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Instructions
The existing analog output positioning module AD70/A1SD70 is replaced with the Q Series QD73A1.
The existing AD70/A1SD70 external device connection connectors can be used, so there is no need to
change the wiring.
However, the connector orientation will be reversed when replacing the A1SD70.
The existing AD70/A1SD70 required an external 15 V DC ± current power supply, but the QD73A1 does not
need an external power supply.
(1) System configuration example
(2) Wiring for external device connection
Existing A Small Type Series
A Small
Type
CPU
A1SD70
A Large
Type
CPU
AD70 A Large Type
Series module
A Small Type
Series module
Q Series after replacement
Q
CPU
QD73A1
Q Series
module
Existing A Large Type Series
CPU module
Sequence
program
Electronic
gears
Deflection
counter
D/A
converter
Analog
voltage
Multiplication
Command pulse
Setting
data
Current
value
Data read/write
Parameter data
Positioning data
Zero return parameters
Positioning module AD70, A1SD70, QD73A1
Drive module
Servo motor
Speed
instruction
Interface
Feedback pulse
*1
*1
PLG
M
*2
Feedback pulse
Servo
amplifier
5.3 Replace analog output positioning module (AD70/A1SD70) with Q Series
Improve functionality of A Series analog output positioning module AD70, A1SD70 (upward
compatibility)
Use the Q Series module positioning unit to replace without concern of the effect onto the machine
system.
Solution and Benefit
The feedback pulse train from the pulse generator (PLG) can pass
through the drive unit (as shown with *1), or directly output to QD73A1
(as shown with *2). The route depends on the servo motor being used.
Refer to the manual for the servo motor and drive module being used
for information on selecting method *1 or *2.
118
5.3 Replace analog output positioning module (AD70/A1SD70) with Q Series
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Содержание Artisan MELSEC-A
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