Siemens SINAMICS S120 Function Manual page 611

Notes on the maximum number of drives that can be controlled by a CU320:
•
•
Rules for FW2.3
● The default sampling times must not be changed.
Table 12- 18 Maximum number of drives that can be controlled by a Control Unit 320
Number of
components
Notes on the maximum number of drives that can be controlled by a CU320:
•
•
Drive functions
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
Servo
In addition, the "Safe Standstill" function can be activated and a TM31 connected.
No function modules must be activated.
Servo
1 Active Line Module +
6 Motor Modules
Servo and vector V/f control:
1 Active Line Module + 5 Motor Modules
(Servo: current controller 125 µs / speed controller
125 µs
Vector V/f control:
current controller sampling time 250 µs for a
maximum of 2 V/f drives
current controller sampling time 400 µs for more than
2 V/f drives)
In addition, the "Safe Standstill" function can be activated and a TM31 connected.
No function modules must be activated.
Basic information about the drive system
12.10 Rules for wiring with DRIVE-CLiQ
Vector V/f control (=
vector without speed
control function module)
Vector V/f control (=
vector without speed
control function module)
1 Active Line Module +
4 Motor Modules
(sampling time of current
controller 250 µs / speed
controller 1000 µs)
1 Active Line Module +
6 Motor Modules
(sampling time of current
controller 400 µs / speed
controller 1600 µs)
1 Active Line Module +
10 Motor Modules
(sampling time of current
controller 500 µs / speed
controller 4000 µs)
Vector
Vector
1 Active Line Module +
2 Motor Modules
(sampling time of current
controller 250 µs / speed
controller 1000 µs)
1 Active Line Module +
4 Motor Modules
(sampling time of current
controller 400 µs / speed
controller 1600 µs)
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