Index ................................................................................... 56
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1. Safety instructions
DANGER
WARNING
CAUTION
1.1Explanation of symbols and notes
This manual is intended for qualified personnel working in electrical
engineering and electronics!
To make it easier for you to understand and revisit certain sections of text and
instructions in this manual, we have used symbols to identify important instructions and information.
DANGER: This signal word indicates that there is a high risk of danger that will result in electrocution or serious injury if not avoided.
WARNING: This signal word indicates a medium risk of danger that
can lead to death or serious injury if not avoided.
CAUTION: This signal word indicates a low level risk that can result
in minor or moderate injury or damage to property if not avoided.
1.2Intended use
The ISOMETER® iso685-D-B/-S-B 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. The nominal voltage range U
devices.
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.
Any other use than that described in this manual is regarded as improper. The
Bender companies shall not be liable for any losses or damage resulting from improper use. Intended use implies:
The observation of all information in the operating manual.
Compliance with test intervals.
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.
can be extended via coupling
n
NOTE: This symbol denotes information intended to assist the user
in making optimum use of the product.
7
As a basic principle, our "General Conditions of Sale and Delivery" shall apply. At
the latest, these shall be available to the operator when the contract is concluded.
iso685-D-B_D00177_01_M_XXEN/01.2016
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1. Safety instructions
1.3Warranty and liability
Warranty and liability claims in the event of injury to persons or damage to property are excluded if they can be attributed to one or more of the following causes:
• Use of the ISOMETER® other than for its intended purpose
• Incorrect assembly or installation, commissioning, operation and maintenance
of the ISOMETER®
• Non-observance of instructions in this operating manual regarding transport,
commissioning, operation and maintenance of the ISOMETER®
• Unauthorised changes to the ISOMETER® made by parties other than the
manufacturer
• Non-observance of technical data. Repairs carried out incorrectly and the use of
replacement parts or accessories not approved by the manufacturer
• Case of disasters and force majeure
• Assembly and installation with device combinations not recommended by the
manufacturer
This operating manual, especially the safety instructions, must be observed above
all by personnel who work on the ISOMETER®. In addition, the rules and regulations that apply for accident prevention at the place of use must be observed.
1.3.1Personnel
Only appropriately qualified personnel may work with the ISOMETER®. Personnel
who are familiar with the assembly, commissioning and operation of the product
and have undergone appropriate training are considered qualified. Personnel
must have read this manual and understood all instructions relating to safety.
1.3.2About the operating manual
This manual has been compiled with great care. It may nevertheless contain errors
and mistakes. Bender cannot accept any liability for injury to persons or damage
to property resulting from errors or mistakes in this manual.
1.3.3Hazards when handling the ISOMETER® iso685-D-B/-S-B
The ISOMETER® are built in accordance with state-of-the-art technology and the
recognised safety regulations. However, the use of such devices may introduce
risks to the life and limb of the user or third parties and/or result in damage to the
ISOMETER® or other property.
Only use the ISOMETER®:
•As intended
• In perfect working order
Immediately rectify any faults that may endanger safety. Do not make any unauthorised changes and only purchase spare parts and optional accessories recommended by the manufacturer of the devices. Failure to observe this requirement
can result in fire, electric shock and injury.
Unauthorised persons must not have access to or contact with the ISOMETER®.
Reference signs must always be clearly legible. Replace damaged or illegible signs
immediately.
1.3.4Inspection, transport and storage
Inspect the packaging and equipment packaging for damage, and compare the
contents of the package with the delivery documents. In the event of damage in
transit, please inform the Bender company immediately.
The devices must only be stored in areas where it is protected from dust, damp
and spray or dripping water, and in which the specified storage temperatures can
be assured.
1.3.5Note
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 proper connection
of the device, a functional test has to be carried out before starting the system.
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®.
8
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2. Function
*
2.1Features
• ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters
and for IT DC systems (IT = unearthed systems).
• The operating range of the nominal voltage U
devices.
• 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 and 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 via the Internet or Intranet
(Webserver / Option: COMTRAXX® Gateway).
• Worldwide remote diagnosis via Internet.
• ISOnet: Internal isolation of the ISOMETER®
(via control signal or terminals I1, I2, I3 of the plug X1) from the IT system to be
monitored (e.g. when coupling several ISOMETER®s).
• Modbus TCP, web server and BCOM.
can be extended via coupling
n
2.2Product description
The ISOMETER® iso685-D-B/-S-B is an insulation monitoring device for IT systems
according to IEC 61557-8. It is universally applicable in AC, 3(N)AC, AC/DC and DC
systems. AC systems may include extensive DC-supplied loads (such as rectifiers,
inverters, variable-speed drives).
2.3Special characteristics ISOMETER® iso685-S-B with front
panel
The ISOMETER® iso685-D-B is a device of the iso685 device family with integrated
display. This manual applies in full to the ISOMETER® iso685-D-B.
Das ISOMETER® iso685-S-B is the sensor variant of the ISOMETER® iso685-D-B. The
only difference is that it does not feature a display. The ISOMETER® iso685-S-B must
be used in combination with a front panel because the device is operated via the
front panel. The operation of the front panel is similar to the operation of the ISOMETER® iso685-D-B, which is described in this manual.
The ISOMETER® iso685-D-B, which is similar to the combination of ISOMETER®
iso685-S-B and front panel (e.g. FP200), is described below.
2.4Functional description
The insulation monitoring device ISOMETER® iso685-D-B 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 microcontrolled measuring circuit. The measuring time is dependent on the selected
measurement profiles, the system leakage capacitance, the insulation resistance
and possible system-related disturbances.
9
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2. Function
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
terminals
To extend the nominal voltage range, different coupling devices are available as
accessories which can be selected from a menu where the required adjustments
can also be made. The insulation monitoring device iso685 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.
L1/+, L2, L3/-.
required use of the appropriate
The insulation monitoring device iso685-D-B 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.
2.5Interfaces
• Communication protocol Modbus/TCP
• BCOM for communication of Bender devices via Ethernet
• Integrated web server for reading out measured values and for parameter setting
2.6Self-test
After switching on the supply voltage, the ISOMETER, by means of the self-test
functions, 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.
A manual self test can also be activated by means of the test button to check the
relay function (depending on the configuration).
