Visual Display and Operating Unit
URB 60
EN
English
Original Installation &
Operating Manual
819699-00
Contents
Content of this Manual .................................................................................................................................... 5
Scope of delivery/Product package ................................................................................................................5
How to use this Manual ................................................................................................................................... 6
Illustrations and symbols used ....................................................................................................................... 6
Hazard symbols in this Manual .......................................................................................................................6
Types of warning .............................................................................................................................................7
URB 60 specialist terms and abbreviations ...................................................................................................8
Usage for the intended purpose .................................................................................................................... 11
IT security and rules for the use of Ethernet devices .................................................................................11
Applicable directives and standards .......................................................................................................... 11
Improper use .................................................................................................................................................12
Basic safety notes ......................................................................................................................................... 12
Required personnel qualifications ................................................................................................................ 13
Notes on product liability .............................................................................................................................. 13
Function ......................................................................................................................................................... 14
Limitations ................................................................................................................................................14
Technical data ...............................................................................................................................................15
Factory settings ............................................................................................................................................. 16
Name plate/identification..............................................................................................................................17
Dimensions of the URB 60 ............................................................................................................................. 18
Installation instructions ................................................................................................................................ 18
Ports and sockets on the URB 60 ..................................................................................................................19
Connecting the supply voltage......................................................................................................................20
Connecting the CAN bus system ...................................................................................................................20
Bus line, cable length and cross-section ...................................................................................................20
Important notes on connecting the CAN bus system .................................................................................. 21
Pin assignment of the CAN bus connector and coupling for non pre-wired
control cables ........................................................................................................................................... 22
Operation and navigation .............................................................................................................................. 23
User interface (example) ........................................................................................................................... 23
Operation ..................................................................................................................................................23
Colour coding of input and status fields ....................................................................................................24
Automatic functions .................................................................................................................................. 24
Entering parameters using the virtual keypad ...........................................................................................25
Entering parameters with multilevel password security ............................................................................. 25
Scroll bar for long lists and menus ............................................................................................................ 26
General recurring icons and functions ....................................................................................................... 26
2 URB 60 - Installation & Operating Manual - 819699-00
Contents
Starting up for the first time ......................................................................................................................... 27
Setup Wizard settings ............................................................................................................................... 27
Bringing the boiler, feedwater/condensate tank into service (Group 1..3) ................................................. 28
Home screen .................................................................................................................................................. 29
Alarms and error messages .......................................................................................................................... 31
Opening the Alarm History - the complete list of all alarms .......................................................................32
Opening the alarm and error list automatically .......................................................................................... 32
System settings ............................................................................................................................................. 33
Viewing CAN bus nodes.................................................................................................................................34
Setting the date/time.....................................................................................................................................35
Password .......................................................................................................................................................35
Network settings ........................................................................................................................................... 36
Remote maintenance/software.....................................................................................................................36
Device settings .............................................................................................................................................. 37
System information ....................................................................................................................................... 39
Selecting the language ..................................................................................................................................40
Configuring the level controller ....................................................................................................................41
Testing the relays of the connected level controller ...................................................................................42
Pump control ............................................................................................................................................ 42
Setting manual control or the control point for manual pump operation ..................................................... 43
Switching actuator operation between automatic and manual ................................................................... 43
Valve calibration in manual mode when a feedback potentiometer is connected to the NRR 2-60 ............44
Calibrating the boiler level ........................................................................................................................45
Setting the level controller ........................................................................................................................46
Guide to setting control parameters .......................................................................................................... 46
Setting the level controller for 3-component control .................................................................................. 47
Configuring the conductivity controller ........................................................................................................ 48
Standby mode ..........................................................................................................................................49
Testing the relays of the connected conductivity controller ........................................................................49
Continuous blowdown valve ......................................................................................................................50
Continuous blowdown valve - Calibrating the feedback potentiometer for the valve position display ......... 51
Setting the intermittent blowdown and automatic flush function ............................................................... 52
Setting a correction factor and temperature compensation for the current conductivity reading ................ 53
Setting safety parameters ......................................................................................................................... 54
Setting the control parameters .................................................................................................................. 55
Guide to setting control parameters .......................................................................................................... 55
3URB 60 - Installation & Operating Manual - 819699-00
Contents
Opening the limiter overview ........................................................................................................................ 56
Setting safety parameters ......................................................................................................................... 57
Testing the limiter .....................................................................................................................................58
System malfunctions ..................................................................................................................................... 59
Display of system malfunctions in the alarm and error list using fault codes .............................................59
Fault codes for the URS 60/URS 61 safety control unit .........................................................................59
Fault codes for the NRR 2-60 / NRR 2-61 level controller,
LRR 1-60 conductivity controller and URW 60 universal converter ........................................................60
Common faults during use ........................................................................................................................ 62
What to do in the event of system malfunctions..........................................................................................62
Checking installation and function ............................................................................................................62
Data exchange via Modbus TCP ...................................................................................................................63
Taking out of service .....................................................................................................................................63
Disposal .........................................................................................................................................................63
Returning decontaminated equipment ......................................................................................................... 64
EU Declaration of Conformity ........................................................................................................................64
4 URB 60 - Installation & Operating Manual - 819699-00
Content of this Manual
Product:
Visual Display and Operating Unit URB 60
First edition:
BAN 819699-00/08-2019cm
Applicable documents:
®
Eaton
Installation Manual MM/YY IL048007ZU
© Copyright
All rights reserved. Any misuse, particularly reproduction and dissemination to third parties, is not permitted. The General Terms & Conditions of GESTRA AG apply.
Scope of delivery/Product package
1 x URB 60 visual display and operating unit
6 x retaining clips
1 x power supply connector
1 x URB 60 data cable with integrated 120 Ω terminating resistor
1 x Eaton® Installation Manual MM/YY IL048007ZU
1 x Installation & Operating Manual
5URB 60 - Installation & Operating Manual - 819699-00
How to use this Manual
This Installation & Operating Manual describes the correct use of the URB 60 visual display and operating
unit. It applies to all persons who integrate this equipment in control systems, install, bring into service,
operate, maintain and dispose of this equipment. Anyone carrying out the above-mentioned activities
must have read this Installation & Operating Manual and understood its contents.
Read this Manual in full and follow all instructions.
Please also read the instructions for use of any accessories.
The Installation & Operating Manual is part of the equipment package. Keep it in an easily accessible
location.
Availability of this Installation & Operating Manual
Make sure this Installation & Operating Manual is always available to the operator.
If you pass on or sell the equipment to a third party, please also hand over the Installation & Operating
Manual.
Illustrations and symbols used
1. Action to be taken
2.
Lists
Bullet points in lists
A Keys to illustrations
Additional
information
Read the relevant
Installation & Operating Manual
Hazard symbols in this Manual
Danger zone/Dangerous situation
Danger of death from electric shock
6 URB 60 - Installation & Operating Manual - 819699-00
Types of warning
DANGER
Warning of a dangerous situation that results in death or serious injury.
WARNING
Warning of a dangerous situation that may possibly result in death or serious injury.
CAUTION
Warning of a situation that may result in minor or moderate injury.
ATTENTION
Warning of a situation that results in damage to property or the environment.
7URB 60 - Installation & Operating Manual - 819699-00
URB 60 specialist terms and abbreviations
Here, we explain some abbreviations, specialist terms, etc., which are used in this Manual.
CAN (Controller Area Network) bus
Data transmission standard and interface for connecting electronic equipment, sensors and control systems.
Data can be sent and received.
NRG .. / URS .. / URB ... / SRL ... / NRS.. / etc.
Equipment and type designations of GESTRA AG.
SELV
Safety Extra Low Voltage
SIL (safety integrity level)
Safety integrity levels SIL 1 to 4 are used to quantify risk reduction. SIL 4 is the highest level of risk reduction. International standard IEC 61508 forms the basis for establishing, testing and operating technical
safety systems.
Continuous blowdown
As the boiler water begins to evaporate, the concentration of non-volatile dissolved solids (TDS) left
behind in the boiler increases over time as a function of steam consumption. If the TDS (= total dissolved
solids) concentration exceeds the limit defined by the boiler manufacturer, foaming and priming occur as
the density of the boiler water increases, resulting in the carry-over of solids with vapour into steam and
superheater lines.
