Azbil DCP31 - Alarm categories

9-4
Chapter 9. MAINTENANCE & TROUBLESHOOTING
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Alarm categories
PVrangealarmgroups: AL01toAL12
Controlleralarmgroups: AL81toALQQ,andlowbatteryvoltage
(BATLEDonconsoleblinksincaseof
lowbatteryvoltage.)
Alarm
Code
Alarm Name Description Remedy
A L 0 1
Input 1 over-range Input 1 has exceeded 110%FS Check input 1
A L 0 2
Input 1 under-range Input 1 has fallen below -10%FS
A L 0 7
Input 1 RTD disconnec-
tion A
RTD line A is disconnected. Check line of RTD (resistance
temperature detector)
connected to input 1 for
disconnection, and terminal
connections.
A L 0 8
Input 1 RTD disconnec-
tion B
RTD line B or lines ABC are
disconnected.
A L 0 q
Input 1 RTD disconnec-
tion C
RTD line C is disconnected.
A L 1 0
MFB disconnection MFB (Y, T, G) line(s) is discon-
nected.
Check MFB wiring.
A L 1 1
MFB short-circuit Y-G line or Y-T-G line is short-
circuited.
A L 1 2
MFB adjustment impos-
sible
Faulty wiring, motor incompat-
ibility etc.
Check wiring of MFB switch-
ing relay or motor specica-
tions.
A L 7 0
A/D trouble A/D converter has malfunc-
tioned. *3
Ask for repair.
A L 8 1
Board conguration error Faulty board conguration Ask for repair.
A L q 6
Program error Damaged program setup data Check program setup, and
reset damaged data. *1
A L q 7
Parameter error Damaged parameter setup data Check parameter setup, and
reset damaged data. *2
A L q 8
Adjustment value error Damaged analog input/output
adjustment data
Ask for repair.
A L q q
PROM error Damaged system program Ask for repair.
*1.
A L q 6
goes out even if program setup data other than the dam-
aged data is reset.
*2.
A L q 7
goes out even if parameter setup data other than the dam-
aged data is reset.
*3. Input data is not updated. An over range or under range condition
does not necessarily occur.