The control unit (CU240E) and power module need to work together and cannot operate separately; If installed incorrectly, it may cause the frequency converter to start unexpectedly, so the installation must be completed by certified personnel who have received training in the installation of such systems.
The default control and monitoring signal source for the control unit is the wiring terminal, which can be modified during debugging through parameters P0700 (command signal source) and P1000 (set value signal source).
SF (system fault) red off, no system fault
SF (system fault) flashing red (0.5Hz) fault not confirmed or fault ongoing
RDY (Ready) green light indicates that the frequency converter is ready to start running (does not mean it is currently running)
RDY (Ready) green goes out. The frequency converter is not ready (such as not powered on, faults not resolved, etc.)
RDY (Ready) green flashing (0.5Hz) device in standby or transition state
