KROHNE SU 501 Ex User manual

SU 501 Ex Handbook
Switch Amplier
Controller

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Contents
SU 501 Ex • Controller
27953-EN-191108
Contents
1 About this document ............................................................................................................... 3
1.1 Function ........................................................................................................................... 3
1.2 Target group ..................................................................................................................... 3
1.3 Symbols used................................................................................................................... 3
2 For your safety ......................................................................................................................... 4
2.1 Authorised personnel ....................................................................................................... 4
2.2 Appropriate use................................................................................................................ 4
2.3 Warning about incorrect use............................................................................................. 4
2.4 General safety instructions............................................................................................... 4
2.5 CE conformity................................................................................................................... 5
2.6 Installation and operation in the USA and Canada ........................................................... 5
2.7 Safety instructions for Ex areas ........................................................................................ 5
3 Product description ................................................................................................................. 6
3.1 Conguration.................................................................................................................... 6
3.2 Principle of operation........................................................................................................ 6
3.3 Adjustment ....................................................................................................................... 7
3.4 Packaging, transport and storage..................................................................................... 7
4 Mounting................................................................................................................................... 8
4.1 General instructions ......................................................................................................... 8
4.2 Mounting instructions ....................................................................................................... 8
5 Connecting to power supply................................................................................................. 11
5.1 Preparing the connection ............................................................................................... 11
5.2 Connection procedure.................................................................................................... 11
5.3 Wiring plan ..................................................................................................................... 12
6 Setup ....................................................................................................................................... 13
6.1 Adjustment system......................................................................................................... 13
6.2 Adjustment elements...................................................................................................... 14
6.3 Function table................................................................................................................. 17
7 Maintenanceandfaultrectication...................................................................................... 19
7.1 Maintenance .................................................................................................................. 19
7.2 Rectify faults................................................................................................................... 19
7.3 How to proceed if a repair is necessary.......................................................................... 21
8 Dismount................................................................................................................................. 22
8.1 Dismounting steps.......................................................................................................... 22
8.2 Disposal ......................................................................................................................... 22
9 Supplement ............................................................................................................................ 23
9.1 Technical data ................................................................................................................ 23
9.2 Dimensions .................................................................................................................... 25
9.3 Trademark ...................................................................................................................... 26
Editing status: 2019-11-08

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1 About this document
SU 501 Ex • Controller
27953-EN-191108
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance,faultrectication,theexchangeofpartsandthesafetyofthe
user. Please read this information before putting the instrument into
operation and keep this manual accessible in the immediate vicinity
of the device.
1.2 Target group
This operating instructions manual is directed to trained personnel.
Thecontentsofthismanualmustbemadeavailabletothequalied
personnel and implemented.
1.3 Symbols used
Information, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

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2 For your safety
SU 501 Ex • Controller
27953-EN-191108
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
onlybytrained,qualiedpersonnelauthorisedbytheplantoperator.
During work on and with the device, the required personal protective
equipment must always be worn.
2.2 Appropriate use
SU 501 Ex is a universal controller for connection of level switches.
Youcannddetailedinformationabouttheareaofapplicationin
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives. The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed and their meaning read in this oper-
ating instructions manual.

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2 For your safety
SU 501 Ex • Controller
27953-EN-191108
2.5 CE conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmsuccessfultestingofthe
product.
2.6 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.
2.7 Safety instructions for Ex areas
For Ex applications, only devices with corresponding Ex approval may
beused.ObservetheEx-specicsafetyinstructions.Thesearean
integral part of the operating instructions and are enclosed with every
device with Ex approval.

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3 Product description
SU 501 Ex • Controller
27953-EN-191108
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Controller SU 501 Ex
• Terminal socket
• Bridges (4 pieces)
• Coding pins (2x)
• Ex label
• Ex separating chamber
• Documentation
– This operating instructions manual
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
The SU 501 Ex consists of:
• Controller SU 501 Ex
56 78
910121314
TEST
on
3
1
2
Fig. 1: SU 501 Ex
1 Ex separating chamber with Ex version
2 Terminal socket
3 Transparent cover
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
• Article number
• Serial number
• Technical data
• Article numbers, documentation
3.2 Principle of operation
SU 501 Ex is a single controller for processing of vibrating level
switches.
Scope of delivery
Constituent parts
Type label
Application area

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3 Product description
SU 501 Ex • Controller
27953-EN-191108
The SU 501 Ex controller powers connected sensors and simultane-
ously processes their measuring signals.
When the medium reaches the switching point of the sensor, the sen-
sor current changes.This is measured and evaluated by SU 501 Ex.
The change causes the output relays to switch according to the set
operating mode.
Wide range power supply unit with 20 … 253 V AC/DC for worldwide
use.
Detailed information about the power supply can be found in chapter
"Technical data".
3.3 Adjustment
All adjustment elements are located under a hinged front cover. The
operating mode and the switching delay can be set via a DIL switch
block. In addition, the correct function of the measuring system can
be checked with a test key.
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
• Not in the open
• Dry and dust free
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
• Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
• Relative humidity 20 … 85 %
Functional principle
Voltage supply
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature

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4 Mounting
SU 501 Ex • Controller
27953-EN-191108
4 Mounting
4.1 General instructions
SU 501 Ex controller with plug-in socket for mounting on carrier rail
according to EN 50022.
The front plate of SU 501 Ex can be provided with a lead-sealable
transparent cover to protect the instrument against unauthorised or
inadvertentadjustment.Seethefollowinggureonhowtoremovethe
transparent cover.
Fig. 2: Removing the transparent cover
For moisture-protected mounting outside the switching cabinet, we
oeraninsulatedprotectivehousingwithtransparentcover(IP65)for
surface mounting.
In this housing you can mount a maximum of 3 instruments of 36 mm
width.
4.2 Mounting instructions
The plug-in socket is constructed for carrier rail mounting according to
EN 50022. Operating voltage is connected to terminals 9 and 10. For
neighbouring controllers, it is possible to continue connection L1 and
N directly via the supplied bridges.
Danger:
The bridges must never be used with single instruments or at the end
of a row of instruments. If this rule is not heeded, there is a danger
of coming into contact with the operating voltage or causing a short
circuit.
A SU 501 Ex in Ex version is an auxiliary, intrinsically safe instrument
and may not be installed in explosion-endangered areas.
Installation location
Transparent cover
Housing IP65
Installation

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4 Mounting
SU 501 Ex • Controller
27953-EN-191108
Before setup, the Ex separating chamber must be attached (as shown
below) with Ex versions. Safe operation can be only ensured if the
operatinginstructionsmanualandtheEGtypeapprovalcerticate
are observed. SU 501 Ex must not be opened.
Close the upper terminals according to the following illustration.
12 43
Fig. 3: Mounting the separating chamber
Allcontrollersareprovidedwithdierentgapsdependingontypeand
version (mechanical coding).
The plug-in socket is provided with coded pins that can be inserted to
prevent accidental interchanging of the various instrument types.
With a SU 501 Ex in Ex version, the supplied coded pins (type coded
pin and Ex coded pin) must be inserted by the user according to the
below table.
Ex separating chamber
Instrument coding

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4 Mounting
SU 501 Ex • Controller
27953-EN-191108
Typ 600-1
56 78
141312109
4321
EEx ia
+
-
L1
N
DISBUS
0...10V
9
8
7
3
2
1
C
B
A
12
Plug-in socket
2
1
3
4
Fig. 4: Plug-in socket SU 501 Ex
1 Bridges for looping the operating voltage
2 Type coding for SU 501 Ex
3 Ex coding with Ex version
4 Ex separating chamber