GasTech GTA-VSD20i Manuale utente
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GTA-VSD20i
Digital Ventilation Fan
Controller System
OPERATOR’S MANUAL
GTA-VSiTM
Digital Ventilation Fan Controller System
Part Number 73- 010
Manual Revision v1.0 (12 August 2014)
Table of Contents
1.
Introduction ................................................................................................................................................... 6
1.1
Features ................................................................................................................................................ 6
2.
Component Parts ........................................................................................................................................... 7
2.1
Main Controller Module ........................................................................................................................ 7
3.
Mounting .......................................................................................................................................................
3.1
Wiring Up The Modules ...................................................................................................................... 10
3.1.1
Power Connections - Main Control Unit, Extender Module and HMI ............................................ 10
3.1.2
Power Supply Considerations ......................................................................................................... 10
3.1.3
Connections From Gas Sensors and Connection to Fan System. .................................................... 11
3.1.4
Connections To Relay Switched Functions. .................................................................................... 12
4.
System Operation. ....................................................................................................................................... 13
4.1
System Commissioning ....................................................................................................................... 13
4.2
Running The System ............................................................................................................................ 13
4.2.1
Enabling a Channel (HMI required)................................................................................................. 13
4.2.2
Entering the Setup Password (HMI funcion)................................................................................... 13
4.2.3
Normal Input Signal Operation ....................................................................................................... 13
4.2.4
Fault Signal Indication ..................................................................................................................... 13
4.2.5
Fan Control / Alarm Relays ............................................................................................................. 14
4.2.6
Variable Speed Enable Signal .......................................................................................................... 14
4.2.7
Fan Control Voltage ........................................................................................................................ 14
5.
System Characteristics ................................................................................................................................. 15
© 2011 Gastech Australia Pty Ltd Page 2
PROPRIETARY STATEMENT
GasTech Australia owns proprietary rights in the information disclosed within. By receiving this document, the
recipient agrees that neither this document nor the information disclosed within nor any part shall be
reproduced or transferred to other documents or used or disclosed to others for manufacturing or for any
other purpose except as specifically authorised in writing by GasTech Australia.
COPYRIGHT STATEMENT
Information contained in this document is protected by copyright. No part of this document may be
photocopied, reproduced, or translated to another program or system without prior written authorisation
from GasTech Australia.
TRADEMARK STATEMENT
Protected through use and/or registration in the United States and many foreign countries are the trademarks
and service marks of GasTech Australia. The use of the ® symbol indicates registration in the United States
only and the “
TM
” is in Australia; registrations may not have been issued at present in other countries. All other
product names and logos are trademarks of their respective owners.
DISC AIMER
Under no circumstances will GasTech Australia be liable for any claims, losses, or damages resulting from or
arising out of the repair or modification of the equipment by a party other than GasTech Australia or its
authorised service representatives, or by operation or use of the equipment other than in accordance with the
printed instructions provided by GasTech Australia or if the equipment has been improperly maintained or
subject to neglect or accident. Any of the foregoing will void the warranty.
REVISIONS TO MANUA
All information contained in this manual is believed to be true and correct at the time of printing. However, as
part of its continuing efforts to improve its products and their documentation, GasTech Australia reserves the
right to make changes at any time without notice. Any revised copies of this manual can be obtained by
contacting GasTech Australia.
Page 3 © 2011 Gastech Australia Pty Ltd
SERVICE PO ICY
GasTech Australia maintains a service facility at the factory as well as authorised service facilities around the
world. Should your controller system require service, you may contact us toll free at 1 00 999 902 within
Australia only or 61- -610 -0000, or visit our website www.gastech.com.au for authorised service locations.
For non-warranty repairs, you will need to provide a purchase order number. If you need to set a limit to the
repairs costs, state a “Not to Exceed” figure. If you need a quotation before you can authorise repair costs, so
state, but understand this will incur additional costs and may delay processing of the repair.
GasTech Australia’s policy is to perform all needed repairs to restore the instrument to full operating
condition, including reactivation or replacement of all out-of-warranty electrochemical cells.
