Hitachi SJ Series User Manual page 631

Chapter 18
Message
Operation command is
limited.
Please check operation
command.
Resetting.
Inverter is being reset.
Press the XX key.
Retrying.
Retrying and restarting.
Press the XX key.
Main circuit under
instantaneous power
failure.
Power of main circuit is
turned OFF.
Press the XX key.
Main circuit under
insufficient voltage.
Please check the main
circuit power.
Press the XX key.
POWER OFF
POWER OFF
Press the XX key.
Control power under
insufficient voltage.
Please check the control
power supply.
Press the XX key.
Estimated cause(s)
• Operation command of command direction
is limited by the setting of [AA114] operation
direction limit.
• The rotation direction is reversed from the
command direction limited according to the
setting of [AA114] operation direction limit
because the frequency command is turned
negative due to calculation of main speed or
auxiliary speed.
• [RS] terminal is ON.
• Trip reset was performed. (The screen is
transited automatically at trip reset.)
• The inverter is waiting for restart.
(This mode is released after the set wait time
has elapsed.)
• The inverter may not start if the incoming
voltage is low.
• The main circuit power supply (R, S, T) is
turned OFF due to lightning strikes, power
supply environment, or other factors.
• The control circuit power supply (R0, T0) has
been input, whereas the main circuit power
supply (R, S, T) has been cut.
• The power supply to the inverter is turned
OFF.
• The control circuit power supply (R0, T0) is
turned OFF.
18-38
Tips/FAQ/Troubleshooting
Exemplar measures to be taken
• Check the setting of [AA114]
operation direction limit.
• Check the terminal command FW/RW
and the command direction of
communication command.
• Check whether the calculated
frequency command is negative or
not.
• The inverter is in the condition that
[RS] terminal is ON. Re-examine the
state of input terminal.
• If the wait time for restart is long, the
message will continue to be indicated.
See "12.14 Changing the Start Mode".
• If the incoming voltage is low, check
the input voltage.
• Check the state of input power supply.
• The inverter will recover when the
power supply returns.
• Check the state of input power supply.
• The inverter will recover when the
power supply of main circuit returns.
• Check the state of input power supply.
• The inverter will recover when the
power supply returns.
• Check the state of input power supply.
• The inverter will recover when the
power supply of control circuit returns.