REV 1,5 A speed regulator

RDV/REV A
Speed regulator with power 5-speed switch - controlled by switch on the cabinet; START STOP by remote selectable switch.

RDV/REV C
Speed controller with 5-stage output switching via contactors - controlled by remote communication switch DO C or DO A (start/stop), or by signal from parent digital system.

RDV/REV E
Speed controller with contactor switching, complete with voltage converter (PN) and 24 V AC/DC source for analog sensor. It is controlled directly by a signal from a remote sensor (0-10 V). In this way, automatic speed control with process variables (air quality, CO₂ concentration, temperature, humidity, diff. pressure) is possible.

Features

The five-stage transformer speed controllers are designed to control asynchronous motors with a resistive armature and are recommended by the manufacturer for this purpose. The manually operated controllers have a six position switch on the front panel (OFF, 5 control stages). The toroidal transformers used have low power dissipation and are equipped with thermal protection of the windings by means of thermocontacts. The regulators are supplied in three functional versions - A, C, E.

Description

The cabinet houses the transformers, terminal blocks, relays and switches. The remote control design is provided with simple dials that allow for Fan Start, Fan Stop, signal Standby and some allow for speed adjustment. For the voltage converter controller, the levels at which switching occurs, the hysteresis of each stage can be programmed. When switching, all stages are first switched off and with a time delay (programmed 6 or 20 s) the next stage is switched on.

Basic technical data

- supply voltage 230 V (REV) or 400 V (RDV)
- output voltage:
105 - 130 - 145 - 160 - 230 V (REV)
140 - 180 - 230 - 280 - 400 V (RDV)
- output current:
1.5 - 3 - 5 - 7 - 10 A (REV)
1.2 - 2.5 - 5 - 7 - 10 A (RDV)
(the numerical value indicates the maximum phase current in amperes)
- protection class IP54
- type designation: the letter after the numerical value indicating the current value indicates the controller version A, C, E.

Mounting, maintenance and service

Each installation must be carried out by a qualified electrical designer or professional firm to make the correct selection of the controller. Installation and commissioning must only be carried out by a professional electrical contractor authorised under the Trade Act.

- Before installation, the regulator must be carefully checked, especially whether any part is mechanically damaged and whether the insulation of the wires is in order.
- It is advisable to install the power regulator near the fan, e.g. in the mechanical room or in the ceiling, so that its initial and periodic inspections can be carried out.
- The regulator may only be placed in a vertical or horizontal position on a wall, on an air duct or on an auxiliary structure. The controller is fixed with four screws in the holes of the controller base.
- The installation must always be carried out taking into account the weight of the controller, ease of connection of wiring cables, service access and free cooling.
- Care must be taken during installation to ensure that the interior of the controller, which contains sensitive electromechanical components, is not contaminated. In particular, it must be ensured that no dirt (dust, sand, plaster mixtures, etc.) is introduced as a result of construction activities.
- The remote control can be mounted up to a maximum distance of 50 m from the controller on the wall to the service area.

- The remote control can be mounted up to a maximum distance of 50 m from the controller on the wall to the service area.

Caution!

When using the controllers, always check that the rated fan current is not exceeded in any position of the controller and in any operating condition of the fan (closed or open dampers, clean or clogged filters, etc.). If the fan motor is not equipped with a thermocontact, the fan overcurrent protection must always be fitted downstream of the controller and the value of the protection element must always correspond to the rated fan current. The regulator protection is located upstream of the speed controller.

Caution!

Regulators must not be overloaded with current exceeding the maximum permitted current Imax (by connecting the wrong fan, running the fan in a non-working area, etc.). For further details, please refer to the regulators operating instructions.