L7C Series AC Servo Drives Quick Start Guide
Page 57 of 60
L7C Servo Drives Quick Start Guide – 1st Ed. Rev A, 11/29/2021
Step 8: Set Torque Limit Function
Tor
que Mode S
tep 8
Substep
Task
A
Set the
Torque Limit Function
Select a method for limiting the torque applied to the load Here the Analog Torque Limit does not
apply since the TRQCOM input is being used as a command and not a limit Setting the desired torque
limit registers will ensure Analog Torque command does not issue dangerous force on the load in either
the FWD or REV direction For initial testing and setup, a value less than max torque is recommended
The above example sets the torque limits to 50% of system rated torque These values can be increased
after initial commissioning by adjusting 0x3022 and 0x3023 in the Object Dictionary \ Index tab Default
values are 3000 (300%)
Option
Description
Internal Torque Limit 1 (0)
• Uses the value of 0x3022 as the Fwd direction torque limit
• Uses the value of 0x3023 as the Rev direction torque limit
Internal Torque Limit 2 (1)
Uses a constant 300% of rated motor torque as the Fwd and
Rev torque limits
External Torque Limit (2)
• Uses the value of 0x2111 as the Fwd direction torque limit
• Uses the value of 0x2112 as the Rev direction torque limit
Internal and External Torque Limit (3)
• Uses the value of 0x3022 when Digital Input P_CL is on
and the value of 0x2111 when Digital Input P_CL is off for
the Fwd direction torque limit
• Uses the value of 0x3023 when Digital Input N_CL is on
and the value of 0x2112 when Digital Input N_CL is off for
the Rev direction torque limit
Analog Torque Limit (4)
Not applicable in Torque Mode
B
Click
Next
