Yaskawa Sigma Mini - Manual (Page 158)

SERVO SELECTION AND DATA SHEETS
4.1.1 Selecting a Servomotor
— 4-8 —
Roll Feeder
Load GD
2 Jℓ kg¡cm 2 (lb¡in 2 .) Press force
Tension F N (lb)
Press force P N (lb)
Roller
Roller diameter D mm (in.)
Roller
Coefficient of friction µ
Motor
Overall efficiency η
Motor
Jℓ
Gear ratio R (= Nm/Nl) Gear+coupling
Jg
Gear+coupling Jg kg¡cm 2 (lb¡in 2 .)
Jg
Rotor
Load GD
2 Jℓ kg¡cm 2 (lb¡in 2 .)
Load torque Tℓ N¡m (lb.in.)
T ℓ
Overall efficiency η
Motor
T ℓ
Gear ratio R (= Nm/Nl)
Gear+coupling
Motor
Gear+coupling Jg kg¡cm 2 (lb¡in 2 .)
Gear+coupling
Jg
Jℓ
Others
Load GD
2 Jℓ kg¡cm 2 (lb¡in 2 .)
Load torque Tℓ N¡m (lb.in.)
Motor speed Nm min −1
DUTY td s
Positioning time ts s
Accel/decel time ta s
Duty cycle
DUTY
td s
Positioning distance Ls mm (in.)
Moving member speed Vℓ m/min
Positioning time ts s
Accel/decel time ta s
Enter either Vℓ or ts. If both are entered, specify priority.
D
Operating environment
D Operating temperature
D Other
4