R88M-W75030T-S1 Omron, R88M-W75030T-S1 Datasheet - Page 190

• Manufacturer Part Number: R88M-W75030T-S1
• Description: SERVO MOTOR 750W 200V
• Manufacturer: Omron

Specifications of R88M-W75030T-S1

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: R88MW75030TS1

Note There is some loss due to winding resistance, so the actual regenerative energy will be approx-
• For Servo Driver models with internal capacitors for absorbing regenerative energy (i.e., models of
• For Servo Driver models with internal regeneration resistance for absorbing regenerative energy
3-3-2 Servo Driver Regenerative Energy Absorption Capacity
■
W-series Servo Drivers absorb regenerative energy by means of internal capacitors or resistors. If
the regenerative energy is more than can be processed internally, an overvoltage error is generated
and operation cannot continue. The following table shows the regenerative energy (and amount of
regeneration) that the individual Servo Drivers themselves can absorb. If these values are exceeded,
take the following measures.
• Connect external regeneration resistance (to improve the regeneration processing capacity).
• Reduce the operating rotation speed. (The amount of regeneration is proportional to the square of
• Lengthen the deceleration time (to decrease the regenerative energy produced per time unit).
3-34
System Design and Installation
400 W or less.), the values for both E
erative energy absorption capacity. (The capacity varies depending on the model. For details, refer
to 3-3-2 Servo Driver Regenerative Energy Absorption Capacity.)
(i.e., models of 500 W or more), the average amount of regeneration P
lated, and this value must be lower than the Servo Driver's regenerative energy absorption capacity.
(The capacity varies depending on the model. For details, refer to 3-3-2 Servo Driver Regenerative
Energy Absorption Capacity.)
the rotation speed.)
Amount of Internal Regeneration Resistance in Servo Drivers
N
T
T
t
t
The average amount of regeneration (Pr) is the power consumed by regeneration resistance in
one cycle of operation.
P
T: Operation cycle
1
2
D1
L2
r
1
, t
: Constant-velocity travel time when falling [s]
imately 90% of the values derived from these equations.
, N
= (E
: Torque when falling [N·m]
3
, T
: Deceleration time [s]
2
D2
: Rotation speed at beginning of deceleration [r/min]
g1
: Deceleration torque [N·m]
+ E
g2
+ E
g3
)/T [W]
[s]
g1
or E
g2
(unit: J) must be lower than the Servo Driver's regen-
r
(unit: W) must be calcu-
Chapter 3