The progress of the manual self test is shown on the LCD 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 (i.e. measurement mode) and the actual measured value will be displayed after the measuring
time has expired.
The display shows the initial measurement message until the first valid value is
measured.
If an error is detected during a self-test, the corresponding device LEDs light (see
“Alarm messages” on page 50). In addition, the appropriate message is displayed
on the LCD and an output, if configured, provides a corresponding signal.
10
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3. Device overview
3.1Dimensions
108 mm
110 mm
mm 39
11
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ISOMETER® iso685-D-B
ISOMETER® iso685-S-B with front panel FP200 connected via RJ45 cable
3. Device overview
3.2Device variants
iso685-D-B:
iso685-S-B:Device version iso685-S-B neither features a display nor operating controls. It can only be used in combination with FP200 and is indirectly operated via
Option "W":Device variants with option W are available in case of extreme climatic and mechanical conditions.
The device version iso685-D-B features a high-resolution graphical LC display and control elements for direct operating of the device functions.
this front panel.
12
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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
Front
Reset
Data
LED display: SERVICE, ALARM 1, ALARM 2
Menu
ESC
Tes t
Info
OK
X3
Optional expansion module for Bender devices
LED display: ON/OFF
Display
ETH
X1Digital interface
ETHEthernet interface
RSelectable resistance R
11 12 14Connector for alarm relay 1
21 22 24Connector for alarm relay 2
Bottom
3. Device overview
3.3Connections and panel
13
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4. Mounting
4.1Screw mounting
15. Fix the three mounting clips delivered with the device (two of them packed
separately) manually or using a tool, as illustrated below.
16. Drill the mounting holes for the M4 thread according to the dimensioned
drilling template.
17. Fix the ISOMETER® iso685-D-B with three M4 screws.
108 mm
72 mm
4.2DIN 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® iso685-D-B onto the DIN rail until it snaps into place.
14
100 mm
54 mm
107,3 m m
iso685-D-B_D00177_01_M_XXEN/01.2016
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5. Connection
DANGER
DANGER
WARNING
CAUTION
CAUTION
CAUTION
CAUTION
5.1Connection conditions
Consider the minimum distance to adjacent devices:
lateral 0 mm, top 20 mm, bottom 20 mm.
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 that the terminal covers
are properly mounted and clicked in before you use the device.
Risk of electric shock!
High voltage is applied to the terminals which can be lethal if directly contacted. If the device is connected via the terminals L1/+,
L2, L3/- to an IT system that is live,‐for operational reasons, terminals KE and E must not be disconnected from th protective earth
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.
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 systems” from page 38
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 run any
load current through 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.
Prevent measurement errors!
When the AC system being monitored contains galvanically coupled DC circuits, observe that: an insulation fault can only be detected correctly when the rectifier valves carry a minimum current
of > 10 mA.
For UL applications:
Only use 60/70°C copper lines!
UL and CSA application require the supply voltage to be protected
via 5-A fuses.
15
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WARNING
L1
L2
L3
N
PE
U
S
6A
U
n
WARNING
L1
L2
PE
U
n
U
S
6A
5. Connection5. Connection
5.2Connection to a 3(N)AC system/system type 3AC
Risk of injury, fire and damage to property due to a shortcircuit!
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-circuit-proof and earth-fault-proof wiring.
5.3Connection to an AC system/system type AC
Risk of injury, fire and damage to property due to a shortcircuit!
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-circuit-proof and earth-fault-proof wiring.
Position the terminal cover and click it into place.
16
Position the terminal cover and click it into place.
iso685-D-B_D00177_01_M_XXEN/01.2016
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WARNING
L+
L-
PE
U
S
6A
**
* F 6A for
syste ms
> 690 V
overvoltage category III
U
n
I1
I2
I3
A
B
M+
Q2
Q1
+
Input 1
Input 2
Input 3
RS-485 A
RS-485 B
Ground
Analogue output
Output 2
Output 1
+ 24 V
Electrical overload protection
Auto shut-off in the event of a short
circuit and transients (resettable)
5. Connection5. Connection
5.4Connection to a DC system/system type DC
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-circuit-proof and earth-fault-proof wiring.
5.5Connection to the X1 interface
Position the terminal cover and click it into place.
17
Position the terminal cover and click it into place.
iso685-D-B_D00177_01_M_XXEN/01.2016
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CAUTION
U
S
6A
CAUTION
CAUTION
+
U
s
5. Connection
5.6Connection to the supply voltage
5.6.1Connection to A1/+, A2/-
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/+, A2/- terminals.
Do not connect the device simultaneously via X1, and A1/+, A2/- to
different supply voltages.
5.6.2Connection to X1
External Power supply for powering ISOMETER®s 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/+, A2/- terminals. Do
not connect the device simultaneously via X1, and A1/+, A2/- to different supply voltages.
Danger of damage to property due to incorrect nominal
voltage!
When the device is powered via the X1 interface, the nominal voltage must be 24 V otherwise the unit may be damaged. kann. Only
connect to a nominal voltage of 24 V to the X1 interface.
1
18
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11
12
14
Relay 1
Common contact
Normally open (n.o)
Normally closed (n.c)
5. Connection
5.7Connection to the Ethernet interface
Position the terminal cover and click it into place.
5.8Connection to the relay 1 interface (11 12 14)
Position the terminal cover and click it into place.
19
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21
22
24
Relay 2
Common contact
Normally closed (n.c)
Normally open (n.o)
Messages
Reset
Show
data value
Up /
Increase value
Back /
Select parameter
Down /
Decrease value
Show
information
Perform
self test
Device menu
start
OK /
Conrm
Forward /
Select parameter
Cancel /
Previous
5. Connection
6. Commissioning
5.9Connection to the relay-2 interface (21 22 24)
Position the terminal cover and click it into place
20
6.1Device 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 are assigned to
the buttons. The individual functions are:
6.2General initial commissioning process
1. Check that the ISOMETER® iso685-D-B has been properly connected to the
system to be monitored.
2. Connect the supply voltage to the ISOMETER® iso685-D-B. Adjust the device
using the commissioning wizard. Then 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.
3. Check the ISOMETER® iso685-D-B in the system being monitored, e.g. using a
suitable resistance against earth.
