R88A-CPU001S Omron, R88A-CPU001S Datasheet - Page 177

• Manufacturer Part Number: R88A-CPU001S
• Description: 1mGENERAL PURPOSE CONT.CABL.-U
• Manufacturer: Omron

Specifications of R88A-CPU001S

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

System Design and Installation
3-3
3-3-1 Regenerative Energy Calculation
■
Note In the output torque graph, acceleration in the positive direction is shown as positive, and
• The regenerative energy values for E
Servomotor output torque
• E
• E
Horizontal Axis
Servomotor operation
g1 =
g2 =
acceleration in the negative direction is shown as negative.
The Servo Drivers have internal regenerative energy absorption circuitry for absorbing
the regenerative energy produced during time such as Servomotor deceleration, and
thus preventing the DC voltage from increasing. An overvoltage error is generated,
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 produced by
changing operating patterns, and so on, or to improve the regenerative energy
absorption capacity by connecting external regeneration resistance.
N
T
t
1
Regenerative Energy Absorption
D1
, t
1
1
2
1
2
, N
, T
2
•
•
:
2
2π
60
2π
60
D2
: Rotation speed at beginning of deceleration [r/min]
: Deceleration torque [N·m]
Deceleration time [s]
• N
• N
1
2
• T
• T
D1
D2
• t
• t
+N
1
1
2
[J ] = 0.0524 • N
[J ] = 0.0524 • N
g1
and E
E
T
t
D1
g1
1
g2
are derived from the following equations.
1
2
• T
• T
T
D1
D2
• t
• t
−N
2
1
2
[J ]
[J ]
T
E
t
D2
2
g2
Chapter 3
3-37