14
Rev. 1.0
11/08/2017
STF-EC Hardware Manual
400-820-9661
3.1.2 X5, X6, X7 and X8 Digital Inputs
X5, X6, X7 and X8: optically isolated, single-ended, 5-24VDC for high level voltage, minimum
pulse width 100μs, maximum pulse frequency 5KHz
•
X5 can be used as motor enable input or general purpose input.
•
X6 can be used as alarm reset input or general purpose input.
•
X7 can be used as general purpose input or touch Probe 1 trigger input.
•
X8 can be used as general purpose input or touch Probe 2 trigger input.
Because the input is an optically isolated circuit, a 5-24V power supply is needed. For example,
you can use the power supply of the PLC when you are using a PLC control system, but if you
want to connect a relay or mechanical switch to the input , you must need a power supply.
XCOM is an electronics term for a single-ended signal connection to a common voltage. If you are
using a sourcing (PNP) input signals, you need to connect XCOM to the ground (power supply
-), if you are using a sinking(NPN) input signals ,the XCOM need to be connected to the power
.
Use
STF Configurator
software for X5, X6, X7 and X8 function configuration.
The following graphs show some common connection methods for the inputs:
+
-
+
-
output
STF
Drive
X5/X6/X7/X8
XCOM
Connecting a PNP type output to an input
PNP
Type
Output
5-24
VDC
Power
Supply
5-24
VDC
Power
Supply
Connecting to a switch or relay
XCOM
X5/X6/X7/X8
+
-
Switch or Relay
(Closed: logic low)
STF
Drive
5-24
VDC
Power
Supply
XCOM
+
-
+
-
output
STF
Drive
X5/X6/X7/X8
Connecting an NPN type output to an input
NPN
Type
Output
