Panasonic AFP7MC16EC, User Manual

Page: 294 / 504

Supplementary Functions
13-8

Operation of movement amount automatic check function
The movement amount automatic check function is activated by the following procedure
during all operations.
①
Stores command values for AMP in FP7 MC Unit simultaneously when starting an operation for each
communication period.
②
Compares the previous command value (stored in FP7 MC Unit) and the current value after unit
conversion for each communication period, and checks whether the difference (deviation) exceeds the set
movement check value or not.
③
Stores the current value held by FP7 MC Unit within FP7 MC Unit.
④
Subsequently, repeats the above
②
and
③
.

Position deviation monitor
The value (deviation) calculated by the movement amount automatic check function can be
confirmed by a ladder program. For monitoring the position deviation, the following unit
memory area is used.
● :
Available, -: Not available
Axis
number
Unit
memory no.
(Hex)
Name Description R W
1
UM 0264E
-UM 0264F Position
deviation
Stores the difference value between the value of the
position specified in FP7 MC Unit and the value of the
position fed back from the amplifier.

-
(Note): The above unit memory numbers are those for the axis number 1.