IAI R-unit RSEL, Instruction Manual, Page: 591 / 844

Chapter 10 Parameter
10.3 Parameter List (Driver Unit)
10-58
ME0392-4C
[Excitation Detection Type (Parameter No. 30)]
No. Name Unit Input range Default initial value setting
30 Excitation detection type －
0: Conventional mode
1: New mode 1
(For vertical mount)
2: New mode 2
(For horizontal mount)
1
After turning the power ON, the first servo ON detects excitation. The new mode makes this
operation smooth and quiet.
For example, if the actuator is mounted vertically, setting new mode 2 (for horizontal mount)
may cause the slider or rod to fall during excitation detection operation. Be sure to mount in the
designated direction. Set new mode 1 if anything falls even if mounted in the designated
direction.
For simple absolute specification and RCP5 Series, it detects excitation upon home return
motion complete.
[Pole Sense Type (Parameter No. 30)]
No. Name Unit Input range Default initial value setting
30 Pole sense type －
0: Current control
1: Distance control 1
2: Distance control 2
1
After turning the power ON, the first servo ON detects polarity. The operation method is set at this
time.
There is normally no need to make changes.
Stepper motor specification only
24V AC servo motor specification only
10.3 Parameter List (Driver Unit)
ME0392-4C
10-59
[Velocity Loop Proportional Gain (Parameter No. 31)]
No. Name Unit Input range Default initial value setting
31 Velocity loop proportional
gain
－ 1 to 99,999,999 In accordance with actuator
This parameter determines the response of the velocity loop. The increased set value improves
tracking of speed command. The higher the setting value, the greater the load inertia becomes.
If it is too high, overshoot and oscillation, as well as vibration in the mechanical system may
occur.
For the conditions for using this item in the stepper motor specification, refer to [Selection and
use of Velocity Loop Proportional Gain and Velocity Loop Integral Gain] at the bottom of the
following page.
When the setting value is high (overshoot)
When the setting
value is low
Time
Velocity