G2-2 Series A-B 1771 Remote I/O
Quick Start Manual
Page 4
3835050 TDG22ABQS3-0
1/07
Subject to change without notice
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4) Self-Test Mode
An internal diagnostic tool can also be enabled using the optional MCM module. This tool allows the user to
confirm that all of the Inputs and Outputs on the manifold are fully functional without needing a network
connection or controller. There are two test modes that the user can choose using SW2-8. The “Output” test
mode tests all the outputs by sequentially turning them ON one at a time. The “Input/Output” test mode
tests the inputs by causing all of the outputs to toggle between even and odd values when any input is made.
To use the Self-Test Mode, the user must first set some initial conditions using the MCM module. Follow
these steps to obtain the needed initial condition settings. Remember to remove power from the manifold
before making changes to the MCM when setting these initial conditions.
1)
Disconnect power and air from the manifold!
2)
Record current MCM settings.
3)
Set the rotary switches to 99 (SW3 and SW4).
4)
Make sure that SW1-5, SW2-1, and SW2-7 are in the “ON” position.
5)
Select the desired test mode with SW2-8 (see table below)
Switch Testing
Mode Setting
Description
Output
Off
Sequentially turns all the outputs ON and OFF.
SW2-8 Input/
Output
On
Causes all of the odd outputs to come on and stay on until an
input is made. When an input is made, the outputs will toggle to
the even outputs.
6)
Make sure that all of the other switches are in the “OFF” position.
The initial conditions are now set. To enable the Self-Test Mode, apply power to the manifold and make the
following changes within 5 to 10 seconds:
1)
Set SW2-6 to the “ON” position.
2)
Set SW2-7 to the “OFF” position.
Self-Test Mode is terminated by removing power to the unit. Remember to return the MCM settings to their
original settings to return the communication node to normal operation.
!
Air should be disconnected to the manifold when attempting to run the
Self-Test Mode to prevent unwanted motion.
Communication lines should be disconnected before attempting to run the
Self-Test Mode.
