Setting Method - Mitsubishi Electric MELSERVO-J5 User Manual
Ac servo system
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Also See for MELSERVO-J5:
- User manual (478 pages) ,
- Sample screen manual (128 pages) ,
- Introduction manual (112 pages)
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Setting method
• The rated torque unit is used as a default unit for the torque limit, which differs from the setting for the MR-
J4-_A_. To change the unit to the maximum torque unit, change the setting in [Pr. PC50.0 Torque limit unit
change].
Page 131 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
±5 %
0
0
0.05
TLA applied voltage [V]
TLA applied voltage vs torque limit value
Name
Outline
Forward rotation torque
Set the servo parameter to limit the torque of the servo motor for CCW power running
limit
or CW regeneration, or to limit the thrust of the linear servo motor for positive direction
power running or negative direction regeneration.
Reverse rotation torque
Set the servo parameter to limit the torque of the servo motor for CW power running or
limit
CCW regeneration, or to limit the thrust of the linear servo motor for positive direction
power running or negative direction regeneration.
Internal torque limit 2
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.
2 kΩ
2 kΩ
Servo amplifier
TL
24 V DC
*1
DICOM
P15R
TLA
LG
SD
Connection example
4 APPLICABLE FUNCTIONS
345
4.11 Torque limit [A]
4
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