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User Constant Settings and Functions
5 -80
5.6 Selecting a Regenerative Resistor
When the Servomotor is driven in generator mode, power isreturned to the Servopack. This iscalled
regenerative power. The regenerative power is absorbed by charging the smoothing capacitor, but
whenthechargeableenergyisexceeded,theregenerativepowerisfurther consumedby theregenera-
tive resistor.
The Servomotor is driven in regeneration (generator) mode in the following circumstances:
D
While decelerating to a stop during acceleration and deceleration operation.
D
With a load on the vertical axis.
D
During continuousoperation with the Servomotor rotated from the load side (negative load).
The capacity of the Servopack’s built-in regenerative resistor is sufficient for short-time operation
only, such as for the deceleration stop period. Operation under a negative load is not possible.
If the regenerative power exceeds the processing capacity of the Servopack, then install an external
regenerativeresistor.ThefollowingtableshowsthespecificationsoftheServopack’sbuilt-inresistor
and the amount of regenerative power (average values) that it can process.
Applicable Servopacks
Specifications of
Built-in Resistor
Regenerative
Power
Processed by
Minimum
Allowable
Applicable Servopacks
Resistance
(
W
)
Capacity
(W)
Processed by
Built-in
Resistor*
1
(W)
Allowable
Resistance
(
W
)
Single-phase
100 V
SGDH-A3BE to -02BE
--
--
--
40
Single-phase
200 V
SGDH-A3AE to -04AE
--
--
--
40
200 V
SGDH-08AE-S
50
60
12
40
SGDH-15AE-S
25
140
28
20
Three-phase
200 V
SGDH-05AE to -10AE
50
60
12
40
200 V
SGDH-15AE
30
70
14
20
SGDH-20AE
25
140
28
12
SGDH-30AE
12.5
140
28
12
SGDH-50AE
8
280
56
8
SGDH-60AE
(6.25)
*2
(880)
*2
(180)
*2
5.8
SGDH-75AE to -1EAE
(3.13)
*3
(1760)
*3
(350)
*3
2.9
Three-phase
400 V
SGDH-05DE to -15DE
108
70
14
73
400 V
SGDH-20DE, -30DE
45
140
28
44
SGDH-50DE
32
180
36
28
SGDH-60DE to -75DE
(18)
*4
(880)
*4
(180)
*4
18
SGDH-1ADE to -1EDE
(14.25)
*5
(1760)
*5
(350)
*5
14.2
5
AUDIN - 7 bis rue de Tinqueux - 51100 Reims - France - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : [email protected]