5-69
5-6-7 Selecting for External Regeneration Resistor
In applications where a high inertia load is stopped rapidly, motor will generate an energy, which is regenerate
power back to the servo drive (Regeneration energy)
(1) Short deceleration time with heavy loads.
(2) In vertical load applications.
(3) High inertia rotary load applied to the motor shaft.
Part of the regeneration power will be absorbed by the drive main smoothing capacitors
If there is too much regeneration power which can not be totally absorbed by the capacitor then regeneration
resistors can be used to absorb the excess power.
Built-in Regeneration Resistor specification is as below table.
Built-in Regeneration
Resistor Specifications
Drive Model
Resistance(
Ω
) Power(W)
The Regeneration
Power(W) absorbed by
the built in Resistor
(Average Power)
Minimum allowed
Resistance Value
(
Ω
)
TSTA-15 50
60
24
50
TSTA-20 50
60
24
41
TSTA-30 25
60
24
23
TSTA-50 20 200
80
15
TSTA-75 12.5 200
80
9
Built-in Regeneration Resistor
The Regeneration Resistor which is built-in this device can absorb the Regeneration Power from
acceleration and deceleration running or Vertical Loading.
But for applications that the large load inertia causes the motor shaft to rotate, an external regeneration
Resistor must be installed to protect the servo drive otherwise the servo drive can not function correctly.
Select the resistor according to the specified values and if installing regeneration resistors in a parallel way to
have more power absorb capacibility.
Ensure that the total resistance value does not smaller than the minimum resistance listed in the
table above.
Содержание TSTA Series
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