Mitsubishi Electric MELSERVO-J4 series Instruction Manual page 489

17. APPLICATION OF FUNCTIONS
(4) Rotation direction setting
Rotation directions can be different among a controller command, master axis, and slave axes. To align
the directions, set [Pr. PA14] referring (4) of this section. Not doing so can cause such as an overload
due to a reverse direction torque against machine system rotation direction.
Controller
[Pr. PA14]
Master axis
0 or 1 (Note)
Slave axis 1
Slave axis 2
Slave axis 3
Note. Setting "1" will reverse the polarity.
Fig. 17.1 Rotation direction setting of master and slave axes with torque command method for an
example of one master axis and three slave axes
No. Symbol
PA14 *POL Rotation direction selection
1. For master axis
Select a servo motor rotation direction of master axis to SSCNET controller command.
0: Servo motor CCW rotation in positioning address increase direction
1: Servo motor CW rotation in positioning address increase direction
2. For slave axis
Select servo motor rotation direction to a command from master axis.
0: Torque command polarity from master axis
1: Reverse of torque command polarity from master axis
+
POL Position control
-
[Pr. PA14]
POL
0 or 1 (Note)
[Pr. PA14]
POL
0 or 1 (Note)
[Pr. PA14]
POL
0 or 1 (Note)
Table 17.1 Rotation direction setting parameter
+
Speed control
-
S
Name and function
17 - 14
+
Current control
-
+
Current control
-
+
Current control
-
+
Current control
-