R88A-CNG02R Omron, R88A-CNG02R Datasheet - Page 278
R88A-CNG02R
Manufacturer Part Number
R88A-CNG02R
Description
Encoder Connector INC Motor
Manufacturer
Omron
Datasheet
1.R88A-CNG01R.pdf
(508 pages)
Specifications of R88A-CNG02R
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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4
4-4 Regenerative Energy Absorption
4-4 Regenerative Energy Absorption
Calculating the Regenerative Energy
4-45
Horizontal Axis
Servomotor
output torque
Servomotor
operation
The Servo Drives have internal regenerative energy absorption circuitry, which absorbs the
regenerative energy produced during Servomotor deceleration and prevents the DC voltage from
increasing. An overvoltage error occurs, however, if the amount of regenerative energy from the
Servomotor is too large. If this occurs, measures must be taken to reduce the regenerative energy
by changing operating patterns, or to increase the regenerative energy absorption capacity by
connecting an External Regeneration Resistor.
• In the output torque graph, acceleration in the positive direction is shown as positive, and
• The regenerative energy values for each region can be derived from the following equations.
Note Due to the loss of winding resistance and PWM, the actual regenerative energy will be
acceleration in the negative direction is shown as negative.
E
E
g
g
1
2
=
=
approximately 90% of the values derived from these equations.
N
T
t
1
D1
1
2
1
2
, t
1
, N
+N
, T
2
*
*
:
1
2
2
2
60
60
D2
: Rotation speed at beginning of deceleration [r/min]
: Deceleration torque [N·m]
Deceleration time [s]
*
*
N
N
1
2
*
*
T
T
D
D
1
2
E
E
T
*
*
t
D1
g1
g1
g1
1
t
t
1
2
[J]
[J]
T
−N
2
E
E
T
t
D2
g2
g2
g2
2
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