The consequences are adverse effects on reliability and severe damage to steam generating units and
pipes.
To keep the TDS concentration within admissible limits, a certain portion of boiler water must be removed
continuously and/or periodically (by means of a continuous blowdown valve) and the boiler must be
replenished with fresh feedwater to compensate for the water lost through blowdown.
Intermittent blowdown
During the evaporation process, fine sludge is deposited on heating surfaces and on the floor of the steam
generating unit. The accumulated sludge sediments form a thermally insulating layer and can damage the
boiler walls due to excessive heat.
Intermittent blowdown is achieved by the abrupt opening of the intermittent blowdown valve. The resulting suction effect occurs only at the moment the valve is first opened. The opening time should therefore
not exceed about 2 seconds. Longer opening times result in a loss of water.
Time-based pulse/interval actuation of the intermittent blowdown valve optimises the removal of sludge
from the boiler. The interval between the intermittent blowdown pulses can be set between 1 and 120
hours (intermittent blowdown interval). The duration of intermittent blowdown can be set between 1 and
60 seconds.
For large boilers, repeated intermittent blowdown pulses may be required. Repetition can be set between 1
and 5 (intermittent blowdown pulses) with an interval from 5 – 30 seconds (pulse interval).
8 URB 60 - Installation & Operating Manual - 819699-00
URB 60 specialist terms and abbreviations
Damping (filter constant, conductivity and level control)
This parameter is used to settle the oscillations of the input signal.
Standby mode (conductivity control)
To prevent loss of water, continuous blowdown control and automated intermittent blowdown
(if enabled) can be disabled in standby mode or when the burner is switched off.
The continuous blowdown valve moves to CLOSED position, triggered by an external control command. In
standby mode, the “MIN/MAX” limits and monitoring functions remain active. When the equipment is back
in normal mode, the continuous blowdown valve returns to the control position.
An intermittent blowdown pulse is also triggered (if automated intermittent blowdown is enabled and a
blowdown interval and blowdown time have been set).
Cell constant (conductivity control)
The cell constant is a geometric variable of the conductivity electrode and is taken into account when
calculating the conductivity. However, this constant may change during operation, e.g. due to dirt deposits
on the measuring electrode.
If a reference measurement yields a result that differs from the indicated conductivity value, first check
the temperature compensation.
Modify the cell constant only if the temperature coefficient setting is no longer adequate for correct compensation. In this case, change the cell constant until the reading and the indicated conductivity match.
Flushing the continuous blowdown valve (conductivity control)
The continuous blowdown valve can be flushed automatically to prevent it from sticking. In this case, the
continuous blowdown valve is actuated at the flushing interval and opened for a defined flushing time.
After the flushing time, the valve moves to the position set by the control.
RefReading (reference reading)
The reference reading is the conductivity of the boiler water directly measured by the boiler service
technician. Using this parameter, the measured conductivity can be entered and the correction factor
automatically calculated (within its limits). This is then copied to the conductivity electrode and stored, so
that conductivity is then adjusted to the correct level.
Abbreviations for safety electrodes:
SLLL = safety low-level limiter
STL = safety temperature limiter
SHLL = safety high-level limiter
SCL = safety conductivity limiter
9URB 60 - Installation & Operating Manual - 819699-00
URB 60 specialist terms and abbreviations
Control direction
The control direction indicates whether control is for supplying (positive) or draining (negative).
Pb (proportional band)
The proportional band enables the controller amplification to be adapted to suit the controlled system. For
further information, see page 46/55, guide to setting control parameters.
Ti (reset time)
The integral element ensures that control deviations can be fully corrected, with no remaining deviation.
For further information, see page 46/55, guide to setting control parameters.
Neutral zone
If the actual value reaches the (setpoint +/- of the neutral zone), the control point does not
change in this range.
Forced switchover
This parameter defines the level at which an automatic change of pump must take place. The assumption
here is that since the level cannot be maintained, the pump is faulty.
10 URB 60 - Installation & Operating Manual - 819699-00
Usage for the intended purpose
The URB 60 visual display and operating unit can be used in conjunction with various GESTRA CAN bus
units from the SPECTOR
The URB 60 is designed for installation in a control cabinet door or switch panel. It may only be used
when correctly installed.
Please read the supplied Installation Manual.
IT security and rules for the use of Ethernet devices
The plant operator is responsible for the security of his/her IT network and must take appropriate action to
protect equipment, systems and components from unauthorised access.
Pay attention to the following instructions when using Ethernet devices in your system:
Do not connect equipment, systems or components to an open network, such as the internet, without
safeguards in place.
To fully protect a PLC runtime system on a control system that is available on the internet, the use of
common security mechanisms (firewall, VPN access) is absolutely essential.
Restrict access to all components to authorised persons.
Change default factory passwords before bringing into service for the first time!
Deploy defence in depth mechanisms in your system security, to restrict access and control to
individual products and networks.
Applicable directives and standards
The URB 60 has been tested and approved for use in the scope governed by the following directives and
standards:
connect
series.
Directives:
Directive 2014/30/EU EMC Directive
Directive 2011/65/EU RoHS II Directive
Standards:
61000-6-2 Immunity for industrial environments
61000-6-3 Emission standard for residential, commercial and
light-industrial environments
61000-6-4 Emission standard for industrial environments
To ensure the proper use of equipment during all types of use, you must also read the Installa-
tion & Operating Manuals for the system components used.
You can find the latest Installation & Operating Manuals on our website:
http://www.gestra.com/documents/brochures.html
11URB 60 - Installation & Operating Manual - 819699-00
Improper use
There is a danger of death due to explosion if the equipment is used in potentially explo-
sive atmospheres.
Do not use the equipment in potentially explosive atmospheres.
Do not bring any equipment into service that does not have its own specific name plate.
The name plate indicates the technical features of the equipment.
Basic safety notes
There is a risk of electric shock during work on electrical systems.
Always switch off the voltage to the equipment before performing work on the equipment or
system.
Check that the system is not carrying live voltage before commencing work.
Faulty equipment is a risk to system safety.
Only replace faulty equipment with identical equipment from GESTRA AG.
12 URB 60 - Installation & Operating Manual - 819699-00
Required personnel qualifications
Activity Personnel
Integration in control system Specialist staff Plant designer
Electrician/installer
Installation/electrical connection/bringing into service
Specialist staff
The equipment may only be installed, wired
and brought into service by qualified and
competent staff.
Operation Boiler service technician
Maintenance work Specialist staff
Setup work Specialist staff Plant construction
Staff trained by the
plant operator
Electrician
Maintenance and setup work may only be
performed by authorised staff who have
undergone specific training.
Fig. 1
Notes on product liability
We the manufacturer cannot accept any liability for damages resulting from improper use of the equipment.
13URB 60 - Installation & Operating Manual - 819699-00
Function
The URB 60 visual display and operating unit collects the data telegrams in the CAN bus from
GESTRA sensors and control units using the CANopen protocol.
When the system is started, the connected devices are automatically recognised by the URB 60 and
entered in a list of equipment along with all parameters. The groups, their home screens and navigation
buttons are displayed dynamically.
Readings, parameters, settings and messages are shown in plain text. When used as the second water
level indicator in boiler systems (TRD 401, EN 12952/ ...53), the level is also presented as a bar chart.
You can select various languages for the plain text display, see page 27 and 40.
Entering parameters with multilevel password security
Multilevel password security prevents parameters and settings from being changed by unauthorised
persons.
Password level (PWL)
PWL 1 = protected parameter settings
PWL 2 = safety-relevant values can only be set at this level
Operation and configuration, see page 23
The URB 60 is operated and configured on the unit itself using the colour touchscreen or via Ethernet
using remote software.
Limitations
In the event of signal multiplication, as can occur with a level control system (NRR 2-60 and NRR
2-61), only one level controller can be presented as a bar chart on the home screen.
This is indicated by different graphics in the chart and controller/limiter icons at the bottom of the
screen.
If the system has more than one STL (safety temperature limiter), the one with the lowest ID is shown
on the home screen.
On the limiter screens, all connected temperature sensors are shown with their actual value and limit
value.
