L100 Inverter

Warnings for Configuring Drive Parameters

vii

WARNING: When parameter B_12, level of electronic thermal setting, is

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set to device FLA rating (Full Load Ampere nameplate rating), the device

 

provides solid state motor overload protection at 115% of device FLA or

 

equivalent. Parameter B_12, level of electronic thermal setting, is a

 

variable parameter.

 

WARNING: Use a disconnect switch or breaker to ensure that you do not

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connect the motor or inverter to live wiring. Otherwise, there is the

 

danger of electric shock.

 

Cautions for Configuring Drive Parameters

CAUTION: Be careful to avoid specifying a braking time that is long

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enough to cause motor overheating. If you use DC braking, we recom-

 

mend using a motor with a built-in thermistor, and wiring it to the

 

inverter’s thermistor input (see “Thermistor Thermal Protection” on

 

page 4–20). Also refer to the motor manufacturer’s specifications for

 

duty-cycle recommendations during DC braking.

 

Warnings for Operations and Monitoring

WARNING: Be sure to turn ON the input power supply only after closing

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the front case. While being energized, be sure not to open the front case.

 

Otherwise, there is the danger of electric shock.

 

WARNING: Be sure not to operate electrical equipment with wet hands.

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Otherwise, there is the danger of electric shock.

 

WARNING: While the inverter is energized, be sure not to touch the

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inverter terminals even when the motor is stopped. Otherwise, there is the

 

danger of electric shock.

 

WARNING: If the Retry Mode is selected, the motor may suddenly

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restart after a trip stop. Be sure to stop the inverter before approaching the

 

machine (be sure to design the machine so that safety for personnel is

 

secure even if it restarts.) Otherwise, it may cause injury to personnel.

 

WARNING: If the power supply is cut OFF for a short period of time, the

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inverter may restart operation after the power supply recovers if the Run

 

command is active. If a restart may pose danger to personnel, so be sure

 

to use a lock-out circuit so that it will not restart after power recovery.

 

Otherwise, it may cause injury to personnel.

 

WARNING: The Stop Key is effective only when the Stop function is

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enabled. Be sure to enable the Stop Key separately from the emergency

 

stop. Otherwise, it may cause injury to personnel.