wtw MIQ/24V User manual

MIQ/24V
ba64114e02 08/2006
Accuracy when
going to press
The use of advanced technology and the high quality standard of our
instruments are the result of continuous development. This may result
in differences between this operating manual and your instrument.
Also, we cannot guarantee that there are absolutely no errors in this
manual. Therefore, we are sure you will understand that we cannot
accept any legal claims resulting from the data, figures or descriptions.
Copyright ©Weilheim 2006, WTW GmbH
Reprinting - even as excerpts - is only allowed with the explicit written
authorization of WTW GmbH, Weilheim.
Printed in Germany.

MIQ/24V List of contents
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MIQ/24V - List of contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 How to use this component operating manual . . . . . . . . 1-1
1.2 Features of the MIQ/24V . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 2-2
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 Installation in the IQ SENSOR NET . . . . . . . . . . . . . . . . . 3-1
3.3 Connecting the 24 V AC/DC supply . . . . . . . . . . . . . . . . 3-1
4 Maintenance and cleaning . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

List of contents MIQ/24V
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MIQ/24V Overview
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1 Overview
1.1 How to use this component operating manual
Structure of the IQ
SENSOR NET operating
manual
Fig. 1-1 Structure of the IQ SENSOR NET operating manual.
The IQ SENSOR NET operating manual has a modular structure like the
IQ SENSOR NET system itself. It consists of a system operating manual
and the operating manuals of all the components used.
Please file these component operating manuals into the ring binder of
the system operating manual.
IQ Sensor Net Operating Manual
System
Operating
Manual
(Ring Binder)
IQ Sensor
Operating
Manual
MIQ Module
Operating
Manual
MIQ Terminal
Operating
Manual
Component Operating Manuals

Overview MIQ/24V
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1.2 Features of the MIQ/24V
General characteristics The MIQ/24V power supply supplies the IQ SENSOR NET with its oper-
ational voltage. The operational voltage is forwarded to the consumers
in the following ways:
!In the case of stacked mounting, via the IQ SENSOR NET contacts on
the front and rear of the module
!In the case of distributed mounting, via the IQ SENSOR NET SNCIQ
cable
!In the case of sensors, via the SACIQ sensor connecting cable.
With the standard MIQ module housing, the MIQ/24V has the same
characteristics as all MIQ modules regarding stability, leakproofness
and weather resistance. It also provides the same wide variety of instal-
lation options (stacked mounting, canopy mounting, tophat rail
mounting, etc.).
Up to three power supply modules can be installed in an IQ SENSOR
NET system. The number of modules that are required depends on the
number of consumers in the system and their power requirement as
well as on the overall loss of power in the IQ SENSOR NET cables.
Instructions for determining the correct number of power modules are
given in the INSTALLATION chapter of the system operating manual.
Terminal strip The MIQ/24V has the following electrical connections on the terminal
strip inside the housing:
!1 x 24 V AC/DC, two-pole
!3 x SENSORNET connection.

MIQ/24V Safety instructions
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2 Safety instructions
This component operating manual contains special instructions that
must be followed during the installation of the MIQ/24V power supply
module. Thus, it is essential to read this component operating manual
before carrying out any work with the system. In addition to this manual,
the SAFETY chapter of the IQ SENSOR NET system operating manual
must be followed.
Always keep this component operating manual together with the
system operating manual and all other component operating manuals
in the vicinity of the IQ SENSOR NET system.
Special user
qualifications
The MIQ/24V may only be connected to the 24 V AC/DC supply by a
trained electrician.
General safety
instructions
Safety instructions in this operating manual are identified by the
warning symbol (triangle) in the left column. The signal word (e. g.
"Caution") indicates the level of danger:
Warning
indicates instructions that must be followed precisely in order to
prevent serious dangers to persons.
Caution
indicates instructions that must be followed precisely in order to
avoid slight injuries or damage to the instrument or the
environment.
Other labels
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. operating manu-
als.

