Siemens SINAMICS G115D

Data for a synchronous reluctance motor
Before starting commissioning, you must know the following data:
• Which motor is connected to the converter?
Note down the motor code on the rating plate of the motor.
See below for an example of the rating plate for a reluctance motor:
• In which region of the world is the motor to be used?
- Europe IEC: 50Hz [kW]
- North America NEMA: 60 Hz [hp] or 60 Hz [kW]
• How is the motor connected?
Pay attention to the connection of the motor (star connection [Y] or delta connection [Δ]).
Note the appropriate motor data for connecting.
6.3.3 Selecting U/f control or speed control
For reluctance motors and permanent magnet synchronous motors, sensorless vector control
(SLVC) is mandatory (p1300 = 20).
For asynchronous motors (2KJ8 asynchronous motors excluded), there are two di󹪜erent
open-loop control or closed-loop control techniques:
• U/f control (calculation of the motor voltage using a characteristic curve)
• Closed-loop speed control (i.e. 󹪝eld-oriented control or vector control)
For 2KJ8 asynchronous motors, sensorless vector control (SLVC) is recommended (p1300 =
20).
Criteria for selecting either U/f control or speed control
In many applications, U/f control su󹪟ces to change the speed of asynchronous motors.
Examples of typical applications for U/f control include:
• Horizontal conveyors
• Pumps
• Fans
• Compressors
Commissioning
6.3Preparing for commissioning
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA 111