5 Adjustments
5-44
- Friction Compensation
This function compensates for changes in the following conditions.
• Changes in the viscous resistance of the lubricant, such as the grease, on the sliding
parts of the machine
• Changes in the friction resistance resulting from variations in the machine assembly
• Changes in the friction resistance due to aging
Conditions to which friction compensation is applicable depend on the tuning mode.
The friction compensa- tion setting in F408.3 applies when the mode is 0 or 1. Tuning
Mode = 2 and Tuning Mode = 3 are adjusted with the friction compensation function
regardless of the friction compensation setting in P408.3.
Mode
Friction
Compensation
Selecting
Tuning Mode = 0
Tuning Mode = 1
Tuning Mode = 2
Tuning Mode = 3
Pn408
n.0
口口口
[Factory
setting]
Adjusted without the
friction compensation
function
Adjusted without the
friction compensation
function
Adjusted with the
friction compensation
function
Adjusted with the
friction compensation
function
n.1
口口口
Adjusted with the
friction compensation
function
Adjusted with the
friction compensation
function
- Feedforward
If Pn140 is set to the factory setting and the tuning mode setting is changed to 2 or 3,
the feedforward gain (Pn109), speed feedforward (VFF) input, and torque feedforward
(TFF) input will be disabled.
Set Pn140.3 to 1 if model following control is used together with the speed feedforward
(VFF) input and torque feedforward (TFF) input from the PC or PLC...etc.
Parameter
Function
When Enabled
Classification
Pn140
n.0
口口口
[Factory
setting]
Model following control is not used together with the
speed/torque feedforward input.
Immediately
Tuning
n.1
口口口
Model following control is used together with the
speed/torque feedforward input.
Refer to
8 MECHATROLINK-III Commands
for details.
• Model following control is used to make optimum feedforward settings in the
DRIVER when model following control is used with the feedforward function.
Therefore, model following control is not normally used together with either
the speed feedfor- ward (VFF) input or torque feedforward (TFF) input from
the PC or PLC...etc. However, model following control can be used with the
speed feedforward (VFF) input or torque feedforward (TFF) input if required.
An improper feedforward input may result in over- shooting.
Summary of Contents for LECYU Series
Page 30: ...1 Outline 1 9 1 4 3 Three phase 200 V LECYU2 V9 Models ...
Page 65: ...3 Wiring and Connection 3 11 3 Wiring Example with DC Power Supply Input DRIVER ...
Page 92: ...3 Wiring and Connection 3 38 External Dimensions Units mm 1 FN Type by Schaffner EMC Inc ...
Page 93: ...3 Wiring and Connection 3 39 2 FN Type ...
Page 143: ...4 Operation 4 44 ...