Siemens SINAMICS G130 Engineering Manual page 346

SINAMICS S120
Engineering Information
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
Servo Control 62.5 μs
125 ms
250 ms
Vector Control 250 ms
400 ms
500 ms
Vector Control 250 ms
Parallel
connection
400 ms
(chassis only)
500 ms
V/f Control 250 ms
400 ms
500 ms
Mixed operation
125 ms / 500 ms
Servo Control
plus
V/f Control
500 ms / 500 ms
Vector Control
plus
V/f Control
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
Frame sizes FX and GX
510 - 720 V DC / 380 - 480 V 3AC
1 vector axis
2 vector axes
3 vector axes
4 vector axes
5 vector axes
6 vector axes
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Number of axes
without performance
expansion
3
3
3
3
3
3
1 (maximum 3 MoMos
connected in parallel)
1 (maximum 4 MoMos
connected in parallel)
1 (maximum 4 MoMos
connected in parallel)
6
6
6
3 + 0, 2 + 2; 1 + 4; 0 + 6
3 + 0; 2 + 2; 1 + 4; 0 + 6
Current Pulse frequency
controller
clock cycle
Standard
(w/o current
derating)
µs kHz
250 2
250 2
250 2
400 1.25
500 1.00
500 1.00
Number of axes Note
with performance
expansion
) )
3* * Only 3 servo axes can be
operated with a cycle of 62.5ms.
6
The performance expansion is
thus ineffective.
6
The performance expansion is
required for 4 servo axes or more,
irrespective of the CPU load.
) )
3* * Only 3 vector axes can be
operated with a cycle of 250ms.
4
The performance expansion is
thus ineffective.
6
The performance expansion is
required for 4 vector axes or more,
1 (maximum 3 MoMos
irrespective of the CPU load.
connected in parallel)
Parallel connection: Not more than
1 (maximum 4 MoMos
1 vector axis can be operated with
connected in parallel)
the specified number of parallel-
connected MoMos
1 (maximum 4 MoMos
connected in parallel)
) )
6* * Only 6 V/f axes can be operated
with a cycle of 250ms. The
9
performance expansion is thus
ineffective.
12
The performance expansion is
required for 7 or more V/f axes,
irrespective of the CPU load.
6 + 0; 5 + 2; 4 + 4; 3 + 6 Mixed operation does not require
2 + 8; 1 + 10; 0 + 12
any additional performance on the
CU320-2 Control Unit.
Two V/f axes can be calculated
6 + 0; 5 + 2; 4 + 4; 3 + 6
instead of one servo axis.
2 + 8; 1 + 10; 0 + 12
Two V/f axes can be calculated
instead of one vector axis.
With current derating
(for current derating factors, see section
"Rated data, permissible output currents,
maximum output frequencies")
kHz kHz
4 8
4 8
4 8
2.5 5
2 4
2 4
Performance
expansion
required
kHz
- No
- No
- No
7.5 Yes
6 Yes
6 Yes