Baumuller BM4400 - Page 60

Operating requirements
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07 Baumüller Nürnberg GmbH
60
of 358
3.3
m Coherence between peak current of drive and the braking peak current
I
max,phase,acceleration
I
max,phase, braking
----------------------------------------------
U
DC link, braking
U
DC link, acceleration
-------------------------------------------
1

Motor
---------------


2
=
Assumptions: P
shaft, acceleration
= P
shaft,braking
, cos 
accelerate
= cos 
braking
Typical values:
U
DC link, braking
= 780 V
U
DC link, acceleration
= 540 V

Motor
= 0.9
Typically resulting in:
I
max,phase,braking
= 0.56  I
max,phase,acceleration