Yaskawa DR2 Sigma Servo User Manual
Page 223
5.1 Selecting a Σ -Series Servo
211
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)
Gear+coupling
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