Switchover between µS and ppm must take place both on the URB 60 and the LRG 1x-6x, so that the
displays match.
14 URB 60 - Installation & Operating Manual - 819699-00
Technical data
Supply voltage
24 V DC ( ) (19.2 V - 30 V)
Power consumption
Max. 9.5 W
Current input
Max. 0.4 A (at 24 V)
Required external fuse
2 A (to UL)
IP rating
Front: IP 65 (enclosure type 4X);
retaining clips and threaded pins required for installation = 6
Back: IP 20
Data transmission interfaces
1 x Ethernet 10/100 Mbit (Modbus TCP/IP)
1 x USB host (version 2.0), not galvanically isolated
1 x interface for CAN bus to ISO 11898, CANopen, not galvanically isolated
Indicators and controls
Capacitive 5.7” multi-colour touchscreen with LED backlight
Resolution: 640 x 480 pixels (WVGA)
Brightness: 250 Cd/m
Size (field of view): 110 mm x 65 mm
2
Admissible ambient conditions
Service temperature: 0 °C – 50 °C
Storage temperature: - 20 °C – 60 °C
Transport temperature: - 20 °C – 60 °C
Air humidity: 10 % – 95 % relative humidity, non-condensing
15URB 60 - Installation & Operating Manual - 819699-00
Technical data
Housing
Material: PC GF
Front pane: Glass with polyester film
Dimensions, see page 18
Front panel: (W x H) 170 x 130 mm
Front panel: 5 mm thick
Mounting depth: 34 mm
Switch panel cutout: (W x H) 157 mm x 117 mm (± 1 mm)
Weight
Approx. 0.6 kg
Real-time clock (battery buffered)
Type: CR 2032 (Li - lithium)
Buffer time without
supply voltage: Typically 10 years
The battery is permanently installed and cannot be replaced
Factory settings
The URB 60 visual display and operating unit is delivered ex works with the following settings:
Baud rate: 50 kBit/s (250 kBit/s as an option)
Node ID: 110
On system start: Setup Wizard runs
PWL 1: 111
PWL 2: 222
Conductivity in: µS/cm
Target IP: 192.168.x.x
Modbus TCP *: Off
* Also see page 63
16 URB 60 - Installation & Operating Manual - 819699-00
Name plate/identification
Manufacturer
information
Equipment designation
Mains voltage/power consumption/IP rating/
admissible ambient temperature
Supplier
Active ports/sockets
Safety note
Order no.
CE marking
Disposal information
Approvals
3-pole
connector for
supply voltage
Fig. 2
Permitted orientation
(upper edge = top)
17URB 60 - Installation & Operating Manual - 819699-00
Dimensions of the URB 60
130 mm
115.6 mm
155.6 mm
170 mm
34 mm
39 mm
Fig. 3
Installation instructions
The URB 60 visual display and operating unit is designed for installation in control cabinet doors or switch
panels.
Please read the supplied Installation Manual. There you will find the installation instructions
from the manufacturer, plus further diagrams and mounting dimensions.
Criteria for the installation position:
Do not expose the URB 60 to direct sunlight.
Plastic parts of the unit may become brittle under exposure to UV light, shortening its service life.
Without external ventilation, the unit may have a maximum inclination of 45 °C from the vertical when
installed.
The controls on the service panel of the unit and the ports and cable connections must be freely
accessible after installation.
The installation aperture may have a panel thickness of 2 to max. 5 mm.
Ensure adequate ventilation (cooling).
Provide minimum space of 3 cm around ventilation grilles on the unit.
Provide minimum space of 15 cm around components that emit heat (e.g transformers).
18 URB 60 - Installation & Operating Manual - 819699-00
Ports and sockets on the URB 60
CH
Ports and sockets are on the back of the unit.
D
A C B
A 1 x 3-pole connector for 24 V DC supply voltage (SELV)
B 1 x CAN bus connector (9-pin, D-Sub, male, UNC)
C 1 x Ethernet connections 10/100 Mbit (Modbus TCP/IP), socket RJ45
D 1 x USB host, supports USB 2.0, maximum cable length 5 m
CAN bus pin assignment,
see page 20
Fig. 4
CL
2
24 V DC supply voltage,
see page 20
7
+ 24 V - 0 V
19URB 60 - Installation & Operating Manual - 819699-00
Connecting the supply voltage
+ 24 V
Use a SELV power supply unit for connecting the supply voltage. For connection to the sup-
plied 3-pole connector, use a cable with a max. cross-section of 2.5 mm
2
.
24 V DC socket on the unit
- 0 V
3-pole connector, supplied
(Phoenix Contact MSTB 2.5 / 3-ST-5.08)
Cable cross-section (strand or wire):
min. 0.5 mm
max. 2.5 mm
2
2
+24 V DC
- 0 V
PE
Fig. 5
Connecting the CAN bus system
Bus line, cable length and cross-section
Use a shielded, multi-core, twisted-pair control cable, e.g. UNITRONIC® BUS CAN 2 x 2 x .. mm2 or
RE-2YCYV-fl 2 x 2 x .. mm2, as the bus line.
Pre-wired control cables (with plug and coupling) are available as accessories in various lengths.
The baud rate (transfer rate) is determined by the cable length between the bus terminal devices, and
the wire cross-section is determined by the overall power input of the measuring sensors.
0.2 A at 24 V is required per sensor. With five sensors, there is therefore a voltage drop of approx. 8V
per 100 m when using cables of 0.5 mm². In this case, the system is operating at its limits.
With five or more sensors and a cable length of ≥ 100 m, the wire cross-section needs to be doubled
to 1.0 mm².
At larger distances of > 100 m, the 24 V DC supply can also be connected on site.
20 URB 60 - Installation & Operating Manual - 819699-00
Connecting the CAN bus system
V
SSSS
Example
URB URS, NRR, LRR,
URW
CL
2
7
CH
CH
CL
CH
S
120 Ω
CL
CH = CAN High
+ 24 V
3
- 0 V
24 V DC
+
3
-
CL
-
CH
+ 24 V
S
Option
120 Ω
C
H
C
L
CL = CAN Low
S = shield
Fig. 6
Important notes on connecting the CAN bus system
A dedicated 24 V DC SELV power supply unit that is isolated from connected loads must be used to
supply the SPECTOR
Make sure wiring is in line, not in a star!
Avoid potential differences in system parts by connection to a central earthing point.
connect
system.
Connect the bus line shields to one another all the way along, and connect them to the central
earthing point (CEP).
If two or more system components are connected in a CAN bus network, a 120 Ω terminating resistor
must be connected to the first and last units between terminals CL / CH.
If you are using the URB 60 as the first or last device, connect the terminating resistor between pins 2
and 7 in the CAN bus connector.
Connect the supplied data cable to terminals 14 (CHigh) and 15 (CLow) of the last safety control unit
or controller in the control cabinet. The connector of the data cable leading to the URB 60 contains a
120 Ω terminating resistor, so that the terminating resistor on the safety control unit or controller is no
longer required.
Only one URS 60 and one URS 61 safety control unit may be used in the CAN bus network.
The CAN bus network must not be interrupted during operation!
If it is, an alarm is triggered.
NRG, LRG, TRV NRG, LRG,TRV
––
+++
CH CHCH CHCL CLCL CL
Shield
+ 24 V
-
0 V
CH
CL
S
5
+
24V DC
–
100 - 240 V AC
+ 24 V
-
0 V
CH
CL
S
–
+ 24 V
-
0 V
CH
CL
S
55
+
120 Ω
Terminating
resistor
–
+ 24
CH
CL
S
0 V
21URB 60 - Installation & Operating Manual - 819699-00
Connecting the CAN bus system
Pin assignment of the CAN bus connector and coupling for non pre-wired
control cables
If non pre-wired control cables are used, you must wire the CAN bus connector and couplings as shown in
the wiring diagram Fig. 7.
1 2 3 4 5 1 2 3 4 5
Connector Coupling
1 S Shield (screen)
2 + 24 V Power supply
3 - 0 V Power supply
4 CH CAN High data line
5 CL CAN Low data line
Fig. 7
22 URB 60 - Installation & Operating Manual - 819699-00
Operation and navigation
The URB 60 is operated on the unit itself using the colour touchscreen or via Ethernet using remote
software.
