This manual is intended for qualified personnel working in electrical
engineering and electronics!
Read the manual before you begin to mount, connect, and commission
the unit. Always keep the manual within easy reach for future reference
following commissioning.
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.
DANGER
This signal word indicates a medium risk of danger that can lead to
death or serious injury if not avoided.
WARNING
This signal word indicates a low-level risk that can result in minor or
moderate injury or damage to property if not avoided.
CAUTION
This symbol denotes information intended to assist the user in making
optimum use of the product.
1.2Technical support
1.2.1 End customer support and advice
Technical support by phone or e-mail for all Bender products
• Questions concerning specific customer applications
• Commissioning
• Troubleshooting
Telephone: +49 6401 807-760 (365 Tage von 07:00 - 20:00 Uhr [MEZ/UTC +1])
Fax: +49 6401 807-259
0700BenderHelp (Tel. and Fax in Germany only)
E-mail: support@bender-service.com
1.2.2 Repair
Repair, calibration, update and replacement service for Bender products
• Repairing, calibrating, testing and analysing Bender products
• Hardware and software update for Bender devices
• Delivery of replacement devices
• Extended guarantee, in-house repair service, replacement devices at no extra cost
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 Manufacturers' Association) also applies. Amending the “General Conditions
for the supply of Products and Services of the Electrical and Electronics Industry” (GL)*
Sale and delivery conditions can be obtained from Bender in printed or electronic format.
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.
This operating manual, especially the safety instructions, must be observed by all personnel working on the device. Furthermore, the rules and regulations that apply for accident
prevention at the place of use must be observed.
1.7Disposal
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.
1.6Warranty 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:
• Improper use of the device.
• Incorrect mounting, commissioning, operation and maintenance of the device.
• Failure to observe the instructions in this operating manual regarding transport,
commissioning, operation and maintenance of the device.
• Unauthorised changes to the device 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.
• Catastrophes caused by external influences and force majeure.
• Mounting and installation with device combinations not recommended by the manufacturer.
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iso685-x-B_D00177_07_M_XXEN/07.2019
2. Safety instructions
Safety instructions
2.1General safety instructions
Part of the device documentation in addition to this manual is the enclosed "Safety instructions for Bender products".
Read the operating manual before starting to install, connect and commission the device. After successful commissioning, keep the manual
within easy reach for future reference.
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:
• A fatal electric shock
DANGER
• 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.
2.3Device-specific safety information
Installation inside a control cabinet
If the ISOMETER® is installed inside a control cabinet, the insulation fault
message must be audible and/or visible to attract attention.
IT systems with several ISOMETER®s
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. For IT systems coupled via diodes or capacitances a central control of the different ISOMETER®s is required.
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.
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.
2.4Intended use
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.
8
The ISOMETER® iso685… monitors the insulation resistance of unearthed AC/DC main
circuits (IT systems) with nominal system voltages of AC 0…690 V or DC 0…1000 V.
DC components existing in AC/DC systems do not influence the operating characteristics.
A separate supply voltage allows de-energised systems to be monitored too. The maximum permissible system leakage capacitance is 0…1000 µF, depending on the profile.
Intended use also implies:
• Reading and observing all information in the operating manual
• Compliance with test intervals
In order to meet the requirements of applicable standards, customised parameter set-
tings 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.
iso685-x-B_D00177_07_M_XXEN/07.2019
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
• Two separately adjustable response value ranges of 1 k…10 M
• High-resolution graphical LC display
• 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 A, 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)
• Remote diagnosis via the Internet (made available by Bender Service only)
• isoData: Continuous uninterrupted data transmission
• RS-485/BS (Bender sensor bus) for data exchange with other Bender devices via
Modbus RTU protocol
• BCOM, Modbus TCP und web server
• ISOnet: Internal separation of the ISOMETER® from the IT system
to be monitored (e.g. if several IT systems are interconnected)
• ISOnet priority: Permanent priority of a device within the network
• ISOloop: Special function for ring systems (all systems are coupled)
AMP
PLUS
and other profile-specific measurement methods
3.2Product description
3.2.1 General product description
The ISOMETER® is an insulation monitoring device for IT systems in accordance with
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).
