Mitsubishi Electric MELSERVO-J2-Super Series Instruction Manual page 65

3. CC-Link COMMUNICATION FUNCTIONS
Signal name
Internal torque limit
selection
Proportion control
Gain changing
Position/speed specifying
system selection
Absolute value/incremental
value selection
Description
Turning RY(n+2)6 OFF makes the torque limit value of
parameter No. 28 (internal torque limit 1) valid, and
turning it ON makes that of parameter No. 29 (internal
torque limit 2) valid. (Refer to Section 3.4.4)
When RY(n+2)7 is turned ON, the speed amplifier is
switched from the proportional integral type to the
proportional type.
If the servo motor at a stop is rotated even one pulse by an
external factor, it develops torque in an attempt to
compensate for a position shift. When the shaft is locked
mechanically after Movement finish (RXnC) is turned OFF,
for example, turning Proportion control (RY(n+2)7) ON as
soon as Movement finish (RXnC) turns OFF allows control
of unnecessary torque developed in an attempt to
compensate for a position shift.
When the shaft is to be locked for an extended period of
time, turn Internal torque limit selection (RY(n+2)6) ON
simultaneously with Proportion control (RY(n+2)7) to make
the torque not more than the rated torque using Internal
torque limit 2 (parameter No. 29).
When RY(n+2)8 is turned ON, the load inertia moment
ratio changes to parameter No. 64 (ratio of load inertia
moment to servo motor inertia moment 2), and the
corresponding gain values change to the values obtained by
multiplying parameter No. 65 to 67.
Select how to give a position command/speed command.
(Refer to Section 3.6.3.)
OFF: Remote input-based position/speed specifying system
Specifying the point table No. with Point table No.
selection (RYnA to RYnE) gives a position
command/speed command.
ON : Remote register-based position/speed specifying
system
Setting the instruction code to the remote register
(RWwn+4 to RWwn+6) gives a position
command/speed command.
Using parameter No. 41, select the instruction code
to be set.
RY(n+2)B is made valid when the remote register-based
position/speed specifying
Position/speed specifying system selection (RY(n+2)A) and
the absolute value command system is selected in
parameter No. 0. Turn RY(n+2)B OFF or ON to select
whether the set position data is in the absolute value
command system or incremental value command system.
OFF: Position data is handled as an absolute position.
ON : Position data is handled as an incremental value.
system is selected with
3 - 16
Device No.
Remarks
1 station 2 stations
occupied occupied
RY(n+2)6
(Note 1)
RY(n+2)7
(Note 1)
(Note 2)
RY(n+2)8
(Note 1)
RY(n+2)A
RY(n+2)B