Siemens SINAMICS S150 - Page 346

SINAMICS S120
Engineering Information
SINAMICS Engineering Manual – November 2015
Ó Siemens AG
346/528
However, the specified information already allows for the internal communication required between the drive objects
and for the closed-loop control of the Active Infeed, Smart Infeed or Basic Infeed which supplies the converter.
Control mode Current controller
clock cycle
Number of axes
without performance
expansion
Number of axes
with performance
expansion
Note
Servo Control 62.5 μs 3 3*
)
*
)
Only 3 servo axes can be
operated with a cycle of 62.5ms.
The performance expansion is
thus ineffective.
The performance expansion is
required for 4 servo axes or more,
irrespective of the CPU load.
125 ms
3 6
250 ms
3 6
Vector Control
250 ms
3 3*
)
*
)
Only 3 vector axes can be
operated with a cycle of 250ms.
The performance expansion is
thus ineffective.
The performance expansion is
required for 4 vector axes or more,
irrespective of the CPU load.
Parallel connection: Not more than
1 vector axis can be operated with
the specified number of parallel-
connected MoMos
400 ms
3 4
500 ms
3 6
Vector Control
Parallel
connection
(chassis only)
250 ms
1 (maximum 3 MoMos
connected in parallel)
1 (maximum 3 MoMos
connected in parallel)
400 ms
1 (maximum 4 MoMos
connected in parallel)
1 (maximum 4 MoMos
connected in parallel)
500 ms
1 (maximum 4 MoMos
connected in parallel)
1 (maximum 4 MoMos
connected in parallel)
V/f Control
250 ms
6 6*
)
*
)
Only 6 V/f axes can be operated
with a cycle of 250ms. The
performance expansion is thus
ineffective.
The performance expansion is
required for 7 or more V/f axes,
irrespective of the CPU load.
400 ms
6 9
500 ms
6 12
Mixed operation
Servo Control
plus
V/f Control
125 ms / 500 ms
3 + 0, 2 + 2; 1 + 4; 0 + 6 6 + 0; 5 + 2; 4 + 4; 3 + 6
2 + 8; 1 + 10; 0 + 12
Mixed operation does not require
any additional performance on the
CU320-2 Control Unit.
Two V/f axes can be calculated
instead of one servo
axis.
Two V/f axes can be calculated
instead of one vector axis.
Vector Control
plus
V/f Control
500 ms / 500 ms
3 + 0; 2 + 2; 1 + 4; 0 + 6 6 + 0; 5 + 2; 4 + 4; 3 + 6
2 + 8; 1 + 10; 0 + 12
CU320-2: Maximum number of Motor Modules or axes with and without performance expansion with firmware version 4.3 or higher
For SINAMICS S120 Motor Modules in Chassis or Cabinet Modules format which are operated on a CU320-2 Control
Unit with firmware version 4.3 in vector or V/f control mode (vector-type drive object) with a minimum current
controller clock cycle of 250 μs, the following interdependencies exist between the number of axes, the minimum
current controller clock cycle determined by the number of axes and the settable pulse frequencies (data are based
on the factory-set current controller clock cycle).
SINAMICS S120 Motor Modules
in formats
Chassis and Cabinet Modules
(w/o Booksize Cabinet Kits)
on one CU320-2 Control Unit
Current
controller
clock cycle
Pulse frequency Performance
expansion
required
Frame sizes FX and GX
510 - 720 V DC / 380 - 480 V 3AC
Standard
(w/o current
derating)
With current derating
(for current derating factors, see section
"Rated data, permissible output currents,
maximum output frequencies")
µs kHz kHz kHz kHz
1 vector axis 250 2 4 8 - No
2 vector axes 250 2 4 8 - No
3 vector axes 250 2 4 8 - No
4 vector axes 400 1.25 2.5 5 7.5 Yes
5 vector axes 500 1.00 2 4 6 Yes
6 vector axes 500 1.00 2 4 6 Yes