QEM IQ004 Operating manual

User and installation
manual
Complement to the "Manual of installation, maintenance and assistance"
Technical issue DQ004001
SERIAL INTERFACE RS 232C / RS 422 (OPTIONAL RS 485) IQ004
This product is an electronic instrument and is thus not to be considered as a machine.
Consequently, it is not subject to the requirements stated in EEC Directive 89/392 (Machines
Directive). It is hereby specified that, if the QEM instrument is used as a component part of
a machine, it must not be switched on if the machine does not comply with the Machines
Directive.
The instrument mark does not absolve the Customer fromthe fulfilment of his or her
legal obligations regarding the finished product.

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IQ004
INDEX OF SUJECTS IN THIS MANUAL
CHAP. 1 - INTRODUCTION
- Complementarity 1 - 1
- References 1 - 2
- Responsability and validity 1 - 3
CHAP. 2 - DESCRIPTION
- Instrument presentation 2 - 1
- Technical, electrical and mechanical features 2 - 2
CHAP. 3 - OPERATOR / MACHINE INTERFACE
- Inputs and outpts description 3 - 1
CHAP. 4 - INSTALLATION
- Mechanical installation 4 - 1
- Electrical installation 4 - 2
CHAP. 5 - ASSISTANCE
- Instructions on how to fill up the Technical Assistance Fax 5 - 1
- Guarantee 5 - 2
- Ordering code 5 - 3

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IQ004
CHAPTER 1
Complementarity
References
Responsability and validity
INTRODUCTION

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1 - 1 COMPLEMENTARITY
This manual is to be considered as a complement to the "Manual of installation, maintenance and assistance" which
supplies the indications for the performance of wirings, troubleshooting, procedures for startup and maintenance. This
manual contains indications for the instrument's use and for a correct programming.
We recommend therefore a careful reading and, in case of misunderstandings, please contact QEM for any further
explanation, by sending the Assistance Fax which you find enclosed to the manual.
1 - 2 REFERENCES
The documentation concerning the instruments which are designed and sold by QEM has been divided into various
sheets in order to allow an effective and quick reading according to the information being seeked.
In this manual all basic instructions for the instrument's installation and use are described. In the "Manual of installation,
maintenance and assistance" further explanations of all necessary subjects for a correct installation and mantainance
are provided

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1 - 3 RESPONSIBILITY AND VALIDITY
RESPONSIBILITY
QEM is free from any responsibility for damages to people or things due to unobservance of the instructions and
prescriptions contained in this manual and in the "Manual of installation, maintenance and assistance". We also state
that the customer/purchaser must use the instrument according to the instructions supplied by QEM and in case of
doubt he must send a written application to QEM. Any authorization for further use and replacement shall be deemed
as valid by QEM, in case of contestation, only if it has been written by QEM.
No reprinting or republishing or delivery to third parties of this manual or of its parts is authorized unless a written
authorization is provided by QEM. Any infraction shall provoke a request of indemnization for damages on behalf of
QEM.
All rights generated by patents or models are reserved.
QEM reserves the right to partially or integrally modify the characteristics of the instrument described and the enclosed
documentation.
Purpose
The purpose of this manual is to indicate the general rules to use the instrument described.
Indication
Write down and carefully store all parameters concerning the settings and programming of the instrument in order to
make easier the eventual operations of replacement and assistance.
VALIDITY
This manual can be applied to all designed instruments, built and tested by QEM and having the same ordering code.
This document is integrally valid except for mistakes or omissions.
Issued by the Person in Charge for the Documentation: ........................................................
Approved by the Person in Charge for the Product: ........................................................
Manual
Release
0 0 New manual 21 / 03 / 00
Modifications made to the Manual Modifications
Date

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IQ004
CHAPTER 2
DESCRIPTION
Instrument presentation
Technical, electrical and mechanical features

