MTS Model FlexTest SE - Manual (Page 142)

Models FlexTest® IIm/GT/SE Controller Hardware
Digital I/O Connections
FlexTest GT Controller Connections 142
Digital inputs The J3 In connector accommodates up to sixteen digital signals from external
devices. You can use digital input signals to trigger test events with your
controller applications.
• All of the inputs are optically isolated and support relay contacts or logic
inputs (see the following figure).
• Channel inputs can be 3 volts (minimum) and 26 volts (maximum) from an
external voltage source.
• Jumpers select the debounce time for each group of four inputs.
Jumper X2 configures inputs 1–4. Jumper X3 configures inputs 5–8. Jumper
X4 configures inputs 9–12. Jumper X5 configures inputs 13–16.
– Not using a jumper sets the debounce to 20 msec.
– Jumper pins 1 and 4 to set the debounce to 10 msec.
– Jumper pins 2 and 3 to set the debounce to 1 msec.
– Jumper pins 1 and 4, and 2 and 3 to set the debounce to 0.1 msec.
J3
+CH1
-CH1
+12
J3
+CH1
-CH1
+12 18
1
20
36
18
1
20
36
External Switch
or
Relay Contact
External Device
External Device
Digital I/O
Access Panel
Digital I/O
Access Panel
493.72 Digital I/O
Transition Module
Opto-
Coupler
493.72 Digital I/O
Transition Module
Opto-
Coupler