Instructions

12. Safety instructions for electrical connection

Danger due to electric shock when working on all

electrical systems.

◆ The electrical connection and all work on electrical systems

must only be carried out by a qualied electrician in accord-

ance with the connection instructions in these operating

instructions.

◆ Carry out all installation and connection work only in an

isolated, zero-volts state.

◆ Disconnect all phases of the mains power supply cable and

secure it to prevent any reconnection.

◆ Check the system for a zero-voltage status.

◆ Prior to connecting, compare the information about voltage /

frequency on the device with that of the local electrical grid

operator.

Incorrect wiring may lead to short-circuits and destroy

the device.

◆ Follow the pin assignment detailed in the wiring diagram.

◆ Follow all the electrical connection specications in the

operating instructions of your tubular motor and that of

the external controller (when using E1/E2).

Connection of a second phase to E1 or E2 will cause the

Troll Comfort DuoFern to be damaged.

◆ When inputs E1 / E2 are used, they must always be con-

nected to the same phase.

◆ If another phase is connected, the incorrect mains voltage

(380 V / 50 Hz) will be applied to the inputs and damage

the Troll Comfort DuoFern.