Specifications

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3BUS 208 000 R1301 225Troubleshooting
Voltage Level Out of Limits
Various board voltages on each microcontroller are derived from the + and - 15 volt
power supply board voltages. The range of each voltage is as follows:
low high
AnalogPosVolt01_ai 14.6 15.4 *
AnalogNegVolt01_ai -15.4 -14.6 *
DigitalVolt01_ai (ECF) 4.9 5.1 *
ThermRefVolt01_ai 4.44 4.56
A2DRefVolt01_ai 4.45 4.55
A2D Test Volts (ECF) 4.85 5.15 **
* Voltage is derived from the ECPSR power supply board.
** A feedback test signal from the ECF A2D converter.
Communications Loss For Frame ECF/xxxx ECS
HDLC communication to the specified sensor/frame ECS/ECF board has been lost.
Usually a reconnect results in recovery without any loss of performance. If multiple
microcontrollers are disconnected, it could mean a defective MPRC board.
Persistent disconnects of a single board may mean that the board is defective.
There are two HDLC comm lines used. The assignments are as follows:
LINE 1 - ECF, Basis Weight, Gloss, Ash
LINE 2 - IR Moisture, Caliper, OptiPak, General/Color
Undefined Alarm
Some alarm condition has occurred for which there is no display text. Note the
associated code and call the Support Line for assistance.
Frame Alarm Messages
Motor Stopped by Obstacle
There has been no detected motion along the current trajectory causing an excessive
position error. Possible areas of investigation are the motor controller, a mechanical
failure of the drive train, incorrect setup of the motor controller, or vminTune turned
off with activeVmin set too low.
Head Position Verify Test - Timeout
The ‘Self Test’ push button on the Frame Control Panel has been pushed with the
frame in LOCAL (hand) and the sequence of resynchronizing and positioning to
off-sheet has not been able to complete. Check for defective motor controller,
encoder, ECF board, and home limit switch. The red LED on the panel push button
should be flashing.
Head Position Verify Outside Limits
The ‘Self Test’ results are not within acceptable limits. The resultant off-sheet
position reached was not within 20 encoder counts of the original position. The
red LED on the push button will remain flashing. Possible problem with the encoder
slipping, or a bad ECF board.