Service manual

C.1 “TEST” SCREEN OPERATION
Diagnosis of the system begins with these tests. If it is found that the
displayed information indicates a problem, refer to the schematics in section
D or section F.
C.1a Speed Test
Pressing the green “Power On” switch on the keyboard will start the feeder
and folder motors and display the speeds of the feeder, folder, transfer
conveyor, and read encoders.
C.1b Test Cycle
Press “Test Cycle” for 100 msec On/300 msec Off cycle.
Press “Test Cycle” again to stop test.
The speeds indicated are approximate (inches per second).
NOTE: The FEED and READ speeds must be within 5% of each other to
ensure normal operational condition.
C.2 IO/144 BOARD (INPUTS AND OUTPUTS)
C.2a Orientation
Use this screen to test inputs and outputs:From the "Setup" Screen press
“Test” and then on the "Test" screen press the “IO/144 Board” to display the
below screen.
Use this screen to test inputs and outputs:
• From the "Setup" Screen press “Test” and then on the "Test" screen
press the “IO/144 Board” to display the below screen.
PROBLEM ANALYSIS
420T V6LT OPERATOR & SERVICE MANUAL ISSUE 2009/06 Rev. 6/21/2011 SECTION C – PAGE 75
071-33370-400