Observe the device status!
The device is in the alarm state until initial commissioning has
been complete.
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Language5.1
o Deutsch
• English
o Espanõl
o Français
o Norsk
Date 5.2.4
14.01.2014
min. 1
max. 31
Commissioning 5.6
Please set the
current date
and time.
2/9
System type 1.3
• DC
o AC
o 3AC
Commissioning 5.6
Please choose the
type of system
that best suits
your installation.
5/9
6. Commissioning
After setting the response value R
for Alarm 2, the device starts a self-test,
an2
makes the first measurement and outputs the measured insulation resistance values of the IT system being monitored, then commissioning is completed.
6.3Initial 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.
6.3.1Set language
The language selected here will be used in the menu and for device messages.
6.3.2Set 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.
6.3.3Set 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.
21
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Profile 1.2
• 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.
7/9
Alarm 1 1.1.1
40 kΩ
min. 1kΩ
max. 10MΩ
Commissioning 5.6
Please set
response value
for R(an1) for
Alarm1.
8/9
Alarm 2 1.1.2
10 kΩ
min. 1kΩ
max. 10MΩ
Commissioning 5.6
Please set
response value
for R(an2) for
Alarm2.
9/9
6. Commissioning
6.3.4Set profile
In order to adapt the insulation monitoring device optimally to the system to be
monitored, you can select a profile here that suits your system. For an overview of
the profiles refer to “Profile overview” on page 41. The profile "power circuits" is
suitable for most IT systems.
6.3.5Set response value R
You can set the prewarning response value here.
A value of 100 Ω/V is recommended for prewarning.
for Alarm 1
an1
6.3.6Set 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.
6.4Recommissioning
If the device has already been put into operation before, the self-test will be started shortly after the supply voltage has been connected. You can 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.
22
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7. Display
IT System
OK
230 kΩ
R(an) 40kΩ/10kΩ
OK
230 kΩ
7 kΩ
Insulation fault
7 kΩ
1/4
7.1Standarddisplay
In normal operation the ISOMETER® iso685-D-B displays the message OK and below the currently measured insulation resistance.
The signal quality of the measurement suits the selected profile.
The signal quality of the measurement does not suit the selected profile. Select a suitable 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, the set limit values are R
=40 kΩ and R
an1
an2
=10 kΩ.
7.2Fault 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 still is 7 kΩ. Since the values
=40 kΩ and R
R
an1
ALARM 2 have been triggered.
If several fault messages occur, you can navigate through the faults using the
and button.
=10 kΩ both are below the set response value, ALARM 1 and
an2
23
If the value falls below R
tem, in addition 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 sys-
an1
iso685-D-B_D00177_01_M_XXEN/01.2016
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Insulation fault
28.03.14 17:0 2
28.03.14 17:18
2/4
7 kΩ7 kΩ
7. Display
7.3Fault display (inactive)
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.
IT System
3x
230 kΩ
230 kΩ
1/4
If several fault messages occur, you can navigate through the faults using the
and button. In addition to the type of fault and the associated alarm value,
you can see when the fault has occurred and how long it has been active.
24
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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
Change scale
Change parameter
value
Current time scale
Leave view
Modify scale
7. Display
7.4Acknowledge fault message
In order to acknowledge the fault message and return to the standard display of
the iso685-D-B ISOMETER®, 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®
iso685-D-B then returns to the standard display.
7.5Data-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.
25
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 26
History 4.1
Insulation fault
11kΩ
28.03.14 17:0 2
28.03.14 17:18
8/8
Next message
Previous message
Number of selected error/
Total number of
errror messages
Fault description
Alarm value
Fault occured
Fault disappeared
Leave view
7. Display
7.6History 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 R
Data - Insulation.
will also be reset under Menu / Data Measured values /
min
26
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 27
8. Menu
1. Alarm setting s
1. Insulation alarm
1. A la r m 1
2. Alar m2
3. Me mo ry
2. Profile
3. System type
4. ISONet
5. De vice
6. T(sta rt)
7. Coupling monitoring
8. Inp uts
1. D ig ita l 1
1. M o d e
2. t(on)
3. t(off)
4. Function
2. Digital 2
1. M o d e
2. t(on)
3. t(off)
4. Function
3. Digital 3
1. M o d e
2. t(on)
3. t(off)
4. Function
9. Out put s
1. R el a y 1
1. TEST
2. Relay mo de
3. Function 1
4. Function 2
5. Function 3
2. Relay 2
1. TEST
2. Relay mo de
3. Function 1
4. Function 2
5. Function 3
3. Digital 1
1. TEST
2. Relay mo de
3. Function 1
4. Function 2
5. Function 3
4. Digital 2
1. T E S T
2. Relay mo de
3. Function 1
4. Function 2
5. Function 3
1. ISONet
2. Number of Devices
5. Buzzer
1. TEST
2. Fun ction 1
3. Fun ction 2
4. Fun ction 3
6. An alog
1. M o d e
2. Scale centre
3. TEST
4. Fun ction
2.
Data meas. values
3. Control
1. TEST
2. RESET
3. Sta rt initial
measurement
4. Histo ry
1. H isto r y
2. Delete
5. Device settings
1. Language
2. Cloc k
1. Ti me
2. For mat
3. Summertime
4. Dat e
5. For mat
6. NTP
7. NTP Server
8. UTC
3. Inte rface
1. Write access
2. Ethe rn et
1. D H C P
2. IP
3. SN
4. Std. GW
5. DNS-Server
6. Domain
4. Displa y
1. Brightness
5. Pas sword
1. P a ss w o r d
2. Stat us
6. Co mmis sionin g
7. S e r v i c e
1. B M S
1. BMS Address
2. BCOM
1. Systemname
2. Subsystem
3. Device Adress
4. Timeout
5. TTL for Subscript.
2. Modbus/TCP
1. Port 502
6. Backup
6. Info
27
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 28
8. Menu
1.0Alarm 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 iso685-D-B ISOMETER®
user profile. A device password is required for entering the settings. You can adjust the following functions:
1.1Insulation alarm
In the "Insulation alarm" menu you can set the iso685-D-B ISOMETER® limit values
for Alarm 1 and Alarm 2:
1.1.1 Alarm 1
For ALARM 1 an insulation resistance of 1 kΩ…10 MΩ can be set irrespective of
ALARM 2.
