This manual is intended for qualified personnel working in electrical engineering and electronics!
Always keep this manual within easy reach for future reference.
To make it easier for you to understand and revisit certain sections in this manual, we
have used symbols to identify important instructions and information. The meaning of
these symbols is explained below:
This signal word indicates that there is a high risk of danger that will result in electrocution or serious injury if not avoided.
This signal word indicates a medium risk of danger that can lead to
death or serious injury if not avoided.
This signal word indicates a low level risk that can result in minor or mo-derate injury or damage to property if not avoided.
This symbol denotes information intended to assist the user in making
optimum use of the product.
1.2Technical support
For commissioning and troubleshooting Bender offers you:
1.2.1 First level support
Technical support by phone or e-mail for all Bender products
• Questions concerning specific customer applications
*Available from 7.00 a.m. to 8.00 p.m. 365 days a year (CET/UTC+1)
**Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m.
1.3Training courses
Bender is happy to provide training regarding the use of test equipment.
The dates of training courses and workshops can be found on the Internet at
www.bender-de.com -> Know-how -> Seminars.
1.4Delivery conditions
Bender sale and delivery conditions apply.
For software products the "Softwareklausel zur Überlassung von Standard-Software als
Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen Lieferbedingungen für
Erzeugnisse und Leistungen der Elektroindustrie" (software clause in respect of the licensing of standard software as part of deliveries, modifications and changes to general delivery conditions for products and services in the electrical industry) set out by the ZVEI
(Zentralverband Elektrotechnik- und Elektronikindustrie e. V.) (German Electrical and
Electronic Manufacturer's Association) also applies.
Sale and delivery conditions can be obtained from Bender in printed or electronic format.
1.6Disposal
Abide by the national regulations and laws governing the disposal of this device. Ask
your supplier if you are not sure how to dispose of the old equipment.
The directive on waste electrical and electronic equipment (WEEE directive) and the directive on the restriction of certain hazardous substances in electrical and electronic
equipment (RoHS directive) apply in the European Community. In Germany, these policies are implemented through the "Electrical and Electronic Equipment Act" (ElektroG).
According to this, the following applies:
• Electrical and electronic equipment are not part of household waste.
• Batteries and accumulators are not part of household waste and must be disposed
of in accordance with the regulations.
• Old electrical and electronic equipment from users other than private households
which was introduced to the market after 13 August 2005 must be taken back by the
manufacturer and disposed of properly.
For more information on the disposal of Bender devices, refer to our homepage at
www.bender-de.com -> Service & support.
1.5Storage
The devices must only be stored in areas where they are protected from dust, damp, and
spray and dripping water, and in which the specified storage temperatures can be ensured.
7
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 8
2. Safety instructions
DANGER
WARNING
CAUTION
Safety instructions
2.1General safety instructions
Part of the device documentation in addition to this manual is the enclosed "Safety instructions for Bender products".
2.2Work activities on electrical installations
Only qualified personnel are permitted to carry out the work necessary
to install, commission and run a device or system.
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
• An electric shock
• Damage to the electrical installation
• Destruction of the device
Before installing and connecting the device, make sure that the installation has been de-energised. Observe the rules for working on elec-
trical installations.
If the device is used outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with. The European standard EN 50110 can be
used as a guide.
2.3Device-specific safety information
Make sure that the basic settings meet the requirements of the IT system.
Children and unauthorised persons must not have access to or contact
with the ISOMETER®.
Make sure that the operating voltage is correct!
Prior to insulation and voltage tests, the ISOMETER® must be disconnected
from the IT system for the duration of the test. In order to check the correct
connection of the device, a functional test has to be carried out before starting the system.
In the event of an alarm message of the ISOMETER®, the insulation fault
should be eliminated as quickly as possible.
If the ISOMETER® is installed inside a control cabinet, the insulation fault
message must be audible and/or visible to attract attention.
When using ISOMETER®s in IT systems, make sure that only one active
ISOMETER® is connected in each interconnected system. If IT systems are
interconnected via coupling switches, make sure that ISOMETER®s not
currently used are disconnected from the IT system and deactivated. IT
systems coupled via diodes or capacitances may also influence the insulation monitoring process so that a central control of the different
ISOMETER®s is required.
8
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 9
Prevent measurement errors!
When a monitored IT system contains galvanically coupled DC circuits, an
insulation fault can only be detected correctly if the rectifier valves (e.g.
rectifier diode, thyristors, IGBTs, frequency inverters, …) carry a minimum
current of > 10 mA.
Safety instructionsSafety instructions
2.4Intended use
Only qualified personnel are permitted to carry out the work necessary
to install, commission and run a device or system.
Unspecified frequency range
When connecting to an IT system with frequency components below the
specified frequency range, the response times and response values may
differ from the indicated technical data. However, depending on the application and the selected measurement method, continuous insulation
monitoring is also possible in this frequency range.
There is no influence on the insulation monitoring for IT systems with frequency components above the specified frequency range, e.g. within the
range of typical switching frequencies of frequency inverters (2…20 kHz).
The ISOMETER® monitors the insulation resistance of unearthed AC/DC main circuits (IT
systems) with mains voltages of AC 0…690 V or DC 0…1000 V.
DC components existing in AC/DC systems do not influence the operating characteristics.
Due to the separate supply voltage, de-energised systems can also be monitored. The
maximum permissible system leakage capacitance is 0…1000 µF, depending on the profile.
Intended use also implies:
• The observation of all information in the operating manual
• Compliance with test intervals
In order to meet the requirements of applicable standards, customised parameter settings must be made on the equipment in order to adapt it to local equipment and operating conditions. Please heed the limits of the area of application indicated in the
technical specifications.
Any other use than that described in this manual is regarded as improper.
9
iso685-D-B_D00177_05_M_XXEN/07.2017
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3. Function
*
Function
3.1Features
• ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and
for IT DC systems (IT = unearthed systems)
• Automatic adaptation to the existing system leakage capacitance
• Combination of and other profile-specific measurement methods
• Two separately adjustable response value ranges of 1 kΩ…10 MΩ for alarm 1 and
alarm 2
• High-resolution graphic LC display for excellent readability and recording of the
device status
• Connection monitoring (monitoring of the measuring lines)
• Automatic device self test
• Graphical representation of the insulation resistance over time (isoGraph)
• History memory with real-time clock (buffer for three days) for storing 1023 alarm
messages with date and time
• Current or voltage output 0(4)…20 mA, 0…400 µA, 0…10 V, 2…10 V (galvanically
separated), which is analogous to the measured insulation value of the system
• Freely programmable digital inputs and outputs
• Remote setting of certain parameters via the Internet
(Option; COMTRAXX® gateway)
• Worldwide remote diagnosis via the Internet (made available by Bender Service
only)
• RS-485/BS (Bender sensor bus) for communication with other Bender devices
• ISOnet: Internal separation of the ISOMETER® from the IT system to be monitored
(e.g. if several IT systems are interconnected)
• BCOM, Modbus TCP and web server
3.2.2 Special characteristics of ISOMETER® iso685-S-B with front panel
The ISOMETER® iso685-D-B and iso685W-D-B are devices of the iso685 device family with
integrated display. This manual applies in full to these ISOMETER®s.
The ISOMETER® iso685-S-B and iso685W-S-B are sensor variants of the iso685 device family without display. The only difference between these variants and the ISOMETER®s
iso685-D and iso685W-D-B is that they do not feature a display.
The ISOMETER®s iso685-S-B and iso685W-S-B must be used in combination with a front
panel because the devices are operated via the front panel. The operation of the front
panel is equal to the operation of the ISOMETER®s with integrated display, which is
described in this manual.
Only the sensor variant (ISOMETER® iso685-S-B or iso685W-S-B) can be
connected to the front panel. Connection to the display variant
(ISOMETER® iso685-D-B or iso685W-D-B) is not possible.
Hereafter, the ISOMETER®s with integrated display are described. This description is similar to the combination of ISOMETER® sensor variants and the front panel FP200. The devices to which this manual applies will be referred to as ISOMETER®s hereafter.
3.3Functional description
The insulation monitoring device continuously monitors the entire insulation resistance
of an IT system during operation and triggers an alarm when the value falls below a preset response value. To obtain a measurement the device has to be connected between
the IT system (unearthed system) and the protective earth conductor (PE). A measuring
current in the µA range is superimposed onto the system which is recorded and evaluated by a micro-controlled measuring circuit. The measuring time is dependent on the
selected measurement profiles, the system leakage capacitance, the insulation resistance
and possible system-related disturbances.
3.2Product description
3.2.1 General product description
The ISOMETER® is an insulation monitoring devices in accordance with IEC 61557-8 for IT
systems. The devices are universally applicable in AC, 3(N)AC, AC/DC and DC systems. AC
systems may include extensive DC-supplied loads (such as rectifiers, inverters, variablespeed drives).
10
The response values and other parameters are set using a commissioning wizard or via
different setup menus using the device buttons and a high-resolution graphical LC display. The selected settings are stored in a permanent fail-safe memory. Different
languages can be selected for the setup menus as well as the messages indicated on the
display. The device utilises a clock for storing fault messages and events in a history
memory with time and date stamp. The settings can be protected against unauthorised
modifications by entering a password. To ensure proper functioning of connection monitoring, the device requires the setting of the system type 3AC, AC or DC and the
red use of the appropriate terminals
L1/+, L2, L3/-.
iso685-D-B_D00177_05_M_XXEN/07.2017
requi-
Page 11
FunctionFunction
TEST
√ Measurement
Coupling
Earth connection
Outputs
33 %
The insulation monitoring device is able to measure the insulation resistance reliably and
precisely in all common IT systems (unearthed systems). Due to various applications, system types, operating conditions, application of variable-speed drives, high system leakage capacitances etc., the measurement technique must be able to meet varying
requirements in order to ensure an optimised response time and relative uncertainty.
Different measurement profiles which can be selected from a setup menu allow optimum
adaptation of the measurement technique to the specific application.
If the preset response value falls below the value of Alarm 1 and/or Alarm 2, the associated alarm relays switch, the LEDs Alarm 1 resp. Alarm 2 light and the measured value is
shown on the LC display (in case of insulation faults in DC systems, a trend graph for the
faulty conductor L+/L- is displayed). If the fault memory is activated, the fault message
will be stored. Pressing the reset button, resets the insulation fault message, provided
that the insulation resistance is at least 25 % above the preset response value. As
additional Information, the quality of the measuring signal and the time required to update the measured value are shown on the display. A poor signal quality (1-2 bars) may
be an indication that the wrong measurement profile has been selected.
