
FLEXIBLE AXIS
PORT
*Current limit is 150mA max shared with serial port.
Pin Encoder Stepper Axis Absolute Encoder
1 Enc. A Step + Clock
2 Enc. /A Step - /Clock
3 Enc. B Direction + --------
4 Enc. /B Direction - --------
5 0V Serial/Encoder 0V Serial/Encoder 0V Serial/Encoder
6 Enc. Z Enable + Data
7 Enc. /Z Enable - /Data
8 5V* 5V* 5V*
9 Not Connected Not Connected Not Connected
5
4
3
2
1
9
8
7
6
Ensure that:
1. The shield screw is grounded as close to the
MC4N as possible.
2. 0V connection is NOT used for terminating
screens.
3. Pin 5 of Encoder/Stepper plug is connected
to 0V on drive.
4. Encoder cable screen is clamped to 9 way D
shell.
5. The MC4N 24V supply has common 0V with
the drive(s).
When wiring MC4N Stepper output to a
differential input stepper drive, use the 0V
and shield connections shown for the encoder.
The stepper drive must have its common 0V
connected to the MC4N.
5
1
2
3
4
6
7
0V
A+
A-
B+
B-
Z+
Z-
CONNECTOR SHELL
Enc 0V
Quadrature A
Quadrature B
Z Marker Pulse
SHIELD SCREW
ENCODER INPUT (9 WAY D-TYPE)
Encoder Output 0V MUST be connected to pin 5
*
*
SHIELDING THE
PORT
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