Helios GigaBox GBD EC 560, Инструкция по установке и эксплуатации

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1.15 Protection against accidental contact
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When installing observe the valid regulations for labour protection and accident prevention! A protection
against accidental contact according to DIN EN ISO 13857 is to be guaranteed. Any contact with rotating parts
must be avoided. Make sure that no textiles or other materials (such as clothing) which could be sucked in are close to
the suction area of the fan. Fans protected by their installation (in ventilation ducts or closed aggregates) do not need a
protection grille, if the installation guarantees the protection. We emphasize that the installer will be held responsible for
accidents occurring as a result of missing protection devices.
1.16 Air flow direction and direction of rotation
The EC-Gigabox model ranges have a fixed direction of rotation, i.e. they are not reversible. An arrow on the units indi-
cates the direction. Correct rotation must be ensured when running the fan. Incorrect direction of rotation leads to lower
air volumes, increased noise levels and a higher electrical current, which will harm the motor.
The fan should be installed in such a way to ensure desired air flow direction in the system.
The air flow direction of the fans can be determined by appropriate installation. The discharge is possible in any direc-
tion by changing the outlet adapter and side panels (see point 3.0) to suit to desired result. Therefore most desired
discharge options are available.
1.17 Speed control
– with speed potentiometer PU/A
For stepless and direct control or nominal value preset of EC-fans with potentiometer input. Additionally equipped with
an enabling switch and LED-display for the operating status (dependant on feature of fan type).
The potentiometer is
attached directly to the potentiometer input of the fan control. This has therefore a potentiometer supply of e.g. 10 V
DC and an input control signal of 0-10 V DC.
Basic diagram:
Example: Stepless speed control
– with universal control system EUR EC
For stepless control or adjustment of single- and 3-phase EC-fans with an input control signal of 0 - 10 V DC.
Connection examples of the basic diagram are mentioned further below.
Basic diagram:
Example 1: Temperature control with additional function Example 2: Differential pressure control and air velocity
and differential temperature control control
The use of other brands, especially other electronic devices, can lead to malfunctioning and even destruc-
tion of controller and/or fan. Controllers which have not been cleared by Helios are not liable for warranty and
guarantee claims!
ATTENTION
IMPORTANT
+
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WARNING
Control of several EC-fans with a potentiometer
In order to control several EC-fans via the setpoint input “0-10V”, the 10VDC -voltage source must provide the
sum of all setpoint input burden currents.
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Parallel connection of +10VDC supply of several EC-fans is not permitted !
Depending on the type several EC-fans can be controlled with the 10VDC supply from a fan with a potentiometer
(PU/A). For this see the technical data of the control inputs and the wiring diagram SS-1035.
If the power of the EC-supply is not sufficient a customer-supplied sufficient external 10VDC can be used (galvani-
cally separated from the mains).
Alternatively the Helios module “EUR EC“ can be used for varied control duties.
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WARNING
3
Centrifugal fans – GigaBox GBW EC.. / GBD EC..
Installation and Operating Instructions
EN
Fig.2
or
EC fan
E.g.
Fig.3
or
E.g.
EC fan
Fig.1
Stepless speed
setting with potenti-
ometer
Operating conditi-
on/fault indicator
depends on fan size
EC fan
Release