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IM 01E20C01-01E
6-38
6. PARAMETER DESCRIPTION
6.5.3 Alarms & Warning Messages
System Alarms (Device breakdown or inability to obtain correct measurements.)
Display unit/BRAIN
(ᮀ60) content
Alarm countermeasure
message on display unit
10:uP Fault
Contact nearest office or
service center
Microprocessor (CPU) failure
11:EEPROM Fault
Contact nearest office or
service center
EEPROM failure
12:A/D(H) Fault
Contact nearest office or
service center
A/D converter failure
13:A/D(L) Fault
Contact nearest office or
service center
14:A/D(Z) Fault
Contact nearest office or
service center
15:Coil Open
Cut the power and check coil
& EX cable
Flowtube coil is open-circuit
16:EEPROM Dflt
Contact nearest office or
service center
EEPROM default values
Contact your nearest Yokogawa office or
service center.
Turn off the AXFA11 power supply and
examine the excitation cable for breakage.
If there is no breakage, contact your nearest
Yo kogawa office or service center.
Contact your nearest Yokogawa office or
service center.
Alarm description Countermeasure
T0651.EPS
Process Alarms (Device is normal but process-related errors make correct measurement impossible.)
Display unit/BRAIN
(ᮀ60) content
Alarm countermeasure
message on display unit
30:Sig Overflow
Check signal cable
and grounding
Input signal error
31:Empty Pipe
Fill flow tube with
fluid
Flowtube is not filled with
fluid
Carry out an investigation as follows:
• Check the signal cable for breakage.
• Check for contact between signal cable,
power cable, and excitation cable.
• Check for stray currents in the fluid.
• Check the grounding.
Fill the flowtube with fluid.
33:Adhesion Alm
Clean electrodes
Electrode adhesion alarm Clean the electrodes.
32:HH/LL Alm
Check the flow rate and
setting value
Flow rate alarm for greater
than High-High limit value
or less than Low-Low limit
value.
Check the flow rate and setting value of
High High limit and Low Low limit.
Alarm description Countermeasure
T0652.EPS