SIEMENS
1/70
Siemens D 83.1 · 2016
1
Introduction
General technical specifications
Converter operation – VSD drive configuration
■
Overview
Individual drive check of variable speed drive (VSD)
systems (IC411 self-ventilated motors) with configuration
characteristics for converter operation - motors 1PS0, 1PS1,
1PS5 and 1MD5
Limits for example control ranges are listed in the power tables
on the following pages. For individual drive checks, the following
configuration characteristics apply to frame sizes 71 to 200 and
225 to 355.
For driven machine power or torque less than or equal to rated
data, operation up to
f
max
in accordance with the power tables is
possible. This applies to configurations with any load torques
and control ranges.
The maximum admissible speed in field weakening can
be calculated by dividing
f
max
· 120 by the motor's number of
poles.
Review of the feasibility of the desired operating point
For this purpose:
•
The desired load/power
P
2
must be divided by the
VSD power
P
VSD
•
The desired control speed
n
must be divided by the
VSD asynchronous speed
n
asyn_VSD
•
The desired load/torque
T
D
must be divided by the
VSD torque
T
VSD.
These calculated values should be checked afterwards against
the following diagrams to determine whether the desired
operating point is below the VSD load/torque limit
T
D
/
T
VSD
and the load/power limit
P
2
/
P
VSD.
Configuration characteristics for frame sizes 71 to 200
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
VSD
P
/
2
P
VSD load/power limit
VSD
P
/
2
P
VSD load/power limit
VSD
T
/
D
T
VSD load/torque limit
Constant flow range
Field weakening range
VSD
T
/
D
T
VSD load/torque limit
asyn_VSD
n
/
n
VSD control speed
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
1.00
0.50
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
G_D083_EN_00161
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© Siemens AG 2016