IAI America ERC User Manual

Page 83

(5) Push (Push)

 Select the positioning mode or push & hold mode.

The default value is “0.”

0: Positioning mode (= Normal operation)

Other than 0: Push & hold mode [%]

 To select the push & hold mode, enter the current-limiting value for the servo

motor during push & hold operation. Enter an appropriate value up to 70% in

accordance with the actuator type.

Be sure to refer to 5.1.1, “Relationship of Push Force at Standstill and Current-Limiting Value” that specifies

the relationship of the push force to be applied to the load at standstill [kgf] on one hand, and the current-

limiting value on the other, for each actuator type.

Note: If the push force is too small, a false detection of push & hold condition may occur due to slide

resistance, etc., so exercise caution.

(6) Positioning band

(Pos. band)

 The function of the positioning band varies depending on whether the push &

hold setting in (5) is “0” or “other than 0.”

(A) Push = 0 (Positioning mode)

 In the positioning mode, enter the position-complete detection width

(distance to the target position), in [mm].

 The distance to the target position indicates the range prior to the target

position, upon entry of the actuator in which range a position complete signal
will be output.

The default value is “0.1 [mm]” (Fig. A).

(B) Push = Other than 0 (Push & hold mode)

 Enter the maximum push amount (distance from the target) in the push &

hold mode, in [mm] (Fig. B).

 If the push direction corresponds to the negative direction along the

displayed coordinate axis, add a – (minus) sign to the entered value.

Fig. A

Fig. B

Speed

(5) Push = 0

Distance to the position set in (2)

(5) Push = Other than 0

Distance to the position set in (2)

Moving distance

(6) Positioning band