22
4.3.6 Input /Output signal connection figure
Please use U-shaped contact tag to set NPN mode or PNP mode and the internal or external
power supply. The default setting is NPN internal mode.
Fig 4-21 U-shaped contact tag
If the signal is from NPN transistor, please set the U-shaped contact tag between +24V and
PW as below according to the used power supply.
Fig 4-22 NPN modes
If the signal is from PNP transistor, please set the U-shaped contact tag as below according
to the used power supply.
Fig 4-23 PNP modes
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.