The insulation monitoring device has an internal system isolating switch, which makes it
possible to operate several ISOMETER®s in coupled IT systems. For this purpose, the
ISOMETER®s are connected via an Ethernet bus. The integrated Isonet function ensures
that only one ISOMETER® is actively measuring at a time, while the other devices are completely isolated from the system and waiting in standby mode for measuring permission.
3.5Self test
After switching on the supply voltage, the ISOMETER® automatically and continuously
checks all internal measuring functions, the components of the process control such as
the data and parameter memory, as well as the connections to the IT system and earth.
The self test can also be activated manually by means of the test button to check the functions of the relays (depending on the configuration) or it can be selected via the "Control"
menu (refer to “Control” on page 40).
The progress of the manual self test is shown on the LC display by a bar graph. Depending
on the conditions in the IT system being monitored, the self test is completed after
15…20 seconds. The device then returns to the standard mode (measurement mode)
and the actual measured value will be displayed after the measuring time has expired.
The display shows the message
ured (refer to “Initial measurement” on page 29).
If a fault is detected during the self test, the respective LEDs of the device light (refer to
“Alarm messages” on page 57). In addition, the respective message will be indicated on
the display and a previously programmed output will provide the respective signal.
Initial measurement
until the first valid value is meas-
3.4Interfaces
• Communication protocol Modbus TCP
• BCOM for Bender device communication via Ethernet
• BS bus for communication of Bender devices (RS-485)
• Integrated web server for reading out measured values and for parameter setting
11
√
The test has been run and the result was positive.
The test has been run and the result was negative.
The test is not available and is not carried out
(e.g. due to specific device settings).
The test is running.
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 12
4. Device overview
4.1Dimensions
108 mm
110 mm
mm 39
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Device overview
ISOMETER® iso685-D-B
ISOMETER® iso685-S-B with front panel FP200 connected via an RJ45 cable
4.2Device variants
iso685-D-B:
iso685-S-B:
Option "W":
This device variant features a high-resolution graphic LC display and operating controls for direct operation of the device functions.
It cannot be combined with an FP200.
This device variant features neither a display nor operating controls.
It can only be used in combination with the FP200 and it is operated via this front panel.
The ISOMETER®s with and without integrated display are available with option "W" for extreme climatic and mechanical conditions
(ISOMETER® iso685W-D-B and iso685W-S-B).
13
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 14
Device overview
A1/+, A2/-Connection to the power supply voltage U
s
L1/+Connection to the IT system to be monitored
L2 Connection to the IT system to be monitored
L3/-Connection to the IT system to be monitored
KE, EConnection to PE
To p
ON
Display
RESET
DATA
LEDs: SERVICE,
ALARM 1, ALARM 2
MENU
ESC
TEST
INFO
OK
X3
iso685-D-B
REMOTE
X4
X3Optional expansion module for Bender devices (e. g. BB-Bus)
X4REMOTE interface to connect to the FP200
iso685-S-B
Back
Front
ETH
X1Digital interface
ETHEthernet interface
RSelectable resistance R
11 12 14Connector for alarm relay 1
21 22 24Connector for alarm relay 2
Bottom
4.3Connections and panel
14
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Page 15
Device overviewDevice overview
1
7
8
9
10
11
2
3
4
5
6
4.4Display elements and device buttons
Display elements
1ONThe LED "ON" lights when the device is turned on.
The device display shows information regarding the device and the meas-
2
3
SERVICE
4
ALARM 1
5
ALARM 2
urements.
Other information is available in the chapter“Display” from page 26.
The LED "SERVICE" lights when there is either a device fault or a connection
fault, or when the device is in maintenance mode.
The LED "ALARM 1" lights when the insulation resistance of the IT system
falls below the set response value R
The LED "ALARM 2" lights when the insulation resistance of the IT system
falls below the set response value R
an1
an2
.
.
Device buttons
You can adjust the device settings in the respective menu using the menu buttons.
Depending on the menu entry, one of the options displayed below is assigned to the
buttons.
MENUOpens the device menu.
6
ESC
7
TEST
8
RESET
9
Info
10
OK
DATA
11
Cancels the current process or
navigates one step back in the device menu.
Navigates up in a list or increases a value.
Starts the device self test.
Navigates forwards (e.g. to the next setting step) or
selects a parameter.
Resets alarms.
Navigates backwards (e.g. to the previous setting step) or
selects a parameter.
Shows information.
Confirms an action or a selection.
Indicates data and values.
Navigates down in a list or reduces a value.
15
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Page 16
5. Mounting
DANGER
72 mm
108 mm
54 mm
100 mm
107,3 mm
Mounting
5.1General instructions
Only qualified personnel are permitted to carry out the work necessary
to install, commission and run a device or system.
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
• An electric shock
• Damage to the electrical installation
• Destruction of the device
Before installing and connecting the device, make sure that the installation has been de-energised. Observe the rules for working on elec-
trical installations.
5.2Screw mounting
19. Fix the three mounting clips delivered with the device (two of them packed separately) manually or using a tool, as illustrated below.
20. Drill the mounting holes for the M4 thread according to the dimensioned drilling
template.
21. Fix the ISOMETER® using three M4 screws.
16
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 17
Connection
DANGER
DANGER
DANGER
WARNING
6. Connection
5.3DIN rail mounting
1. Fix the three mounting clips delivered with the device (two of them packed separately) manually or using a tool, as illustrated below.
2. Fix the ISOMETER® onto the DIN rail until it snaps into place.
6.1Connection requirements
Consider the minimum distance to adjacent devices:
lateral 0 mm, top 20 mm, bottom 20 mm.
Only qualified personnel are permitted to carry out the work necessary
to install, commission and run a device or system.
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
• An electric shock
• Damage to the electrical installation
• Destruction of the device
Before installing and connecting the device, make sure that the installation has been de-energised. Observe the rules for working on elec-
trical installations.
Risk of electric shock!
Nominal voltages up to 1000 V may be present on the terminals L1/+ to
L3/- which can be lethal. Make sure the terminal covers are properly
mounted and clicked in before putting the device into operation.
17
Risk of electric shock!
High voltage is applied at the terminals, which in case of direct contact
can be life-threatening. If the terminals L1/+, L2, L3/- of the device are connected to a live IT system, the terminals E and KE must not be disconnected
from the protective conductor (PE).
Warning of insulation monitoring devices that do not work correctly!
Connect the terminals KE and E individually to the protective earth conductor PE.
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 18
ConnectionConnection
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
Provide line protection!
According to DIN VDE 0100-430, a line protection shall be provided for the
supply voltage.
Risk of injury from sharp-edged terminals!
Risk of lacerations.
Touch the enclosure and the terminals with due care.
Ensure disconnection from the IT system!
When insulation or voltage tests are to be carried out, the device must be
isolated from the system for the test period. Otherwise the device may be
damaged.
Risk of property damage due to unprofessional installation!
If more than one insulation monitoring device is connected to a conductively connected system, the system can be damaged. If several devices
are connected, the device does not function and does not signal insulation faults. Make sure that only one insulation monitoring device is connected in each conductively connected system.
The ISOMETER® iso685-D-B is suitable for use in coupled systems. For the
necessary parameter setting, refer to “Special functions for coupled IT sys-
tems” from page 49
Prevent measurement errors!
When an AC system being monitored contains galvanically coupled DC
circuits, take into consideration that: an insulation fault can only be detected correctly when the rectifier valves carry a minimum current of
>10 mA.
For UL applications:
Use 60/70 °C copper lines only!
For UL and CSA applications, the supply voltage must be protected via 5 A
fuses.
18
Risk of property damage due to unprofessional installation!
The connecting lines L1/+, L2, L3/- to the system to be monitored must be
carried out as spur lines. Inadmissible load current can result in damage
to property and personal injury. Do not apply any load current to the terminals.
Check proper connection!
Prior to commissioning of the installation, check that the device has been
properly connected and check the device functions. Perform a functional
test using an earth fault via a suitable resistance.
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 19
ConnectionConnection
WARNING
L1
L2
L3
N
PE
U
S
U
n
WARNING
L1
L2
PE
U
n
U
S
6.2Connection to a 3(N)AC system
Risk of injury, fire and damage to property due to a short circuit!
According to DIN VDE 0100-430, devices used to protect against a short
circuit when terminals L1/+, L2 und L3/- are coupled to the IT system to be
monitored can be omitted if the wiring is carried out in such a manner as
to reduce the risk of a short circuit to a minimum. Ensure short-circuitproof and earth-fault-proof wiring.
6.3Connection to an AC system
Risk of injury, fire and damage to property due to a short circuit!
According to DIN VDE 0100-430, devices used to protect against a short
circuit when terminals L1/+, L2 und L3/- are coupled to the IT system to be
monitored can be omitted if the wiring is carried out in such a manner as
to reduce the risk of a short circuit to a minimum. Ensure short-circuitproof and earth-fault-proof wiring.
19
Position the terminal cover and click it into place
Position the terminal cover and click it into place
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 20
ConnectionConnection
WARNING
L+
L-
PE
U
S
U
n
Electrical overload protection.
Auto shut-off in the event of a short
circuit and transients (resettable)
Input 1
Input 2
Input 3
RS-485 A
RS-485 B
Ground
Analogue output
Output 2
Output 1
+24 V
6.4Connection to a DC system
Risk of injury, fire and damage to property due to a short circuit!
According to DIN VDE 0100-430, devices used to protect against a short
circuit when terminals L1/+, L2 und L3/- are coupled to the IT system to be
monitored can be omitted if the wiring is carried out in such a manner as
to reduce the risk of a short circuit to a minimum. Ensure short-circuitproof and earth-fault-proof wiring.
Position the terminal cover and click it into place
6.5Connection to the X1 interface
I1
I2
I3
A
B
M+
Q2
Q1
+
20
For systems > 690 V and with overvoltage category III a fuse for
the connection to the system to be monitored must be provided.
Recommendation: 2 A fuses.
Position the terminal cover and click it into place
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 21
ConnectionConnection
CAUTION
U
S
6.6Connection to the supply voltage
External Power supply for powering the ISOMETER® via terminal X1 must
fulfil immunity and emission standards of the required application. For
wiring longer than 1 m the use of a shielded cable is prescribed.
Danger of damage to property due to faulty connections!
The device can be damaged if the unit is simultaneously connected to the
supply voltage via the X1 interface, and A1/+ and A2/- terminals. Do not
connect the device simultaneously via X1, and A1/+ and A2/- to different
supply voltages.
