wtw MIQ/CR3 User manual

ba64107e08 05/2006
MIQ/CR3
DIQ/CR3
Operating manual
Power !
OK
IQ SENSOR NET combi output module
Oxley Creek WWTP Water Reclamation (WTW - ba64107e08_xIQ_CR3) Vendor Manual
Doc Id: VM20
Owner: Howard Witten
Active Date: 15/12/2006

MIQ/CR3; DIQ/CR3
ba64107e08 05/2006
Accuracy when
going to press
The use of advanced technology and the high quality standard of our
instruments are the result of continuous development. Consequently,
this may result in some 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.
Note
The latest version of the present operating manual can be found on the
Internet under www.WTW.com.
Copyright ©Weilheim 2006, WTW GmbH
Reprinting - even as excerpts - is only allowed with the explicit written
authorization of WTW GmbH, Weilheim.
Printed in Germany.
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Doc Id: VM20
Owner: Howard Witten
Active Date: 15/12/2006

MIQ/CR3; DIQ/CR3 List of contents
0 - 1
ba64107e08 05/2006
MIQ/CR3; DIQ/CR3 - List of contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 How to use this component operating manual . . . . . . . . 1-1
1.2 Features of the combi output module . . . . . . . . . . . . . . . 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
3.2.1 Software requirements of the MIQ/CR3 and IQ
SENSOR NET . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.3 Connections to the relay and current outputs . . . . . . . . 3-2
4 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 Basic information on relay functions . . . . . . . . . . . . . . . 4-2
4.1.1 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.1.2 Limit indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.1.3 Proportional output . . . . . . . . . . . . . . . . . . . . . . 4-5
4.2 Entering / editing the name of an output . . . . . . . . . . . 4-12
4.3 Linking the output with a sensor . . . . . . . . . . . . . . . . . . 4-13
4.4 Deleting a link with an output . . . . . . . . . . . . . . . . . . . . 4-14
4.5 Setting the relay outputs . . . . . . . . . . . . . . . . . . . . . . . 4-15
4.5.1 Relay action . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.5.2 System monitoring . . . . . . . . . . . . . . . . . . . . . 4-17
4.5.3Sensor monitoring . . . . . . . . . . . . . . . . . . . . . . 4-18
4.5.4 Limit indicator . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
4.5.5 Frequency output . . . . . . . . . . . . . . . . . . . . . . 4-21
4.5.6 Pulse-width output . . . . . . . . . . . . . . . . . . . . . . 4-22
4.5.7 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
4.5.8 Sensor-controlled . . . . . . . . . . . . . . . . . . . . . . 4-26
4.5.9 Manual control . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
4.5.10 Alarm contact . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
4.6 Setting of current outputs . . . . . . . . . . . . . . . . . . . . . . . 4-28
4.6.1 Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
4.6.2 PID controller . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.6.3 Fixed current value . . . . . . . . . . . . . . . . . . . . . 4-36
4.7 Checking the status of the outputs . . . . . . . . . . . . . . . . 4-37
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List of contents MIQ/CR3; DIQ/CR3
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4.8 Behavior of linked outputs . . . . . . . . . . . . . . . . . . . . . .4-38
4.8.1 Behavior in case of error . . . . . . . . . . . . . . . . .4-38
4.8.2 Behavior in non-operative condition . . . . . . . .4-39
4.9 Maintenance condition of sensors . . . . . . . . . . . . . . . .4-40
4.9.1 Switching on the maintenance condition . . . . .4-41
4.9.2 Switching off the maintenance condition . . . . .4-41
5 Maintenance and cleaning . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
6 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
7 Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1 Explanation of the messages . . . . . . . . . . . . . . . . . . . . .7-1
7.1.1 Error messages . . . . . . . . . . . . . . . . . . . . . . . . .7-1
7.1.2 Info messages . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
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MIQ/CR3; DIQ/CR3 Overview
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1Overview
1.1 How to use this component operating manual
Structure of the IQ
SENSOR NET operating
manual
Fig. 1-1 Structure of the IQ SENSORNET operating manual
The IQ SENSOR NET operating manual has a modular structure like the
IQ SENSOR NET itself. It consists of a system operating manual and the
operating manuals of all the components used.
Please file this component operating manual 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
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Overview MIQ/CR3; DIQ/CR3
1 - 2 ba64107e08 05/2006
1.2 Features of the combi output module
General characteristics The combi output module has three current outputs and three relay
outputs. You can link current outputs and relay outputs to sensors. The
linked current outputs and relay outputs can, for example, be used to
monitor sensors or to output measurement data. Unlinked relay outputs
can be used for general monitoring functions.
