Layout Protection; Protecting Inverter And Input Power Cable In Short-Circuit Situations; Protecting Motor And Motor Cable In Short-Circuit Situations; Pnp Modes - INVT Goodrive 300 Operation Manual

inverters
Goodrive300

4.4 Layout protection

4.4.1 Protecting the inverter and input power cable in short-circuit situations
Protect the inverter and input power cable in short circuit situations and against thermal
overload.
Arrange the protection according to the following guidelines.
Note: Select the fuse as the manual indicated. The fuse will protect the input power cable
from damage in short-circuit situations. It will protect the surrounding devices when the
internal of the inverter is short circuited.
4.4.2 Protecting the motor and motor cable in short-circuit situations
The inverter protects the motor and motor cable in a short-circuit situation when the motor
cable is dimensioned according to the rated current of the inverter. No additional protection
devices are needed.
 If the inverter is connected to multiple motors, a separate thermal
overload switch or a circuit breaker must be used for protecting each
cable and motor. These devices may require a separate fuse to cut off
Diagram 4-20 PNP modes
Fig 4-16 Fuse configuration
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Installation guidelines