6.7Connection to the Ethernet interface
Position the terminal cover and click it into place
21
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Page 22
ConnectionConnection
11
12
14
Relay 1
Common contact
Normally open (n.o)
Normally closed (n.c)
21
22
24
Relay 2
Common contact
Normally closed (n.c)
Normally open (n.o)
6.8Connection to the relay 1 interface (11 12 14)
Position the terminal cover and click it into place
6.9Connection to the relay 2 interface (21 22 24)
Position the terminal cover and click it into place
22
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Page 23
7. Commissioning
Commissioning the ISOMETER®
Adjust basic settings if
necessary
Install the device according to the
wiring diagram
and documentation
Connect the supply voltage
Connect the system voltage
The ISOMETER® performs a self
test
Function test with a suitable
resistance between system and
earth. Resistance value: 50% of
the response value Alarm 2
Remove the resistance
The ISOMETER® is properly
connected and
functions reliably
Run the commissioning
wizard
For further information regarding device settings, refer to chapter “Settings”
from page 33.
Commissioning
7.1General initial commissioning process
1. Check that the ISOMETER® is properly connected to the system to be monitored.
2. Connect the supply voltage to the ISOMETER®. Adjust the device using the commissioning wizard. Afterwards, the ISOMETER® performs a self test in four steps. The
alarm relays are not checked during this test. After completion of the test, the measured insulation resistance is shown on the display. If the value exceeds the response
values indicated in the lowest line of the display, the message "OK" will additionally
be displayed.
For customer-specific configured devices, the commissioning wizard
might be deactivated and cannot be run. In this case, the device is preset.
3. Check the ISOMETER® in the system being monitored, e.g. using a suitable resistance
to earth.
After setting the response value R
first measurement and outputs the measured insulation resistance values of the IT system being monitored, then commissioning is completed.
However, the commissioning wizard can be started as described at
“Recommissioning” on page 25.
Observe device status!
The device is in an alarm state until initial commissioning has been
completed.
for alarm 2, the device starts a self test, makes the
an2
Commissioning flow chart
23
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 24
CommissioningCommissioning
Language5.6.2
o Deutsch
• English
o Espanõl
o Français
o Norsk
Date 5.6.4
14.08.2016
min. 1
max. 31
Commissioning 5.6
Please set the
current date
and time.
2/10
System type 5.6.6
• DC
o AC
o 3AC
Commissioning 5.6
Please choose the
type of system
that best suits
your installation.
5/10
Profil e 5.6.8
• Power circuits
o Control circuits
o Generator
o High capacitance
o Inverter>10 Hz
o Inverter<10 Hz
Commissioning 5.6
Please select a
profile that suits
your application.
7/10
7.2Initial commissioning
Check network function!
When the device is integrated into a network, the influence on the
network has to be checked with the device switched on and off.
Follow the instructions of the commissioning wizard on the display.
7.2.1 Set language
The language selected here will be used in the menu and for device messages.
7.2.2 Set time and date
Alarm messages in the history memory and the insulation resistance value over time can
only be assigned correctly to the isoGraph when the date and time are set correctly.
7.2.3 Set system type
By setting the system type the insulation monitoring device can be optimally adapted to
the system to be monitored. The system type is essential information for the insulation
monitoring device in order to determine the insulation resistance correctly.
7.2.4 Set profile
In order to adapt the insulation monitoring device optimally to the system to be monitored, select a profile here that suits your system. For an overview of the profiles refer to
“Device profiles” on page 52. The profile "power circuits" is suitable for most IT systems.
24
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 25
CommissioningCommissioning
Alar m 1 5.6.9
40 kΩ
Min.
Max.10MΩ
1kΩ
Commissioning 5.6
Please set
response value
for R(an1) for
Alarm1.
8/10
Alar m 2 5.6.10
10 kΩ
Min.
Max.10MΩ
1kΩ
Commissioning 5.6
Please set
response value
for R(an2) for
Alarm2.
9/10
7.2.5 Set response value R
for Alarm 1
an1
You can set the prewarning response value here.
A value of 100 Ω/V is recommended for prewarning.
7.2.6 Set response value R
for Alarm 2
an2
You can set the response value for the main alarm here.
A value of 50 Ω/V is recommended for the main alarm.
7.3Recommissioning
If the device has already been put into operation before, the self test will be started shortly after the supply voltage has been connected. Start the commissioning wizard using the
menu path:
Menu/Device settings/Commissioning
This menu can be used to modify settings made previously.
Observe the device status!
The device changes from the alarm state to normal state after
completing initial commissioning and initial measurement by adhering to the response values set.
25
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 26
8. Display
IT System
OK
230 kΩ
R(an) 40kΩ/10kΩ
OK
230 kΩ
7 kΩ
Insulation fault
7 kΩ
1/4
Display
8.1Standard display
During normal operation, the ISOMETER® displays the message OK and below, the
currently measured insulation resistance.
The signal quality of the measurement suits the selected profile.
The better the signal quality, the faster and more exact the device can
measure.
The signal quality of the measurement does not suit the selected profile. Select a different measurement profile.
Update period between the test pulses
In the bottom line of the display, the set limit values for R(an) are indicated.
In the example below, R
=40 kΩ and R
an1
an2
=10 kΩ.
8.2Fault display (active)
An active fault is displayed by . The upper part of the display will become orange and
displays the fault message.
Depending on the type of fault, the LEDs ALARM 1, ALARM 2 or SERVICE are activated.
In the example below, the insulation resistance is still 7 kΩ. Since the values R
and R
triggered.
If several fault messages have appeared, you can navigate through the faults using the
=10 kΩ are both below the set response value, ALARM 1 and ALARM 2 have been
an2
and button.
an1
=40 kΩ
26
If the value falls below R
additional detailed information regarding the DC shift will be displayed, as illustrated
above.
in a DC system or a DC shift is recognised in an AC system,
an1
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 27
8.3Fault display (inactive)
230 kΩ
IT System
3x
1/4
230 kΩ
Insulation fault
28.03.14 17:0 2
28.03.14 17:18
2/4
7 kΩ7 kΩ
An inactive fault is displayed by . If several faults have occurred, the number of faults
will also be indicated.
This message means that there has been a fault in the past but the device is no longer in
fault condition.
DisplayDisplay
If several fault messages occur, navigate through the faults using the and button. In
addition to the type of fault and the associated alarm value when the fault has occurred
and how long it has been active will be shown.
27
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Page 28
DisplayDisplay
RESET 3.2
Reset current
messages? All
messages are
saved in the
history memory.
Cancel RESET
1,0
,10 0
,010
,001
MΩ
Hour 16:26 16:52
Data-isoGraph 2
1/4
Change parameter value
Leave view
Modify scale
Modify scale
Change parameter value
Current time scale
8.4Acknowledge fault memory
In order to acknowledge the fault message and return to the ISOMETER®'s standard
display, all faults must be acknowledged by means of the reset button.
This means that fault messages can only be reset when the cause of the fault has been
eliminated.
Press the reset button, then and OK to clear the fault memory.
The ISOMETER® then returns to the standard display.
8.5Data-isoGraph
The isoGraph represents the chronological sequence of the insulation resistance over
time. This graphical representation can be displayed over the following time periods:
hour, day, week, month and year.
The measured values for individual representations are stored in a separate memory. Up
to 100 measured values are available to represent each graph and the resolution of each
graph is determined by these values.
28
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 29
DisplayDisplay
Next message
Leave view
Fault description
Alarm value
Feault occured
Fault disappeared
Previous message
Number of selected
errors/
Tot a l number of
error messages
IT System
R(an) 40kΩ/10kΩ
Initial
measurement
Initial
measurement
8.6History memory
Up to 1023 alarm messages and device errors are stored in the history memory with date
and time stamp. When the history memory is deleted, the minimum insulation resistance
will also be reset at Menu/Data Measured values - Data insulation.
R
min
History 4.1
Insulation fault
11kΩ
28.03.14 17:02
28.03.14 17:18
8/8
8.7Initial measurement
During the initial measurement, the device records all measured values.
All measured values that may have been recorded before will be discarded if a new initial
measurement is started.
29
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DisplayDisplay
IT system
ISOnet activeISOnet active
R(an) 40kΩ/10kΩ
230 kΩ230 kΩ
IT system
Automatic testAutomatic test
R(an) 40kΩ/10kΩ
8.8ISOnet mode
The ISOMETER® displays the message „ISOnet active“, if the ISOMETER® works in the
ISOnet mode but does not measure at the moment. The "ON" LED lights continuously and
the bar indicating the progress of measurement is not pulsing.
The LED „ON“ blinks and the bar indicating the progress of measurement is pulsing,
if the ISOMETER® measures actively in the ISOnet mode.
The ISOMETER® performs an automatic test. During this test, the ISOMETER® checks the
connections to the IT system and earth. Afterwards, the ISOMETER® performs an initial
measurement and records all measured values (see page 29).
Hereafter, the ISOMETER® measures for one measuring cycle and then forwards the authorisation for insulation measurement to the ISOMETER® with the next higher address.
30
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9. Menu
1. Alarm settings1. Insulation alarm1. Alarm 1
2. Alarm 2
3. Memory
2. DC Alarm1. Alarm
2. U(DC-E)
3. Profile
4. System type
5. ISOnet1. ISOnet
2. number of devices
6. Device
7. t(start)
8. Coupling monitoring
9. Inputs1. Digital 11. Mode
2. t(on)
3. t(off)
4. Function
2. Digital 21. Mode
2. t(on)
3. t(off)
4. Function
3. Digital 31. Mode
2. t(on)
3. t(off)
4. Function
10
.
Ausgänge1. Relais 11. Test
2. Relay mode
3. Function 1
4. Function 2
5. Function 3
2. Relais 21. Test
2. Relay mode
3. Function 1
4. Function 2
5. Function 3
3. Digital 11. Test
2. Relay mode
3. Function 1
4. Function 2
5. Function 3
4. Digital 21. Test
2. Relay mode
3. Function 1
4. Function 2
5. Function 3
5. Summer1. Test
2. Function 1
3. Function 2
4. Function 3
6. Analog1. Mode
2. Midscale
3. TEST
4. Function
2. Data meas. values
3. Control
4. History
5. Device settings1. Language
2. Cloc
k
1. Time
2. Format
3. Summer time
4. Date
5. Format
6. NTP
7. NTP Server
8. UTC
3. Interface1. Write access
2. Ethernet1. DHCP
2. IP
3. SN
4. Std. GW
5. DNS Server
6. Domäne
3. BCOM1. System name
2. Subsystem
3. Device address
4. Timeout
5. TTL
4. Modbus TCP1. Port 502
5. BS-Bus1. Address
4. Displa
y
1. Brightness
5. Passwort1. Passwort
2. Status
6. Commissioning
7. Data protection
8. Service
6. Info
9.1Menu structure
31
Menu
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 32
9.2Operating and navigating
Language5.6.2
o Deutsch
• English
o Espanõl
o Français
o Norsk
Date 5.2.4
14.01.2014
min. 1
max. 31
Ethernet 6.3.2
-.0123456789abcdef
ghijklmnopqrstuvwx
yz del
Navigate through the device menu using the device buttons. The functions of the device
buttons are described in the chapter “Display elements and device buttons” on page 15.
