10.1  Connection to Host Controller
10-7
10.1.5 Connection to MITSUBISHI’s AD72 Positioning Module 
(Multi-Winding Drive Unit in Speed Control)
∗1.
The ALM signal is output for about five seconds after the control power is turned ON. Take this into consideration 
when designing the power ON sequence. Also, use the ALM signal to actuate the alarm detection relay 1Ry to stop 
the main circuit power supply to the SERVOPACK and converter.
∗2.
Pin numbers are the same both for X axis and Y axis.
∗3.
Connect the shielded wire to the connector shell.
∗4.
 represents twisted-pair wires.
∗5.
This connection is to adjust the phase of the encoder pulse output.
Note 1. Only the signals that are related to the multi-winding drive unit and Mitsubishi’s AD72 Positioning Module are 
given in this example.
2. Incorrect signal connections may damage the Positioning Unit, multi-winding drive unit, SERVOPACKs, and 
converters.
3. Open the signal lines not to be used.
4. The above connection diagram shows the connections for only one axis. When using other axes, make connec-
tions to the SERVOPACK in the same way.
5. Short-circuit the normally closed (NC) input terminals that are not used at the I/O connector section of the posi-
tioning module. 
6. Make the settings so that the servo can be turned ON/OFF by the Servo ON (/S-ON) signal.
7. The SERVOPACK incorporates safety functions to protect people from the hazardous operation of the movable 
parts of the machines, reduce the risk, and ensure the safety of the machine in operation. Necessary circuits and 
settings are required in CN8 to use these functions. If these functions are not used, use the SERVOPACK with the 
enclosed safety jumper connected to CN8. For details, refer to 
5.11  Safety Function.
1Ry
+
-
+24 V
0
24
V
+24 V
CONT
SERVO
CN1
ENCO
STOP
DOG
SV-ON
READY
PULSE A
PULSE C
PULSE B
0 V
0 V
0 V
∗
2
1
3
2
1
3
2
4
6
5
4
7
5
8
11
10
3
9
6
∗
1
+24 V-IN
ALM+
ALM-
V-REF (T-REF)
SG
PAO
SG
/PCO
PCO
/PBO
PBO
 
/PAO
47
32
31
40
1
20
19
34
33
36
35
5
(9)
6
(10)
/S-ON
1Ry
∗
4
∗
5
∗3
I/O power supply
Positioning Module
AD72 manufactured
by Mitsubishi Electric 
Corporation
Speed reference
ON when 
positioning is
canceled
ON when 
proximity is
detected
Connector 
shell
Multi-winding drive unit
43
42
CN1
P-OT
N-OT
0
24
V