Bfm#37] Operation Parameter - Mitsubishi Electric MELSEC-F Series User Manual

FX -1PG User's Manual
3U

7.3.15 [BFM#37] Operation parameter

Set basic conditions such as the unit system.
BFM No.
High order Low order
16bit 16bit
- #37
Point
When the positioning parameter is used, use the operation parameter (BFM#3).
b1, b0: System of units
Units for positioning control are set as follows.
Bit status
b1 b0
0 0
0 1
1 0
1 1
Conversion of the unit system
The following relationship exists between the motor system unit and the machine system unit, and the pulse
conversion is executed automatically.
• Travel distance (PLS) = Travel distance (μm, mdeg, 10
Feed rate
• Operation speed (Hz) = Operation speed (cm/min, 10deg/min, inch/min) × Pulse rate × 10
Point
• When the unit system is set to the machine system unit or the combined system unit, settings of the pulse
rate and the feed rate are necessary.
• When the operation speed is executed in the machine system unit, set the value such that its pulse
converted equivalent is within the motor system unit (Hz) range or the combined system unit (Hz) range.
Concept of mechanical system of units and how to use an electronic gear
For concept of mechanical system of units and how to use an electronic gear, refer to Subsection 7.3.3.
b3, b2: Interrupt input setting
The interrupt signals used for interrupt inputs in the interrupt 1-speed positioning operation, external
command positioning operation, interrupt stop operation or interrupt 2-speed positioning operation are set.
Bit status
b3 b2
0 0
0 1
1 0
1 1
Refer to the following.
System of
Position unit
units
Motor system PLS
μm
Machine
mdeg
system
-4
10 inch
μm
Combined
mdeg
system
-4
10 inch
Interrupt input 0 Interrupt input 1
DOG STOP
DOG
INT0 STOP
INT0
Description
Speed unit
The pulse number is used as the standard for the position
Hz
command and the operation speed.
cm/min
μm, mdeg, and 10
10deg/min
position command and the speed.
inch/min
Combined units are used, such as the machine system unit for
Hz the position command and the motor system unit for the speed
command.
-4
inch) × Pulse rate × Position data multiplier ÷
→ For the command errors, refer to Subsection 6.9.1.
INT1
INT1
7 Buffer Memory
7.3 Positioning Parameters
R/W Default
R/W H0000
Remarks
-4
inch is used as the standard for the
4
÷ Feed rate ÷ 60
1
2
3
4
5
6
7
8
9
10
65