9.2.1 Easy operation
Navigation in lists
To make a selection in a list, navigate using
the and buttons to the required
menu item. Then click "OK".
Navigation with arrows
You can increase or decrease a value using
the and buttons. You can move to
the left or the right to set different values
using the and buttons. The value positioned between the symbols is the value that is set.
MenuMenu
Text input
Go step by step through the numbers and
letters indicated on the display by using
the button (forwards) and the button
(backwards). Navigate to the right using
the button to enter the next character.
To delete a character that has been entered, use the and buttons to navigate to the character to be deleted and
then select "del" using the and buttons.
Confirm the entered text with "OK".
32
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10. Settings
120 V
t
V
DC+
DC-
100 V
200 V
0 V
-80 V
-100 V
R
f
R
f
U1
U1
U2
U2
U
DC-E
=(U1+U2)/2=(120 V-80 V)/2=20 V
U
DC-E
Settings
10.1 Settings in the device menu
The settings of the ISOMETER® are explained in the order of the device menu.
10.1 (1.0)Alarm settings
The limit values for the insulation resistances of alarm 1 and alarm 2 can be specified in
the alarm settings menu and can be adapted to the user profile of the ISOMETER®.
A device password is required for entering the settings. You can adjust the following
functions:
10.1 (1.1) Insulation alarm
In the Insulation alarm menu, the ISOMETER® limit values for alarm 1 and alarm 2 can be
set.
Activation or deactivation of the two alarm levels R
(alarm 1) and R
an1
illustrated in the following graphic:
An alarm will become inactive as soon as the hysteresis of the set operating value is
exceeded.
R
Alarm 1
inactive
hysteresis
R
an1
R
an2
Alarm 1
active
Alarm 2
active
hysteresis
Alarm 2
inactive
(alarm 2) are
an2
t
10.1 (1.1.3) Fault memory
Automatic reset of inactive faults at the outputs relay 1, relay 2, digital output 1, digital
output 2:
•on
•off
If a fault becomes inactive, the programmed outputs remain
in fault condition until they are reset manually.
If a fault becomes inactive, the programmed outputs automatically change the state.
10.1 (1.2) DC alarm
The DC alarm is triggered in the event of a DC offset voltage (U
) in the system.
DC-E
10.1 (1.2.1) Alarm
•on
•off
The DC alarm is triggered in the event of a DC offset voltage.
The DC alarm is NOT triggered in the event of a DC offset
voltage.
10.1 (1.2.2) U(DC-E)
Set the DC alarm to a value between 20 V and 1 kV.
10.1 (1.1.1) Alarm 1
For ALARM 1 an insulation resistance of 1 kΩ…10 MΩ can be set irrespective of ALARM 2.
10.1 (1.1.2) Alarm 2
For ALARM 2 an insulation resistance of 1 kΩ…10 MΩ can be set irrespective of ALARM 1.
33
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SettingsSettings
10.1 (1.3) Profile
Adapt the area of application of the ISOMETER® to your system profile. For a description
of the profiles, refer to “Device profiles” on page 52.
The following can be selected:
•Power circuits
•Control circuits
•Generator
•High capacitance
•Inverter > 10 Hz
•Inverter < 10 Hz
Suitable for most IT systems.
Not recommended for voltages > 230 V.
Fast measuring times, fast fault location possible.
Suitable for system with high leakage capacitances.
Suitable for systems with dynamic frequency control by
inverters in the range 10…460 Hz.
Suitable for systems with extremely low frequency control
in the range 1…460 Hz.
10.1 (1.4) System type
Adapt the ISOMETER® to the IT system to be monitored. The following can be selected:
•DC
•AC
•3AC
DC system
(refer to “Connection to a DC system” on page 20)
Single-phase AC system
(refer to “Connection to an AC system” on page 19)
3AC system
(refer to “Connection to a 3(N)AC system” on page 19)
10.1 1.5.1ISOnet
Activate or deactivate the ISOnet function
•off
•BCOM
The ISOnet is deactivated
The ISOnet function is activated via BCOM
10.1 1.5.2Number of devices
Configure the number of devices (2…20) in a subsystem.
10.1 (1.6) Device
Set the ISOMETER® insulation resistance measurement function to active or inactive:
•Active
•Inactive
10.1 (1.7) T(Start)
The device is active.
The device DOES NOT measure the insulation resistance, the
message
IT system is NOT being monitored!
Device inactive appears on the display. The
The ISOMETER® can be operated with a start-up delay of 0…120 seconds. The start-up is
delayed until the initial measurement takes place.
10.1 (1.8) Coupling monitoring
The ISOMETER® continuously monitors the coupling of energised systems. The coupling
of de-energised systems is monitored at 8-hour intervals. This monitoring function can be
activated or deactivated.
10.1 1.5ISOnet
Make the settings to use the ISONet function.
The ISOnet function ensures via the Ethernet connection that only one ISOMETER® of the
interconnection is active when several ISOMETER®s are connected to an IT system.
For further information regarding the ISOnet function, refer to “System isolation via ISOn-
et” from page 50.
34
•on
•off
Coupling monitoring is activated.
Coupling monitoring is deactivated.
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 35
10.1 (1.9) Inputs
I2
I3
A
B
M+
Q2
Q1
+
Device
inactive
ResetTest
I1
+I
x
X1X1
t
0
1
t(on)
Reaction
Impulse on
Reaction
Impulse o
+I
x
X1X1
The ISOMETER® provides a total of three digital inputs.
The exemplary wiring diagram shows how the digital inputs can be wired:
SettingsSettings
•Active low
1
An event is carried out on the falling edge of the digital input (high to
low).
Response time t(on)/t(off) after a switch-off signal.
10.1 (1.9.1) Digital 1
The following parameters can be set for the digital input:
10.1 (1.9.1.1) Mode
The operating mode for the digital input can be set to the following values:
•Active high
< t(on)
An event is carried out on the rising edge of the
digital input (low to high).
Response time t(on)/t(off) after a switch-on signal.
ReactionReaction
0
< t(on)
t(on)
Impulse onImpulse o
t
10.1 (1.9.1.2) t(on)
The response time t(on) after a switch-on signal can be set between 100 milliseconds and
300 seconds (refer to “10.1 (1.9.1.1) Mode”).
10.1 (1.9.1.3) t(off)
The response time t(off) after a switch-off signal can be set between 100 milliseconds and
300 seconds (refer to “10.1 (1.9.1.1) Mode”).
35
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SettingsSettings
≥ 1
Response
Function 1
Function 2
Function 3
10.1 (1.9.1.4) Function
The parameters for the function of the digital inputs of the ISOMETER® can be set
differently:
•off
•TEST
•RESET
•Deactivate
device
•Start initial
measurement
Digital input without function
Device self test
Reset of fault and alarm messages
The device DOES NOT measure the insulation resistance, the message
Device inactive appears on the display.
The IT system is NOT being monitored!
The device uncouples itself from the system to be monitored through
an internal system isolating switch.
All recorded measurements are discarded and a new measurement is
started
10.1 (1.9.2) Digital 2
Refer to “10.1 (1.9.1) Digital 1”.
10.1 (1.9.3) Digital 3
Refer to “10.1 (1.9.1) Digital 1”.
10.1 (1.10) Outputs
The ISOMETER® provides a total of six outputs.
The following parameters can be set for the outputs:
10.1 (1.10.1) Relay 1
The following parameters can be set for each relay:
10.1 (1.10.1.1) TEST
The functional test of the relay can be activated or deactivated. This only applies to the
manual test and not to the cyclic device self test:
•on
•off
The manual test checks the switching function of the relay
The manual test does not check the switching function of the relay
10.1 (1.10.1.2) Relay mode
The relay mode can be adapted to the application:
•N/C
•N/O
Normally closed- N/C operation contacts11-12-14 / 21-22-24
(in fault-free condition, the alarm relay is energised).
Normally opened - N/O operation contacts
(in fault-free condition, the alarm relay is de-energised).
11-12-14 /
21-22-24
10.1 (1.10.1.3) Function 1
Up to three functions can be assigned to one output. The functions are linked to an OR
operator:
36
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SettingsSettings
DC+ alarm
Symmetrical alarm
DC- alarm
0 %
25 %
50 %
75 %
100 %
Select the appropriate setting for function 1. The following parameters can be set.
•off
•Ins. Alarm 1
•Ins. Alarm 2
•Connection fault
•DC alarm
•DC+ alarm
The function is not used.
The status of the output changes when the value falls below the set
response value R
The status of the output changes when the value falls below the set
response value R
The status of the output changes when one of the following connection fault occurs:
• No low-resistance connection between the line conductors.
• No low-resistance connection between the terminals E and KE to
earth (PE).
• The load connected to the current output is too low
• The load connected to the current output is too high.
• Load on X1 too high.
The status of the output changes in case of an earth fault in the
direction of DC when 75 % of the value are exceeded. This does not
concern symmetrical faults. This function will only be carried out
when the value falls below the response value R
when the nominal system voltage is U
The status of the output changes in case of an earth fault in the
direction of DC+ when 25 % of the value are exceeded. This does not
concern symmetrical faults. This function will only be carried out
when the value falls below the response value R
when the nominal system voltage is U
an1.
an2.
≥ 50 V.
n
≥ 50 V.
n
an1
an1
or R
or R
an2
an2
and
and
•Device fault
•Common alarm
•Measurement
complete
•Device inactive
•DC offset alarm
The status of the output changes in the event of an internal device
fault.
The status of the output changes on the occurrence of any alarm
and fault messages
(Ins. alarm 1 & 2, DC- / DC+ alarm, symmetrical alarm, connection
and device faults).
The status of the output changes at the end of the initial
measurement.
The status of the output changes when the device has been
deactivated via a digital input or the control menu.
The status of the output changes on the occurrence of a DC offset
voltage in the system.
10.1 (1.10.1.4) Function 2
Refer to “10.1 (1.10.1.3) Function 1”.
10.1 (1.10.1.5) Function 3
Refer to “10.1 (1.10.1.3) Function 1”.
10.1 (1.10.2) Relay 2
Refer to “10.1 (1.10.1) Relay 1”.
10.1 (1.10.3) Digital 1
The following parameters can be set for each of the digital outputs:
•Symmetrical
alarm
37
The status of the output changes in the event of a resistance ratio
between DC+ and DC- of 25 % to 75 %.
