The Hard Limit And Soft Limit Function; Soft Limit Setting; Hard Limit Setting; Continuously Low Speed Feeding - Digital Dream DM500 User Manual

5.2.2 The Hard Limit and Soft Limit Function

The Hard Limit and Soft Limit determin the machine running size of X/Y/Z Axis.
5.2.2.1

Soft Limit Setting

The set value will trigger the limit signal.
The limit values refer to the machine coordinates, not the work piece coordinate.So only when the Machine
coordinates fixed,the soft limit can be effective.There are two soft limits on positive and negative direction each
axis.
Operation:
• Fix the Limit/Home Position of Machine coordinate.
• On the Positive direction users can set a Soft Limit;
• On the Negative direction users can set a Soft Limit.
5.2.2.1

Hard Limit Setting

There is one hard limit on one axis,the hard limit share the same limited-switch(Home switch) with
Home/Limit of Machine Coordinate on one direction.At the reverse direction,there can be set as the soft-limit.
Operation:
• Configure the home swich as the drawing shows at 2.3.2 (Page 9);
• Set the Index No. 116 value set as 2,set it as "Negative limit signal(LIMIT--)"
Notice: The Input voltage level of limit signal setting is Para Index No. 400-403 and 408-411.
5.2.3 Manually Operation of the Controller
The handheld controller can supply us 3 kinds manually positioning function,these are:Continuously low
speed feeding;Continuously high speed feeding;Manual Step Mode.
5.2.3.1

Continuously low speed feeding

Feeding to one direction at low speed.
Condition:
• Controller is in READY status;
• Operate mode is CONT.
Operation:
• Press the key
• Select and press the axis key (X+、X-、Y+、Y-、Z+、Z-、A+、A-),then the controller feed in low
speed continuously.
• keep on pressing the axis direction key,that can make it moving continuously at low speed;
• The speed can be set at "SJR" or parameter adjustment.
5.2.3.2 Continuously High speed feeding
Feeding to one direction at high speed.
Condition:
• Controller is in READY status;
• Operate mode is CONT.
and shift into low speed mode
Page -22 DM500 User's Manual