Fuji Electric FRENIC-Ace series - 12 ] Operation Error; Er7 Tuning Error

6.3 If an Alarm Code Appears on the LED Monitor
6-9
TROUBLESHOOTING
Chap 6
[ 12 ]
er6
Operation error
Phenomena An incorrect operation was attempted.
Possible Causes Check and Measures
(1) key was pressed when the
key is effective (H96=1, 3).
[Subcode:
1]
Check whether the key was pressed in a state that a run command
is inputted via terminal block or communications.
 If this was not intended, check the setting of H96.
(2) The start check function was
activated when H96 = 2 or 3.
[Subcode:
2 to 6]
Check that any of the following operations has been performed with a
run command being entered.
• Power on
• Release of alarm
• Switching to link operation command
 Review the running sequence to avoid input of a Run command
when this error occurs.
If this was not intended, check the setting of H96.
Turn the run command OFF before releasing the alarm.
(3) The forced stop (digital input
terminal) STOP was turned
OFF.
[Subcode:1]
Check that the forced stop “STOP” is turned off.
 If this was not intended, check the settings of E01 through E05 for
terminals [X1] through [X5].
[ 13 ]
er7
Tuning error
Phenomena Auto-tuning failed.
Possible Causes Check and Measures
(1) A phase was missing in the
connection between the inverter
and the motor.
 Properly connect the motor to the inverter.
(2) V/f or the rated current of the
motor was not properly set.
Check whether the data of function codes (F04*, F05*, H50, H51, H52,
H53, H65, H66, P02*, P03*) agree with the motor modes.
(3) The wiring length between the
inverter and the motor was too
long.
Check whether the wiring length between the inverter and the motor
exceeds 50 m. Inverters with a small capacity are greatly affected by the
wiring length.
 Review, and if necessary, change the layout of the inverter and the
motor to shorten the connection wire. Alternatively, minimize the
wiring length without changing the layout.
 Disable both auto-tuning and auto-torque boost (set data of F37* to
“1”).
(4) The rated capacity of the motor
was significantly different from
that of the inverter.
Check whether the rated capacity of the motor is three or more ranks
lower, or two or more ranks higher than that of the inverter.
 Replace the inverter with one with an appropriate capacity.
 Set motor constants (P06*, P07*, P08*) manually.
 Disable both auto-tuning and auto-torque boost (set data of F37* to
“1”).
(5) The motor was a special type
such as a high-speed motor.
 Disable both auto-tuning and auto-torque boost (set data of F37* to
“1”).
(6) Tuning (P04*=2) operation was
performed of rotating a motor in
a state that brake is applied to
the motor.
 Specify the tuning that does not involve the motor rotation (P04* =
1).
 Perform the tuning (P04*=2) with the motor brake released.