Operation protection
Problem You incorrectly operated the inverter.
Possible Causes What to Check and Suggested Measures
(1) The key was
pressed when H96 = 1
or 3.
Although a Run command had been inputted from the input
terminal or through the communications port, the inverter was
forced to decelerate to stop.
Î If this was not intended, check the setting of H96.
(2) The start check function
was activated when H96
= 2 or 3.
With a Run command being inputted, any of the following
operations has been performed:
- Turning the power ON
- Releasing the alarm
- Switching the enable communications link LE operation
Î 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 resetting the alarm.)
(3) The forced stop digital
input STOP was turned
ON.
Turning ON the forced stop digital input STOP decelerated the
inverter to stop according to the specified deceleration period
(H96).
Î If this was not intended, check the settings of E01 through E05
on terminals [X1] through [X5].
[ 18 ]
Tuning error
Problem Auto-tuning failed.
Possible Causes What to Check and Suggested Measures
(1) A phase was missing
(There was a phase
loss) in the connection
between the inverter
and the motor.
Î 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 agrees with the
specifications of the motor.
Motor 1: F04, F05, H50 through H53, P02, and P03
Motor 2: A02, A03, A16, and A17
(3) The connection length
between the inverter
and the motor was too
long.
Check whether the connection length between the inverter and the
motor is not exceeding 50 m.
Î Review, and if necessary, change the layout of the inverter and
the motor to shorten the connection wire. Alternatively, minimize
the connection wire length without changing the layout.
Î Disable both auto-tuning and auto-torque boost (set data of F37
or A13 to "1").
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