The ISOMETER® iso685–S–x is the sensor variant from the iso685 device family. The only
difference between this variant and the ISOMETER® isoHR685-D-B is that it does not have
a display. The ISOMETER® iso685–S–P must be used in combination with a front panel
through which it is operated. The operation of the front panel is equal to the operation of
the ISOMETER® with an integrated display, which is described in this manual.
Only the sensor variant (i.e. ISOMETER® iso685–S–P) can be connected to
the front panel. Connection to the display variant (i.e ISOMETER® iso685–
D–P) 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.
3.3Function 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 microprocessor-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.
The response values and other parameters are set using a commissioning wizard as well
as 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 password protected to prevent
unauthorised changes.
To ensure proper functioning of connection monitoring, the device requires the setting
of the system type 3AC, AC or DC and the required use of the appropriate terminals L1/+,
L2, L3/-.
3.2.2 Special ISOMETER® characteristics
The ISOMETER® iso685–D–x belongs to the iso685 device family and features an integrated display. This manual applies in full to this ISOMETER®.
9
iso685-x-B_D00177_07_M_XXEN/07.2019
FunctionFunction
Test successful
Test unsuccessful
Test not available
(e.g. incorrect device settings).
Test is being carried out.
Measurement
technique
Coupling
Connection
TEST
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. Therefore different measuring profiles can be selected with which the device can
optimally adjusted.
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 or 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 current insulation resistance displayed at the time of resetting is at least 25 %
above the actual 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 ISOMETER® 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.
The ISOMETER® is able to synchronise itself with other ISOMETER®s. This makes it possible
to monitor capacitive coupled IT systems without interfering with each other.
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“).
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
Initial measurement
„Initial measurement“).
If a fault is detected during the self test, the respective LEDs of the device light (refer to
„Alarm messages“). In addition, the respective message will be indicated on the display
and a previously programmed output will provide the respective signal.
√
33 %
until the first valid value is measured (refer to
3.4Interfaces
• Communication protocol Modbus TCP
• Communication protocol Modbus RTU
• BCOM for communication of Bender devices via Ethernet
• BS bus for communication of Bender devices (RS-485)
• isoData for recording and managing measured values
• Integrated web server for reading out measured values and setting parameters
10
iso685-x-B_D00177_07_M_XXEN/07.2019
4. Device overview
93
108
110
Device overview
4.1Dimensions
Enclosure iso685…-device familiy – dimensions in mm
4.2Device variants
iso685(W)-D…
isoxx685(W)-D…
iso685(W)-S…
isoxx685(W)-S…
The iso685 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.
Device version iso685-S-P features neither a display nor operating controls. It can only be used in combination with the FP200W and is
operated via this front panel.
11
iso685-x-B_D00177_07_M_XXEN/07.2019
Device overview
To p
10A1/+, A2/- Connection to the power supply voltage U
s
11L1/+ Connector for the IT system to be monitored
12L2 Connector for the IT system to be monitored
13L3/- Connector for the IT system to be monitored
14KE, E Connection to PE
REMOTE
20
20X4REMOTE interface to connect the FP200(W) *
50X3Optional expansion interface for Bender products
Rear
Front
Connction bottom
Control panel
Connection top
iso685(W)-S… and isoxx685(W)-S…iso685(W)-D… and isoxx685(W)-D…
242221141211RETHX1
1918
1716
15
15X1Multifunctional I/O interface (see „Connection of the X1 interface“)
16ETH (X2)Ethernet interface
17RSwitchable terminating resistor for termination of the RS-485 interface
1811 12 14 Connector for alarm relay 1
1921 22 24 Connector for alarm relay 2
* The connection between the iso685 device and an FP200(W) can
be interrupted and restored at any time (Plug&Play).
Bottom
4.3Connection and panel
10
11
12
1314
5050505050505050505050
12
iso685-x-B_D00177_07_M_XXEN/07.2019
Device overviewDevice overview
4.4Display elements and device buttons
1
6
3
4
5
4.4.1 Display elements
1ONThe "ON" LED lights when the device is turned on.
3SERVICE
4ALARM 1
5ALARM 2
6Display
The "SERVICE" LED lights when there is either a device fault or a connection
fault, or when the device is in maintenance mode.
