Function Comparison - Mitsubishi Electric MELSEC-A/QnA Series Handbook

7
POSITIONING MODULE REPLACEMENT

7.6.2 Function comparison

Function comparison between the
(1)
Function
Positioning
control
Position
Two-phase
control
trapezoidal
mode
positioning
control
Major
positioning
control
Speed-position
control switch mode
JOG operation
OPR control
Multiplication setting
Electronic gear function
Deviation counter clear function
Speed change function
Current value change function
In-position function
Zero/gain adjustment
7
- 45
AD70 and the QD73A1
Description
Positioning is executed from the current position to a specified
position at a specified speed.
Positioning is executed to the address specified in
" Positioning address P1" at "
Da.2
then to the address specified in "
" Da.5 Positioning speed V2" by one positioning start signal.
Operation starts according to the positioning speed set beforehand
by one start signal, then the operation switches to position control
by Speed-position switching command signal. If the operation
stopped by Stop signal after the input of Speed-position switching
command signal, the positioning can be continued by Speed-
position mode restart signal. In addition, the positioning address
(movement amount) can be changed if it is before the input of
Speed-position switching command signal.
Positioning is executed in the specified direction at specified
speed while a JOG operation command is on. Turning on the
signal starts operation at a specified speed and speed control
operation is continued until Stop signal is input.
A workpiece is returned to an original point following an OPR start
command from a CPU module, and the current value is corrected
to an OP address after the completion of OPR.
This function multiplies the feedback pulse frequency from the
pulse generator by 4, 2, 1, or 1/2.
This function controls moving distance and speed by multiplying
command pulse output.
This function clears the accumulated pulses in the deviation
counter. When the servomotor power is turned off due to an
emergency stop during positioning, clearing the accumulated
pulses in the deviation counter prevents servomotor rotation at
power recovery.
This function forces to change speed from a program during
positioning control or JOG operation.
This function changes the current feed value to a specified value
from a sequence program on the condition other than while BUSY.
This function turns on In-position signal while the accumulated
pulse amount in the deviation counter is within the specified in-
position range. In-position signal can be used as the signal right
before positioning completion.
This function adjusts analog voltage contained in accumulated
pulses.
Da.3
Positioning speed V1",
Positioning address P2" at
Da.4
: Compatible, --: Not available
Precautions for
AD70 QD73A1
replacement
Refer to Section
7.6.6.
Refer to Section
7.6.6.
Refer to Section
7.6.6.
Refer to Section
7.6.6.
Refer to Section
7.6.6.