Sanyo Denki SANMOTION 3E S, Instruction Manual, Page: 100 / 488

2. Specifications
2-33
2.9 Specifications for dynamic brake
2.9.1 Allowable frequency, instantaneous tolerance, decreasing the
rotation angle of the dynamic brake
■
Allowable frequency of the dynamic brake
Less than 10 times per hour and 30 times per day at maximum speed within allowable load
inertia moment.
■
Operation intervals
In basic terms, operation of the dynamic brake in six (6) minutes intervals is acceptable. If the
brake is to be operated more frequently, the motor speed must be reduced sufficiently.
Refer to the following expression to find a standard of operation:
■
If/When load inertia moment (J
L
) substantially exceeds allowable load inertia moment,
abnormal heat can generate due to dynamic brake resistance. Take precautions against
(Overheat alarm of the dynamic break) or (failure of dynamic brake resistance). Please
consult us if such a situation is evident.
Dynamic brake circuit is not included to servo amplifier RS3C30# and amplifier unit RS3D80#.
Please contact us for external dynamic brake resistor selection.
■
Instantaneous tolerance of dynamic brake
Servo amplifier model number E
RD
(J)
RS3#02A##A#/RS3#02A##L#
218
RS3#03A##A#/RS3#03A##L#
RS3#05A##A#/RS3#05A##L# 912
RS3#07A##A#/RS3#07A##L# 2000
RS3#10A##A#/RS3#10A##L#
2450
RS3#15A##A#/RS3#15A##L#
RS3#30A##L# 9384
RS3C02A##A# 1100
RS3C05A##A# 2100
RS3C10A##A# 13000
RS3C15A##L# 13000
* # = Optional number or alphabetical letter.
* RS3#01A does not have dynamic brake resistor. Shorting between motor phases as dynamic
brake.
6 minutes
(Rated rotation speed/maximum rotation speed in use)
2