R7M-A75030 Omron, R7M-A75030 Datasheet - Page 179
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R7M-A75030
Manufacturer Part Number
R7M-A75030
Description
MOTORSERVO CYLINDER 750W W/O KEY
Manufacturer
Omron
Datasheet
1.R7A-CNA02R.pdf
(252 pages)
Specifications of R7M-A75030
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
R7MA75030
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R7M-A75030-S1
Manufacturer:
CINCH
Quantity:
200
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System Design and Installation
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
■
SMARTSTEP A-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).
• Lengthen the operation cycle, i.e., the cycle time (to decrease the average regenerative power).
• E
• E
• E
400 W or less.), the values for both E
regenerative energy absorption capacity. (For details, refer to 3-3-2 Servo Driver Regenerative
Energy Absorption Capacity.)
(i.e., models of 750 W), the average amount of regeneration P
this value must be lower than the Servo Driver’s regenerative energy absorption capacity. (For
details, refer to 3-3-2 Servo Driver Regenerative Energy Absorption Capacity.)
the rotation speed.)
Amount of Internal Regeneration Resistance in Servo Drivers
The average amount of regeneration (P
one cycle of operation.
P
T: Operation cycle [s]
g1 =
g2 =
g3 =
r
imately 90% of the values derived from these equations.
= (E
N
T
T
t
t
1
2
D1
L2
, t
1
:
, N
1
2
1
2
:
2π
60
, T
3
g1
:
•
•
2
D2
: Rotation speed at beginning of deceleration [r/min]
+ E
2π
60
• N
2π
60
: Deceleration torque [N·m]
Torque when falling [N·m]
Deceleration time [s]
Constant-velocity travel time when falling [s]
g2
• N
2
• N
• T
+ E
1
2
L2
• T
g3
• T
• t
)/T [W]
D1
D2
2
• t
• t
1
3
[J ] = 0.0524 • N
[J ] = 0.105 • N
[J ] = 0.0524 • N
g1
or [E
r
) is the power consumed by regeneration resistance in
g2
+E
2
1
• T
g3
2
• T
• T
] (unit: J) must be lower than the Servo Driver’s
L2
D1
D2
• t
• t
• t
2
1
3
[J ]
[J]
[J ]
r
(unit: W) must be calculated, and
Chapter 3
3-39
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