Omron 8U0108-E1-01, User Manual

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XtraDrive User Manual
Appendix
C: Specifications for Peripheral Devices
C-16
Servo Amplifier Capacity of 0.8 to 3.0kW
Servomotors with a capacity of 500W to 3kW have built-in regenerative
resistors. The allowable frequencies for just the servomotor during
acceleration/deceleration operation, in the run cycle from 0 to the
maximum rotation speed to 0, are summarized in the following table.
Convert the data into the values obtained with actual rotation speed
used and load inertia to determine whether an external regenerative
resistor is needed.
Series Allowable Frequencies in Regeneration Mode (r/min)
Voltage
Capacity
Symbol
03 05 08 09 10 13 15 20 30
SGMAH — — 89 — — — — — —
SGMPH — — 29 — — — 17 — —
SGMGH-
# A # A
34 — 13 — 10 — 12 8
200V
SGMSH — — — — 39 — 31 48 20
SGMGH — 42 — 15 — 10 — 12 8
SGMSH — — — — 47 — 31 48 20
400V
SGMUH — — — — 27 — 19 — 13
Operating Conditions for Allowable Regenerative
Frequency Calculation
Use the following equation to calculate the allowable frequency for
regeneration mode operation.
Allowable frequency =
n) (1
only servomotor for frequency Allowable
+
x
2
used speed Rotation
speed rotation . Max




Minute
Cycles
Where: n = J
L
/J
M
J
L
: Motor axis conversion load inertia [oz·in·s
2
(kg·m
2
)]
J
M
: Servomotor rotary inertia [oz·in·s
2
(kg·m
2
)]