Automatic Operation Mode; What Is Automatic Operation Mode - Mitsubishi Electric MELSERVO-J3 Series Manual

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16. INDEXER POSITIONING OPERATION

16.7 Automatic operation mode

(1) Concept of indexer

Select the station, which is dividing the circumference (360 degrees) of the machine side into up to 255,

using 8-bit device of the next station selection 1 to 8 (RYnA to RYnE, and RY(n 2)3 to RY(n 2)5), and

execute positioning.

Set the number of stations in the parameter No.PC46.

(2) Rotation direction

There are two types of operation methods: Rotation direction specifying indexer, which is to always rotate in

the fixed direction and execute positioning to a station, and Shortest rotating indexer, which is to

automatically change the rotation direction for the shortest distance and execute positioning to a station.

In the absolute position detection system, the following restriction condition

applies for the number of gears on machine-side (parameter No.PA06 CMX)

and servo motor speed (N).

When the servo motor is operated at servo motor speed higher than the limit

value, the absolute position counter warning (AE3) occurs.

Station No.253

Station No.254

Rotation direction specifying indexer

3076.7 r/min

3276.7–CMX r/min

Station No.2

Station No.1

Station No.0

Shortest rotating indexer