Instruction manual

5 - 7

5. OPERATION AND FUNCTIONS

When the FLS or RLS is OFF at the servo-on, the magnetic pole detection is carried out as follows:

Moves to any magnetic pole detection

start position at the same time as the servo-on

Magnetic pole

detection start position

Servo-on position

RLS FLS

(Note)

Magnetic pole detection complete position

Returns to the magnetic pole detection start position after several reciprocating operation,

and changes to the servo lock status after the completion of magnetic pole detection.

At this time, there may be a gap, approximately a quarter of the pitch against magnetic pole, from the start position.

Note. For the pitch against magnetic pole, refer to (1) (b) Note 2 of this section.

(2) For the absolute position linear encoder

POINT

If a gap is generated to the positional relationship between the linear encoder

and the linear servo motor when using the absolute position linear encoder,

carry out the magnetic pole detection again.

Carry out the magnetic pole detection referring the following procedure.

(a) Set the parameter No. PS01 (Linear function selection 1) to "

1 (Magnetic pole detection always

valid)".

Parameter No. PS01

Magnetic pole detection always valid (initial value)

(b) Execute the magnetic pole detection. (Refer to (1) (a) and (b) of this section)

0 (Magnetic pole detection not valid)" after the normal

completion of magnetic pole detection.

Parameter No. PS01

Magnetic pole detection invalid

By making the magnetic pole detection function invalid with the parameter No. PS01 after the magnetic

pole detection, the magnetic pole detection for each power-on will be unnecessary.