r-tec FU Control Unit

Overview

FU is a frequency-inverter control unit with a single-phase 220 VAC input and three-phase motor output. The manual describes soft start and stop, as well as applications involving sliding garden gates and rapid PVC door motors. Check the proposed motor, controller and door combination for the particular project.

Two conflicts in the source

The technical table on PDF page 2 gives the motor output as 3 × 220 VAC, while the prose on the same page says 3 × 230 VAC. The exact output voltage is therefore omitted here; motor matching requires an approved revision.

The newly linked full English FU manual, page 2, also describes 3 × 220 V motor output. The Turkish technical PDF page 2 gives 3 × 220 VAC in its table but 3 × 230 VAC in the prose. These are separate language editions; the 3 × 230 V statement cannot be ignored to claim a settled output value.

The wiring diagram on PDF page 3 labels DIP 5 OFF = flasher, ON = brake board. The control-DIP table on page 4 instead describes the same switch as selecting garden-gate and rapid-PVC motor modes. This PDF cannot establish the correct SW5 function or position. Commissioning must follow a current manufacturer-approved instruction.

Documented controls

Control switch	Function in the manual
SW1	Automatic close, with the waiting time set by T5.
SW2	Limit teaching for encoder motors.
SW3	Optical sensor activation.
SW4	Reversal of operating and deceleration limits.
SW5	Conflicting descriptions on PDF pages 3 and 4; approved revision required.

A separate pair of motor-type DIP switches lists 0.75 / 1.1 / 1.5 / 2.2 kW choices. Control SW2 must not be confused with SW2 in that separate motor-power group.

Speed and position connections

T1 adjusts opening high speed, T2 closing high speed, T3 start frequency, T4 slow speed and T5 the automatic-close wait. The wiring diagram labels Sw1–Sw4 as closing limit, closing deceleration, opening deceleration and opening limit. Encoder terminals are 5 V/12 V, B, A and GND; the diagram shows 24 V as a separate terminal.

Receiver and commissioning scope

PDF page 6 describes an optional external socketed RF-433 receiver. Its remote-enrolment counts belong to that receiver option, not the standard FU controller. The PDF gives no fault-code table, one-minute reset procedure or universal installation recipe for every motor. Qualified personnel should confirm wiring, motor compatibility and DIP positions against the approved current instructions for the installation.