Figure 2-8. Typical Axis Wiring
8
Pin
No.
Name
Description/
Function
D32
TQ
Output –– drive torque
(current) enable
D30
VEL
Output –– drive speed
enable
D28
MTN
Output –– motion in
progress
D26
IP
Output –– in position
D24
HC
Output –– home
sequence complete
D22
ERR
Output –– error
D20
O
Output –– uncommitted
D18
O
Output –– uncommitted
D16
DRV
Input –– drive amplifier
“OK”
D14
JG+
Input –– jog dir
D12
JG–
Input –– jog direction –
D10
LIM+
Input –– travel limit +
D8
LIM–
Input –– travel limit –
D6
HOM
Input –– home switch
D4
RUN
Input –– run program
D2
1
Input –– run home
sequence
Table 2-3B. Axis 1 (X) Connection
Pins – D32 through D2
Pin
No.
Name
Description/
Function
D32
TQ
Output –– drive torque
(current) enable
D30
VEL
Output –– drive speed
enable
D28
MTN
Output –– motion in
progress
D26
IP
Output –– in position
D24
HC
Output –– home
sequence complete
D22
ERR
Output –– error
D20
O
Output –– uncommitted
D18
O
Output –– uncommitted
D16
DRV
Input –– drive amplifier
“OK”
D14
JG+
Input –– jog dir
D12
JG–
Input –– jog direction –
D10
LIM+
Input –– travel limit +
D8
LIM–
Input –– travel limit –
D6
HOM
Input –– home switch
D4
RUN
Input –– run program
D2
1
Input –– run home
sequence
Table 2-3C. Axis 2 (Y) Connection
Pins – D32 through D2
Digital Input/Output
All digital input/output (I/O) are optically
isolated and require a power supply
(either user-supplied power at 10 to 30
VDC or isolated DC supply at 24 VDC
from the SMC20). Further, some digital
I/O have a default usage, as Table 2-3B
and 2-3C show; however, you can
program one or more of them to perform
general purpose functions
(Programming the SMC20 page ## or
the Programming Reference Manual).
Using Input and Output
Connections
Table 2-3A lists the name and
function/description for each analog pin
in each axis connection on the SMC20.
Table 2-3B and 2-3C lists the name and
function/description for each digital pin.
This section gives further information
about each pin. The information
includes a typical connection.