With the standard MIQ module housing, the combi output module has
the same characteristics as all MIQ modules regarding stability,
leakproofness and weather resistance. It also provides the same wide
variety of installation options (stacked mounting, canopy mounting,
tophat rail mounting, etc.).
Instrument types The MIQ/CR3 and DIQ/CR3 combi output modules differ in their
compatibility with the individual IQ SENSOR NET system families.
Terminal strip The combi output module has the following electrical connections on
the terminal strip inside the housing:
!3 x relay contact
!3 x current output
!2 x SENSORNET connection
System Compatible combi output module
184 XT and 2020 XT MIQ/CR3
182 DIQ/CR3
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MIQ/CR3; DIQ/CR3 Safety instructions
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2 Safety instructions
This operating manual contains special instructions that must be
followed during the installation of the combi output module. Thus, it is
essential for the operator 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
External circuits carrying mains voltage must only be connected to the
relay contacts by a qualified electrician.
General safety
instructions
Safety instructions in this operating manual are indicated by the
warning symbol (triangle) in the left column. The signal word (e.g.
"Caution") indicates the danger level:
Warning
indicates instructions that must be followed precisely in order to
prevent serious dangers to personnel.
Caution
indicates instructions that must be followed precisely in order to
avoid slight injuries to personnel or damage to the instrument or
the environment.
Other labels
Note
This symbol indicates instructions that describe special features.
Note
indicates cross-references to other documents, e.g. operating
manuals.
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Safety instructions MIQ/CR3; DIQ/CR3
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2.1 Authorized use
The authorized use of the combi output module consists of providing
relay and current outputs in the IQ SENSOR NET.
Please observe the technical specifications according to chapter 6
TECHNICAL DATA. Only operation according to the instructions in this
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 combi output module is constructed and inspected according to the
relevant guidelines and norms for electronic instruments (see chapter
6 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 combi output
module 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 combi output
module is only guaranteed under the environmental conditions that are
specified in chapter 6 TECHNICAL DATA.
Safe operation If safe operation is no longer possible, the combi output module must
be taken out of operation and secured against inadvertent operation.
Safe operation is no longer possible if the combi output module:
!has been damaged in 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 combi output
module.
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MIQ/CR3; DIQ/CR3 Installation
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3 Installation
3.1 Scope of delivery
The scope of delivery of the combi output module 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
combi output module mechanically and electrically in the system
(stacked mounting, distributed mounting, etc.). The various types of
installation are described in detail in the INSTALLATION chapter of the
system operating manual.
3.2.1 Software requirements of the MIQ/CR3 and IQ SENSOR NET
Software requirements for the use of the Cleaning function:
!MIQ/CR3: from version 2.20 up
!Controller: from version 2.20 up
If you use a terminal with a software version from 2.20 up, the Clean
display flashes. If you use an MIQ/T2020 terminal with a software
version lower than 2.20, the Clean display does not appear.
The measured value display of the sensor flashes.
Software requirements for use of the functions, PID controller, Manual
control and Fixed current value:
!MIQ/CR3: from version 2.30 up
Note
It is possible to update the software if your components have older
software versions. Please contact WTW.
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Installation MIQ/CR3; DIQ/CR3
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3.3 Connections to the relay and current outputs
Warning
If external electrical circuits that are subject to the danger of
physical contact are incorrectly connected to the relay contacts,
there may be a danger of life threatening electric shock. Electrical
circuits are regarded to be subject to the danger of physical
contact when there are voltages higher than the Safety Extra Low
Voltage (SELV).
Pay attention to the following points during installation:
!
!!
!Electrical circuits subject to the danger of physical contact
must only be connected by a qualified electrician.
!
!!
!Electrical circuits subject to the danger of physical contact
must only be connected when they are voltage-free.
!
!!
!If electrical circuits subject to the danger of physical contact
are switched with a relay, no circuit that is not subject to this
danger (e. g. the MIQ/CHV module) may be operated in the
same output module. Use an additional output module for such
applications.
!
!!
!Switching voltages and switching currents on the relay
contacts must not exceed the values specified in chapter 6
TECHNICAL DATA. Protect electrical circuits against currents that
are too high with an electrical fuse.
!
!!
!Only single-phase consumers can be switched with the relays.
Under no circumstances must multiphase consumers be
switched with the aid of several relays (example three-phase
current driven pumps). Always switch multiphase consumers
via a protective relay.
!
!!
!After the output module has been installed, it may only be
opened if all external voltages have been switched off
beforehand.
General installation
instructions
Observe the following instructions when attaching connecting wires to
the terminal strip:
!Shorten all the wires used to the length required for the installation.
!Basically, fit all wire ends with wire end sleeves before connecting
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.
