Mitsubishi Electric FR-F820-00077 Instruction Manual page 551

Parameters
PID gain tuning error
When the read value of Pr. 1219 or the PID gain tuning status monitor display is "9, 90 to 96", tuning
has not been properly completed due to a tuning error. Remove the cause of the tuning error, and per-
form tuning again.
Monitor
value
9
90
91
92
93
94
95
96
Tab. 5-185: Corrective actions for PID gain tuning errors
FR-F800
Error definition Cause of tuning error
Termination of tuning
due to activation of an
An inverter protective function is activated.
inverter protective
function
The measured value is higher than the PID
Input upper limit error
upper limit (Pr. 131 or Pr. 1143).
The measured value is lower than the PID
Input lower limit error
lower limit (Pr. 132 or Pr. 1144).
The deviation exceeded the PID deviation
Deviation limit error
limit (Pr. 553 or Pr. 1145).
Tuning is not terminated within the time set
Timeout error
in Pr. 1211 after the start of PID gain tuning.
Calculation error The tuning calculation is inconsistent.
PID control is disabled during tuning.
The PID control setting has been
changed during tuning.
Setting error
In the limit cycle method, the Pr. 1215
setting is equal to or lower than the
Pr. 1216 setting.
PID gain tuning has been started during
automatic switchover or pre-charge
operation.
A stall prevention or regeneration
avoidance operation occurred during
PID gain tuning.
PID mode error
A condition for output shutoff by the
SLEEP function was satisfied during PID
gain tuning.
Frequency fluctuation occurred because
of the frequency jump, maximum
frequency, or minimum frequency
during PID gain tuning.
(A) Application parameters
Corrective action for error
Remedy the cause.
(Refer to page 6-9.)
Change the Pr. 131 or Pr. 1143
setting as appropriate.
Change the Pr. 132 or Pr. 1144
setting as appropriate.
Change the Pr. 553 or Pr. 1145
setting as appropriate.
Change the Pr. 1211 setting as
appropriate.
In the step response method,
change the Pr. 1212 and Pr. 1213
settings as appropriate.
In the limit cycle method, change
the Pr. 1217 setting as appropriate.
Enable PID control.
Change the Pr. 1215 and
Pr. 1216 settings as appropriate.
Change the setting of each function
as appropriate.
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