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 38
SettingsSettings
X1
iso685
Qx
+
X1
iso685
Qx
+
oder
X1
iso685
+
Qx
X1
iso685
+
Qx
internal
external
10.1 (1.10.3.1) TEST
The following parameters can be set for each of the digital outputs:
The functional test of the digital output can be activated or deactivated. This only applies
to the manual test and not to the cyclic device self test:
•on
•off
The manual test changes the status of the digital output.
The manual test does not change the status of the digital output.
10.1 (1.10.3.2) Mode
The following settings can be used to set the operating mode for the digital output:
•Active
•Passive
In the active mode +24 V will be internally applied across the output.
In the passive mode ≤ 32 V are externally connected (see technical
data). The output switches the applied potential to ground.
10.1 (1.10.3.3) Function 1
Refer to “10.1 (1.10.1.3) Function 1”.
10.1 (1.10.3.4) Function 2
Refer to “10.1 (1.10.1.3) Function 1”.
10.1 (1.10.3.5) Function 3
Refer to “10.1 (1.10.1.3) Function 1”.
10.1 (1.10.4) Digital 2
Refer to “10.1 (1.10.3) Digital 1”.
10.1 (1.10.5) Buzzer
The following parameters can be set for the buzzer:
10.1 (1.10.5.1) TEST
The functional test of the buzzer can be activated or deactivated. This only applies to the
manual test and not to the cyclic device self test:
•on
•off
The manual test activates the buzzer sound.
The manual test does not activate the buzzer sound.
10.1 (1.10.5.2) Function 1
Refer to “10.1 (1.10.1.3) Function 1”.
10.1 (1.10.5.3) Function 2
Refer to “10.1 (1.10.1.3) Function 1”.
38
Observe the maximum output current!
Maximum output current in case of internal voltage supply
via A1/+ and A2/-: 200 mA in total to X1.
Also refer to the formula for calculating I
LmaxX1
der “Digital Outputs (Q1, Q2)” on page 61.
10.1 (1.10.5.4) Function 3
Refer to “10.1 (1.10.1.3) Function 1”.
10.1 (1.10.6) Analogue
The following parameters can be set for the analogue output:
in the Technical Data un-
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Page 39
SettingsSettings
M
+
X1X1
A
M
+
X1X1
V
I/U20 mA / 400 µA
10 V
0 mA / 4 mA
0 V / 2 V
1 k
1 M
100
100 k
Ω
28 kΩ
120 kΩ
I/U20 mA / 400 µA
10 V
0 mA / 4 mA
0 V / 2 V
120 kΩ28 kΩ
RF =
(A2 - A1) * R
SKM
- R
SKM
A
3
- A
1
R
SKM
= 28 kΩ or 120 kΩ/midscale
A3= Measured value analogue output
R
F
= Insulation fault in kΩ
10.1 (1.10.6.1) Mode
The following values can be set for the operating mode of the analogue output
Current output
•0-20 mA
•4-20 mA
•0-400
μA
Permissible load ≤ 600 Ω
Permissible load ≤ 600 Ω
Permissible load ≤ 4 kΩ
Voltage output
•0-10 V
•2-10 V
Permissible load ≥ 1 kΩ
Permissible load ≥ 1 kΩ
10.1 (1.10.6.2) Midscale
Select the appropriate midscale. The following parameters can be set:
•Linear
The switching signal is linear to the insulation resistance in the indicated measuring range.
•28 k
•120 k
Ω
Ω
The switching signal is analogue to the mid scale of 28 kΩ or 120 kΩ
on a measuring instrument.
Calculation of the insulation resistance using the analogue output:
Lower value
Analogue output A
0 mA
4 mA
0 µA
0 V
2 V
Upper value
Analogue output A
1
20 mA
20 mA
400 µA
10 V
10 V
2
10.1 (1.10.6.3) TEST
The functional test of the analogue output can be activated or deactivated. In this way,
the analogue output is adjusted once for the enti re ra nge. This o nly a ppli es to t he ma nual
test and not to the cyclic device self test:
39
•on
•off
The manual test checks the analogue output function.
The manual test does not check the analogue output function.
iso685-D-B_D00177_05_M_XXEN/07.2017
Page 40
SettingsSettings
DC+ alarm
Symmetrical alarm
DC- alarm
0 %
25 %
50 %
75 %
100 %
0 V/2 V
0 mA/4 mA
0 µA
10 V
20 mA
400 µA
10.1 (1.10.6.4) Function
Select the appropriate setting for the analogue output. The following parameters can be
set.
•Insulation value
•DC offset
Depending on the measured insulation value, an analogue current
or voltage signal is provided at the output.
Depending on the measured DC offset, an analogue current or voltage signal is provided at the output. This setting can only be used
when Linear is selected in the menu "Midscale".
10.1 (2.0) Data measured values
The ISOMETER® stores certain measured values for a specific period of time. You can view
these data at the "Data meas. values" menu point. Navigate through the different views
using the and buttons:
•isoGraph data
Displays the insulation resistance and chronological sequence.
See“Data-isoGraph” on page 28.
10.1 (3.0) Control
In the control menu, you can start a manual test reset, reset alarm messages and start an
initial measurement:
•TEST
•RESET
•Start initial
measurement
Manual device test
Reset of fault and alarm messages
All recorded measurements are discarded and a new measurement
is started
10.1 (4.0) History
In the history menu, the faults detected by the ISOMETER® are displayed. For a detailed
functional description, refer to “History memory” on page 29.
•History
•Delete
Overview of faults that have occurred
Reset the history memory
10.1 (5.0) Device settings
The device settings menu allows you to configure the basic settings for the ISOMETER®.
10.1 (5.1) Language
Choose the language to be displayed by the ISOMETER®. For example, you can set the languages:
•Insulation data
•IT system data
•IT system data
40
Displays the current insulation resistance, the minimum insulation
resistance measured and the system leakage capacitance.
Displays the system phase-to-phase voltages and the mains frequency (r.m.s. values)
Displays the system phase-to-earth voltages
•German
•English
•...
10.1 (5.2) Clock
In the clock menu you can set the display format of time and date for the ISOMETER®:
iso685-D-B_D00177_05_M_XXEN/07.2017
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SettingsSettings
10.1 (5.2.1) Time
Based on the selected time format you can set the current time to display 24-hour or 12hour notation (am/pm).
10.1 (5.2.2) Format (time)
Select the appropriate time format to be displayed:
•12 h
•24 h
12-hour notation am/pm
24-hour notation
10.1 (5.2.3) Summer time
Summer time can be considered in the following settings:
•off
•DST
•CEST
No automatic change between summer time and standard time.
Daylight Saving Time
Automatic change between summer and standard time according to
North American regulation.
North American summer time begins on each second Sunday in
March at 02:00 local time by setting the clock forward by one hour
from 2:00 to 03:00 local time. Summer time always ends the first Sunday in October at 03:00 local time by setting the clock back one hour
from 3:00 to 2:00.
Central European Summer Time
Automatic change between summer time and standard time according to Central European regulation.
Central European summer time begins on each last Sunday in March
at 02:00 CEST by setting the clock forward by one hour from 2:00 to
03:00. Central European summer time always ends on the last Sunday in October at 03:00 CEST by setting the clock back one hour
from 3:00 to 2:00.
10.1 (5.2.4) Date
Based on the selected date format you can set the current date.
10.1 (5.2.5) Format (date)
Select the appropriate date format you want to be displayed:
•dd.mm.yy
•mm-dd-yy
day, month, year
month, day, year
10.1 (5.2.6) NTP
Select if you would like to synchronise the current time via NTP. You have to configure the
NTP server in order to use this function (see “NTP server” on page 41
•on
•off
Synchronisation via NTP server is activated.
Synchronisation via NTP server is deactivated.
).
10.1 (5.2.7) NTP server
Set the IP address of the NTP server.
10.1 (5.2.8) UTC
Set the time according to UTC (coordinated world time). For Germany, set +1 for wintertime (MEZ) and +2 for summer time (MESZ).
10.1 (5.3) Interface
Set the parameters for the connection of other devices to the ISOMETER® in the interface
menu:
41
When set to DST or CEST, changing between summer time and normal time
is only done on the date of the official time change.
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SettingsSettings
10.1 (5.3.1) Write access
Set whether the device can be parameterised externally via Modbus or web server. Displaying and reading out data via Modbus and web server is always possible, regardless of
this setting.
•Allow
•Deny
Allow external parameter setting.
Refuse external parameter setting.
10.1 (5.3.2) Ethernet
Set the parameters for communication with other devices via the Ethernet interface.
The Ethernet interface can be used for communication with Modbus, web server and
BCOM.
10.1 (5.3.2.1) DHCP
Select whether you want to use automatic address assignment via your DHCP server.
When the automatic IP address assignment is activated, the IP address, subnet mask and
the standard gateway are assigned automatically. When the automatic IP address assignment is deactivated, you have to make these settings manually in the menu.
The IP address can be viewed in the “Info“ menu (see “Info” on page 43).
•on
•off
Activate automatic IP address assignment.
Deactivate automatic IP address assignment.
10.1 (5.3.2.2) IP
Set the appropriate IP address for the ISOMETER®.
10.1 (5.3.2.3) SN
Set the appropriate subnet mask.
10.1 (5.3.2.4) Std. GW
If a standard gateway is used, enter the IP address here.
Ensure that the IP address of the standard gateway suits the subnet mask, so that the
ISOnet function can operate correctly.
10.1 (5.3.2.5) DNS server
If a DNS server is used, enter the server's IP address.
Contact your network administrator in case you have questions about the configuration
of the DNS server.
10.1 (5.3.2.6) Domain
Enter the domain.
Contact your network administrator in case you have questions about the configuration
of the domain.
10.1 (5.3.3) BCOM
Set the parameters for communication with other devices via BCOM.
For further information, refer to “BCOM” on page 44.
10.1 (5.3.3.1) System name
Set the system name of the network in which the devices are located. In order to guarantee that all devices are able to communicate via BCOM, all devices must have the same
system name.
10.1 (5.3.3.2) Subsystem
Configure the subsystem address of the network in which the devices are located. The devices can communicate with subsystems with the same or different subsystem addresses.
EXCEPTION: In order to use the ISOnet functions, the devices must have the same subsystem address.
10.1 (5.3.3.3) Device address
Assign a device address. Each device must have a different address to distinguish it from
another in the system and ensure correct communication.
10.1 (5.3.3.4) Timeout
Set the timeout for messages between 100 ms…10 s.
This time specification defines the maximum permissible time for a device to respond.
When exceeding the timeout time in the ISOnet, the fault message "Failure address" is
shown.
