Mitsubishi FX2N-10GM Hardware / Programming Manual page 86

FX Series Positioning Controllers
Concept of mechanical system of units
When PARA. 0 (system of units) is set to "0" or "2", the mechanical system of units ("mm",
"deg", "inch", etc.) is selected. At this time, there is no parameter to select either one among
"mm", "deg", "inch", etc. However, because all of the positioning parameters as well as the
positioning data and the speed data used in the positioning program adopt one same unit, the
same pulse output is acquired without regard to the unit as far as the set value is equivalent.
Example:
Condition
Pulse rate
Feed rate
Minimum command unit
Electronic gear in servo amplifier :1/1
When you set values in "mm"
In a positioning operation with the movement quantity of 100 [×10
speed of 6 [cm/min], the following pulse output is given.
Generated pulse quantity= Movement quantity
Pulse frequency
*1 The unit is aligned during calculation. 1 mm = 10
When you set values in "deg"
In a positioning operation with the movement quantity of 100 [×10
speed of 6 [deg/min], the following pulse output is given.
Generated pulse quantity= Movement quantity
Pulse frequency
*2 The unit is aligned during calculation. 1 deg = 10
When you set values in "inch"
In a positioning operation with the movement quantity of 100 [×10
speed of 6 [inch/min], the following pulse output is given.
Generated pulse quantity= Movement quantity
Pulse frequency
*3 The unit is aligned during calculation. 1 inch = 10
:4,000 [PLS/REV]
:100 [µm/REV, mdeg/REV, ×10
:3 (The movement quantity is regarded as "10
-4
deg" or "10
-3
= 100 [× 10 mm]/100 [µm/REV] x 4,000 [PLS/REV]
= 4,000 [PLS]
*1
= Operation speed
= 6 [cm/min] × 10 /60/100 [µm/REV] × 4,000 [PLS/REV]
4
= 40,000 [Hz]
deg]/100 [mdeg/REV] × 4,000 [PLS/REV]
-3
= 100 [x 10
= 4,000 [PLS]
*2
= Operation speed
= 6 [deg/min] × 10 /60/100 [mdeg/REV] × 4,000 [PLS/REV]
4
= 40,000 [Hz]
-4
= 100 [× 10 inch]/100 [× 10
= 4,000 [PLS]
*3
= Operation speed
4
= 6 [inch/min] x 10 /60/100 [× 10
= 40,000 [Hz]
-1
minch/REV]
inch".)
× Pulse rate
*1 *1
/ Feed rate
× Pulse rate
*1
/ Feed rate
µm, 1 cm = 10
3
× Pulse rate
*2 *2
/ Feed rate
× Pulse rate
*2
/ Feed rate
3
mdeg, 1 min = 60 s
× Pulse rate
*3 *3
/ Feed rate
minch/REV] × 4,000 [PLS/REV]
-1
× Pulse rate
*3
/ Feed rate
minch/REV] × 4,000 [PLS/REV]
-1
3
minch, 1 min = 60 s
Parameters 4
-3
mm","10
-3
mm] and the operation
µm, 1 min = 60 s
4
-3
deg] and the operation
-4
inch] and the operation
4-10
-3