Mitsubishi Electric fr-e700 series, Инструкция по эксплуатации

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Parameter Operation selection at power failure
FR-E700 SC EC/ENE 6 - 163
If offline auto tuning ended in error (see the table below), motor constants are not set. Perform an in-
verter reset and restart tuning.
When tuning is ended forcibly by pressing the STOP-key or turning off the start signal (STF or STR) dur-
ing tuning, offline auto tuning does not end normally. (The motor constants have not been set.) Per-
form an inverter reset and restart tuning.
When using the motor corresponding to the following specifications and conditions, reset Pr. 9 Elec-
tronic thermal O/L relay as below after tuning is completed.
●
When the rated power specifications of the motor is 200/220 V(400/440 V) 60 Hz, set 1.1 times
rated motor current value in Pr. 9.
●
When performing motor protection from overheat using a PTC thermistor or motor with temper-
ature detector such as Klixon, set "0" (motor overheat protection by the inverter is invalid) in Pr. 9.
Error Display Error cause Remedy
8 Force end Set "21" in Pr. 96 and perform tuning again.
9 Inverter protective function operation Make setting again.
91
Current limit (stall prevention) function was acti-
vated. Set "1" in Pr. 156.
92
Converter output voltage reached 75% of rated
value. Check for fluctuation of power supply voltage.
93
– Calculation error
– A motor is not connected. Check the motor wiring and make setting again.
Set the rated current of the motor in Pr. 9.
Tab. 6-44: Value of Parameter 96
NOTES
The motor constants measured once in the offline auto tuning are stored as parameters and their
data are held until the offline auto tuning is performed again.
An instantaneous power failure occurring during tuning will result in a tuning error. After power is
restored, the inverter goes into the normal operation mode. Therefore, when STF (STR) signal is on,
the motor runs in the forward (reverse) rotation.
Any alarm occurring during tuning is handled as in the ordinary mode. Note that if an error retry
has been set, retry is ignored.
The set frequency monitor displayed during the offline auto tuning is 0 Hz.
Changing the terminal assignment using Pr. 178 to Pr. 184 "Input terminal function selection" may
affect the other functions. Make setting after confirming the function of each terminal.
The SU and FU signals are not output during a restart. They are output after the restart cushion
time has elapsed.
Automatic restart operation will also be performed after a reset or when a retry is made by the
retry function.