GSK DA98E Series, User Manual

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Chapter 7 Power-on and Operation
71
D: Speed Operating Mode
（
1
）
Connect BUS1 and BUS2 so that the input control signals Servo Enabled (SON), Speed
Selection 1 (SC1) and Speed Selection 2 are OFF.
（
2
）
Turn on the control circuit (the main circuit is not switched on for the time being). The
display of the drive unit is on. If an alarm is given, check the wiring in order to ensure that
Ethernet can be initialized successfully.
（
3
）
Set the “Selection of control mode” (No.4 Parameter) to position operating mode (“1”). Set
No.24 through 27 parameters as required.
（ 4 ） Turn on the main circuit.
（
5
）
Make sure there is no alarm, set Servo Enabled (SON) to ON. Now the motor is excited
and operates in Internal Speed 1 mode.
（
6
）
Change the states of the input signals SC1 and SC2 so that the motor runs by following
the commands.
7.3 Adjustments
Attention
z Make sure the parameters are set correctly as incorrect parameter configuration may
cause equipment fault and accidents.
z It is advised to make no-load adjustments before the equipment is loaded.
1) Basic Gain Adjustment
z Speed Control
（
1
）
[Proportional gain of speed] (No.5 parameter) shall be set as big as possible provided that
no vibration occurs. Generally the setting of [Proportional gain of speed] shall increase
with load inertia.
（
2
）
[Integral time constant of speed] (No.6 parameter) shall be set as small as possible
depending on the given conditions. If the setting of [Integral time constant of speed] is too
small, the response speed will be increased but it tends to cause vibration. Therefore it
shall be set as small as possible provided that no vibration occurs. If the setting of
[Integral time constant of speed] is too big, the speed will change abruptly when the load
changes. Generally the setting of [Integral time constant of speed] shall increase with load
inertia.