Safety instructions MIQ/24V
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2.1 Authorized use
The authorized use of the MIQ/24V consists of its use as a power
supply module in the IQ SENSOR NET.
The technical specifications given in chapter 5 TECHNICAL DATA must
be observed. Only operation according to the instructions in this
component operating manual is authorized.
Any other use is considered to be unauthorized. Unauthorized use
invalidates any claims with regard to the guarantee.
2.2 General safety instructions
The MIQ/24V is constructed and inspected in accordance with the
relevant guidelines and norms for electronic instruments (see
chapter 5 TECHNICAL DATA).
It left the factory in a safe and secure technical condition.
Function and
operational safety
The failure-free function and operational safety of the MIQ/24V is only
guaranteed if the generally applicable safety measures and the special
safety instructions in this operating manual are followed during its use.
The failure-free function and operational safety of the MIQ/24V is only
guaranteed under the environmental conditions that are specified in
chapter 5 TECHNICAL DATA.
Safe operation If safe operation is no longer possible, the MIQ/24V must be taken out
of operation and secured against inadvertent operation.
Safe operation is no longer possible if the MIQ/24V:
!has been damaged during transport
!has been stored under adverse conditions for a lengthy period of
time
!is visibly damaged
!no longer operates as described in this manual.
If you are in any doubt, contact the supplier of your MIQ/24V.

MIQ/24V Installation
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3 Installation
3.1 Scope of delivery
The scope of delivery of the MIQ/24V is listed in the INSTALLATION
chapter of the system operating manual.
3.2 Installation in the IQ SENSOR NET
The IQ SENSOR NET provides a number of options for integrating the
MIQ/24V mechanically and electrically in the system (stacked
mounting, distributed mounting, etc.). The individual types of instal-
lation are described in detail in the INSTALLATION chapter of the system
operating manual.
Note
To achieve optimum heat transfer, it is recommended to always place
the power supply module at the back of a module stack.
Note
If there are several power supply modules in the IQ SENSOR NET, it is
helpful if all the power supply modules are connected to a single power
supply. As a result, the system can be easily switched on and off from
a single location.
3.3 Connecting the 24 V AC/DC supply
Warning
If the power supply is connected incorrectly, it may represent a
danger to life from electric shock. Pay attention to the following
points during installation:
!
!!
!The power supply must fulfill the specifications given on the
nameplate and in chapter 5 TECHNICAL DATA (Safety Extra Low
Voltage SELV).
!
!!
!The MIQ/24V may only be connected to the 24 V AC/DC supply
by a trained electrician.
!
!!
!The connection of the MIQ/24V may only be carried out when
the supply is not carrying any voltage.
!
!!
!When installed in a building, a switch or power switch must be
provided as a disconnecting device for the MIQ/24V.
The interrupt facility must:
– be installed in the vicinity of the MIQ/24V, easily accessible
by the user, and
– identified as a disconnecting device for the MIQ/24V.

Installation MIQ/24V
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Note
Battery systems should be protected against total discharge. The
MIQ/24V does not have an integrated protection against total dis-
charge.
General installation
instructions
Follow these instructions when connecting the connecting wires to the
terminal strip:
!Shorten all the wires to be used to the length required for the instal-
lation
!Always fit all the ends of the wires with wire end sleeves before con-
necting them to the terminal strip
!Any wires that are not used and project into the housing must be cut
off as closely as possible to the cable gland.
Warning
No free wires must be allowed to project into the housing. Other-
wise, there is a danger of electric short circuit that may cause fire.
Always cut off any wires that are not in use as closely as possible
to the cable gland.
Materials required !Wire end sleeves, suitable for the power line, with suitable crimping
tool
!1 x cable gland with sealing ring (included in scope of delivery of
MIQ/24V).
Tools !Cable stripping knife
!Wire stripper
!Phillips screw driver
!Small screw driver.
Preparing the
24 V AC/DC line
Fig. 3-1 Prepared 24 V AC/DC cable.
1 Cut off the cable to the required length.
2 Strip the cable insulation for approx. 45 mm.
3 Bare the wires 1 and 2 and fit them with wire end sleeves.
ca. 45 mm
wire 1
wire 2