The "ALARM 1" LED lights when the insulation resistance of the IT system
falls below the set response value R
The "ALARM 2" LED lights when the insulation resistance of the IT system
falls below the set response value R
The device display shows information regarding the device and the measurements. Other information is available in chapter„Display“.
an1
an2
.
.
7
9
11
8
10
12
4.4.2 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.
10
11
12
7
MENUOpens the device menu.
8
9
ESC
RESETResets alarms.
TESTStarts the device self test.
DATAIndicates data and values.
INFOShows information.
OKConfirms an action or a selection.
Navigates up in a list or increases a value.
Cancels the current process or
navigates one step back in the device menu.
Navigates backwards (e.g. to the previous setting step) or
selects a parameter.
Navigates forwards (e.g. to the next setting step) or
selects a parameter.
Navigates down in a list or reduces a value.
13
iso685-x-B_D00177_07_M_XXEN/07.2019
Device overviewDevice overview
Activate the menu by pressing the
"MENU" button
IT system
230 k
Ω
OK
R(an)100kΩ/20k
Ω
Commissioning
x.6
2/1x
Please set the current
date and time.
Use the button to select menu items.
Press "ESC" to return form the respective
menu level.
An overview of the device menu can be
found in chapter .
Use the buttons and to select values
from a predefined list (menu). The present
value is indicated by a black menu item.
Confirm the value with the "OK" button.
Exit the list selection by pressing "ESC".
System type
x.6.6
• DC
o AC
o 3AC
Date
x.6.4
28.07.2016
Min.
Max.
1
12
Use the and buttons to select a parameter. The present parameter is indicated by the symbols. Values can be
changed using the and buttons. Confirm input text by pressing "OK". Exit text
input by pressing "ESC".
Use the (forward) and (backward)
buttons to select a character from the display. To enter the next character, use the
button to select the next position.
To delete a character that has been entered, use the and buttons to select
the position of the character to be deleted
and then select "del" using the and
buttons.
Confirm the entered text with "OK". Exit
the character input by pressing "ESC".
Ethernet
x.3.2
192.
ghijklmnopqrstuvwxyz
-.0123456789abcdef
4.5Operating and navigating
4.5.1 Menu selection
4.5.2 List selection
4.5.4 Character input
4.5.3 Parameter selection and value adjustment
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5. Mounting
Mounting
5.1Common information
Only qualified personnel are permitted to carry out the work necessary
to install, commission and run a device or system.
Read the manual before you begin to mount, connect, and commission
the unit. Always keep the manual within easy reach for future reference
following commissioning.
Danger of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
DANGER
• A life threatening 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
electrical installations.
5.2Mounting spaces
20 mm
0 mm0 mm
20 mm
15
iso685-x-B_D00177_07_M_XXEN/07.2019
MountingMounting
108
107,3
100
72
54
Ø M4
c
l
i
c
k!
cl
i
ck!
cl
i
ck!
5.3Screw 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. Drill the mounting holes for the M4 thread according to the drilling template.
3. Fix the ISOMETER® using three M4 screws..
5.4DIN 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. Mount the ISOMETER® onto the DIN rail.
3. Fix the ISOMETER® onto the DIN rail by pressing the mounting clips until they snap
into place
108
18
Dimensions in mm
Dimensions in mm
Mounting clips
The installation of a third mounting clip is only required for "W variants".
16
54
iso685-x-B_D00177_07_M_XXEN/07.2019
6. Connection
Connection
6.1Connection requirements
In accordance with VDE 0100, 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:
• A fatal electric shock
DANGER
DANGER
• 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!
High voltages may be present at the terminals "L1/+" to "L3/-". Direct contact with these will likely result in electrocution.
• Make sure the terminal covers are properly mounted and clicked in
before putting the device into operation.
• If the terminals "L1/+", "L2", "L3/-" of the device are connected to a live
IT system, do not disconnect terminals "KE" and "E" from the protective
conductor ("PE").
• Connect terminals "KE" and "E" individually to the protective earth conductor "PE".
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!
Make sure that only one insulation monitoring device is connected in
each conductively connected system. If several devices are connected, the
device does not function and does not signal insulation faults. This can
damage the installation.
Load currents can result in damage of property and personal injury. Therefore, do not apply any load current to the terminals. The connecting lines
"L1/+", "L2", "L3/-" to the system to be monitored must be designed as spur
lines.
