L08/L09, Motor Reactor / 2 Motor Reactors In Series - Siemens SINAMICS S120 Device Manual

8.23

L08/L09, motor reactor / 2 motor reactors in series

Availability of option
This option is available for the following S120 Cabinet Modules:
● Booksize Cabinet Kits (L08/L09)
● Motor Module in chassis format (L08)
Description
Motor reactors reduce the voltage stress on the motor windings by reducing the voltage
gradients at the motor terminals that occur when motors are fed from drive converters. At the
same time, the capacitive charge/discharge currents that also occur on the output of the
Motor Module are reduced when long motor cables are used.
In addition, a motor reactor must be used for parallel connection of Motor Modules in chassis
format when a motor with a single-winding system is being supplied and the required
minimum motor cable lengths cannot be maintained.
With option L08, one motor reactor is used; with option L09, two motor reactors switched in
series are used to enable the use of a longer motor cable.
Motor cable lengths
Table 8- 40 Maximum motor cable lengths when using motor reactors for Booksize Cabinet Kits
Order no. Power
6SL3720- in kW
(HP)
1TE21-0AU3 4.8 (5)
1TE21-8AU3 9.7 (10)
1TE23-0AU3 16 (20)
1TE24-5AU3 24 (30)
1TE26-0AU3 32 (40)
1TE28-5AU3 46 (60)
1TE31-3AU3 71 (100)
Note
Maximum motor cable length
When motor reactors are used, the maximum motor cable lengths for Motor Modules in
chassis format is 980 ft (300 m) (shielded) or 1,480 ft (450 m) (unshielded).
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
Current
in A
Without motor reactors
Shielded Unshielded
9 165 (50)
18 230 (70)
30 330 (100)
45 330 (100)
60 330 (100)
85 330 (100)
132 330 (100)
8.23 L08/L09, motor reactor / 2 motor reactors in series
Max. motor cable length in ft (m)
With 1 motor reactor (L08)
Shielded
250 (75) 443 (135)
330 (100) 525 (160)
490 (150) 623 (190)
490 (150) 660 (200)
490 (150) 660 (200)
490 (150) 660 (200)
490 (150) 660 (200)
With 2 motor reactors
(L09)
Unshielded Shielded
660 (200) -
788 (240) 1050 (320)
919 (280) 1230 (375)
980 (300) 1320 (400)
980 (300) 1320 (400)
980 (300) 1320 (400)
980 (300) 1320 (400)
Options
Unshielded
-
1575 (480)
1837 (560)
1969 (600)
1969 (600)
1969 (600)
1969 (600)
439