You may send the unit, freight prepaid, to: GasTech Australia Pty Ltd, 24 Baretta Rd, Wangara 6065, Western
Australia. Attn.: Service Department. Enclose the copy of your contact details. Pack the instrument and all its
accessories (preferably in its original packing) and any special instructions. Repairs are warranted for 90 days
from the date of shipment. Sensors have individual warranties.
Always include your address, purchase order number, shipping and billing information, and a description of the
defect as you perceive it. If this is the first time you are dealing directly with the factory, you will be asked to
provide credit references, prepay, or authorise COD shipment.
NOTE: GasTech Australia assumes no liability for work performed by unauthorised service facilities.
© 2011 Gastech Australia Pty Ltd Page 4
WARRANTY STATEMENT
1. Consumers have the benefit of conditions and warranties implied by the Trade Practices Act 1974 (TPA)
and similar provisions of State and Territory enactments and nothing in these conditions is intended to
exclude, restrict or modify any statutory obligation of GASTECH AUSTRALIA PTY LTD (Company) if that
cannot lawfully be effected.
2. This warranty relates only to Equipment manufactured and services supplied by the Company, its related
corporations and subsidiaries. Equipment or any part thereof which is returned to the Company,
transportation prepaid, within 27 months from the date of dispatch from the Company’s premises or 24
months from the date of shipment to the ultimate user (whichever occurs first) and is found by the
Company, after examination, to be defective in workmanship or materials, will be either repaired or
replaced as determined by the Company, free of charge. The terms of this paragraph apply unless stated
otherwise in this instruction manual.
3. This warranty does not apply to:
a) replacement or repairs which are required as a results of improper installation, misuse,
maladjustment modification or lack of routine maintenance by others;
b) items subject to deterioration or consumption in normal service, that is, those which must be
cleaned, repaired or replaced routinely such as (but not limited to) lamps, bulbs and fuses, pump
diaphragms and valves, absorbent cartridges, filter elements and batteries; or
c) goods, materials or parts supplied or manufactured by unrelated third parties and provided to
the Purchaser at the specific request of the Purchaser and such goods, materials or parts will be
repaired or replaced only to the extent of the original suppliers warranty.
4. Should the Company be liable for breach of a condition or warranty (other than the pursuant to section 69
of the TPA) implied by Division 2 of Part V of the Act (other than that implied by section 69 of the TPA) the
liability of the Company for such breach shall, subject to section 6 A(2) of the TPA, be limited to one of
the following as determined by the Company.
a) the replacement of the Equipment or the supply of equivalent Equipment-,
b) the payment of the cost of replacing the Equipment or of acquiring equivalent Equipment.
5. Subject to Clauses 2 and 4 and any legislation to the contrary:
a) representatives and agreements not expressly contained herein shall not be binding upon the
Company as conditions, warranties or representations; all such conditions, warranties, and
representations on the part of the Company, whether express or implied, statutory or otherwise,
whether collateral or antecedent or otherwise are hereby expressly negatived and excluded;
b) the Company shall be under no liability to the Purchaser for any loss (including but not limited to
loss of profits and consequential loss) or for damage to persons or property or for death or injury
caused by any act or omission (including negligent acts or omissions) of the Company or the
Company’s agents, wherever occurring, arising from the subject matter of this agreement;
c) the Purchaser shall indemnify the Company against any claims made against the Company by any
third party in respect of any such loss, damage, death or injury as is set out in sub-paragraph b)
hereof; the Purchaser further agrees to indemnify the Company against all losses and expenses
which the Company may suffer or incur due to the failure of the Purchaser fully to observe its
obligations under this contract; and
d) no warranty is given and no responsibility is accepted by the Company to ensure the Equipment
supplied complies with any statutory requirements relating to the marketing of goods.
Compliance with such legislation shall be the sole responsibility of the Purchaser.
e) the Company specifically denies any liability for the overall performance of any plant or the
results of any process with which the Equipment is integrated.