User interface (example)
The URB 60 visual display and operating unit shows parameters, operating states, etc. on a display.
The user interface of the URB is divided into three areas:
Alarm, system and group icons
Display area
Limiter and controller icons
The display window shows operating states and actual values.
The icons open the associated parameter screens. These icons change dynamically and are either
shown or hidden, depending on the current page and configuration.
Parameter entries can be disabled via the struck through padlock icon at the bottom right.
From PWL 1 onwards, this icon appears after a successful login.
Operation
All entries and actions, e.g. opening setup menus
and parameter screens, are initiated by tapping
the buttons and input fields.
The active screen has a grey background.
23URB 60 - Installation & Operating Manual - 819699-00
Operation and navigation
Colour coding of input and status fields
For example:
Background colour Description/function
Grey Designations
Yellow Input field/list box/On
Purple Input field/On/Off
White Display of readings, measurement signals and dimensions
Green Status information, status OK
Orange Status information, Min2/Max2 status
Red Status information, alarm or error status
Fig. 8
Automatic functions
If you do not input anything on the display for 10 minutes, the brightness is automatically
dimmed and you will be logged off.
When the display is dimmed, tap the screen once to reactivate it.
If you do not input anything on the display for one hour, the program automatically returns
to the home screen.
24 URB 60 - Installation & Operating Manual - 819699-00
Operation and navigation
Entering parameters using the virtual keypad
Tapping an input field opens a numeric virtual
keypad.
This keypad shows the old value (Old) and the
limits (Min/Max).
Your entries must remain within these
limits.
Function keys:
Delete last digit.
Confirm entry.
Reject entries and close
keypad.
Entering parameters with multilevel password security
Multilevel password security prevents parameters
and settings from being changed by unauthorised
persons. The password prompt appears automatically when you tap an input field.
If you do not input anything for 10
minutes, you will be logged off again.
Factory set password level:
PWL 1 = 111
PWL 2 = 222
Recommendation for initial setup
Log on using the factory setting, then safeguard
your system by setting your own password.
25URB 60 - Installation & Operating Manual - 819699-00
Operation and navigation
Scroll bar for long lists and menus
You can use the scroll bar to navigate up or down
long lists and menus in order to select
the desired parameters.
General recurring icons and functions
Icon Description
Alarm signal
Setup - carry out further system settings
Grey = no alarm
Yellow flashing = unacknowledged alarm
Yellow = active acknowledged alarm
Confirm, accept, Yes
Cancel, No
Back, quit settings
Delete signals, lists, configurations
Group icons arranged from top to bottom, groups 1..4.
26 URB 60 - Installation & Operating Manual - 819699-00
Starting up for the first time
When starting up for the first time, a Setup Wizard
opens. This guides you through the setting of the
most important parameters.
In addition, when the unit is switched on
the CAN bus searches for devices (nodes).
Navigation with the Setup Wizard
/ Go to previous/next page.
Confirm settings.
close the Setup Wizard.
Setup Wizard settings
On the last page, permanently
1. Language
Select the user language you require.
2. Conductivity
The unit can be configured in µS/cm or ppm.
This globally affects the display of the URB 60.
3. Time
Set the current time.
When the system is started, the connected devices (CAN bus nodes) are automatically detected and
entered in a list of equipment along with all parameters. The groups, their home screens and navigation
buttons are displayed dynamically.
If a CAN bus node is not on the list, check the node and set the correct parameters. After this, you must
import the device list again in the “Device settings” menu, see page 37.
During initial setup, always check the number of connected devices!
4. User assistance
An example is shown to assist you.
5. Baud rate
The SPECTOR
50 kBit/s.
connect
family is factory set to
27URB 60 - Installation & Operating Manual - 819699-00
Bringing the boiler, feedwater/condensate tank into service (Group 1..3)
As level and conductivity controllers are factory-set on delivery, they all have the same settings and, if
they are not assigned to different groups, they will be in conflict. This would lead to malfunctions.
For this reason, please follow the procedure below:
1. Bring Group 1 + Group 2 + Group 3 into service one after another in that order,
so, first Group 1 only, e.g. with the limiters.
2. Correctly install 120-ohm terminating resistors in the bus at the beginning and end of Group 1.
3. Once Group 1 is functioning, set the units for the feedwater tank as Group 2, then connect the units of
the second group to Group 1.
You can set the groups to which the level and conductivity controllers belong via a 4-pole DIP
switch in each controller. Set the electrode groups using the rotary knob on the front of each
electrode.
4. Perform the same steps for the third group, the condensate tank.
28 URB 60 - Installation & Operating Manual - 819699-00
Home screen
The home screen provides an overview of the
status of available limiters and controllers. Bar
charts display current readings and change colour
depending on their status. This enables you to
rapidly assess the state of the system.
Limiter icons above the bar charts indicate the
status of the connected electrodes.
Opening the parameter screens:
Use the following buttons to open the parameter
screens:
Limiters,
see page 56
Level controllers,
see page 41
Conductivity controllers,
see page 48
Opening alarm and system screens:
Alarms and error messages,
see page 31
System settings,
see page 33
Opening groups:
Up to four groups may be available, depending
on the system. You can navigate between the
individual groups.
Group 1
e.g. controlling and configuring limiters
and controllers in pressurised steam
and hot-water plants.
Group 2
Example
If the level controller is a 3-compo-
nent (3C) controller, the level shown
on the home screen may differ from
the level displayed for the electrode,
as compensation is taking effect in
the controller.
Group 3
Group 4
Groups 2 - 4
Controlling and configuring controllers
and plant, e.g. feedwater and condensate plants, etc.
29URB 60 - Installation & Operating Manual - 819699-00
Home screen
Data log (trend logs)
If you tap a bar chart on the home screen, this
opens the associated trend log.
You can also view this via the parameter screens
of the connected controllers.
Opens the “Data log” on the parameter
screens.
Description of the display
The data log shows the trend of the actual value
and controller setting (Yw) with a resolution of 5
seconds over a 24-hour period.
The current values are shown at the bottom of the
screen. Tapping the data log opens a ruler and
displays the historic values at that time.
For conductivity and temperature, the data log
values are shown normalised to 0 -100 %.
The non-normalised values are shown
below the data log.
Navigation using the function keys:
Move the timeline by 60
minutes
Zoom in/zoom out visible
timeline
Show current recordings
Return to home screen
30 URB 60 - Installation & Operating Manual - 819699-00
Alarms and error messages
Status and colour of warning triangle:
Yellow, flashing
Active unacknowledged alarms are present.
Yellow, on continuously
Active acknowledged alarms are present.
Grey
No alarms are active.
Opening the alarm and error list
Opens the list of active alarms.
Description of the alarm and error list
Alarms (Max/Min limit values, limiter triggered)
and error messages (offline, hardware errors)
are entered in the columns (Pending (= Come),
Expired (= Gone)) with a timestamp.
The most recent alarm is always shown at the top
of the list. To select an alarm message, select the
line in question.
Description of display:
Come (= Pending)
Time at which the event occurred.
Gone (= Expired)
Time at which the event disappeared
but was not acknowledged.
Description and abbreviations:
G1...4 Groups 1 to 4
L1..2 Limiter 1 or 2
C1..4 Limiter channel
NRG / LRG /
NRR / LRR ...
NRR 2 = Level controller NRR 2-61
E001...E027
MAX alarm,
offline, etc.
Example: G1 – LRR Max Alarm
Type of equipment
Fault codes based on specific
device or system *
Error/malfunction/status
Options:
Opens the alarm history,
see page 32.
Alarm Info, opens a list of the
descriptions and abbreviations
used:
This button is displayed
dynamically if a limiter (L1.. / L2..)
alarm message is selected, and
pressing the button causes the
screen to jump to the limiter page.
Acknowledges alarms. Expired
“alarms” are deleted from the
list.
* For a description of fault codes for
controllers and limiters, see page 59.
For electrodes in the respective
Installation & Operating Manual.
31URB 60 - Installation & Operating Manual - 819699-00
Alarms and error messages
Opening the Alarm History - the complete list of all alarms
All alarms are stored in an Alarm History. There is
memory capacity for 512 alarms.
