Siemens Sinumerik 801 Technical Manual page 50

Start-Up
Drive current settings
2-34
Stepper motor
BERO (with LED)
Fig.2-28 Installing the BERO – 1
If there are reduction gears between the stepper motor and proximity
switch
接近开关（带LED）
BERO (with LED)
连接至X20接口
To X20 interface
Stepper motor
步进电机
Fig. 2-29 Installing the BERO - 2
Use stepper drives to actuate stepper motors of different torques. When
starting up the drive system, set the drive current according to the torque of
the motor used. See figure below for current settings:
Leadscrew
Coupling joint
To X20 interface
Leadscrew
丝杠
齿轮二
Gear 2
Gear 1
齿轮一
SINUMERIK 801
Start-Up