Rockwell Automation 1305 AC Drive, Series C, Firmware 6.xx and Up User Manual
Page 28
Installation/Wiring
2-14
1000V and 1200V Motor Insulation Ratings: Cable lengths
listed in Table 2.D are for operating the 1305 drive at a
maximum carrier frequency of 4 kHz on motor insulation
ratings of 1000V and 1200V. Consult the factory regarding
operation above 4 kHz carrier frequency. Multiply listed
distances by 0.85 for operation at high line conditions (above
480V). If the maximum cable length used exceeds the
distances indicated, refer to Section B.
1600V Motor Insulation Ratings: Cable lengths listed in
Table 2.D are based on operating the 1305 drive at a maximum
carrier frequency of 2 kHz on motor insulation ratings of
1600V. Consult the factory regarding operation above 2 kHz
carrier frequency. Multiply listed distances by 0.55 for
operation at high line conditions (above 480V). If the
maximum cable length used exceeds the distances indicated,
refer to Section B.
The Allen-Bradley 1329-HR is representative of 1600V
P-P
insulation rating designs and is recommended in applications
where long cable lengths are required.
Table 2.D Maximum Motor Cable Length Restrictions
No External Devices or Reactor at the Motor
Using a Motor with Insulation V
P
-
P
Drive
HP
Motor
HP
1000 Volt
1200 Volt
1600 Volt 1329 HR
HP
(460V)
HP
(460V)
Any Cable
Any Cable
Shielded Cable
Unshielded Cable
Maximum Carrier
Frequency
4 kHz
4 kHz
2 kHz
2 kHz
High-Line Derate
Multiplier
0.85
0.85
0.55
0.55
5
5
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
3
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
2
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
3
3
9m (30ft)
30m (100ft)
91m (300ft)
121m (400ft)
2
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
1
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
2
2
9m (30ft)
30m (100ft)
76m (250ft)
121m (400ft)
1
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
0.5
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
1
1
9m (30ft)
30m (100ft)
68m (225ft)
121m (400ft)
1
1
9m (30ft)
30m (100ft)
68m (225ft)
121m (400ft)
1
0.5
9m (30ft)
30m (100ft)
121m (400ft)
121m (400ft)
0.5
0.5
9m (30ft)
30m (100ft)
45m (150ft)
106m (350ft)