Maximum Motor Cable Lengths; Minimum Resistances And Power Ratings For Braking Resistor - Emerson Unidrive M702 User Manual
Universal variable speed ac drive for induction and permanent magnetmotors
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information
installation
Table 12-24 Maximum motor cable lengths (400 V drives)
400 V Nominal AC supply voltage
Maximum permissible motor cable length for each of
the following switching frequencies
Model
2
3
kHz
kHz
03400025
65 m (210 ft)
03400031
100 m (330 ft)
03400045
130 m (425 ft)
03400062
03400078
200 m (660 ft)
(490 ft)
03400100
04400150
200 m (660 ft)
(490 ft)
04400172
05400270
200 m (660 ft)
(490 ft)
05400300
06400350
300 m
200 m
06400420
(984 ft)
(660 ft)
(490 ft)
06400470
07400660
07400770
250 m (820 ft)
(607 ft)
07401000
08401340
250 m (820 ft)
(607 ft)
08401570
Table 12-25 Maximum motor cable lengths (575 V drives)
575 V Nominal AC supply voltage
Maximum permissible motor cable length for each of
the following switching frequencies
Model
2
3
kHz
kHz
05500030
05500040
05500069
06500100
06500150
06500190
300 m
200 m
150 m
(984 ft)
(660 ft)
(490 ft)
06500230
06500290
06500350
07500440
07500550
08500630
08500860
Table 12-26 Maximum motor cable lengths (690 V drives)
690 V Nominal AC supply voltage
Maximum permissible motor cable length for each of
the following switching frequencies
Model
2
3
kHz
kHz
07600190
07600240
07600290
250 m
185 m
(820 ft)
(607 ft)
07600380
07600440
07600540
08600630
250 m
185 m
(820 ft)
(607 ft)
08600860
242
Electrical
Getting
Basic
installation
started
parameters
4
6
8
12
kHz
kHz
kHz
kHz
50 m
75 m
(165 ft)
100 m
(245 ft)
150 m
(330 ft)
150 m
100 m
75 m
50 m
(330 ft)
(245 ft)
(165 ft)
150 m
100 m
75 m
50 m
(330 ft)
(245 ft)
(165 ft)
150 m
100 m
75 m
50 m
(330 ft)
(245 ft)
(165 ft)
185 m
125 m
90 m
(410 ft)
(295 ft)
185 m
125 m
90 m
(410 ft)
(295 ft)
4
6
8
12
kHz
kHz
kHz
kHz
100 m
75 m
50 m
(330 ft)
(245 ft)
(165 ft)
4
6
8
12
kHz
kHz
kHz
kHz
125 m
90 m
(410 ft)
(295 ft)
125 m
90 m
(410 ft)
(295 ft)
Running
NV Media Card
Optimization
the motor
Operation
•
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
and 6 kHz for RFC-S mode.
The maximum cable length is reduced from that shown in Table 12-23
16
and Table 12-24 if high capacitance motor cables are used. For further
kHz
information, refer to section 4.9.2 High-capacitance / reduced diameter
cables on page 64.
12.1.24
Minimum resistances and power ratings for
37 m
the braking resistor at 40 °C (104 °F)
(120 ft)
Table 12-27 Braking resistor resistance and power rating (200 V)
37 m
resistance *
Model
(120 ft)
37 m
03200050
(120 ft)
03200066
03200080
03200106
04200137
04200185
05200250
06200330
06200440
07200610
07200750
07200830
08201160
08201320
16
Table 12-28 Braking resistor resistance and power rating (400 V)
kHz
resistance *
Model
03400025
03400031
03400045
03400062
03400078
03400100
04400150
04400172
05400270
05400300
06400350
06400420
06400470
07400660
07400770
07401000
08401340
16
08401570
kHz
Onboard
Advanced
Technical
PLC
parameters
data
Minimum
Instantaneous
power rating
Ω
kW
20
8.5
18
9.4
16.5
10.3
8.6
19.7
6.1
27.8
4.5
37.6
Minimum
Instantaneous
power rating
Ω
kW
74
9.2
50
13.6
34
19.9
31.5
21.5
18
37.5
17
39.8
9.0
75.2
7.0
96.6
Unidrive M702 User Guide
UL listing
Diagnostics
information
Continuous
power rating
kW
1.5
1.9
2.8
3.6
4.6
6.3
8.6
12.6
16.4
20.5
24.4
32.5
Continuous
power rating
kW
1.5
2.0
2.8
4.6
5.0
6.6
9.0
12.6
16.2
19.6
21.6
25
32.7
41.6
50.6
60.1
Issue Number: 3
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