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MIQ/CR3; DIQ/CR3 Installation
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Warning
No free wires must be allowed to project into the enclosure.
Otherwise, there is a danger that safe areas could come into
contact with dangerous voltages. This could result in life
threatening electric shock when working with the IQ SENSOR NET.
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 connecting wires, with suitable
crimping tool
!4 x screwed cable gland with sealing ring (scope of delivery of the
combi output module).
Tools !Cable stripping knife
!Wire stripper
!Phillips screw driver
!Small screw driver
Connecting lines to the
terminal strip
Fig. 3-1 Terminal strip with the relay and current connections
1Open the module.
1
3
2
2
2
Relay Current output
X18 X17
250 VAC
5AAC
R1
X16 X15
250 VAC
5AAC
R2
X14 X13
250 VAC
5AAC
R3
X12 X10 X8X11 X9 X7
0/4...20mA 0/4...20mA 0/4...20mA
+ REC -
C1
+ REC -
C2
+ REC -
C3
X6 X5 X4
SENSORNET 2
RED
ROT
SHIELD
SCHIRM
GREEN
GRÜN
X3 X2 X1
SENSORNET 1
RED
ROT
SHIELD
SCHIRM
GREEN
GRÜN
ON
EIN
OFF
AUS
SN TERMINATOR
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Installation MIQ/CR3; DIQ/CR3
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Warning
No free wires must be allowed to project into the enclosure.
Otherwise, there is a danger that safe areas could come into
contact with dangerous voltages. This could result in life
threatening electric shock when working with the IQ SENSOR NET.
Always cut off any wires that are not in use as closely as possible
to the cable gland.
Fig. 3-2 Closing the cable opening
2Screw the cable gland (pos. 1 in Fig. 3-1) with the sealing ring
(pos. 2) into the module housing.
3 Loosen the coupling ring (pos. 3 in Fig. 3-1).
4Feed the line through the cable gland in the module housing.
5 Connect the wires to the terminal strip. While doing so, pay
attention to the specifications on the label located under the
terminal strip.
6Tighten the coupling ring (pos. 3 in Fig. 3-1).
7Close the module.
8Screw the remaining cable glands with the sealing rings into
the remaining free openings. Close them with the provided
blind plugs (pos. 4 in Fig. 3-2) and tighten the coupling rings
(pos. 3) if they are not used.
4
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MIQ/CR3; DIQ/CR3 Settings
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4 Settings
The combi output module has three relays outputs and three current
outputs.
!Relay outputs operate as openers or closers.
!Current outputs provide a current that depends on the measured
value.
On the terminal or Universal Transmitter, you can
!assign names to the outputs (with the 184 XT and 2020 XT system
only, see section 4.2).
!link outputs with sensors (see section 4.3)
!delete links of outputs with sensors (see section 4.4)
!adjust outputs (see section 4.5 and section 4.6)
!check the condition of the outputs (see section 4.7)
Basic information on how to use relay outputs is given in section 4.1.
Note
The general operating principles are given in the relevant system
operating manual or in the component operating manual of the terminal
components.
Functions of current and
relay outputs
Relay output (see section 4.5)
!System monitoring
!Sensor monitoring
!Limit indicator
!Frequency output
!Pulse-width output
!Cleaning
!Sensor-controlled
!Manual control
!Alarm contact (with the 184 XT and 2020 XT systems only)
Current output (see section 4.6)
!Recorder
!PID controller
!Fixed current value
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Settings MIQ/CR3; DIQ/CR3
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4.1 Basic information on relay functions
In this chapter, you will find general basic information concerning the
following relay functions:
!Monitoring (see section 4.1.1)
!Limit indicator (see section 4.1.2)
!Proportional output (see section 4.1.3)
4.1.1 Monitoring
When using a relay for monitoring, a relay action (Open, Close) occurs
when certain states occur. This function is suitable, e.g. for the
monitoring of errors in the system.
Note
For monitoring functions, use the relay preferably as an opener (see
section 4.5.1). In the case of an error, the relay opens. As a result, the
monitoring function operates even if, e.g. the supply voltage fails.
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MIQ/CR3; DIQ/CR3 Settings
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4.1.2 Limit indicator
With a limit indicator, a relay switches when a specified limiting value is
exceeded or undercut.
Limit indicators can be used in the following way:
!Monitoring a limiting value using a relay:
when a limiting value (upper or lower limiting value) is exceeded or
undercut, a relay switches. The Open or Close relay actions are
possible in each case (see page 4-4).
!Monitoring two limiting values using two relays:
If the upper limiting value is exceeded or undercut, a relay switches,
and if the lower limiting value is exceeded or undercut, another relay
switches. The Open or Close relay actions are possible in each case
(see page 4-4).