1.1.2 Alarm 2
For ALARM 2 an insulation resistance of 1 kΩ…10 MΩ can be set irrespective of
ALARM 1.
1.1.3 Fault memory
Automatic reset of inactive faults at the outputs of 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.
1.2Profile
Adapt the applicabilty of the ISOMETER® iso685-D-B to your system profile. For a
description of the profiles refer to “Profile overview” on page 41.
You may select:
•Power circuits
•Control circuits
Suitable for most IT systems.
Not recommended for voltages >230 V.
•Generator
•High capacitance
•Inverter > 10 Hz
•Inverter <10 Hz
1.3System type
Adapt the ISOMETER® iso685-D-B to the IT system to be monitored. You may select:
•DC
•AC
•3AC
1.4ISONet
Make the settings to use the ISOnet function.
28
1.4.1 ISONet
Activate or deactivate the ISOnet function
•off
•BCOM
Deactivate ISOnet
Activate ISOnet
1.4.2 Number of devices
Configure the number of devices (2…5) in a subsystem.
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 29
8. Menu
1.5Device
Set the insulation resistance measurement function of the ISOMETER® iso685-D-B
to active or inactive:
•Active
•Inactive
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
1.6T(Start)
The ISOMETER® iso685-D-B can be operated with a startup delay of
0…120 seconds. The startup is delayed until the first measurement takes place.
1.7Coupling monitoring
The ISOMETER® iso685-D-B continuously monitors the coupling of energised systems. The coupling of deenergised systems is monitored at 8-hour intervals. This
monitoring function can be activated or deactivated.
•on
•off
Coupling monitoring is activated.
Coupling monitoring is deactivated.
1.8Inputs
The ISOMETER® iso685-D-B provides a total of three digital inputs.
1.8.1 Digital 1
The following parameters can be set for the digital input:
1.8.1.1 Mode
The operating mode for the digital input can be set to the following values. For a
description of the operating modes refer to “Digital input mode” on page 42. You
may select:
•active high
•active low
1.8.1.2 t(on)
The response time t(on) after a switch-off signal can be set between 100 and 300
milliseconds. For a description of the operating modes refer to “Digital input mo-
de” on page 42.
1.8.1.3 t(off)
The response time t(off) after a switch-off signal can be set between 100 milliseconds and 300 seconds. For a description of the operating modes refer to
“Digital input mode” on page 42.
1.8.1.4 Function
The parameters for the digital input functions of the ISOMETER® iso685-D 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
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 will be started
Device inactive
1.8.2 Digital 2
See Digital 1 under 1.8.1
1.8.3 Digital 3
See Digital 1 under 1.8.1
29
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8. Menu
1.9Outputs
The ISOMETER® iso685-D-B provides a total of six outputs:
The following parameters can be set for the outputs:
1.9.1 Relay 1
The following parameters can be set for each relay:
1.9.1.1 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 relay's switching function
The manual test does not check the relay's switching function
1.9.1.2 Relay mode
The relay mode can be adapted to the application:
•N/C
•N/O
Normally closed- N/C operation contacts11-12-14 / 21-2224 (The alarm relay is energised in normal operation).
Normally open - N/O operation contacts 11-12-14 / 21-22-24
(The alarm relay is de-energised in normal operation).
1.9.1.3 Function 1
Select the appropriate setting for function 1. The following parameters can be set.
For a detailed functional description refer to “Description of the output functions”
on page 43:
•off
•Iso. alarm 1
•Iso. alarm 2
•Connection fault
•DC- alarm
•DC+ alarm
•Symmetrical alarm
•Device error
•Common alarm
•Measurement complete
•Device inactive
1.9.1.4 Function 2
See function 1 under 1.9.1.3
30
1.9.1.5 Function 3
See function 1 under 1.9.1.3
1.9.2 Relay 2
See relay 1 under 1.9.1
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 31
8. Menu
1.9.3 Digital 1
The following parameters can be set for each of the digital outputs:
1.9.3.1 TEST
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.
1.9.3.2 Mode
The operating mode for the digital output can be set to the following values. For
a detailed functional description refer to “Digital output modes” on page 43:
•Active
•Passive
1.9.3.3 Function 1
See function 1 under 1.9.1.3
1.9.3.4 Function 2
See function 1 under 1.9.1.3
1.9.4 Digital 2
See Digital 1 under 1.9.3
1.9.5.1 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.
1.9.5.2 Function 1
See function 1 under 1.9.1.3
1.9.5.3 Function 2
See function 1 under 1.9.1.3
1.9.5.4 Function 3
See function 1 under 1.9.1.3
1.9.6 Analog
The following parameters can be set for the analogue output:
1.9.6.1 Mode
The operating mode for the analogue output can be set to the values listed below.
For a detailed functional description refer to “Description of the analogue output”
on page 44:
•0-20 mA
1.9.5 Buzzer
The following parameters can be set for the buzzer:
31
•4-20 mA
•0-400 μA
•0-10 V
•2-10 V
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 32
8. Menu
1.9.6.2 Scale centre
Select the appropriate scale centre. The following parameters can be set. For a detailed description refer to “Description of the analogue output” on page 44.
•Linear
Ω
•28 k
•120 kΩ
1.9.6.3 TEST
The functional test of the analogue output can be activated or deactivated. In this
way, the analogue output is adjusted once for the entire range. This only applies
to the manual test and not to the cyclic device self-test:
•on
•off
The manual test checks the analogue output
function.
The manual test does not check the analogue
output function.
1.9.6.4 Function
Select the appropriate setting for function 3. The following parameters can be set.
For a detailed description refer to “Function” on page 45.
•Insulation value
•DC shift
2.0Data measured values
The ISOMETER® iso685-D-B stores certain measured values for a specific period of
time. You can view these data in the "Data meas. value" menu. Navigate through
the different views using the and buttons:
•Data - isoGraph
•Data - Insulation
•Data - IT system
•Data - IT system
Displays the insulation resistance and chronological sequence.
tion” on page 36
Displays the actual insulation resistance, the
minimum insulation resistance measured and
the system leakage capacitance.
