Flintec FAD-4 - Manual (Page 18)

FLINTEC
Document Date Code Rev. Page
FAD - 4 DIGITAL LOADCELL JUNCTION BOX 02.05.00 FAD4_2RM 2 18 of 20
7 ERRORS
This chapter provides information on error messages and troubleshooting instuctions.
Errors may be hardware or software related. They are output in the form Error xx, where xx is the error
code. The Master computer must send ACK block to acknowledge the error.
Following is a list of errors with indication of possible causes and probable remedy.
ERROR POSSIBLE CAUSE ACTION TO BE TAKEN
ERR 01
System ROM. Faulty IC 2
Check solder connections or contact manufacturer
ERR 02 System RAM. Faulty IC 2 Check solder connections or contact manufacturer
ERR 04 Calibration loss or faulty EEPROM IC 1 Recalibrate or contact manufacturer
ERR 05 Mechanical failure or loadcell or A/D converter
IC 13
Check scale, loadcell cables, reset DJB, power off-
wait 5sec-power on, contact manufacturer.
ERR 15 System has been initialised due to power failure
or soft reset Empty scale and set to Zero .
ERR 90 Not enough weight for span calibration
Recalibrate.
ERR 91 Calibration lock jumper is inserted, or software
lock is activated. Remove calibration lock jumper, or unlock
calibration.
TROUBLESHOOTING
SYMPTOMS ACTION TO BE TAKEN
* LED D10 does not light. *Check the ac/dc supply. If the power is present but there are no 5VDC check fuse F13.
Replace if necessary with same type fuse only.
*FAD-4 does not *Check communication setup (baud rate, data bits, parity, FAD address).
communicate with HOST. Check communication cable.
Check polarity of RS485 (Refer to drawing ‘FAD-4/703.2/088’).
*Weight output from *Decrease number of DJB (s) to be scanned at HOST.
FAD-4 is too slow. Increase Baud Rate.
Increase number of conversions per second.
*Corner calibration *Check number of load cells connected and setup parameters of FAD.
does not proceed. (e.g for a weigh system with 2 load cells, set number of load cells=2
Place a test weight on each corner in turn and verify (using internal resolution corner
reading) that there is a positive change in resolution.
Use calibration weight equal to 10-30% of each load cell capacity.
Check loadcells and connector screw terminals (if not tight push with a tool from the
opposite side of the screw).
*Weight output from *Check calibration data. Reduce external divisions or lower conversion rate
FAD-4 is not stable. or increase digital filter, check number of load cells. Check power supply
Check load cell connection(s) and cable(s). Check input and output resistance and
resistance between any terminal and shield.
*Weight Output is not the same *Check that the scale is mechanically OK and it is free on all sides.
on each corner. Check load cell connection(s) and cable(s). Check input and output resistance
and resistance between any terminal and shield.
Check calibration data. Recalibrate corners with sufficient stabilization time.