Optimized Setting Ranges For Current Limiting - Siemens SIRIUS 3RW30 Manual

Commissioning
13.2 Commissioning the 3RW40
13.2.9

Optimized setting ranges for current limiting

Example of optimized current limiting setting ranges for the 3RW40 soft starters
①
I
③
I
Figure 13-1
Example of calculating the current limiting
Up to product version E06 (for 3RW40 size
S0, S2, S3) or up to product version E10
(for 3RW40 size S6 and S12)
I
e motor
I
e 3RW
I
limiting
I
max
For setting values, see Optimized setting ranges for current limiting (Page 116).
116
②
= I motor
limiting e
3RW
e
Optimized current limiting setting ranges
= 60 A
= 72 A
= 1 ... 5 x I
e motor
= 5 x I = 300 A
e motor
Product version E07 and higher (for 3RW40
size S0, S2, S3) or product version E11
and higher (for 3RW40 size S6 and S12)
I = 60 A
e motor
I = 72 A
e 3RW
I = 1 ... 5 x I
limiting e motor
I = 5 x I = 360 A
max e 3RW
Manual, 10/2018, NEB535199502000/RS-AB/005
SIRIUS 3RW30 / 3RW40