Hitachi J300 Series Instruction Manual page 127

I unrurno
r If the retry mode is selected, do not approach the inverter unnecessadly. It will be
restaned suddenly afier it trips/stops. (Design the invener so that the safety can be
assured even in such a restart.) Otherwise, bodily injury will result.
NOTE: Since the retry mode is selected, the €quipment restarts for trips of overcurent,
overvoltage, or undervoltage. For undervoltage, 16 retries (17th trip) are
executed. For overcurent or overvoltage, 3 retries (fourth tdp) are executed.
Do not use this function for a case that a fallen substance should be held bv the
machine brake when the motor is in the free run mode.
ln the following cases, the equipment may start at the lowest ftequency (called 0 start).
O When the reclosing standby time (function mode F-22, IPS WAIT) after the
instantaneous power failure is recovered is set to 3 seconds or more
O When the output frequency is more than 60 Hz
O) When the base frequency is 60 Hz: Driven at 30 Hz or less
Wben the base frequency is 50 Hz: Driven at 25 Hz or less
@ When the induced voltage of the motor attenuates earlier (for example, a pump or
high-speed gear which causes the motor to decelerate for several seconds or less)
NOTE: The inverter control power holding time may be slightly different depending on
the inverter rating, the load status, remote operator (copy unit) connection
status, and input voltage.
<Time chart for retry mode>
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