15.ABSOLUTE POSITION DETECTION SYSTEM

(c)To detect the ABS time-out warning (AL.E5) at the servo amplifier, the time required for the ABS request signal to go OFF after it has been turned ON (ABS request time) is checked. If the ABS request remains ON for longer than 1s, it is regarded that an fault relating to the ABS request signal or the send data ready signal has occurred, and the ABS communication error is generated. The ABS communication error occurs if the ABS time-out warning (AL.E5) is generated at the servo amplifier due to an ABS request OFF time time-out.

ON

ABS transfer mode

OFF

ON

ABS request

OFF

ON

Send data ready

OFF

ABS communication YES

errorNO

1s

The signal does not go OFF

15.10.2 Error resetting conditions

Always remove the cause of the error before resetting the error.

Name

Output coil

AD71

1PG

Servo status

Resetting condition

ABS communication error

Y49

Y11

Ready (RD) signal off

Reset when servo-on PB (X36)

 

 

 

 

signal turns off.

ABS checksum error

Y4A

Y12

Ready (RD) signal on

For AD71

 

 

 

 

Reset when servo-on PB (X36)

 

 

 

 

signal turns from off to on.

 

 

 

 

For FX-1PG

 

 

 

 

Reset when servo-on PB (X36)

 

 

 

 

signal turns off.

ABS coordinate error

Y4B

 

Ready (RD) signal on

Reset when servo-on PB (X36)

 

 

 

 

signal turns from off to on after a

 

 

 

 

motion to ( ) coordinate is made by

 

 

 

 

jog operation.

Servo alarm

Y48

Y10

Ready (RD) signal on

Reset when alarm reset PB turns

 

 

 

 

on or power switches from off to on.

15 - 66

Page 317
Image 317
Mitsubishi Electronics MR-J2S- A instruction manual Error resetting conditions