IAI America ACON-CG - Manual (Page 141)

127
8. Parameters
z Current-limiting value during home return (No. 13 ODPW)
The factory setting conforms to the standard specification of the actuator.
z Speed override (No. 46 OVRD)
Use this parameter when moving the actuator at a slower speed to prevent danger when the system is initially
started for test operation.
When move commands are issued from the PLC, the moving speed set in the “Speed” field of the position table
can be overridden by the value set by parameter No. 46.
Actual moving speed = [Speed set in the position table] x [Value of parameter No. 46] ÷ 100
Example) Value in the “Speed” field of the position table500 (mm/s)
Value of parameter No. 46 20 (%)
Under the above settings, the actual moving speed becomes 100 mm/s.
The minimum setting unit is “1 [%],” while the input range is “1 to 100 [%].” The factory setting is “100 [%].”
(Note) This parameter is ignored for move commands from the PC and teaching pendant.
z Default direction of excited-phase signal detection (No. 28 PHSP)
When the servo is turned on for the first time after the power has been input, the controller performs magnetic-
pole phase detection. This parameter defines the direction of this detection.
This parameter need not be changed in normal conditions. The setting may have to be changed, however, when
the actuator has generated a magnetic pole non-confirmation error. Should this error occur, one way to correct
the abnormal condition is to change the direction set in parameter No. 28.
If you wish to change the default setting of this parameter, contact IAI beforehand.
z Excited-phase signal detection time (No. 29 PHSP)
When the servo is turned on for the first time after the power has been input, the controller performs magnetic-
pole phase detection. This parameter defines the time needed to complete one step of this detection operation.
The factory setting is “128 [msec].”
This parameter need not be changed in normal conditions. The setting may have to be changed, however, when
the actuator has generated a magnetic pole non-confirmation error. Should this error occur, one way to correct
the abnormal condition is to change the detection time set in parameter No. 29.
If you wish to change this parameter, contact IAI beforehand.
z Pole sensing type (No. 30 PHSP)
When the servo is turned on for the first time after the power has been input, the controller performs magnetic-
pole phase detection. Parameter No. 30 defines the method to be employed to perform this detection.
This parameter need not be changed in normal conditions, so the customer is advised not to change the default
setting.
Definition of setting:
0 (Current suppression method)
1 (Distance suppression method)
The factory setting is “1 [Distance suppression method].”
z Safety speed (No. 35 SAFV)
This parameter defines the feed speed to be applied during manual operation.
The factory setting is “100 [mm/sec].”
To change this speed, set an optimal value in parameter No. 35.
Take note that the maximum speed is limited to “250 [mm/s]” and that you should set a speed not exceeding this
value.
The home-return torque becomes higher as the value gets larger.
This does not usually need a change, however, it may be necessary to make the value larger in Parameter
No. 13 when the home-return operation completes before reaching the proper position due to increase of
slider resistance depending on the way to mount or the condition of load in vertical oriented mounting.
Setting Reference: Setting = 120% (when direction of home return is upwards) to initial setting or 80%
(when direction of home return is downwards)