Mitsubishi Electric MELSEC-L LD75D, Руководство пользователя

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(2) [Md.21] Machine feed value
Item Description
Storage details
The address of the current position according to the machine coordinates will be stored. (Different from the actual motor position
during operation)
Note that the current value changing function will not change the machine feed value.
Under the speed control mode, the machine feed value is constantly updated always, irrespective of the parameter setting.
The value will not be cleared to "0" at the beginning of fixed-feed control.
Even if "degree" is selected as the unit, the addresses will not have a ring structure for values between 0 and 359.99999 degrees.
• Machine coordinates: Characteristic coordinates determined with machine
• Update timing: 0.9ms
Reading the monitor
value
■ Monitoring is carried out with a hexadecimal display.
Default value 0000H
Storage buffer memory
address
Axis 1: 802, 803
Axis 2: 902, 903
Axis 3: 1002, 1003
Axis 4: 1102, 1103
A B C D
A B C D
E F G H
E
R
F G H
b15 b12 b4 b0 b8
E F G H
b31 b28 b20 b16 b24
A B C D
Monitor
value
Low-order buffer memory Example) 800
High-order buffer memory Example) 801
Sorting
Decimal integer
value
Converted from
hexadecimal to decimal
-1
m
-5
inch
-5
degree
0
pulse
n
Unit
n
-2
mm/min
-3
inch/min
-3
degree/min
0
pulse/s
Unit
Unit conversion table
Unit conversion
Actual value
(High-order buffer memory) (Low-order buffer memory)
R 10
n
) Md.20
)
Md.21
Unit conversion table
)
) Md.22
Current feed value
Md.20
Machine feed value
Md.21
Feedrate Md.22