17
Rev. 1.0
11/08/2017
STF-EC Hardware Manual
400-820-9661
Connecting a sinking output
Connecting a sinking output to a PLC’s input
Connecting a sourcing output to a PLC’s input
Driving a relay
STF
Drive
5-24 VDC
Power Supply
+
–
Load
Y/4-
Y4-
Y4-
Y4-
Y4+
Y4+
Y4+
Y4+
C
D
V
4
2
-
5
+
–
IN
COM
STF
Drive
PLC
5-24 VDC
Power Supply
+
–
COM
IN
STF
Drive
STF
Drive
1N4935 suppression diode
5-24 VDC
Power Supply
+
–
relay
Power Supply
PLC
4 Mounting the Drive
Use the M3 or M4 screw to mount the STF series drive .The drive should be securely fastened
to a smooth, flat metal surface the will help conduct heat away from the chassis. If this is not
possible, forced airflow from a fan maybe required to prevent the drive from overheating.
• Never use the drive in a place where there is no air flow or the surrounding air is
more than 40°C.
•
Never put the drive where it can get wet or where metal or other electrically
conductive particle particles can get on the circuity.
• Always provide air flow around the drive. When mounting multiple STF drives near
each other, maintain at least 2cm of space between drives.