10.1 (5.3.3.5) TTL for subscription
Set a time between 1 s…1092 min.
This time defines the intervals at which the ISOMETER® sends messages to e.g. a gateway.
Severe alarms (e.g. insulation alarms or substantial value changes) are always sent immediately.
10.1 (5.3.4) Modbus TCP
Settings for communication with other devices via Modbus TCP.
For further information, refer to “Modbus TCP” on page 44.
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SettingsSettings
10.1 (5.3.4.1) Port 502
Choose whether Modbus TCP should be used:
•on
•off
Modbus TCP can be used for communication with other devices.
Modbus TCP cannot be used for communication with other devices.
10.1 (5.3.5) BS bus
Set the parameters for communication with other devices via the Bender sensor bus.
For further information, refer to “BS bus” on page 48.
10.1 (5.3.5.1) Address
Select an address between 1 and 90 for the Bender sensor bus.
10.1 (5.4) Display
Adjust the display brightness for the ISOMETER® in the display menu:
10.1 (5.4.1) Brightness
Adjust the display brightness between 0 % and 100 % in steps of 10.
If no button is pressed on the display for 15 minutes, the brightness of the display is reduced. If now a button is pressed, the normal brightness is restored.
10.1 (5.5) Password
Use the password function to protect the device parameters against unauthorised adjustment. The default password is 0000.
10.1 (5.5.1) Password
Enter an individual four-digit password.
10.1 (5.5.2) Status
Decide if the password query should be used:
10.1 (5.6) Commissioning
In the commissioning menu you can open the ISOMETER®'s commissioning wizard again.
10.1 (5.7) Data backup
In the data backup menu device settings can be saved or device settings already saved
can be restored.
•Save
•Restore
The ISOMETER® saves your device settings.
The ISOMETER® restores your initial device settings.
10.1 (5.8) Service
The service menu can only be accessed by Bender Service staff.
10.1 (6.0) Info
The ISOMETER®'s current settings can be viewed in the Info menu. Navigate through the
different views using the and buttons:
•Device
•Software
•Measurement
-technique
•Clock
•Ethernet
•BS bus
Device name, serial number, article number
Software version measurement technique,
software version HMI
Selected profile, selected system type
Time, date, summer time
IP address, DHCP status, MAC address
BS address of the device
•on
•off
43
Password query active
Password query inactive
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11. Device communication
Device communication
11.1 Ethernet interface
The Ethernet interface can be used for communication with Modbus, web server and
BCOM.
11.2 BCOM
BCOM is intended for communication between Bender devices via Ethernet.
All devices that communicate via BCOM must have the same system name. Devices can
be organised in subsystems. Each device requires an individual device address.
For more information regarding BCOM, refer to the BCOM manual (D00256)
at http://www.bender.de/manuals.
When address 0 has been set for communication via BCOM the device can
be accessed via the network (e.g. for parameter setting, etc.) but it cannot
communicate with other devices.
11.3 Modbus TCP
Modbus is an international widely used protocol for data transfer between devices.
All measured values, messages and parameters are stored in virtual register addresses.
Data can be read out with a read command on the register address. With a write command, data can be written into a register address.
The register addresses of the individual measured values und parameters can be found
in the manual "iso685-D Annex A" with the title "ISOMETER® iso685 device family - Modbus settings" at http://www.bender.de/manuals.
11.4 Web server
The ISOMETER® has an integrated web server which displays ISOMETER® data comfortably on every PC via a web browser. The web server can be used to read out measured values and parameterise the ISOMETER®s. You can access the web server by entering the IP
address of the ISOMETER® into the browser (e.g. http://192.168.0.5). The Info menu provides information about the ISOMETER®‘s IP address (see 10.1 (6.0) “Info” on page 43).
The web server offers the following functions:
• Visualisation
• Indication of device information (e.g. device type, software version, etc.)
• Indication of current device settings.
• Indication of alarm messages.
• Indication of the Modbus information of the individual parameters.
• Indication of the interfaces in use.
• Overview of the current measured values.
• Detailed graphic representation of the insulation resistance (isoGraph).
• Fast and simple visualisation without any programming.
• Parameter setting
• Easy and fast parameter setting of the device.
• Easy assignment and edition options of device and measuring channel texts.
• Maintenance
• Data storage of specific events for fast support by Bender Service.
44
A maximum of 5 TCP/IP connections can be used simultaneously.
In order to be able to parameterise the device externally via Modbus, the
menu item "Allow" must have been set in the "Write access" menu (see
“Write access” on page 42).
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A maximum of 5 TCP/IP connections can be used simultaneously.
1
2
3
4
Only one device may access the web server at the same time. If several devices try to access the web server it may result in timeouts.
The write access is deactivated by default in the device menu (= Deny). To
be able to set parameters via the web server the write access must first be
activated in the device menu (= Allow) (see “Write access” on page 42).
Use the web server preferably with the following web browsers:
Google Chrome, Mozilla Firefox or Internet Explorer.
Device communicationDevice communication
Web server device menu (first level)
Legend for web server device menu (first level)
1STARTIndication of general device information.
2DEVICE
3ALARMSIndication of alarm messages.
PARAMETER
4
ADDRESSES
Indication of an overview of alarm values and measured values.
Indication of the settings. Settings can be changed here.
Activate and deactivate the indication of the Modbus information by
selecting or deselecting the selection box for the question "Display
additional Modbus information for each parameter?".
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Device communication
Web server user interface
5
9
6
10
46
7
8
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Legend for user interface
Main menu of the web server (first level)
•START (1)
5
6MenuAdjust device settings here.
7Info
System OK/
8
alarms
Alarm/
9
meas.
values
10i symbol
•DEVICE (2)
•ALARMS (3)
• PARAMETER ADDRESSES (4)
Refer to “Web server device menu (first level)” on page 45.
• Indication of device information regarding software, measurement technique, Ethernet and BS bus address.
• Indication of Modbus information for the individual parameters.
To be able to see this information, the selection box at PARAMETER
ADDRESSES (4) for the question "Display additional Modbus information
for each parameter?" must be activated.
Indication of the system status "System OK" (green button) and "Alarms"
(red button).
If there are pending alarms, click on the red button or go to menu point
"ALARMS" (3) to obtain further information.
Overview of alarm values and measured values.
Click on the "i" symbol on the right side to obtain further information
regarding measured values.
Device communicationDevice communication
47
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Device communicationDevice communication
CAUTION
2
2
2
3
2
2
2
222
3
2 2
2
3
CAUTION
11.5 BS bus
The BS bus is used to extend Bender measuring devices (e.g. ISOMETER®) with Bender sensor devices. It is an RS-485 interface with a specially developed protocol for Bender devices. On the BS bus, the transmission of alarm messages takes priority over the transmission
of all other messages. For further information, refer to the BS bus manual (document
number: D00278) at
www.bender.de/manuals
When using interface converters, a galvanic separation is required.
The compatibility of the BS bus and the BMS bus is restricted!
Master-slave principle
The BS bus works according to the master-slave principle. This means that the measuring
device operates as the MASTER, while all sensor devices operate as SLAVES. The master is
responsible for the communication that is necessary for the measuring function. The master also provides the required bus bias voltage for the operation of the BS bus. The measuring device on the BS bus is the master and has address 1. All sensor devices connected
to the BS bus require unique addresses.
Addresses and address ranges on the BS bus
Address 1 is assigned to the master. All sensor devices receive unique addresses starting
with address 2, assigned in consecutive order without gaps. In the event of a device failure, a maximum gap of 5 addresses is permissible.
.
Cable routing
The optimum cable routing for the BS bus is a double-terminated bus topology. The length
of the branch line is limited to 1 m. These branch lines do not have to be terminated.
Bus topology examples:
Termination
1Master
2SlaveTerminating resistor deactivated via switch on device (OFF)
3Slave
Terminating resistor activated via switch on device (ON) or external terminating resistor between terminals A and B
Terminating resistor activated via switch on device (ON) or external terminating resistor between terminals A and B
Only the first and last device in one line may be terminated. Therefore,
check all devices.
RS-485 specifications/cables
The RS-485 specification restricts the cable length to 1200 m
and requires a daisy chain
connection. The number of devices on the BS bus is only limited by the BS bus master.
Use twisted pair, shielded cables for bus cabling. For example, cable type J-Y(St)Y
n x 2 x 0.8 is suitable. The shield must have a single-ended connection to earth. The BS
bus must be terminated at both ends with terminating resistors (120 Ω, 0.25 W). The terminating resistors are connected in parallel to the terminals A and B. Some devices feature integrated terminating resistors and can be activated or deactivated via the "R"
button.
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12. Special functions for coupled IT systems
IT-System 1IT-System 2
PE
PE
Special functions for coupled IT systems
12.1 Particularities when monitoring coupled IT systems
When using ISOMETER®s in IT systems, make sure that only one active ISOMETER® is connected in each interconnected system. If several ISOMETER®s are to be connected to the
IT system, ensure that only one ISOMETER® is active in the IT system via system isolation
using the digital input or Ethernet (ISOnet function).
If IT systems are interconnected via coupling switches, make sure that ISOMETER®s not
currently used are disconnected from the IT system and deactivated.
IT systems coupled via diodes or capacitances may also influence the insulation monitoring process so that a central control of the different ISOMETER®s is required.
12.2 System isolation via digital input with two coupled systems
In order to deactivate the ISOMETER® via one of the digital inputs, the coupling switch must have a free contact.
49
Via the X1 connector, the ISOMETER® can be isolated from the IT system and the measuring functions can be deactivated. Therefore, the function of the digital input in use has to
be set to "Device inactive".
If the digital input used for this function is selected, the connectors L1/+, L2, L3/- are deactivated via internal system isolating switches, the measuring function stops and the following message appears on the display: "Device inactive. Device separated".
Stored fault messages are reset when the cause of the fault has been eliminated (Reset
function).
If the digital input is no longer selected, first the connection to the IT system is restored
and afterwards, an entirely new measuring cycle for the insulation monitoring starts.
This function can be used to disconnect the second ISOMETER® selectively in coupled IT
systems via the auxiliary contact of the coupling switch.
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12.3 System isolation via ISOnet
CAUTION
IT-System 1IT-System 2
PE
PE
IT-System 1IT-System 2
IT-System 3IT-System 4
PE
PE
PE
PE
Ethernet
SWITCH
Special functions for coupled IT systemsSpecial functions for coupled IT systems
The ISOnet function ensures via an Ethernet connection that only one ISOMETER® of the
interconnection is active when several ISOMETER®s are connected to an IT system.
For several ISOMETER®s to be able to measure in the same ISOnet interconnection, the settings for the BCOM system name and the BCOM subsystem have to be the same. Only the device address has to be different. If
this is not taken into account, the ISOnet function will not work.
