Servo systems combine motor + drive + encoder for closed-loop position, speed and torque control. Siemens 1FK7 + SINAMICS S210, Bosch Rexroth IndraDyn S + IndraDrive, Beckhoff AM8000 + AX5000, Lenze MCS and Yaskawa Σ-7 lead.
Servo
Servo
Servo systems (motor + drive) close loops on position, speed and torque — the high-dynamic core in machine tools, pri...
Servo systems (motor + drive) close loops on position, speed and torque — the high-dynamic core in machine tools, printing and SMD. Siemens 1FK7, Bosch Rexroth IndraDyn and Beckhoff AM8000 lead.
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FAQ
Q Servo vs stepper?
A
Stepper open-loop, cheap, step-loss risk. Servo closed-loop, high dynamics, high precision, 3-5x cost. High speed/precision/duty → servo; intermittent positioning → stepper.
Q Inertia ratio matching?
A
J-load / J-motor 1:1 to 1:5; > 10 causes oscillation. Larger motor or smaller load (gear ratio). Siemens Sizer iterates.
Q Absolute encoder advantage?
A
Position known at power-up, no homing; multi-turn 25 bit covers 4096 revolutions. Heidenhain EnDat and SICK Hiperface DSL are open interface standards.