Displays the system phase-to-phase voltages
and the system frequency.
Displays the system phase-to-earth voltages.
See“Device communica-
.
3.0Control
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 will be started
32
4.0History
In the history menu, the faults detected by the ISOMETER® iso685-D-B are displayed. For a detailed functional description refer to “History memory” on
page 26:
•History
•Delete
Overview of faults that have occurred.
Reset the history memory.
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 33
8. Menu
5.0Device settings
The device settings menu allows you to configure the basic settings for the ISOMETER® iso685-D-B:
5.1Language
Choose the language to be displayed by the ISOMETER® iso685-D-B. For example,
you can set the languages:
•Deutsch
•English
•...
5.2Clock
In the clock menu you can set the display format of time and date for the ISOMETER®:
5.2.1 Time
Based on the selected time format you can set the current time to display 24-hour
or 12-hour notation (am/pm).
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
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 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 Uhr CEST by setting the clock forward 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.
5.2.4 Date
Based on the selected date format you can set the current date.
5.2.5 Format (date)
Select the appropriate date format you want to be displayed:
•dd.mm.yy
day, month, year
33
•mm-dd-yy
month, day, year
5.2.6 NTP
Select if you would like to synchronise the current time via NTP:
•on
•off
5.2.7 NTP server
Configure the NTP server.
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 34
8. Menu
5.2.8 UTC
Configure the time according to UTC (Coordinated Universal Time) For Germany,
set +1 for winter time (MEZ) and +2 for summer time (MESZ).
5.3Interface
Set the parameters for the connection of other device to the ISOMETER® in the interface menu:
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 works always, regardless of this setting.
•Allow
•Refuse
5.3.2 Ethernet
Set the parameters for communication with other devices via the Ethernet interface.
5.3.2.1 DHCP
Decide whether you want to use the DHC protocol:
•on
•off
5.3.2.2 IP
Set the appropriate IP address.
5.3.2.3 SN
Set the appropriate subnet mask.
Allow external parameter setting
Refuse external parameter setting
5.3.2.4 Std. GW
If you use a standard gateway, enter the address here. Ensure that the IP address
of the standard gateway suits the subnet mask, so that the ISOnet function can operate correctly.
5.3.2.5 DNS server
If you are using a DNS server, enter the IP address of the server.
5.3.2.6 Domain
Enter the domain.
5.3.3 BCOM
Settings for comunication with other devices via BCOM.
5.3.3.1 System name
Configure the system name of the network in which the devices are located. In order to communicate via BCOM, the devices must have the same system name.
5.3.3.2 Subsystem
Configure the subsystem name of the network in which the devices are located.
The devices can communicate with the same or different subsystem addresses.
EXCEPTION: In order to use the ISOnet functions, the devices must have the same
subsystem address.
5.3.3.3 Device address
Assign a device address. Each device must have a different address to distinguish
one device from another in the system and ensure correct communicate.
5.3.3.4 Timeout
Set a timeout time for messages between 100 ms…10 s.
This time specification defines the maximum permissible time for a device to respond. Wenn exceeding the timeout time in the ISOnet, the fault message "Failure
address" is shown.
34
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Page 35
8. Menu
5.3.3.5 TTL for subscription
Set a time from 1s…1092min.
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.
5.3.4 Modbus/TCP
Settings for comunication with other devices via Modbus/TCP.
5.3.4.1 Port 502
Choose whether you want to use Modbus/TCP:
•on
•off
5.3.5 BMS
For Retrofit only. For further information please contact the Bender-Service.
5.4Display
The display brightness of the ISOMETER® iso685-D-B can be adjusted in the "Display" menu:
5.4.1 Brightness
Adjust the brightness for the display between 0 and 100 %.
5.5Password
Use the password function to protect the device parameters against unauthorised
adjustment. The default password is 0000.
5.5.1 Password
Enter an individual four-digit password.
5.5.2 Status
Decide whether you want to use the password query:
•on
•off
Password query active
Password query inactive
5.6Commissioning
The comissioning wizard of the ISOMETER® can be opened again in the "Comissioning" menu.
5.7Data backup
In the data backup menu device settings can be saved or device settings you have
already saved can be restored.
•Save
•Restore
5.8Service
The service menu can only be accessed by Bender Service staff.
6.0Info
In the menu "Info" the current settings of the ISOMETER® iso685-D-B can be
viewed. Navigate through the different views using the and buttons:
•Info - Device
•Info - Software
•Info - Measurement technique
Device name, serial number, article number
Software version measurement technique,
software version HMI
Selected profile, selected system type
35
•Info - Clock
•Info - Ethernet
Time, date, summer time
IP address, DHCP status, MAC address
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 36
9. Device communication
9.1Ethernet interface
The Ethernet interface can be used for communication with Modbus, web server
and BCOM.
9.2BCOM
BCOM is intended for communication of Bender devices via Ethernet
All devices that communicate over 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) on
http://www.bender.de/manuals.
When address 0 has been set for the communication via BCOM the
device can be accessed via the network (e. g. for parameter setting,
etc.) but it cannot communicate with other devices.
9.3Modbus/TCP
Modbus is an international widely spread protocol for data transfer.
All measured values, messages and parameters are stored in virtual register addresses. Data can be read out with a read command on a 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 annex
"Modbus configuration“ of the ISOMETER® iso685 (D00022) on
http://www.bender.de/manuals.
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 34).
36
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 37
9. Device communication
9.4Web server
The web server of the device ISOMETER® iso685 represents the device functions
graphically. The web server can be used to read out measured values and also for
parameter setting.
A maximum of 5 TCP/IP connections can be used simultaneously.
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.
37
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10.
IT-System 1IT-System 2
PE
PE
Special functions for coupled IT systems
10.1 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 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.
10.2 System isolation via digital input with two coupled
systems
In order to deactivate the ISOMETER® iso685-D-B via one of the
digital inputs, the coupling switch must have a free contact.
The ISOMETER® iso685-D-B kann be isolated from the IT system and the measuring
functions can be deactivated via the X1 connector. 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® iso685-D-B selectively in coupled IT systems via the auxiliary contact of the coupling switch.
