Power Modules Operated From An Uncontrolled Infeed - Siemens SIMODRIVE 611 Planning Manual

05.01
6.2

Power modules operated from an uncontrolled infeed

The drive modules can always be operated from the uncontrolled and controlled
infeed modules of the SIMODRIVE 611 drive converter system. The configuring/
engineering and power data of this Planning Guide refers to operation with the
controlled infeed/regenerative feedback modules. This data, if required, should
be corrected when operated from uncontrolled infeed modules.
– Operation of drive modules with PH and 1FE1 motors and induction motors
on the uncontrolled infeed
When operating main spindle and induction drive modules from uncontrolled
infeeds (UI modules), a lower maximum motor output is available in the upper
speed range than when using the infeed/regenerative feedback module.
For the UI module, the following inter–relationship is obtained for the available
continuous output as a result of the lower DC link voltage of 490 V (for line sup-
ply infeed with 3–ph. 400 V AC – 10%):
If
––––––––––––––––– < 1
then, the max. continuous output is given by:
P
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
6.2 Power modules operated from an uncontrolled infeed
V
DC link
1.5 x V
N motor
V
DC link
= P x –––––––––––––––––––
cont. N
1.5 x V
N motor
6 Infeed Modules
V = 490 for UI modules
DC link
V = 600 for I/R modules
DC link
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6