Alarms are stored in cycles and restored after a
power failure.
Open the Alarm History.
Description of options:
Delete the entire list.
Close the Alarm History.
Opening the alarm and error list automatically
In the “System/Device settings” menu, you can determine whether the alarm and error list
should open manually or automatically after an error, see page 37.
32 URB 60 - Installation & Operating Manual - 819699-00
System settings
Tapping the icon opens the menu con-
taining the list of all CAN bus nodes.
Opening further menus:
View CAN bus nodes
Setting the date/time
Set the date and time and switch
between summer and winter time.
Password
Network settings
Device settings
System information
Select language
33URB 60 - Installation & Operating Manual - 819699-00
Viewing CAN bus nodes
View CAN bus
nodes.
After the system is started, all CAN bus nodes
of the system are entered here. To achieve this,
the communication between CAN bus nodes is
constantly monitored after the system has been
started for the first time.
The CAN bus is re-analysed after a restart. New
nodes are found and entered.
The parameters of all CAN bus nodes
are only collected and continuously
updated following complete analysis.
You can see this from the progress
number (127/127) at the top right of
the display.
Description of the list:
No.
Consecutive number.
Node ID
The node ID of the CAN bus node.
ID
The ID (channel) of the limiter electrode. No
other CAN bus nodes have an ID.
Type
Designation of control unit/electrode (e.g. NRG
1x-60).
Version
Unit version number.
Group
The group containing the CAN bus node.
Reimporting the device list
If a CAN bus node is not on the list, check the
node.
You can then reimport the device list by tapping
the “Type” input field or via the “Device settings”
menu, see page 37.
This deletes all devices from the list and then lists
them afresh.
34 URB 60 - Installation & Operating Manual - 819699-00
Setting the date/time
Open the “Date/Time” menu and make
the desired settings.
Description of display/settings:
Time/Date
Tap the appropriate field and set the date and
time.
Confirm these changes to apply them.
Daylight saving time (summer/winter time)
Tap the button to open the setting menu. Then
enter the parameters for your time zone.
Password
Open the “Password” menu.
Changing your password:
1. PWL1 Tap the input field.
2. First enter your current password, then
confirm it.
3. PWL1 Tap the input field again.
4. Next, enter and confirm the new password.
New
35URB 60 - Installation & Operating Manual - 819699-00
Network settings
Open the “Network settings” menu.
Description of display:
Target
The IP address of the URB 60.
Subnet mask
The current subnet mask.
Gateway
The IP address of the gateway.
Modbus TCP
Enable/disable the protocol.
Port
Standard = 502
Remote maintenance/software
The URB 60 can be operated remotely from a PC
using VNC remote software, e.g. UltraVNC Viewer.
This allows a 1:1 display of the URB 60 on the
computer.
To access the URB 60, use the previously set
network parameters.
36 URB 60 - Installation & Operating Manual - 819699-00
Device settings
Open the “Device settings” menu.
Description of display/settings:
Conductivity
Conductivity can be switched globally from
μs/cm to ppm for all conductivity controllers.
Device list - (Reimport)
If CAN bus nodes are not detected, you can
manually reimport the device list again.
You must also reimport the device
list if “Groups or IDs” of controllers or
electrodes are changed.
Baud rate
You can set the baud rate between 50 kBit/s
and 250 kBit/s.
This causes the device to reboot.
Alarm list
Switch between manual and automatic
opening of the alarm list in the event of an
alarm or error.
Home (screen) Temp 100 %
The range of the temperature limiter first detected by the URS 60/URS 61 safety control
unit is set for display on the home screen.
Display (Calibrate)
The display can be recalibrated, see the
following page. A system program is required
for this.
37URB 60 - Installation & Operating Manual - 819699-00
Device settings
Calibrating the display:
1. Tap “ Calibrate” next to Display.
2. You will then be prompted to tap the “Calibra-
tion” button in the “Touch Properties” menu
(see “Calibrating the display 1”).
3. A blank window with a target in the centre
then opens (see “Calibrating the display 2”).
4. Press the target for approx. 3 seconds using a
long, blunt object (stylus).
5. The target then automatically marks the four
corner coordinates.
6. To calibrate them, press and hold the target
(cross cursor) on each corner and hold for
approx. 3 seconds.
7. Apply this calibration within 30 seconds by
tapping the display.
8. Finally, you will see the message “Recalibra-
tion was successful”.
9. OK Tap “OK” to confirm, and then
again to quit the
“Touch Properties” menu.
Calibrating the display 1
Calibrating the display 2
38 URB 60 - Installation & Operating Manual - 819699-00
System information
Open the “System Information” menu
and select the desired action.
Description of display:
Startup
View a list of the last ten device restarts (e.g.
due to power failure), with the date and time.
Login
View a list of the last ten device logins with
date, time and password status.
PWL0 = failed login
PWL1/2 = successful login
Datalogs/Alarms
Save the data logs and alarm list to a USB
stick.
The file timestamps are in the Unix time
stamp format and can be counted back using
Excel formulae:
=DATE(1970;1;1)+(LINKS([CELL];10)/86400).
Error memory
Export the internal error log of selected CAN
bus nodes to a USB stick. To do this, you can
switch the desired devices in the lists on/off
and select them.
PLC
Status display of the URB software.
Run = OK
Stop = error
“PLC Reset” followed by “PLC Start” completely deletes all internal parameters.
In the event of an error, please contact
GESTRA Service.
The data export („Reading“) takes
approx. 6 minutes per device.
Firmware Vx.x
Updates provided by GESTRA can be copied
onto the device using a USB stick.
1. To do so, insert the USB stick in the device
and reboot the device.
This makes sure the USB stick is detected.
2. Now perform the update.
39URB 60 - Installation & Operating Manual - 819699-00
Selecting the language
Open the “Language” menu and select
the user language you require.
40 URB 60 - Installation & Operating Manual - 819699-00
Configuring the level controller
Open the parameter screen.
Example: NRR 2-61 level controller
Description of parameters:
Controller
Displays the connected level controller and
its status:
OK
The level controller is functioning without
problem.
Offline
No communication with the URB 60.
Collective fault
A fault has occurred in the level controller.
Alarm
Value above or below limit.
Electrode
Displays the level electrode in question, and
its status. For status messages, see controller.
Xw = control deviation
Control deviation = actual value X - setpoint W
Max1 *
Set the Max. limit for the boiler level in percent.
Setpoint
Set the desired setpoint.
Min1 *
Set the Min. limit for the boiler level in percent.
If the “Max1/Min1” limits are reached, the
parameter row changes colour.
* You can test the relays of the
connected level controller if necessary,
see following page.
Description of pump icons (P1/P2)
The pump icons are displayed dynamically based
on the set number of pumps (1 or 2).
Green = pump on
White = pump off
Only one pump at a time can be in operation.
Description of bar charts:
X = actual value (compensated)
X1 = actual value (uncompensated),
see page 47, 3C controller
(not shown here)
W = setpoint
Yw = control point
41URB 60 - Installation & Operating Manual - 819699-00
Configuring the level controller
Testing the relays of the connected level controller
1. Tap the “Max1” or “Min1” input field. The
required test window now opens.
2.
3. The relay in the level controller remains active
Pump control
When you select “Pumps”, the following menu
opens.
Description of parameters:
Initiate the relay test by pressing
and holding the button until
the controller status and
parameter field change
colour.
while you are pressing the button.
Function
Switch between pump and valve control.
Operation (Auto/Manual)
In manual mode, the drive can be operated
manually.
Pump 1/2 (On/Off)
Enable a connected pump so it is ready for
operation.
ON threshold
Set the value at which the pump turns on.
OFF threshold
Set the value at which the pump turns off.
Forced switchover
Set the value at which forced switchover of
the pump takes place, see page 10.
Description of bar charts
The “Yw” bar chart shows the control point of
the controller output (4 - 20 mA) normalised
to 100 %.
42 URB 60 - Installation & Operating Manual - 819699-00
Configuring the level controller
Setting manual control or the control point for manual pump operation
Tap “Hand” (Manual) to enable manual control.
Then, in the list box, set the control point for manual operation and switch the pump on or off.