38
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 39
IT-System 1IT-System 2
IT-System 3IT-System 4
PE
PE
PE
PE
PLC Input Output
IT-System 1IT-System 2
PE
PE
IT-System 1IT-System 2
IT-System 3IT-System 4
PE
PE
PE
PE
Ethernet
SWITCH
CAUTION
10.
Special functions for coupled IT systems
10.3 System isolation via digital input with several coupled
systems
In order to deactivate the ISOMETER® iso685-D-B via one of the
digital inputs, the coupling switch must have a free contact.
10.4 System isolation via ISOnet
With several coupled systems, the ISOMETER®s iso685-D-B can be deactivated as
described on page 38
Also an additional PLC for selective deactivation is required to ensure that at least
one ISOMETER® iso685-D-B per system remains active.
39
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.
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 40
10.
Special functions for coupled IT systems
If the ISOnet function is deactivated on an ISOMETER® in an ISOnet
interconnection, it will measure permanently and will not forward
measuring comands 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 is not permanently carried out.
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.
If in addition to the ISOnet interconnection the digital inputs are
wired and a device is deactivated over a digital input, the device
will forward the measuring authorisation until the signal at the
digital input disappears. Afterwards, it participates again in the
the measuring interconnection.
The IP address of the standard gateway must suit the subnet mask,
so that the ISOnet function can operate correctly.
Maximum number of devices ISOnet: 5 devices
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, sub net 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 with the smallest 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 isolated 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.
40
The short measuring cycles during ISOnet operation may lead to
fluctuating measured values for voltage and frequency measurement.
iso685-D-B_D00177_01_M_XXEN/01.2016
Page 41
11. Settings
11.1 Profile overview
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
Power
frequency
15…460 Hz
15…460 Hz
15…460 Hz
10…460 Hz
1…460 Hz
System
leakage
capacitance
µF
0…150
µF
0…150
µF
0…5
0…1000
0…20 µF
0…20
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 system
frequencies and extraneous DC voltages. When using inverters and dynamic
frequency control, select inverters > 10 Hz or inverters < 10 Hz.
This profile is used to reduce the measurement voltage ± 10 V in control systems with lower nominal voltages in order to reduce the impact by the ISOMETER® iso685-D-B 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 localisation 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…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.
response times see “Diagrams” on page 46.
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t
R
R
an1
R
an2
Alarm 1
active
Alarm 2
active
Alarm 2
inactive
∆ 25 % + 0.5 kΩ
Alarm 1
inactive
∆ 25 % + 0.5 kΩ
+I
x
X1X1
t
0
1
t(on)
Reaction
Impulse on
Reaction
Impulse o
11. Settings
11.2 Settings insulation alarm
Activation or deactivation of the two alarm levels R
(Alarm 1) and R
an1
2) are illustrated in the following graphic:
An alarm will become inactive as soon as +25 % +0.5 kΩ of the set operating value
is exceeded.
an2
(Alarm
•active low
1
Response time t(on) / t(off) after a switch-off
signal.
X1X1
+I
x
ReactionReaction
0
< t(on)
t(on)
Impulse onImpulse o
t
11.3 Digital input mode
The operating mode for the digital input can be set to the following values:
•high active
< t(on)
Response time t(on) / t(off) after a switch-on
signal.
11.4 Typical circuit of the digital inputs
The digital inputs can be wired as follows:
I1
I2
I3
A
B
Device
inactive
M+
Q2
Q1
+
ResetTest
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≥ 1
Response
Function 1
Function 2
Function 3
DC+ alarm
Symmetrical alarm
DC- alarm
0 %
25 %
50 %
75 %
100 %
11. Settings
11.5 Digital output modes
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 applied across
the output.
X1X1
Q
x
In the passive mode the output of the applied
potential switches to ground.
X1X1
+
Q
x
Observe the maximum output current!
Maximum output current in case of internal voltage supply
via A1/+ and A2/-: 200 mA in total to X1.
Maximum output current in case of external voltage supply
via X1+: 1 A per output.
11.6 Description of the output functions
Three functions can be assigned to one output. The functions are linked to an OR
operator:
The following output functions are possible:
•off
•Iso. alarm 1
•Iso. alarm 2
•Connection fault
•DC- alarm
•DC+ alarm
•Symmetrical 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 connected load resistor for the voltage output is too
low.
• The load connected to the current output is too high.
• Sum of the external loads to X1 is too high, or operation
is outside the temperature range of -25…+55 °C.
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
tem 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
tem voltage is U
The status of the output changes in the event of a resistance ratio between DC+ and DC- of 25 % to 75 %.
≥50 V.
n
≥50 V.
n
an1.
an2.
and when the nominal sys-
an1
and when the nominal sys-
an1
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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
3
= Measured value analogue output
R
F
= Insulation fault in kΩ
11. Settings
•Device error
•Common alarm
•Measurement ended
The status of the output changes in the event of an internal device error.
The status of the output changes on the occurrence of any
alarm and fault messages (Iso. alarm 1 & 2, DC- / DC+
alarm, symmetrical alarm, connection and device fault).
The status of the output changes at the end of the initial
measurement.
11.7.2 Midscale
Select the appropriate midscale. The following parameters can be set:
•LinearThe switching signal is linear to the insulation resist-
ance in the indicated measuring range.
•Device inactive
The status of the output changes when the device has
been deactivated via a digital input or the control menu.
11.7 Description of the analogue output
11.7.1 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
Voltage output
•0-10 V
•2-10 V
Permissible load ≤ 600 Ω
Permissible load ≤ 600 Ω
Permissible load ≤ 4 kΩ
Permissible load ≥ 1 kΩ
Permissible load ≥ 1 kΩ
•28 k
•120 k
Ω
Ω
The switching signal is analogue to the midscale of
28 kΩ or 120 kΩ on a measuring instrument.
Calculation of the insulation resistance using the analogue output:
Lower value
Analogue output
A
1
0 mA
4 mA
0 µA
0 V
2 V
Upper value
Analogue output
A
2
20 mA
20 mA
400 µA
10 V
10 V
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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
11. Settings
11.7.3 Function
Select the appropriate setting for function. The following parameters can be set:
•Insulation value
•DC shift
Depending on the measured insulation value, an analogue current or voltage signal is provided at the output.
Depending on the measured DC shift, 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".
