Interface Specifications Comparison With External Devices - Mitsubishi Electric MELSEC-A/QnA Series Handbook

7
POSITIONING MODULE REPLACEMENT

7.6.5 Interface specifications comparison with external devices

For the external interface specifications, the following shows the differences between the AD70 and the
QD73A1.
Item
External power supply
CONT.
External
wiring
SERVO
connectors
Applicable
wire size
Servo
READY
Stop signal
Near-point
dog signal
Upper limit
External
signal
input signal
Lower limit
signal
Speed-
position
switching
command
(Pulse frequency)
Positioning feedback pulse
input
Differential: 100kpulse/s or less
Servo ON
Speed command (analog
signal)
AD70
+15VDC, 0.2A
-15VDC, 0.02A
9-pin connector for external wiring (pin type)
17JE-23090-02(D8A) (manufactured by DDK Ltd.)
Included
15-pin connector for external wiring (pin type)
17JE-23150-02(D8A) (manufactured by DDK Ltd.)
Included
2
0.3m or less
(Pulse frequency)
Open collector:
100kpulse/s or less
TTL: 100kpulse/s or less
Differential: 1Mpulse/s or less
Compati-
QD73A1
--
Not included
Not included
Open collector:
200kpulse/s or less
TTL: 200kpulse/s or less
: Compatible, : Partial change required
Precautions for
bility replacement
An external power supply
terminal block is not available
because an external power
supply is not required.
The existing external wiring can
be used without change.
The specification has improved.
(Upward-compatibility)
7
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