Setting Method - Mitsubishi Electric MELSERVO-J5 MR-J5 Series User Manual

Setting method

• The rated torque unit is used as a default unit for the torque limit which differs from the setting for MR-J4-
_A_ servo amplifiers. To change the unit to the maximum torque unit, change the setting in [Pr. PC50.0
Torque limit unit change].
Page 100 Torque command unit selection function
Servo parameter setting
The maximum torque is always limited by the values of [Pr. PA11 Forward rotation torque limit] and [Pr. PA12 Reverse rotation
torque limit] during operation.
Servo Symbol
parameter
PA11 TLP
PA12 TLN
PC35 TL2
Analog torque limit
The relationship between the applied voltage of TLA (Analog torque limit) and the torque limit value of the servo motor is as
follows. The torque limit value relative to the voltage varies by approximately 5 % between motors. At the voltage of less than
0.05 V, torque may vary as it may not be limited sufficiently. Therefore, use this function at the voltage of 0.05 V or more.
Maximum
torque
0
0 0.05
TLA applied voltage [V]
TLA applied voltage vs torque limit value
4 APPLICABLE FUNCTIONS
266
4.10 Torque limit [A]
Name
Forward rotation torque limit
Reverse rotation torque limit
Internal torque limit 2
±5 %
Outline
Set the servo parameter to limit the torque of the servo motor for CCW power running
or CW regeneration, or to limit the thrust of the linear servo motor for positive
direction power running or negative direction regeneration.
Set the servo parameter to limit the torque of the servo motor for CW power running
or CCW regeneration, or to limit the thrust of the linear servo motor for positive
direction power running or negative direction regeneration.
Set the parameter for limiting the torque of the servo motor or the thrust of the linear
servo motor.
When the internal torque limit selection signal is turned on, [Pr. PA11] or [Pr. PA12]
are compared with the internal torque limit 2 and the lower one will be enabled.
Servo amplifier
TL
24 V DC
DICOM
P15R
2 kΩ
2 kΩ TLA
LG
SD
Connection example
*1