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

7 POSITIONING MODULE REPLACEMENT
7 - 52
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.
: Compatible, : Partial change required
Item AD70 QD73A1
Compati-
bility
Precautions for
replacement
External power supply
+15VDC, 0.2A
-15VDC, 0.02A
--
An external power supply
terminal block is not available
because an external power
supply is not required.
External
wiring
connectors
CONT.
9-pin connector for external wiring (pin type)
17JE-23090-02(D8A) (manufactured by DDK Ltd.)
The existing external wiring can
be used without change.
Included
Not included
SERVO
15-pin connector for external wiring (pin type)
17JE-23150-02(D8A) (manufactured by DDK Ltd.)
Included
Not included
Applicable
wire size
0.3m
2
or less
External
input signal
Servo
READY
Stop signal
Near-point
dog signal
Upper limit
signal
Lower limit
signal
Speed-
position
switching
command
Positioning feedback pulse
input
(Pulse frequency)
Open collector:
100kpulse/s or less
TTL: 100kpulse/s or less
Differential: 100kpulse/s or less
(Pulse frequency)
Open collector:
200kpulse/s or less
TTL: 200kpulse/s or less
Differential: 1Mpulse/s or less
The specification has improved.
(Upward-compatibility)
Servo ON
Speed command (analog
signal)