Switching actuator operation between automatic and manual
or Open the
menu.
One of the icons is displayed, depending on which
function is enabled.
Description of parameters:
Operation (Auto/Manual)
In manual mode, the drive can be operated
manually.
Hand (= Manual)
Set the drive or valve as desired.
The system automatically switches
back to automatic mode when you
close this window.
43URB 60 - Installation & Operating Manual - 819699-00
Configuring the level controller
Valve calibration in manual mode when a feedback potentiometer is connected to the NRR 2-60
Open the menu.
Description of parameters:
Operation (Auto/Manual)
In manual mode, you can adjust the continuous blowdown valve using the manual value.
Active parameters when a feedback potentiometer is connected to the NRR 2-60 level
controller:
Raw data
Displays the current digital valve position.
Cal. 100 %/Cal. 0 %
Calibrated valve positions.
The calibrated raw data are shown in
the blank windows under Cal. 100 %/Cal 0 %.
The system automatically switches
back to automatic mode when you
close this window.
Display in manual mode when a feedback
potentiometer is connected to the NRR 2-60
level controller (example).
If no feedback potentiometer is
connected to the level controller, the
parameters are not displayed.
Description of bar chart:
/ = green, the valve
opens or closes
X = actual value
W = setpoint
Yw = control point in % based on the
continuous blowdown valve stroke
44 URB 60 - Installation & Operating Manual - 819699-00
Configuring the level controller
Calibrating the boiler level
If a URW 60 is used for level measu-
rement, calibration is not available.
Open the “Electrode” menu.
Description of parameters:
Attenuation (Damping)
This parameter is used to settle the oscillations of the input signal.
Raw data
Displays the current digital boiler level.
Calibration point
The desired calibrated level can be set from
> 25 % to 100 %.
Cal. 100 % (calibration point)/Cal. 0 %
Calibrated boiler levels.
The calibrated raw data are shown in
the blank windows under Cal. 100 %/Cal 0 %.
Performing calibration:
The system must go to the 0 % range,
or this range must be calibrated.
Calibration may be performed in any
order.
1. Reduce the boiler level to 0 %.
2.
When this level is reached,
confirm it.
The raw data are applied and displayed.
3. Fill the boiler up to the defined calibration
point xxx %.
You can define the calibration point within the
limits > 25 % to 100 % using interpolation.
4.
Confirm the level.
45URB 60 - Installation & Operating Manual - 819699-00
Configuring the level controller
Setting the level controller
Open the control parameter
screen.
Description of parameters:
Control direction
Control is set in either supply or drain.
Pb/Ti/Neutral Zone/
Valve Runtime (optional)
See table.
Guide to setting control parameters
Parameter Control deviation Control valve
> higher Large offset Responds slowly
Proportional
band Pb
Pb
Reset time
Ti
Neutral
zone
Valve runtime
Fig. 9
< lower Small offset
Measuring range 100 % = 200 mm from sight glass
Setpoint SP = 80 % of measuring range = 160 mm
Example:
> higher Slow correction of deviations Responds quickly
< lower
> higher
< lower Correction of deviations starts rapidly
For NRR 2-60
only
Proportional band Pb = +/- 20 % of setpoint = +/- 32 mm
With the measuring range and setpoint mentioned above, the proportional band is
then +/- 16 % = +/- 32 mm or in the range 128 mm to 192 mm.
Fast correction of deviations, the control
loop may tend to overshoot
Correction of deviations starts with a
delay
Responds quickly and may open/close
continually
Responds slowly
In this range, the control point does
not change.
Responds only if the control
deviation is larger than the neutral
zone.
Establish the real valve runtime, e.g.
from Closed to Open (0 - 100 %).
46 URB 60 - Installation & Operating Manual - 819699-00
Configuring the level controller
Setting the level controller for 3-component control
The 3C controller icon appears only if
a controller of this type is used in the
system.
Open the 3C control
parameter screen.
Description of parameters:
Feedwater flowrate
Steam flowrate
For each type of flowrate, enter the measuring
range of the connected sensors
under the analogue signal inputs
(4 mA / 20 mA).
Quality factor (“Evaluation factor”)
This factor assesses how much the difference (steam flowrate - feedwater flowrate)
influences the measured level.
Description of bar charts:
X = actual value (compensated)
X1 = actual value (uncompensated)
Yw = control point
Controlled actual value = level - (steam flowrate - feedwater flowrate) x quality factor.
(Only if steam flowrate - feedwater flowrate > 0).
47URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Open the parameter screen.
Example
Description of parameters:
Controller
Displays the connected conductivity controller
and its status:
OK
The conductivity controller is functioning
without problem.
Offline
No communication with the URB 60.
Collective fault
A fault has occurred in the conductivity
controller.
Alarm
Value above or below limit.
Electrode
Displays the conductivity electrode in question, and its status. For status messages, see
controller.
Max
Set the Max switchpoint.
W
Set the setpoint.
Min
Set the Min switchpoint.
If the “Max/Min” switchpoints are reached,
the parameter row changes colour.
“Intermittent blowdown”
If the Min contact of the LRR 1-60 conductivity
controller was configured as
“Intermittent blowdown” (see page 52), the
display changes and the time until the next blowdown is shown.
Description of bar charts:
X = actual value
W = setpoint
Yw = control point in % based on the
continuous blowdown valve stroke
You can change the unit between
“µS/cm” and “ppm” if required, see
page 37, Device settings.
Display for configuring
48 URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Standby mode
At the standby input of the LRR 1-60
conductivity controller, an external signal (24 V DC) can switch the controller
to standby mode. This causes the control to switch off and the valve to close.
The switchpoints (Max/Min) and the
monitoring function remain active
in standby mode.
Testing the relays of the connected conductivity controller
1. Tap the “Max1” or “Min1” input field. The
required test window now opens.
2.
3. The relay in the conductivity controller
Initiate the relay test by pressing
and holding the button until
the controller status and
parameter field change
colour.
remains active while you are pressing the
button.
Display when the conductivity controller has
been switched to standby mode
Display and functions after quitting standby
mode
If you quit standby mode, the controller returns
to control mode and intermittent blowdown is
re-enabled once more.
49URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Continuous blowdown valve
Open the “Valve” menu.
Description of parameters:
Operation (Auto/Manual)
In manual mode, you can adjust the continuous blowdown valve using the manual value.
Active parameters when a feedback potentiometer is connected to the LRR1-60 conductivity controller:
Raw data
Displays the current digital valve position.
Cal. 100 %/Cal. 0 %
Calibrated valve positions.
The calibrated raw data are shown in
the blank windows under Cal. 100 %/Cal 0 %.
The system automatically switches
back to automatic mode when you
close this window.
Display in manual mode when a feedback
potentiometer is connected to the LRR 1-60
conductivity controller (example).
If no feedback potentiometer is
connected to the conductivity controller, the parameters are not displayed.
Description of bar chart:
/ = green, the valve
opens or closes
X = actual value
W = setpoint
Yw = control point in % based on the
continuous blowdown valve stroke
50 URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Continuous blowdown valve - Calibrating the feedback potentiometer for the valve position display
If a feedback potentiometer is connected to
the LRR 1-60 conductivity controller, it must be
calibrated.
Read the instructions for connecting a
feedback potentiometer in the Installation & Operating Manual of the
LRR 1-60 conductivity controller.
Performing calibration:
Calibration at 0 %
1. Tap the “Hand” (= Manual) button.
2. Enter 0 % in the “Manual” input field.
The continuous blowdown valve moves to the
set position.
3.
Calibration at 100 %
4. Enter 100% in the “Manual” input field.
5.
When the valve position
is reached, confirm it.
The continuous blowdown valve moves to the
set position.
When the valve position
is reached, confirm it.
51URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Setting the intermittent blowdown and automatic flush function
Open the menu.
Description of parameters:
24h purging (On/Off)
Switch automatic flushing on/off.
The continuous blowdown valve can be
flushed automatically to prevent it from
sticking.
MIN Rel. Fct. (MIN relay function)
You can set the following functions for the MIN
relay of the LRR 1-60 conductivity controller,
also see examples on the right:
Min alarm
Intermittent blowdown
Further parameters after “24h purging”
function has been switched on:
The continuous blowdown valve is switched on
regularly at set flushing intervals and opens for
the set flushing time.
