YASKAWA SGDA series

SERVO SELECTION AND DATA SHEETS
5.1.1 Selecting a Servomotorcont.
212
5) Roll Feeder
P
f
Load GD
2
GD
2
ℓ
kg¡cm
2
(lb¡in
2
.)
Press force
Tension F kg (lb)
Press force P kg (lb)
Roller
Roller diameter D mm (in.)
Coefficient of friction
µ
Motor
Overall efficiency
η
Gear+coupling
Motor
Gear ratio R (= Nm/Nl)
G
ear+coup
li
ng
GD
2
g
Gear+coupling GD
2
g
kg¡cm
2
(lb¡in
2
.)
G
g
6) Rotor
Load GD
2
GD
2
ℓ
kg¡cm
2
(lb¡in
2
.)
Load torque
Tℓ
kg¡cm
2
(lb¡in
2
.)
T ℓ
Overall efficiency
η
Motor
Gear ratio R (= Nm/Nl)
Gear+coupling
GD
2
ℓ
Gear+coupling GD
2
g
kg¡cm
2
(lb¡in
2
.)
Gear+coupling
GD
2
g
GD
2
ℓ
7) Others
Load GD
2
GD
2
ℓ
kg¡cm
2
(lb¡in
2
.)
Load torque
Tℓ
kg¡cm
2
(lb¡in
2
.)
Motor speed Nm r/min
DUTY td s
Positioning time ts s
Accel/decel time ta s
D 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 Operating temperature
Other
5