Instruction manual

NGA 2000 MLT Hardware
TROUBLESHOOTING
10 - 6
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
10.3.9 External Input
Possible Causes Check / Correct
a) Configuration of PCB “DIO” incorrect Check correct software configuration of “DIO”
b) EMC radiation via PCB “DIO” Incorrect wiring of external actors (section 5.5)
c) PCB “DIO” not or not correct connected / Check correct connection of PCB “DIO”.
defective
Exchange PCB “DIO”.
d) PCB “ACU” defective: Replace ACU 02 (see 12.3)
10.4 No or incorrect Analog Outputs / Digital I/O's
Possible Causes Check / Correct
a) Configuration of PCB “SIO/DIO” incorrect Check correct software configuration of PCB's
“SIO/DIO”
b) EMV radiation via PCB “SIO/DIO” Incorrect wiring of external actors (section 5.5)
c) PCB “SIO/DIO” not or not correct Check correct connection of PCB “SIO/DIO”.
connected / defective
Exchange PCB “SIO/DIO”.
d) Additional PCB “SIA” Check correct connection of PCB “SIA” → “SIO”.
(more than two analog outputs) (Fig.1-35)
not or not correct connected / defective Exchange PCB “SIA/SIO”.
e) PCB “ACU” defective: Replace ACU 02 (see 12.3)
DISPLAY MESSAGES - NO OR INCORRECT ANALOG OUTPUTS / DIGITAL I/O'S