Purging interval in hours (h)
After the flushing interval, the time until the
next flush is shown in the blank field.
Purging time (in seconds)
Example: MIN relay function as “Min alarm”
Example: MIN relay function as “Intermittent
blowdown”
Further parameters after “Intermittent blowdown” function has been switched on:
Intermittent blowdown interval (in hours)
Intermittent blowdown time (in seconds)
The intermittent blowdown valve is switched
on regularly at set intervals and opens for the
set intermittent blowdown time.
Intermittent blowdown pulses
Remaining runtime (in hours)
Until the next intermittent blowdown.
Hand (“Manual”)
Initiate intermittent blowdown manually.
Number of pulses.
Pulse interval (in seconds)
Set the time between the individual
intermittent blowdown pulses.
52 URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Setting a correction factor and temperature compensation for the current conductivity reading
Open the menu.
Example
Description of parameters:
Reading (“Value”)
The current measured conductivity.
Temperature
The current temperature at the tip of the
electrode.
Safety parameters
The “Safety parameters” menu appears when you
tap the input fields of the parameters below.
Setting and description of safety parameters
see page 54.
View of safety parameters after successful
transmission. You can now accept or reject the
reference value.
53URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Setting safety parameters
1. Tap one of the following parameters:
Reference reading, correction factor, temperature coefficient, damping, or 100% range.
2. The “Safety parameters” menu opens.
The current safety parameter values are
displayed.
3. Entry of safety parameters.
You can change the safety parameters within
the admissible limits.
After entry, the format of the value is converted. It is then sent to the electrode, which
sends it back as a “Reference value”.
The “input” fields below are hidden to
prevent the wrong one being filled.
4. If the reference value is the same as the input
value, it is shown with a green background.
Input = reference value
Confirm the input value.
If there is a problem with transmission, a red
background is shown.
Input ≠ reference value
Reject the entered value
and enter a new one.
If you do not enter anything for 20
seconds, the window closes automatically.
Description of safety parameters:
ReferenceReading (“Ref. meas. value”)
The reference reading is the conductivity
of the boiler water directly measured by the
boiler service technician.
Enter the measured reference reading here.
The correction factor is calculated automatically (within its limits of 0.05 to 5.00 1/cm),
transmitted to the electrode and then copied
back to the “Reference value” field.
If the calculated correction factor is outside its
limits, the entered value is rejected.
Correction factor
During operation, the indicated conductivity
may differ from the reference reading gained
from a reference measurement, e.g. due to
soiling.
In this case, change the correction factor
until the displayed “Reading” matches the
reference reading from the reference measurement.
TemperatureCoeff. (temperature coefficient) when service temperature has been
reached.
Proceed as described above for the correction
factor.
Damping (“Attenuation”)
This parameter is used to settle the oscillations of the input signal.
100 % range
Enter the maximum expected conductivity.
54 URB 60 - Installation & Operating Manual - 819699-00
Configuring the conductivity controller
Setting the control parameters
Open the control parameter
screen.
Guide to setting control parameters
Parameter Control deviation Continuous blowdown valve
> higher Large offset Responds slowly
Proportional
band Pb
Pb
Reset time
Ti
Neutral
zone
Valve runtime
Fig. 10
< lower Small offset
Measuring range 0 - 6000 µS/cm
Setpoint SP = 3000 µS/cm
Example:
> higher Slow correction of deviations Responds quickly
< lower
> higher
< lower Correction of deviations starts rapidly
Proportional band Pb = +/- 20 % of setpoint = +/- 600 µS/cm
With the measuring range and setpoint mentioned above, the proportional band is
then +/- 600 µS/cm or in the range 2400 µS/cm to 3600 µS/cm.
Fast correction of deviations, the control
loop may tend to overshoot
Correction of deviations starts with a
delay
Responds quickly and may open/close
continually
Responds slowly
In this range, the control point does
not change.
Responds only if the control
deviation is larger than the neutral
zone.
Establish the real valve runtime, e.g.
from Closed to Open (0 - 100 %).
55URB 60 - Installation & Operating Manual - 819699-00
Opening the limiter overview
Open the limiter overview,
see example.
Two limiters are shown as a maxi-
mum.
For each limiter, an icon appears at the bottom
of the screen:
Limiter 1
Limiter 2
Description of display:
Limiter 1 or 2
Displays the available safety
control unit (e.g. URS 60).
1st to 4th electrodes and sensors
Displays the available limiter electrodes
(e.g. NRG 16-60) and sensors.
If an electrode with an actual value/
limit value that can be displayed is
connected, these parameters appear
in the lower part of the window.
For example:
2. SCL (2nd electrode) *
4. STL (4th sensor) *
* Abbreviations for safety electrodes:
SLLL = safety low-level limiter
STL = safety temperature limiter
SHLL = safety high-level limiter
SCL = safety conductivity limiter
Setup (for SIL2 LRG 1x-6x electrodes only)
- Setting safety parameters
For a conductivity electrode, a setup button is
also shown. You can use this to set the safety
parameters, see page 57.
56 URB 60 - Installation & Operating Manual - 819699-00
Opening the limiter overview
Setting safety parameters
1. Perform a reference measurement to deter-
mine the current conductivity of the boiler
water.
2. Setup: Tap the Setup button.
3. The “Safety parameters” menu opens.
The current safety parameter values are
displayed.
4. Entry of safety parameters.
You can change the safety parameters within
the admissible limits.
After entry, the format of the value is converted. It is then sent to the electrode, which
copies it back as a “Reference value”.
5. If the reference value is the same as the input
value, it is shown with a green background.
Input = reference value
Confirm the input value.
If there is a problem with transmission, a red
background is shown.
Input ≠ reference value
Reject the entered value
and enter a new one.
If you do not enter anything for 20
seconds, the window closes automatically.
Description of safety parameters:
ReferenceReading (“Ref. meas. value”)
The reference reading is the conductivity
of the boiler water directly measured by the
boiler service technician.
Enter the measured reference reading here.
The correction factor is calculated automatically (within its limits of 0.05 to 5.00 1/cm),
transmitted to the electrode and then copied
back to the “Reference value” field.
If the calculated correction factor is outside its
limits, the entered value is rejected.
Correction factor
During operation, the indicated conductivity
may differ from the reference reading gained
from the reference measurement, e.g. due to
soiling.
In this case, change the correction factor
until the displayed “Reading” matches the
reference reading from the reference measurement.
TemperatureCoeff. (temperature coefficient) when service temperature has been
reached.
Proceed as described above for the correction
factor.
Max
Limit value for maximum admissible conductivity.
You can also set the limit value on the
conductivity electrode.
57URB 60 - Installation & Operating Manual - 819699-00
Opening the limiter overview
Testing the limiter
You can test the limiter for the stored limiter
electrodes.
1. Tap the input field of the required electrode
(the fields contain a “!”). The required test
window now opens.
2.
3. While you are pressing the button, the safety
Initiate the relay test by pressing
and holding the button until
the limiter status and
electrode status change
colour.
circuit is interrupted when the delay time
elapses.
The limiter behaves as if there were a genuine
alarm.
Read the Manual of the limiter in ques-
tion.
