Instruction manual

87
 Motor Protection
The VS-606V7 protects against motor overload with a built-in electronic
thermal overload relay.
• Motor rated current (elctronic thermal reference current, n036)
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 (n037, n038)
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
0
1
2
Applied to general-purpose motor
Applied to inverter motor
Electronic thermal overload protection not provided
Constants
No.
Name Unit Setting Range Initial Setting
n038
Electronic thermal motor
protection time constant setting
1min 1 to 60min 8min
n037 Setting Electronic Thermal Characteristics