Page 5 © 2011 Gastech Australia Pty Ltd
MANUA CONVENTIONS
This product is designed to form part of a system to detect toxic gases and to give warning before they reach
harmful levels. In order to ensure that it will warn of dangerous concentrations, it is essential that the
instructions in this manual, particularly those concerning installation, operation, and maintenance, be read,
understood, and followed.
Notices are used in this operator’s manual to alert you to hazardous conditions to person or instrument and to
notify you of additional information. This operator’s manual uses the following notices.
NOTE: Notifies you of additional information.
CAUTION: Notifies you of potential damage to equipment.
WARNING: Notifies you of potential danger that can result in personal injury or death.
© 2011 Gastech Australia Pty Ltd Page 6
1. Introduction
The GTA-VSD20i
TM
is an AS166 .2 compliant ventilation fan controller system targeted at car park air quality
monitoring applications. The system is designed to provide ventilation fan control based on gas concentration
input signals from connected gas detectors. The inbuilt control software provides both on/off and variable
speed fan operation that complies with AS166 .2 and the operational recommendations published by fan
manufacturers.
The GTA-VSD20i consists of individual components that require connecting together to form the desired
system. The components are:- The main controller, optional extender Modules and an optional Graphical
Display.
The main control module is supplied factory pre-configured and will operate independently without the HMI
unit connected. The HMI is available as an option for systems where changes need to be made to the channel
operations of the system and / or visualisation of the gas concentration readings is required.
1.1 Features
•AS166 .2 compliant operation.
•Scalable from 4 to 20 inputs.
•Industry Standard 4 - 20mA inputs.
•Industry Standard 0 - 10V output.
•Variable Speed and on/off fan control.
•Low stress fan drive control.
•High gas overload signal output.
•System fault signal output.
•Gas alarm output signals.
•Touch screen user interface option.
Page 7 © 2011 Gastech Australia Pty Ltd
2. Component Parts
2.1 Main Controller Module
The main controller module contains the system program that accepts input signals from connected gas
detectors, processes the measurements and outputs the appropriate signal to the fan. The main module can
be used on its own to form a basic system with 4 input channels.
The Main module comprises:-
4 x 4 - 20mA inputs to connect to gas detectors.
1 x voltage output 0 - 10V to connect to fan driver systems.
5 x volt-free relay contacts to connect to fan driver, beacons, sounders etc.
1 x Digital communication port to connect to the optional graphical display module.
1 x Power input connector.
There are a number of additional features on the main controller but these are used for factory programming
and test and do not need to be included in user applications.
The 'Run' / 'Stop' switch must be in the 'Run' position for the controller code to function.
Signals X0 to X7 are not used in the GTA-VSD20i system. Connection to these terminals is not required.
4-20mA Inputs channels 1 - 3
4-20mA Input channel 4
0 - 10VDC Output control
voltage
Volt-Free Relay Contacts
Main Controller Module (Factory pre-configured)
Optional Extender Module shown fitted
Power-On indicator light
Program running status light
Communication activity to display
Volt-Free contacts status lights
Up to 4 Extender Modules can be added giving
a total of 20 input channels. Each additional
extender requires its own power connection to
be made per the connection diagrams shown
on the following pages.
© 2011 Gastech Australia Pty Ltd Page
3. Mounting
Install the Control Unit into an enclosure with sufficient space around it to allow heat dissipation, as shown
below.
DIN Rail Mounting: When mounting the control unit to 35mm DIN rail, be sure to use the retaining clip to stop
any side-to-side movement of the unit and reduce the chance of wires becoming loose. The retaining clip is at
the bottom of the housing. To secure the controller to DIN rail, pull down the clip, place it onto the rail and
gently push it up. To remove the unit, pull the retaining clip down with a flat screwdriver and gently remove it
from the DIN rail.
The optional HMI unit is designed for panel mounting. A mounting kit with gasket is provided to allow a proper seal
to be made around the mounting hole. Dimensions for the rectangular cut-out are given in the diagram below.
Indice
