YASKAWA VS MINI J7 Bedienungsanleitung PDF herunterladen (Seite 72)

 Motor Protection

The VS mini protects against motor overload with a built-in electronic

thermal overload relay.

• Motor rated current (electoronic thermal reference current, n32)

Set to the rated current value shown on the motor nameplate.

Note: Setting to 0.0A disables the motor overload protective function.

• Motor overload protection selection (n33, n34)

The electronic thermal overload function monitors motor temperature, based

on inverter output current and time, to protect the motor from overheating.

When electronic thermal overload relay is enabled, an “OL1” error

occurs, shutting OFF the inverter output and preventing excessive

overheating in the motor. When operating with one inverter connected to

one motor, an external thermal relay is not needed. When operating several

motors with one inverter, install a thermal relay on each motor.

Motor overload detection

Applied to general-purpose motor

Applied to inverter motor

Electronic thermal overload protection not provided

Constants

No.

Name Unit Setting Range Initial Setting

n34

Protection constant

selection

1min 1 to 60min 8min

n33 Setting

Electronic Thermal Characteristics

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YASKAWA VS MINI J7 Bedienungsanleitung Seite 72