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12. 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 690 V, fn = 50 Hz)
1
10
100
100001000100101
Response time [sec]
Response value R
an
[kΩ]
12.1 Response time profile power circuits
12.2 Response time profile control circuits
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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]
12. Diagrams
12.3 Response time profile generator
12.4 Response time profile high capacitance
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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]
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 ≤ 20 µF
C
e
≤ 5 µF
C
e
≤ 1 µF
12. Diagrams
12.5 Response time profile inverter > 10 Hz
12.6 Response time profile inverter < 10 Hz
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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)
• Check the wiring of the terminals L1/+, L2 and L3/- to the IT system
Check L1-L2-L3 for correct
connection!
Check E-KE connections for
interruptions!
Service mode active!
Profile does not suit the
application!
No DHCP server found!
No low-resistance connection
between the line conductors
No low-resistance connection
between the terminals E and KE to
earth (PE)
The device is in maintenance
condition
Wrong profile selected for this
application
Connection problem at the Ethernet
interface
• Press the test button
• Check mains voltage
•Check the fuses
• Check the wiring of the terminals E and KE to earth (PE)
• Press the test button
• Contact Bender ServiceSERVICE lights up
• Check measured system capacitance or system frequency in the
Info menu
• Select another profile taking the characteristics into
consideration
• Check cable connection at the Ethernet interface.
• Check the DHCP server's availability.
• Check the DHCP's interface configuration in the device/see menu
5.3.2.1
Chapter 5
Chapter 5
Chapter 11.1/
menu 1.2
ALARM 1 + ALARM 2
flash alternately
ALARM 1 + ALARM 2
flash in common
mode
Check time and date!
Load at Dig. Out too high!
≤200 mA @ 0…+55°C
I
L
Device error xInternal device error
Disp.IsoNet device
Failure address
Time and date have not yet been
set.
Sum of the external loads to X1 is too
high, or operation is outside the
temperature range of 0…+55 °C
The configured number of devices
does not match the number of
devices that are actually included in
the ISOnet interconnection.
One device of the
isoNet interconnection is not
accessible
50
• Set local time and date (in case of voltage failure a buffer for
three days)
• Check load at X1.+, X1.Q1 and X1.Q2
• Check ambient temperature
• Press the test button
• Switch the supply voltage on and off
•Contact Bender Service
• Check settings
• Check Ethernet connection
• Check Ethernet connection
• Check device function
Chapter 8/menu 5.2
Chapter 11.5
SERVICE lights up
iso685-D-B_D00177_01_M_XXEN/01.2016
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13. Alarm messages
General fault at ISOnet, which is not
covered by "Num.IsoNet devices"
Disturbance isoNet
and "Failure address". For example,
sending messages can fail or
another device cannot process a
message.
• Check Ethernet connection
• Check device function
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14. Technical data
14.1 Data in tabular form
()* = Factory setting
** = Indication limited outside the temperature range -25…+55 °C
Insulation coordination
Rated insulation voltage (IEC 60664-1) ........................................................................................................................1000 V
Rated impulse voltage (IEC 60664-1) ............................................................................................................................... 8 kV
Overvoltage category ............................................................................................................................................................. III
Voltage test, routine test (IEC 61010-1)......................................................................................................................... 4.3 kV
Supply voltage
Supply via A1/+, A2/-:
Supply voltage range U
Tolerance of U
Power consumption typically 50 Hz (460 Hz)........................................................................ 5.7 W/20 VA (7.9 W/45.5 VA)
Supply via X1:
Supply voltage U
Tolerance of U
IT system being monitored
Nominal system voltage range U
.......................................................................................................................................................................... DC 0…1000 V
Tolerance of U
Frequency range of U
Response values
Response value R
Response value R
Relative uncertainty (acc. to IEC 61557-8) .............................................depending on the profile, ±15 %, at least ±1 kΩ
......................................................................................................................................................... DC 24 V
s
.............................................................................................................................................. DC -20…+25 %
s
..................................................................................................................... AC 0…690 V
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)
Startup delay T
...................................................................................................................................... 0…120 s (0 s)*
startup
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
(without external coupling device).................................................................................AC 25…690 V
n
n
........................................................................................................................................................................ DC 25…1000 V
Voltage range measurement of U
Tolerance measurement of U
Measuring range C
........................depending on the profile and coupling mode, typ. > 10 kΩ
e
Display
Display**........................................................................................................... Graphic display 127 x 127 pixel, 40 x 40 mm
Display range measured value....................................................................................................................... 0.1 kΩ…20 MΩ
LEDs
ON (operation LED) .......................................................................................................................................................... green
Number .................................................................................................................................................................................... 3
Operating mode, adjustable ................................................................................................................. active high, active low
Voltage .........................................................................................................................Low DC -3…5 V, High DC 11…32 V
Digital outputs
Number .................................................................................................................................................................................... 2
Voltage passive ...........................................................................................................DC 0…32 V, active DC 0/19.2…32 V
Max. current internal sum X1.............................................................................................................................. max. 200 mA
Max. current external per channel ..............................................................................................................................max. 1 A
Analogue output
Number .................................................................................................................................................................................... 1
Operating mode..............................................................................................................linear, midscale point 28 kΩ/120 kΩ
Functions........................................................................................................................................... insulation value, DC shift
Current, voltage ........................................................ 0...20 mA (< 600 Ω), 4…20 mA (< 600 Ω), 0…400 μA (< 4 kΩ),
......................................................................................................................................0…10 V (>1 kΩ), 2…10 V (>1 kΩ)
Data rate......................................................................................................................................... 10/100 Mbit/s, autodetect
Cable length ...............................................................................................................................................................≤ 100 m
IP address .................................................................................................................................. DHCP/manual* 192.168.0.5*
Number ISOnet devices .......................................................................................................................................................≤ 5
Switching elements
Number of switching elements ........................................................................................................... 2 changeover contacts
Rated operational voltage .............................................................................................230 V /
ational cur
Rated oper
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 ..........................................................................................................................................-25…+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
rent ......................................................................................................... 5 A / 3 A / 1 A / 0.2 A / 0.1 A
230 V / 24 V / 110 V / 220 V
(1
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14. Technical data
Connection
Connection type..........................................................................................pluggable screw terminal or push-wire terminal
Screw-type terminal:
Nominal current............................................................................................................................................................. ≤ 10 A
Stripping length............................................................................................................................................................... 7 mm
Multiple conductor, flexible with ferrule without plastic sleeve......................................................................0.25…1 mm²
Multiple conductor, flexible withTWIN ferrule with plastic sleeve .................................................................0.5…1.5 mm²
Push-wire terminal:
Nominal current............................................................................................................................................................. ≤ 10 A
Stripping length............................................................................................................................................................. 10 mm
flexible with ferrules, with/without plastic collar ........................................................................................ 0.25…2.5 mm²
Multiple conductor, flexible withTWIN ferrule with plastic sleeve .................................................................0.5…1.5 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 ..................................................................................display oriented, cooling slots must be ventilated vertically
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
Ambient temperatures...................................................................................................................................... -40…+70 °C
Classification of climatic conditions acc. to IEC 60721:
Staionary use (IEC 60721-3-3) ................................................................ 3K5 (condensation and formation of ice possible)
Classification of mechanical conditions acc. to IEC 60721:
.................................. 3M7
Stationary use (IEC 60721-3-3) ..................................................................................................