Note
If the simple monitoring function (Open, Close) with one or two relays
is not sufficient, use proportional output (see section 4.1.3).
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Settings MIQ/CR3; DIQ/CR3
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Monitoring limiting
values using one or two
relays
Fig. 4-1 Switching points for relays with the function of a limit indicator
A switching delay (t) can be set up for each relay for switching
processes. This is the time period for which a limiting value must be
exceeded before the relay switches. This prevents frequent switching if
the measured values are close to the limiting value.
1Upper limit value (relay 1) exceeded
2Selected switching delay t1 for relay 1 expired
Relay 1 switches
3Hysteresis for upper limiting value (relay 1) undercut
4Selected switching delay t1 for relay 1 expired
Relay 1 switches back
5Lower limit value (relay 2) undercut
Selected switching delay t2 for relay 2 expired
Relay 2 switches
6Hysteresis for lower limiting value (relay 2) exceeded
Selected switching delay t2 for relay 2 expired
Relay 2 switches back
Time
Measured
value
UL
LL
Hysteresis UL
Hysteresis LL
3
5
Relay 1
Relay 2
4
1
2
t1
t1
6
t2 t2
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MIQ/CR3; DIQ/CR3 Settings
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4.1.3 Proportional output
In the case of proportional output, a relay switches cyclically on and off
in a defined measured value range (proportional range). At the same
time, the relay switches with a:
!duration of operation that corresponds to the measured value
(pulse-width output, see page 4-7) or
!switching frequency (frequency output, see page 4-8).
Proportional outputs can be used in the following way:
!Output with one relay:
An output range is defined with a Start value and an End value. No
output takes place above and below the output range
(see page 4-6).
!Output with two relays:
An output range is defined for each relay with a Start value and an
End value. One relay outputs in the upper output range and a further
relay in the lower output range (see page 4-6).
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Settings MIQ/CR3; DIQ/CR3
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Output with one relay
Fig. 4-2 Output with one relay
Output with two relays
Fig. 4-3 Output with two relays
10
100
Proportional
band
Measured value
12
90
0
Switching frequency f or
Pulse vwidth
1Start value
Measured value with a minimum pulse width or switching
frequency
2End value
Measured value with a maximum pulse width or switching
frequency
Proportional bands
Relay 1 and 2
Measured value
Relay 1 Relay 2
1
22
1
10
100
90
0
Switching frequency f or
Pulse vwidth
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MIQ/CR3; DIQ/CR3 Settings
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Pulse width output The output of the pulse width is used, e.g. for controlling valves.
Pulse-width regulation changes the duration of operation (ton) of the
output signal. Depending on the position of the measured value in the
proportional range, the relay is operated for a longer or shorter time
period.
Fig. 4-4 Relay output of the pulse-width output
The cycle duration (T) is made up of the turn-on and turn-off switching
duration (ton, toff) of the relay together. While the selected cycle
duration (T) remains constant, the turn-on duration (ton) changes
depending on the measured value and, with it, the pulse width (v). The
pulse width can be set from 0 % to 100 %.
v = (ton / T) * 100 %
v = pulse width, T = cycle duration, ton = turn-on duration
!If the measured value is at the end of the proportional range (End
value), the turn-on duration (ton) is long, the turn-off duration is short.
This means the relay operates for a longer period.
!If the measured value is at the beginning of the proportional range
(Start value), the turn-on duration (ton)is short, and the relay
operates for a correspondingly shorter period.
Note
If the duration of the closing or opening pulse is shorter than 0.1 s, the
relay remains open or closed for the complete cycle duration.
TTime [s]
Relay
Off
On
tOn tOff
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Settings MIQ/CR3; DIQ/CR3
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Frequency output Switching frequency output is used, e.g. for controlling dosing pumps.
In contrast to the pulse-width output, not the pulse width is modulated
with frequency output but the switching frequency of the output signal.
Depending on the position of the measured value in the proportional
range, the relay is switched more often or less often.
Fig. 4-5 Relay output of frequency output
While the selected switching duration (ton = 0.3 s) always remains
constant, the switching frequency at which the relay switches changes
depending on the measured value.
!If the measured value is at the end of the proportional range (End
value), the switching frequency is higher.
!If the measured value is at the beginning of the proportional range
(Start value), the switching frequency is low.
Time [s]
t = 0.3 s
On
Relay
Off
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Oxley Creek WWTP Water Reclamation (WTW - ba64107e08_xIQ_CR3) Vendor Manual
Doc Id: VM20
Owner: Howard Witten
Active Date: 15/12/2006