Chapter 1 Safety Precautions
1-2
1.1.2. DuringPowerUp
Danger
zDo not insert or remove input connections to the inverter when powered up to avoid
damage to the control board resulting from possible voltage surge due to contact
bounce.
zWhen the momentary power loss is short, the inverter still has enough storage power
to control the circuit. Therefore, when power is re-applied, the inverter will
automatically restart depending on the setup of 04-03/04-04.
zWhen momentary power loss is longer than 2 seconds (the larger of horse power, the
longer of time), the inverter does not have enough storage power to control the circuit;
Therefore, when the power is re-applied, the operation of the inverter is based on the
setup of 00-03(or00-04) /04-09 and the condition of external switch, this is considered
to be「restart」in the following paragraphs.
zWhen restarting the inverter, the operation of the inverter is based on the setup of
00-03(or00-04) and 04-09 and the condition of external switch (FWD/REV button).
Attention: the start operation will be regardless of 04-03/04-04/04-06/04-07.
1. When 00-03(or00-04) =0, the inverter will not automatically run after restart.
2. When 00-03(or00-04) =1 and the external switch (FWD/REV button) is OFF,
the inverter will not run after restart.
3. When 00-03(or00-04) =1, the external switch (FWD/REV button) is ON, and
04-09=0, the inverter will run automatically after restart.
Attention: To ensure safety, please turn off the external switch (FWD/REV button)
after power loss, to protect machines from possible damage and potential injury to
personnel on sudden resumption of power.
zIf 4-09 is set to 0 (direct start up), please refer to the description and warnings for
04-09 to verify the safety of operator and machine.
1.1.3. BeforeOperation
Danger
Make sure the model and inverter capacity are the same as that set in parameter 12-00.
Caution
On power up the supply voltage set in parameter 05-03 will flash on display for 2 seconds.
