IAI MCON-C, Instruction Manual

Page: 282 / 480

272
6.2 Selecting Automatic Current Reduction Feature
When performing a complete stop in the positioning, the current flows in constant amount
(Note 1)
regardless of the size of the external force in a normal condition (without using the automatic
current reduction feature). Using the automatic current reduction feature enables to flow the
current considering the influence of the external force, that will be able to save the power
consumption when the transported load is small.
Note 1 Parameter No. 12 “Current Limit Value at Positioning Stop”
To enabled / disabled the automatic current reduction feature can be set in Parameter No. 182.
Parameter
No.
Name Unit Input range
Initial
value
182 Auto Current Adj. Select -
0: Disabled
1: Enabled
0
Shown below is a graph (example) of the current flow volume and velocity command in the
positioning operation in comparison of when the automatic current reduction feature is inactive
and when it is active.
• The automatic current reduction feature: Disabled
• The automatic current reduction feature: Enabled
Time
Current/
Ve
locity
Current Flow Volume
Velocity Command
Current Limit Value at
Positioning Stop
Time
Current/
Ve
locity
Current Flow Volume
Velocity Command
Current flow volume at stop considering external
force influence
Feature dedicated for pulse motor type
Chapter 6 Power-saving Function