58 URB 60 - Installation & Operating Manual - 819699-00
System malfunctions
Display of system malfunctions in the alarm and error list using fault codes
Fault codes for the URS 60/URS 61 safety control unit
Fault code
E.006 ProbeCntErr
E.007 DipConfErr
E.008 Ch1Ch2DiffErr
E.009 Relais1Err Error in relay 1
E.010 Relais2Err Error in relay 2
E.012 DoubleStandByErr Two electrodes are bridged
E.013 Probe1Err
E.014 Probe2Err
E.015 Probe3Err
E.016 Probe4Err
E.019 V6Err
E.020 V5Err
E.021 V3Err
E.022 V1Err
E.023 V12Err
E.024 CANErr
E.025
E.026 BIST (SelftestErr)
Internal
designation
µC1Err)
ESMG1 (
Possible faults Remedy
No channel
configured
Inconsistent code switch
setting
EMC or
internal error
Collective fault in channel
1
Collective fault in channel
2
Collective fault in channel
3
Collective fault in channel
4
EMC or
voltage error
EMC or
voltage error
EMC or
voltage error
EMC or
voltage error
EMC or
voltage error
Wrong baud rate or
wiring error
EMC error or
internal process error
EMC or
internal error
Check code switch
Check code switch
Check installation location
Replace safety control unit
Check installation location
Replace safety control unit
Check installation location
Replace safety control unit
Check both monitoring units
(SRL 6-60)
Check channel 1
Check channel 2
Check channel 3
Check channel 4
Check installation location
Replace safety control unit
Check installation location
Replace safety control unit
Check installation location
Replace safety control unit
Check installation location
Replace safety control unit
Check installation location
Replace safety control unit
Check the baud rate, wiring and terminating
resistors
Check installation location
Replace safety control unit
Check installation location
Replace safety control unit
All fault codes from E.001 to E.005 and E.018 not listed here are available as reserves
59URB 60 - Installation & Operating Manual - 819699-00
System malfunctions
Fault codes for the NRR 2-60 / NRR 2-61 level controller,
LRR 1-60 conductivity controller and URW 60 universal converter
Fault code
E.001 - -
E.002 - -
E.003
Internal
designation
- - -
Possible faults Remedy
-
-
E.004 PlausSwitchpointErr
E.005 InitTestErr Internal error Reboot the device and replace if necessary
E.006 WalkThroughAppErr Internal error Reboot the device and replace if necessary
E.007 WalkThroughTestErr Internal error Reboot the device and replace if necessary
E.008 PlausSteamErr
E.009 PlausWaterErr
E.010 PlausPotiErr
E.011 PlausErr
MIN switchpoint higher
than MAX switchpoint
Implausible measuring
range settings
Steam flowrate:
Min > Max
Implausible measuring
range settings
Feedwater flowrate:
Min > Max
Implausible calibration
points
Valve:
CLOSED (0 %) > OPEN
(100 %)
Implausible measuring
range settings
Min > Max
Reset the switchpoints
Check/reset steam flowrate
measuring range
Check/reset feedwater flowrate
measuring range
Check Valve CLOSED (0 %) and
Valve OPEN (100 %) calibration points
Check/reset measuring range
E.012 ProbeCommErr
E.013 OvertempErr
Breakdown in communication with electrode
Ambient temperature of
electrode > 75°C
Check baud rate, group number, wiring and
terminating resistors
Check electrode installation location
Reduce ambient temperature of electrode
terminal box
60 URB 60 - Installation & Operating Manual - 819699-00
System malfunctions
Fault codes for the NRR 2-60 / NRR 2-61 level controller,
LRR 1-60 conductivity controller and URW 60 universal converter
E.014 ProbeMalfunctionErr General electrode error Check electrode
E.015 SteamMinErr
E.016 SteamMaxErr
E.017 FeedwaterMinErr
E.018 FeedwaterMaxErr
E.019
E.020
E.021 MinErr Measuring current < 4 mA
E.022 MaxErr
E.023 - - -
E.024 CANErr
E.025 Pump1Err
E.026 Pump2Err
E.027 - - -
ProbeLFShortOpenErr
ProbePtShortOpenErr
Steam flowrate
measuring current < 4 mA
Steam flowrate
measuring current > 20
mA
Feedwater flowrate measuring current < 4 mA
Feedwater flowrate measuring current > 20 mA
Faulty conductivity
electrode (sensor break or
short circuit)
Faulty Pt1000 temperature
sensor (sensor break or
short circuit)
Measuring current > 20
mA
Wrong baud rate or wiring
error
Pump 1 output too low or
pump faulty
Pump 2 output too low or
pump faulty
Check steam flowrate current transmitter
and replace if necessary
Check electrical connection
Check steam flowrate current transmitter
and replace if necessary
Check electrical connection
Check feedwater flowrate current transmitter and
replace if necessary
Check electrical connection
Check feedwater flowrate current transmitter and
replace if necessary
Check electrical connection
Check conductivity electrode and replace
if necessary
Check electrical connection
Check Pt1000 temperature sensor and replace if
necessary
Check electrical connection
Check current transmitter and
replace if necessary
Check electrical connection
Check current transmitter and
replace if necessary
Check electrical connection
Check baud rate, group number, wiring and
terminating resistors
Check controller parameters and switching
thresholds of pumps
Check pump electrical connection
Replace pump if necessary
Check controller parameters and switching
thresholds of pumps
Check pump electrical connection
Replace pump if necessary
All fault codes from E.001 to E.027 not listed here are available as reserves
61URB 60 - Installation & Operating Manual - 819699-00
System malfunctions
Common faults during use
USB stick cannot read/write files
Remedy:
Reboot the URB 60 with the USB stick inserted and perform the desired action again.
The USB stick must have the file format FAT32.
The USB stick may not be suitable for this data transfer.
The home screen remains blank
Remedy:
The URB 60 is not correctly connected to the CAN interface.
Wrong baud rate, correct the baud rate.
Incorrect parameter display
Remedy:
Reboot the URB 60.
Parameters are difficult to manipulate on the display
Remedy:
Recalibrate the display, see page 38.
What to do in the event of system malfunctions
Checking installation and function
When you have remedied system malfunctions, perform a function test as follows.
Checking installation and function
Check the settings
In the event of malfunctions or faults that cannot be remedied with the aid of this Installation
& Operating Manual, please contact our service centre or authorised agent in your country.
62 URB 60 - Installation & Operating Manual - 819699-00
Data exchange via Modbus TCP
The URB 60 visual display and operating unit has a Modbus TCP server. This enables all values to be forwarded
to a higher-level control system or control centre.
Parameter:
Modbus ID: 1
Port: 502
Modicon Modbus: based on 1
You can find the latest list of datapoints on our website at:
http://www.gestra.com/documents/brochures.html
Taking out of service
1. Switch off the supply voltage and secure so that it cannot be turned on again.
2. Unplug the mains connector from the unit.
3. Remove all plug and socket connections (e.g. CAN bus line, Ethernet connection, etc.).
4. Unscrew the screws and remove the retaining clips.
5. Carefully push the unit out of the cutout in the door of the control cabinet.
An alarm is triggered when the CAN bus cable is interrupted.
Disposal
Dispose of the URB 60 visual display and operating unit in accordance with statutory waste disposal
regulations.
63URB 60 - Installation & Operating Manual - 819699-00
Returning decontaminated equipment
If goods have come into contact with media that are hazardous to health, they must be
drained and decontaminated before being returned to GESTRA AG!
Such media include solid, liquid or gaseous substances, mixtures of these, or radiation.
GESTRA AG can accept returned products only if accompanied by a completed and signed
return note and also a completed and signed declaration of decontamination.
The return confirmation and declaration of decontamination must be attached to the returned
products and be accessible from the outside. Otherwise, the products cannot be dealt with and
will be returned at the customer’s expense.
Please proceed as follows:
1. Let GESTRA AG know about the return beforehand by e-mail or phone.
2. Wait until you have received the return confirmation from GESTRA.
3. Return the products to GESTRA AG together with the completed return confirmation (and
declaration of decontamination).
EU Declaration of Conformity
We hereby declare that the URB 60 visual display and operating unit conforms to the following European
Directives:
Directive 2014/30/EU EMC Directive
Directive 2011/65/EU RoHS Directive
Please see our Declaration of Conformity for details on the conformity of our equipment with European
Directives.
The current Declaration of Conformity can be found online at www.gestra.com or can be requested from
us.
64 URB 60 - Installation & Operating Manual - 819699-00
For your notes
65URB 60 - Installation & Operating Manual - 819699-00
66 URB 60 - Installation & Operating Manual - 819699-00
67URB 60 - Installation & Operating Manual - 819699-00
You can find our authorised agents around the world at:
www.gestra.com
GESTRA AG
Münchener Straße 77
28215 Bremen
Germany
Phone +49 421 3503-0
Fax +49 421 3503-393
e-mail info@de.gestra.com
Web www.gestra.com
819699-00/08-2019cm (808941-00) · GESTRA AG · Bremen · Printed in Germany
Loading...