Failure to connect the device as illustrated in the manual leads to deviating
technical data and function restrictions.
Check proper connection!
Prior to the 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 a monitored AC system contains galvanically coupled DC circuits,
the following applies: An insulation fault can only be detected correctly
when the rectifier valves carry a minimum current of > 10 mA.
For UL applications:
Use 60/75 °C copper lines only!
For UL and CSA applications, the supply voltage must be protected via
5A fuses.
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iso685-x-B_D00177_07_M_XXEN/07.2019
ConnectionConnection
A1/+ A2/-L1/+L2L3/-KE E
U
S
U
n
L3
N
L2
L1
E
KE
L3/-
L2
L1/+A2/–A1/+
A1/+ A2/-L1/+L2L3/-KE E
U
S
U
n
L2L1L2
L1
E
KE
L3/-
L1/+A2/–A1/+
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
WARNING
to be monitored can be omitted if the wiring is designed in such a manner
that the risk of a short circuit is reduced to a minimum. Ensure short-circuit-proof 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
WARNING
to be monitored can be omitted if the wiring is designed in such a manner
that the risk of a short circuit is reduced to a minimum. Ensure short-circuit-proof and earth-fault-proof wiring.
18
iso685-x-B_D00177_07_M_XXEN/07.2019
ConnectionConnection
A1/+ A2/-L1/+L2L3/-KE E
U
S
U
n
L−
L+
*
Un > 690 V
=> F 2A
*
*
E
KE
L3/-
L1/+A2/–A1/+
A1/+ A2/-L1/+L2L3/-KE E
U
S
A2/–A1/+
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
WARNING
to be monitored can be omitted if the wiring is designed in such a manner
that the risk of a short circuit is reduced to a minimum. Ensure short-circuit-proof and earth-fault-proof wiring.
6.5Connection to the supply voltage
Danger of damage to property due to faulty connections!
The device may be damaged if it is simultaneously connected to the supply voltage via the "X1" interface and via "A1/+" and "A2/-".
CAUTION
Do not connect the device simultaneously via "A1/+", "A2/-" and "X1" to
different supply voltage sources.
Supply via external voltage sources
In case of external supply (24 V) the device can be supplied via "A1+"/"A2"
– OR via "X1". In case of supply via "A1+"/"A2", make sure that +24 V are
applied to "A1/+" and that "A2/-" is connected to "GND" (ground).
External power supply units for voltage supply of the ISOMETER® via terminal X1 must meet the immunity and emission requirements of the relevant application standard. For connecting cables longer than 1 m,
shielded cables must be used.
In systems with a nominal system voltage of more than 690 V and with overvoltage category III, a fuse for the connection to the system to be monitored must be provided. * 2A fuses recommended.
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iso685-x-B_D00177_07_M_XXEN/07.2019
ConnectionConnection
I1 I2 I3 A B
X1
I1
I2A BI3
Q1
Q2
M+
+
high
active
low
active
RS-485
Bus
RS-485
Bus
V
A
passive adjustable
X1
active adjustable
Currentmeter
Voltagemeter
TESTRESET
Deactiv.
Device
+24 V
I1…I3 (X1)Configurable digital inputs (e.g. test, reset, …)
A, B (X1)
Serial interface RS-485,
termination by means of a DIP switch R.
+ (X1)
Supply voltage of the inputs and outputs I, Q and M.
Electrical overload protection. Automatic shutdown in the
event of a short circuit and transient (resettable).
If the supply is via an external 24 V source, then A1/+, A2/must not be connected.
Connection with standard patch cable (RJ45/no crossover cable) to other ISOMETER®s or
interconnection of several ISOMETER®s in STAR topology via a switch.
6.8Connection to relay interfaces 1 und 2
141211
242221
20
Relay 111 common contact12 N/C contact14 N/O contact
Relay 221 common contact22 N/C contact24 N/O contact
iso685-x-B_D00177_07_M_XXEN/07.2019
6.9Position the terminal covers and click them into place
c
li
c
k!
click!
c
li
c
k!
click!
Fix the terminal covers to the provided enclosure recesses until they snap into place.
ConnectionConnection
21
iso685-x-B_D00177_07_M_XXEN/07.2019
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