YASKAWA SGMPS - 5.8 Limiting Torque

5 Operation
5.8.1 Internal Torque Limit
5-60
5.8 Limiting Torque
The SERVOPACK provides the following four methods for limiting output torque to protect the machine.
5.8.1 Internal Torque Limit
This function always limits maximum output torque by setting values of following parameters.
The setting unit is a percentage of the rated torque.
Note 1. Too small a torque limit setting will result in insufficient torque during acceleration and deceleration.
2. The maximum torque of the servomotor is used whenever the value exceeds the maximum torque is set.
Trace Waveform of SigmaWin+
Note: The waveform reverses in case of analog monitor (CN5) output.
Limiting Method
Description
Reference
Section
Internal torque limit
Always limits torque by setting the parameter. 5.8.1
External torque limit
Limits torque by input signal from the host controller. 5.8.2
Torque limiting by analog
voltage reference
Assigns a torque limit by analog voltage reference. 5.8.3
External torque limit + Torque
limiting by analog voltage ref-
erence
Combines torque limiting by an external input and by analog volt-
age reference.
5.8.4
Pn402
Forward Torque Limit
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 800 1% 800 Immediately
Setup
Pn403
Reverse Torque Limit
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 800 1% 800 Immediately
Setup
Speed
Position
Torque
Speed
Position
Torque
Speed
Maximum torque
t
Speed
Pn403
Pn402
Limiting torque
t
No Internal Torque Limit
(Maximum Torque Can Be Output)
Internal Torque Limit