If the ISOnet function is deactivated in an ISOMETER® in an ISOnet interconnection, it will measure continuously and will not forward measuring
commands to the next device in the interconnection.
In comparison to a solution with coupling switches and function input,
the response time will be extended because the measurement in the IT system is not carried out continuously.
The addresses of the ISOMETER®s in the ISOnet interconnection can be selected at will. The addresses do not have to be subsequent but they have
to differ from each other.
Maximum number of devices in an ISOnet interconnection: 20 devices
If in addition to the ISOnet interconnection the digital inputs are wired
and a device is deactivated via a digital input, the device will forward the
measuring authorisation until the signal at the digital input disappears.
Afterwards, it participates again in the measuring interconnection.
The IP address of the standard gateway must suit the subnet mask, so that
the ISOnet function can operate correctly.
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For the ISOnet function, the following settings are made in the menu: Alarm settings -> ISOnet -> ISOnet = BCOM. The ISOnet function of all ISOMETER®s existing in the system
has to be activated and the number of devices has to be determined.
Also the parameters of the Ethernet (DHCP on or IP address, subnet mask and default
gateway) and BCOM have to be set so that the devices in the ISOnet interconnection can
communicate with each other.
After starting the system, the devices initialise. The initialisation phase ends when the
configured number of devices has been reached. Then, the device starts with a measuring cycle at the lowest address. When an ISOMETER® has finished one measuring cycle,
the authorisation for insulation measurement is forwarded to the ISOMETER® with the
next higher address. While one ISOMETER® is measuring, all other ISOMETER®s are separated from the system via internal system isolation switches. By limiting to one subsystem
it is possible to have several ISOnet interconnections running in one system.
If a single device fails, the remaining ISOMETER®s continue the ISOnet operation. For the
failure of one device, two scenarios are possible:
• A device fails during the measuring procedure.
After timeout, another device takes over the measuring function.
In this way, all devices monitor each other.
• The device fails in the inactive mode.
When forwarding the measuring authorisation, the device is skipped and the next
device carries out the measurement.
If a device that has failed before returns, it is taken into the interconnection again and will
have its turn during the next run.
Special functions for coupled IT systemsSpecial functions for coupled IT systems
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13. Device profiles
Adjustment to different applications can be carried out very easily by selecting a device profile.
Nominal system
voltage
Power circuits
Control circuits
GeneratorAC 0…690 V50…60 Hz
High capacitance
Inverter > 10 Hz
Inverter < 10 Hz
AC 0…690 V/
DC 0…1000 V
AC 0…230 V/
DC 0…230 V
AC 0…690 V/
DC 0…1000 V
AC 0…690 V/
DC 0…1000 V
AC 0…690 V/
DC 0…1000 V
Mains
frequency
15…460 Hz
15…460 Hz
15…460 Hz
10…460 Hz
1…460 Hz
System
leakage
capacitance
0…150 µF
µF
0…150
0…5
µF
0…1000
0…20
0…20
µF
µF
µF
Measuring
voltage
±50 V
±10 V
±50 V
±50 V
±50 V
±50 V
Description
Main circuits without dynamic frequency changes.
The universal profile is suitable for all systems primarily with constant mains frequencies and
extraneous DC voltages. When using inverters and dynamic frequency control, select
Inverter > 10 Hz or Inverter < 10 Hz.
This profile is used to reduce the measurement voltage to ±10 V in control systems with
lower nominal voltages in order to reduce the impact by the ISOMETER® on sensitive switching elements.
This profile allows the realisation of a very fast measuring time, e.g. as required for generator
monitoring. Furthermore, this profile can be used to support fast fault location in an IT system. The generator profile is suitable for AC systems containing DC components.
For systems with high leakage capacitances, e.g. ship applications, the impact of leakage
capacitances on the measuring result can be significantly reduced by selecting this profile.
This profile is used for systems with dynamic frequency control by inverters in the range 10
to 460 Hz in order to optimise the measurement with respect to the measuring time and
quality.
For systems involving extremely low-frequency control in the range of up to 1…460 Hz and
very low and continuously changing extraneous DC voltages due to dynamic load conditions in an IT system, continuous insulation monitoring can be optimised using this profile.
Allows Bender Service to implement customer-specific measurement settings. If no settings
Customized––––
are made by Bender service, then the profile has the same parameters and technical specification as the Powercircuits profile.
Response times see “Diagrams” on page 53.
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14. Diagrams
Ce ≤ 150 µF
C
e
≤ 50 µF
C
e
≤ 20 µF
C
e
≤ 5 µF
C
e
≤ 1 µF
Response time as a function of the response value (Ran) and system leakage
capacitance (C
e
) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)
1
10
100
100001000100101
Response time [sec]
Response value R
an
[kΩ]
Ce ≤ 150 µF
C
e
≤ 50 µF
C
e
≤ 20 µF
C
e
≤ 5 µF
C
e
≤ 1 µF
Response time as a function of the response value (Ran) and system leakage
capacitance (C
e
) according to IEC 61557-8 (Un = AC 230 V, fn = 50 Hz)
1
10
100
100001000100101
Response time [sec]
Response value R
an
[kΩ]
14.1 Response time profile power circuits
14.2 Response time profile control circuits
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Diagrams
Ce ≤ 5 µF
C
e
≤ 1 µF
Response time as a function of the response value (Ran) and system leakage
capacitance (C
e
) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)
0,1
1
10
100001000100101
Response time [sec]
Response value R
an
[kΩ]
Ce ≤ 1000 µF
C
e
≤ 500 µF
C
e
≤ 150 µF
C
e
≤ 50 µF
C
e
≤ 20 µF
Ce ≤ 5 µF
Ce ≤ 1 µF
Response time as a function of the response value (Ran) and system leakage
capacitance (C
e
) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)
10
100
1000
100001000100101
Response time [sec]
Response value R
an
[kΩ]
14.3 Response time profile generator
14.4 Response time profile high capacitance
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Diagrams
Ce ≤ 20 µF
C
e
≤ 5 µF
C
e
≤ 1 µF
Response time as a function of the response value (Ran) and system leakage
capacitance (C
e
) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)
1
10
100
100001000100101
Response time [sec]
Response value R
an
[kΩ]
5065140190210220
1
10
100
101005001000500010000
Response time [sec]
Response value Ran[KΩ]
Response time as a function of the response value (Ran) and system leakage
capacitance (C
e
) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)
Ce 20 μF
Ce 5 μF
Ce 1μF
14.5 Response time profile inverter > 10 Hz
14.6 Response time profile inverter < 10 Hz
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Diagrams
0,1
1
10
100
1000
0,1110100
system leakage capacitance [µF]
response time [sec]
Typical response time for DC alarm for RF =100KΩ depending on
system prole and system leakage capacitance
Power circuit
Control circuit
High capacitance
Inverter >10Hz
Inverter <10Hz
Generator
C
e
0.1110100100010000100000
Relative uncertainty as a function of the response value (Ran) and system leakage
capacitance (C
e
) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)
Control circuit (IC5) .................................................................................................................................... (E, KE), (X1, ETH, X3, X4)
Rated voltage....................................................................................................................................................................................1000 V
Overvoltage category ............................................................................................................................................................................... III
IC1 / (IC2-5) .............................................................................................................................................................................1000 V
IC2 / (IC3-5) ...............................................................................................................................................................................250 V
IC3 / (IC4-5) ...............................................................................................................................................................................250 V
IC4 / IC5 ......................................................................................................................................................................................250 V
Pollution degree for accessible parts on the outside of the device housing (U
Pollution degree for accessible parts on the outside of the device housing (U
Protective separation (reinforced insulation) between:
IC1 / (IC2-5) ....................................................................................................................................Overvoltage category III, 1000 V
IC2 / (IC3-5) ......................................................................................................................................Overvoltage category III, 300 V
IC3 / (IC4-5) .......................................................................................................................................Overvoltage categoryIII, 300 V
IC4 / IC5 ............................................................................................................................................. Overvoltage category III, 300 V
Voltage test (routine test) according to IEC 61010-1:
IC2 / (IC3-5) ........................................................................................................................................................................ AC 2,2 kV
IC3 / (IC4-5) ........................................................................................................................................................................ AC 2,2 kV
IC4 / IC5 ............................................................................................................................................................................... AC 2,2 kV
Supply voltage
Supply via A1/+, A2/-:
Supply voltage range U
Tolerance of U
Maximum permissible input current of U
Frequency range of U
...............................................................................................................................................AC/DC 24…240 V
.................................................................................................................................... 650 mA
s
Tolerance of the frequency range of Us................................................................................................................................. -5…+15 %
Power consumption, DC................................................................................................................................................................ ≤ 12 W
Power consumption, typically 50/60 Hz .......................................................................................................................... ≤ 12 W/21 VA
Power consumption, typically 400 Hz ............................................................................................................................. ≤ 12 W/45 VA
Supply via X1:
Supply voltage U
Tolerance of U
............................................................................................................................................................................ DC 24 V
s
............................................................................................................................................................... DC -20…+25 %
s
IT system being monitored
Nominal system voltage range U
..................................................................................................................................... AC 0…690 V
n
............................................................................................................................................................................................. DC 0…1000 V
...................................................................................................................................................... AC/DC 0…600 V (for UL applications)
Tolerance of U
Frequency range of U
Max. AC voltage U
Relative uncertainty (acc. to IEC 61557-8) ............................................................................profile dependent, ±15 %, at least ±1 kΩ
Hysteresis ...................................................................................................................................................................... 25 %, at least 1 kΩ
Time response
Response time t
at RF = 0.5 x Ran (Ran = 10 kΩ) and Ce = 1 μF according to IEC 61557-8.................................................................
an
................................................................................................................................................. profile dependent, typ. 4 s (see diagrams)
Response time DC alarm at C
Start-up delay T
start-up
= 1 μF......................................................................................profile dependent, typ. 2 s (see diagram)
e
............................................................................................................................................................... 0…120 s
Measuring circuit
Measuring voltage U
Measuring current I
Internal resistance R
Permissible extraneous DC voltage U
Permissible system leakage capacitance C
.....................................................................................profile dependent, ±10 V, ±50 V (see profile overview)
......................................................................................................................................AC 25…690 V
...........................................................................................................................................................AC 25…690 V
n
n
...........................................................................................................................................................................................DC 25…1000 V
Voltage range measurement of U
Tolerance measurement of U
Frequency range measurement of C
Min. insulation resistance measurement of C
..................................................................................................................................... AC/DC > 10 V
n
.................................................................................................................................................±5 % ±5 V
..........................................depending on the profile and coupling mode, typ. > 10 kΩ
e
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Technical dataTechnical data
Display
Indication ....................................................................................................................... graphic display 127 x 127 pixels, 40 x 40 mm
Display range measured value .........................................................................................................................................0.1 kΩ…20 MΩ
LEDs
ON (operation LED) ............................................................................................................................................................................ green
Cable length X1 (unshielded cable)............................................................................................................................................... ≤ 10 m
Cable length X1 (shielded cable, shield connected to earth (PE) on one end, recommended: J-Y(St)Y min. 2x0,8)............. ≤ 100 m
Total max. supply output current via X1.+/X1.GND for each output.......................................................................................... max. 1 A
Total max. supply output current via A1/A2 on X1.............................................................................................................. max. 200 mA
Total max. supply output current via A1/A2 on X1 between 16,8 V and 40 V .........................................................................................