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2 - 1 INSTRUMENT PRESENTATION
The IQ004 is a serial interface designed and realised to be used in all applications where a connection between
different serial ports is needed (RS232C - RS422 or RS232C - RS485).
In case of interface with option MDX (interface RS232C - RS485, where X defines the transmission speed - see
ordering code), it is necessary to define some instrument's features.
Case A: IQ004 receives in RS485 and trasmits in RS232C: no limitation.
Case B: IQ004 receives in RS232C and transmits in RS485: it is necessary to introduce a delay time between one
character and the following, the delay being function of the transmission speed (refer to table).
Option Speed [baud] Delay time
MD1 4800 250 ms
MD2 9600 100 ms
MD3 19200 50 ms
MD4 38400 30 ms
For a correct functionality of the interface, the equipments connected to serial port RS485, once received the data,
must wait before transmit.
N.B. The instrument has passed levels required by the norms E.M.C. (valutation criterium "B"). With noise at
maximum level, it is not guaranteed the transmission for more than 95% of total time; it may happen one
interruption every 3 seconds of transmission.

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2 - 2 TECHNICAL, ELECTRICAL AND MECHANICAL FEATURES
Working enviroment
Temperature:.................................................... 0÷50 °C
Umidity:............................................................ 90% without condensation
Max altitude:..................................................... 2000 m s.l.m.
Atmosphere:..................................................... No corrosive gas
Storing and transport temperature:..................... -25÷70 °C
Protection rate of container:............................... IP41 (EN 60529)
Vibration resistance:.......................................... IEC 68-2-6 (Teoretical)
Impact resistance:............................................. IEC 68-2-27 (Teoretical)
Noise immunity:................................................ EN 50082-2
Emission level:.................................................. EN 50081-2
Technical specifications features are valid if all the indications explained in the "Manual of installation,
maintenance and assistance" have been respected.
Ac power supply IQ004
Instrument power supply:.................................................................. 24 or 110 or 220 Vac +/- 15% 50/60 Hz
Absorption in the maximum hardware configuration:............................ 3 VA
Dc power supply IQ004 (versione V)
Instrument power supply:.................................................................. 9÷18 Vdc
Max current:.................................................................................... 150 mA (power supply = 15 Vdc)
Serial ports
Corresponding to electrical standards defined by the serial type. Transmissio speed in RS232C - RS485 configuration
is defined by the ordering code.
Instrument type: ..............Closed container, dimensions 44 x 92 x 99 mm
Electrical connections: ....Estractible and polarised terminals with screws.
Æof wire: 0.2÷2.5 mm2
Weight:........................... 280 gr

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IQ004
CHAPTER 3
Inputs and outputs description
OPERATOR / MACHINE INTERFACE

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IQ004
3 - 1 INPUTS AND OUTPUTS DESCRIPTION
1
2
3
4
5
10
6
8
11
7
9
N.C. Not connected
TX Transmission RS 232C
RX Reception RS 232C
XXX Power supply voltage (Vac)
XXX Power supply voltage (Vac)
GND Ground connection
GND Ground RS 232C
TX/A Transmission RS422 or channel A RS 485 (DO/RI)
TX/B Negative transmission RS 422 or channel B RS 485 (DO/RI)
RX Reception RS 422
RX Negative reception RS 422
Connections with DC power supply
1
2
3
4
5
10
6
8
11
7
9
N.C. Not connected
TX Transmission RS 232C
RX Reception RS 232C
+ Positive power supply voltage Vdc (9 ÷ 18 Vdc).
- Negative power supply voltage Vdc (9 ÷ 18 Vdc).
GND Ground connection
GND Ground RS 232C
TX/A Transmission RS422 or channel A RS 485 (DO/RI)
TX/B Negative transmission RS 422 or channel B RS 485 (DO/RI)
RX Reception RS 422
RX Negative reception RS 422
NOTE
Powersupply voltagepolarities (+/ -),must respectwhat iswritten onthe terminals1 and2. Inversion
of polarities does not cause any kind of damage.