
(61 ft)
02400018
02400023
02400032
02400041
03400056
100 m (328 ft)
75 m
(246 ft)
50 m
(164 ft)
37.5 m
(123 ft)
25 m
(82 ft)
18.25 m
(61 ft)
03400073
03400094
04400135
100 m (328 ft)
75 m
(246 ft)
50 m
(164 ft)
37.5 m
(123 ft)
25 m
(82 ft)
18.25 m
(61 ft)
04400170