1)
This is a class A product. In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.
...
14.2 W option
Devices with the suffix "W“ feature increased shock and vibration resistance.
By covering the electronics with a special varnish and by means of constructive
measures, a higher protection against moisture and mechanical stress is achieved.
Combination sensor variant iso685 with FP200:
The requirements of Option "W" will only be fulfilled when the sensor variant iso685 is mounted on DIN rail and connected to the
FP200 via the patch cable.
Also refer to Quickstart FP200.
14.3 Standards and certifications
The ISOMETER® has been developed in compliance with the following standards:
• DIN EN 61557-8 (VDE 0413-8)
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14. Technical data
14.4 Ordering details
Typ e
iso685-D-B
iso685W-D-B*
Combination
iso685-S-B + FP200
Combination
iso685W-S-B + FP200W*
* W option: Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C
Accessories
DescriptionArt. No.
iso685 mechanical accessories comprising:
Terminal cover and 2 mounting clips*
iso685 plug kit, screw terminals*B 91067901
iso685 plug kit, push-wire terminalsB 91067902
Supply voltage U
AC 100…240 V; 47…460 Hz
DC 24 V, 100…240 V
AC 100…240 V; 47…460 Hz
DC 24 V, 100…240 V
AC 100…240 V; 47…460 Hz
DC 24 V, 100…240 V
AC 100…240 V; 47…460 Hz
DC 24 V, 100…240 V
S
Art. No.
B 91067020
B 9106 7020W
B 9106 7220
B 9106 7220W
B 91067903
Suitable system components
DescriptionTypeArt. No.
Appropriate measuring instruments
**
: 28 kΩ,120 kΩ
SKMP
Current values: 0…400 µA, 0…20 mA
(for more information, click here)
Display for front-panel mounting
iso685-S-B
(only in combination with FP200)
iso685W-S-B*
(only in combination with FP200)
7204-1421B 986 763
9604-1421B 986 764
9620-1421B 986 841
FP200B 9106 7904
FP200WB 9106 7904W
Supply voltage:
AC 100…240 V; 47…460 Hz
DC 24 V, 100…240 V
Supply voltage:
AC 100…240 V; 47…460 Hz
DC 24 V, 100…240 V
B 91067120
B 91067120W
* W option: Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C
Recommissioning 21
Commissioning wizard 20, 21
Communication interfaces 36
BCOM 36
Ethernet 36
Modbus/TCP 36
Web server 37
Connection
3(N)AC system 16
A1/+, A2/- 18
AC system 16
Connection conditions 15
Connections and panel 11
DC system 17
Ethernet interface 19
Relay 1 interface (11 12 14) 19
Relay 2 interface (21 22 24) 20
Supply voltage 18
X1 interface 17, 18
Control circuits 41
Coupled IT systems 38, 39, 40
Coupling monitoring 29
D
Data - isoGraph 36
Date 21, 33
Diagrams 46
Display 23
Data - isoGraph 36
Fault display (active) 23
Fault display (inactive) 24
Fault memory 25
History memory 26
Limit values for R(an) 23
Signal quality of the measurement 23
Standard display 23
E
Ethernet interface 19
F
Factory setting 52
Features 9
Functional description
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Index
iso685-D-B 9
ISOnet 39
H
Hazards when handling the device 8
History memory 26
I
Inputs 29, 42
Inspection 8
Installation
DIN rail mounting 14
Screw mounting 14
Intended use 7
Interface 34
BCOM 36
DHCP 34
Ethernet 34
Modbus/TCP 36
Web server 37
X1 17, 18
ISOnet function 39
L
Language 21, 33
Liability 8
M
Mains voltage 7
Measured values 32
Menu 27
Minimum current rectifier 15
Minimum distance 15
Modbus/TCP 36
N
Nominal system voltage 9, 41, 52
Nominal voltage 7, 15
Normal operation 23
O
Operating mode 31, 42
Operation
Buttons 20
Commissioning 15, 20
Ordering information 54
Output 30
Analogue output 44
Digital output 43
Functional description 43
View current settings 35
P
Password 35
Power frequency 41
Product description 9
Profile overview 41
Protective earth conductor (PE) 15
R
Response time
Profile control circuits 46
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Index
Profile generator 47
Profile high capacitance 47
Profile inverter 10 Hz 48
Profile power circuits 46
Relative uncertainty 49
Response value 9, 52
S
Safety instructions 7
Self-test 10, 22
Service menu 35
Settings 41
Alarm 28
Basic settings 33
Coupling devices 22, 29
Coupling monitoring 29
Date and time 21, 33
Inputs 29
Interface 34
Language 21, 33
Manual test 32
Measured values 32
Measurement insulation resistance 29
Password 35
Profile 22, 28
Reset alarm message 32
Response value Ran1, Ran2 22
Start-up delay 29
System type 21
Signal quality of the measurement 23
Start initial measurement 32
Start-up delay 29
Storage 8
Supply voltage 52
System isolation via digital input with two coupled systems 38
System leakage capacitance 7, 9, 41
T
Technical data 52
Transport 8
W
W (W option) 54
W option 54
Warranty 8
Web server 37