Settings
11.3.1 Setting User Constants
11.1 Characteristics when Shipped
The speed reference (feed speed) characteristics when shipped are as outlined below.
Speed Reference Motor Speed Characteristics
Conditions: No load
Rotation speed (r/min.)
+1500
—204800
11.2 Resetting
—1500
Feed speed
204800 (reference units/s)
If settings must be reset because of application or usage conditions, reset them in according to
Chapter 6" MECHATROLINK Communication".
11.3 Adjusting Servo Performance
11.3.1 Setting User Constants
■ Position Loop Gain (Cn-001A)
Position loop gain is ideally determined by the specifications of the equipment, but initially
set a level lower than the desired value. (The factory setting is 40 (1/s).)
■ Load Inertia (Cn-0003)
Set the load inertia for the moment of inertia ratio on motor shaft. (This constant is factory set
to 100 (%), which is equivalent to the motor inertia.)
11 -2
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