Mitsubishi Electric NZ2GF2B-60TCTT4 User Manual page 280

Alarm code
Classification
*1
(hexadecimal)
0AAH Minor error
0BAH Minor error
0CAH Minor error
0DAH Minor error
*1  represents the channel number where an error has occurred.
*2 The error details written here are for the case when Error history is A06H to A09H (for Error history 1 (address: A00H to
A0FH)). The following information of when an error has occurred are stored in this area.
• Error occurrence address
• Process value (PV)
• Manipulated value (MV)
• Set value (SV)
For details on Error history, refer to the following.
Page 363, Appendix 3 (69)
278
Operation at alarm
Cause
• The ALM LED turns on.
• CH Alert occurrence flag
A process alarm upper (RX18 to RX1B) turns on.
limit alert has occurred. • CH Process alarm upper
limit (b2 of RWr4 to RWr7)
turns on.
• The ALM LED turns on.
• CH Alert occurrence flag
A process alarm lower (RX18 to RX1B) turns on.
limit alert has occurred. • CH Process alarm lower
limit (b3 of RWr4 to RWr7)
turns on.
• The ALM LED turns on.
• CH Alert occurrence flag
A rate alarm upper limit (RX18 to RX1B) turns on.
alert has occurred. • CH Rate alarm upper
limit (b4 of RWr4 to RWr7)
turns on.
• The ALM LED turns on.
• CH Alert occurrence flag
A rate alarm lower limit (RX18 to RX1B) turns on.
alert has occurred. • CH Rate alarm lower
limit (b5 of RWr4 to RWr7)
turns on.
Alarm details
occurrence
• The process value of
the error channel is
stored in Process
value (PV).
• The manipulated value
of the error channel is
stored in Manipulated
value (MV).
• The set value of the
error channel is stored
in Set value (SV).
*2
Action
When the temperature process
value (PV) has returned within
the setting range, the
corresponding bit of CH Alert
definition (RWr4 to RWr7) and
CH Alert occurrence flag
(RX18 to RX1B) automatically
turns off. Latest warning code
(RWr2) is automatically cleared
when the temperature process
value (PV) has returned within
the setting range.
When the temperature process
value (PV) has returned within
the setting range, the
corresponding bit of CH Alert
definition (RWr4 to RWr7) and
CH Alert occurrence flag
(RX18 to RX1B) automatically
turns off. Latest warning code
(RWr2) is automatically cleared
when the temperature process
value (PV) has returned within
the setting range.