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System Menu
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• Boost
The minimum current applied to the internal motor when starting the servo can be set. Since a small travel does
not start the motor, it essentially feels like the dead band was expanded. The motor can be immediately started
by adjusting the minimum current which can start the motor.
[Relationship between boost set value and servo operation]
Small
ĺ
Motor reacts to a minute current and operation becomes smooth.
Large
ĺ
Initial response improves and output torque increases. However, if the torque is too large, operation
will become rough.
• Boost ON/OFF
OFF : It is the boost ON at the time of low-speed operation.(In the case of usual)
ON : It is always the boost ON.(When quick operation is hope)
• Damper
The characteristic when the servo is stopped can be set.
When smaller than the standard value, the characteristic becomes an overshoot characteristic. If the value is
larger than the standard value, the brake is applied before the stop position.
Especially, when a large load is applied, overshoot, etc. are suppressed by inertia and hunting may occur,
depending on the conditions. If hunting (phenomena which cause the servo to oscillate) occurs even though the
Dead Band, Stretcher, Boost and other parameters are suitable, adjust this parameter to a value larger than the
initial value.
[Relationship between damper set value and servo operation]
Small
ĺ
When you want to overshoot. Set so that hunting does not occur.
Large
ĺ
When you want to operate so that braking is not applied. However, it will feel like the servo response
has worsened.
(Note) If used in the hunting state, not only will the current consumption increase, but the life of the servo will
also be shortened.
• Stretcher
The servo hold characteristic can be set. The torque which attempts to return the servo to the target position
when the current servo position has deviated from the target position can be adjusted.
This is used when stopping hunting, etc., but the holding characteristic changes as shown below.
[Relationship between stretcher and servo operation]
Small
ĺ
Servo holding force becomes weaker.
Large
ĺ
Servo holding force becomes stronger.
(Note) When this parameter is large, the current consumption increases.
• Buzzer
When the power supply of a servo is previously turned on at the time of a power supply injection without taking
transmit of a transmitter, the buzzer sound of about 2.5 Hz continues sounding from a servo.
(Even when the transmit of a transmitter is taken out previously, a buzzer sounds until the signal of a servo is
outputted normally, but it is not unusual.)
The transmitter has been turned OFF ahead of a servo power supply
The buzzer sound of about 1.25 Hz
continues sounding as servo power supply end failure alarm.
(
Do not insert or remove the servo connector while the receiver power is ON.A buzzer may
sound by incorrect recognition.
)
*
Buzzer sound is generated by vibrating the motor of a servo.
Since current is consumed and a servo generates heat, please do not operate the number more than needed
or do not continue sounding a buzzer for a long time.
66


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