............................................................................................................................................................. I
............................................................................................................................................ (negative values are not allowed for I
= 10mA + 7mA/V * Us
LmaxX1
LmaxX1
Digital Inputs (I1, I2, I3)
Number ...................................................................................................................................................................................................... 3
Operating mode, adjustable................................................................................................................................... active high, active low
Voltage...........................................................................................................................................Low DC -3…5 V, High DC 11…32 V
Number ...................................................................................................................................................................................................... 2
........................................................................ device fault, common alarm, measurement complete, device inactive, DC offset alarm
Voltage............................................................................................................................. passive DC 0…32 V, active DC 0/19.2…32 V
Analogue Output (M+)
Number ...................................................................................................................................................................................................... 1
Operating mode................................................................................................................................ linear, midscale point 28 kΩ/120 kΩ
Functions ...........................................................................................................................................................insulation value, DC offset
Current ........................................................................................0…20 mA (< 600 Ω), 4…20 mA (< 600 Ω), 0…400 μA (< 4 kΩ)
Voltage........................................................................................................................................ 0…10 V (> 1 kΩ), 2…10 V (> 1 kΩ)
Interface/protocol .................................................................................................................................... web server/Modbus TCP/BCOM
Data rate........................................................................................................................................................... 10/100 Mbit/s, autodetect
Cable length .................................................................................................................................................................................≤ 100 m
IP address .........................................................................................................................................................DHCP/manual 192.168.0.5
Function ..............................................................................................................................................................communication interface
ISOnet:
Number ISOnet devices ...................................................................................................................................................................... ≤ 20
Data rate................................................................................................................................................................................... 9.6 kBaud/s
Cable length ...............................................................................................................................................................................≤ 1200 m
Cable: twisted pair, one end of shield connected to PE................................................................... recommended: J-Y(St)Y min. 2x0.8
Terminating resistor at the beginning and at the end of the transmission path..............................120 Ω, can be connected internally
Device address, BS bus .................................................................................................................................................................... 1…90
Switching elements
Number of switching elements.............................................................................................................................. 2 changeover contacts
......................................................................... device fault, common alarm, measurement complete, device inactive, DC offset alarm
Electrical endurance under rated operating conditions, number of cycles.................................................................................... 10.000
Rated operational voltage .............................................................................................................. 230 V / 230 V / 24 V / 110 V / 220 V
Rated operational current ........................................................................................................................... 5 A / 3 A / 1 A / 0.2 A / 0.1 A
Rated insulation voltage ≤ 2000 m NN ........................................................................................................................................... 250 V
Rated insulation voltage ≤ 3000 m NN ........................................................................................................................................... 160 V
Minimum contact rating ...................................................................................................................................... 1 mA at AC/DC ≥ 10 V
Operating temperature........................................................................................................................................................ -25…+55 °C
Transport.............................................................................................................................................................................. -40…+85 °C
Long-term storage .............................................................................................................................................................. -40…+70 °C
Classification of climatic conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3).................................................................................... 3K5 (except condensation and formation of ice)
Transport (IEC 60721-3-2) ...................................................................................................................................... ............................ 2K3
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3)...........................................................................................................................................................3M4
Transport (IEC 60721-3-2)...................................................................................................................................................................2M2
Area of application ............................................................................................................................................................... ≤ 3000 m NN
Connection
Connection type................................................................................................... pluggable screw-type terminal or push-wire terminal
Screw-type terminals:
Nominal current............................................................................................................................................................................... ≤ 10 A
Stripping length................................................................................................................................................................................. 7 mm
Multiple conductor, flexible with ferrule without plastic sleeve .......................................................................................0.25…1 mm²
Multiple conductor, flexible with TWIN ferrule with plastic sleeve..................................................................................0.5…1.5 mm²
Push-wire terminals:
Nominal current............................................................................................................................................................................... ≤ 10 A
Stripping length............................................................................................................................................................................... 10 mm
flexible with ferrules, with/without plastic sleeve............................................................................
onductor, flexible with TWIN ferrule with plastic sleeve..................................................................................0.5…1.5 mm²
c
Multiple
.............................. 0.25…2.5 mm²
Push-wire terminals X1:
Nominal current................................................................................................................................................................................. ≤ 8 A
Stripping length............................................................................................................................................................................... 10 mm
flexible with ferrule without plastic sleeve..................................................................................................................... 0.25…1.5 mm²
flexible with TWIN ferrule with plastic sleeve .............................................................................................................. 0.25…0.75 mm²
Mounting (0°)..........................................................................................display oriented, cooling slots must be ventilated vertically
6)
Degree of protection internal components .........................................................................................................................................IP40
Degree of protection terminals ............................................................................................................................................................IP20
DIN rail mounting acc. to............................................................................................................................................................ IEC 60715
Screw fixing...................................................................................................................................................... 3 x M4 with mounting clip
Enclosure material ............................................................................................................................................................... polycarbonate
Flammability class .................................................................................................................................................................................V-0
Dimensions (W x H x D)............................................................................................................................................... 108 x 93 x 110 mm
Weight ........................................................................................................................................................................................... < 390 g
Option "W" data different from the standard version
Rated operational current of switching elements .....................................................................................max. 3 A (for UL applications)
Ambient temperatures:
Operating temperature........................................................................................................................................................-40…+70 °C
........................................................................................................................................................... -40…+65 °C (for UL applications)
Transport .............................................................................................................................................................................. -40…+85 °C
Long-term storage...............................................................................................................................................................-40…+70 °C
Classification of climatic conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) ................................................................................. 3K5 (condensation and formation of ice possible)
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) ........................................................................................................................................................ 3M7
1)
At a frequency > 200 Hz, the connection of X1 must be insulated. Only permanently installed devices which at least have over-
voltage category CAT2 (300V) may be connected.
2)
Indication limited outside the temperature range -25…+55 °C.
3)
Us [Volt] = supply voltage ISOMETER®
4)
For Un ≥50V only.
5)
This is a class A product. In a domestic environment, this product may cause radio interference. In this case, the user may be re-
quired to take corrective actions.
6) Recommendation: Devices mounted at 0 ° (display-oriented, cooling slots must be ventilated vertically).
For devices mounted at an angle of 45°, the max. working temperature is reduced by 10 °C.
For devices mounted at an angle of 90°, the max. working temperature is reduced by 20 °C.
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Technical dataTechnical data
17.2 Option "W"
Devices with the suffix "W“ feature increased shock and vibration resistance.
The electronics is covered with a special varnish to provide increased protection against
mechanical stress and moisture.
Combination of ISOMETER® sensor variant with FP200:
The requirements of Option "W" will only be fulfilled when the ISOMETER®
sensor variant is mounted on DIN rail and connected to the FP200 via the
patch cable.
Refer also to the quick-start guide FP200 (Document number D00169).
17.3 Standards and certifications
The ISOMETER® has been developed in compliance with the following standards:
• DIN EN 61557-8 (VDE 0413-8):2015-12
• IEC 61557-8:2014-12
• IEC 61557-8:2014/COR1:2016
• DIN EN 61557-8 Ber 1 (VDE 0413-8 Ber 1):2016-12
17.4 Ordering details
Accessories
DescriptionArt. No.
iso685 Mechanical accessories comprising:
Terminal cover and 2 mounting clips*
iso685 Plug kit, screw terminals*B91067901
iso685 plug kit, with push-wire terminals B91067902
Transparent cover 144x72 (IP65) for FP200 **B98060005
B91067903
* included in the scope of delivery
** If the “transparent front cover 144x72 (IP65)” is used, the cutout in the control cabinet
must be increased in height from 66 mm to 68 mm (+ 0.7 / -0 mm).
Suitable system components
DescriptionTypeArt. No.
Suitable measuring instruments
**
SKMP
: 28 kΩ,120 kΩ
Current values: 0…400 µA, 0…20 mA
(additonal information here)
7204-1421B986763
9604-1421B986764
9620-1421B986841
Typ e
iso685-D-B
iso685W-D-B*
Combination
iso685-S-B + FP200
Combination
iso685W-S-B + FP200W*
Supply voltage U
AC 24…240 V; 50…400 Hz
DC 24…240 V
AC 24…240 V; 50…400 Hz
DC 24…240 V
AC 24…240 V; 50…400 Hz
DC 24…240 V
AC 24…240 V; 50…400 Hz
DC 24…240 V
S
Art. No.
B91067020
B91067020W
B91067220
B91067220W
* Option "W": Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C
63
Display for front plate mounting
iso685-S
(only in combination with FP200)
iso685W-S*
(only in combination with FP200)
FP200B91067904
FP200WB91067904W
Supply voltage:
AC 24…240 V; 50…400 Hz
DC 24…240 V
Supply voltage:
AC 24…240 V; 50…400 Hz
DC 24…240 V
B91067110
B91067110W
* Option "W": Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C
**
SKMP = midscale point
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18. Glossary
• BCOMProtocol for communication between Bender devices via an IP-based network.
• BS busThe Bender sensor bus is an interface which enables Bender devices to communicate with each other (RS-485 interface).
• DHCPDynamic Host Configuration Protocol. It is used to assign the network configuration to Clients via a server.
•ISOnet
• Modbus TCPModbus is an international widely spread protocol for data transfer.
• System (BCOM)
• Subsystem (BCOM)
• Web serverA web server presents the device functions graphically. The web server can be used for reading out measured values and for parameter setting.
Only one ISOMETER® may exist in an isolated system. If several networks monitored by an ISOMETER® are coupled, this function ensures via an
Ethernet connection that only one ISOMETER® is actively measuring.
The system is the entire installation that is visible for the customer and defined by the customer. The BCOM communication takes place within this
system. Naturally, different systems can exist independently in one network.
The subsystem structures parts of the system as units defined by the customer, e.g. all PQ devices. A typical subsystem are also "non BCOM-capable" devices that are hidden behind a proxy.