ISOMETER® iso685 - Bender Benelux BV

ISOMETER® iso685 - Bender Benelux BV
ISOMETER® iso685
Insulation monitoring device for unearthed AC, AC/DC and
DC systems (IT systems)
Vorläufiges Datenblatt
iso685-D_D00022_01_D_XXEN/11.2014
ISOMETER® iso685
Insulation monitoring device for unearthed
AC, AC/DC and DC systems (IT systems)
Product description
The ISOMETER® iso685-D 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, variablespeed drives).
Application
ISOMETER® iso685
Device features
• Insulation monitoring for unearthed systems
AC, 3(N)AC 0…690 V, DC 0…1000 V
• Nominal system voltage extendable via
coupling devices
• Two separately adjustable response values
1 kΩ…10 MΩ
• Combination of AMPPLUS and other profilespecific measurement methods
• Continuous measurement of the capacitance, voltage and system frequency
• Predefined measurement profiles to
meet different requirements
• Automatic adaptation to the system
leakage capacitance
• INFO button to display devices and
network settings
• Self monitoring with automatic alarm
message
• 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
• Permanent coupling monitoring of the
measuring lines
• AC, DC or AC/DC main circuits
• UPS systems, battery systems
• AC/DC main circuits with directly
connected DC components, such as
rectifiers, converters, variable-speed
drives
• Heaters with phase control
• Systems including switched-mode
power supplies
• IT systems with high leakage capacitances
Function
The insulation monitoring device iso685-D continuously monitors the entire insulation
resistance of an IT system during operation and triggers an alarm when the value falls
below a preset response value. To obtain a measurement the device has to be connected
between the IT system (unearthed system) and the protective earth conductor (PE).
A measuring current in the μA range is superimposed onto the system which is recorded
and evaluated by a micro-controlled measuring circuit. The measuring time is dependent
on the selected measurement profiles, the system leakage capacitance, the insulation
resistance and possible system-related disturbances.
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 real-time 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 a password. 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/-.
Measurement method
The iso685 series uses the patented AMPPlus measurement method.
This measurement method allows concise monitoring of modern
power supply systems, also in case of extensive, directly connected DC components and
high system leakage capacitances.
Standards
The ISOMETER® iso685 series corresponds to the device standard: DIN EN 61557-8
Approvals
• Freely configurable digital and analogue
inputs and outputs
• Two separate alarm relays with potentialfree contact
• N/O or N/C operation selectable
• High-resolution graphic LC display
• IsoGraph function for time-related representaton of the insulation resistance
• Remote setting of certain parameters via
Internet (option; COMTRAXX® Gateway)
• Worldwide remote diagnosis via Internet
(made available by Bender-Service only)
• RS-485 interface
• Multilingual
2iso685-D_D00022_01_D_XXEN/11.2014
ISOMETER® iso685
Operating elements
1 - “ ” button: up, increase value
2 - “RESET” button: Reset messages
“ ” button: back, select parameter
3 - “DATA” button: Display data values
“ ” button: down, decrease value
7
1
9
8
4
2
5
3
6
4 - “MENU” button: start device menu
“ESC” button: abort, return to the previous menu level
5 - “TEST” button: Carry out self test
“ “ button: forward, select parameter
6 - “INFO” button: Display information
“OK” button: OK, confirm
7 - LED “ON”: Operation
8 - LED indication “SERVICE, ALARM 1, ALARM 2”
9 - LC display
Ordering information
Nominal system voltage range Un
AC
0…690 V; 1…460 Hz
DC
0…1000 V
Supply voltage US
AC
100…240 V; 47…460 Hz
Accessories
DC
24 V, 100…240 V
Type
Art. No.
iso685-D
B 9106 7010
Suitable system components
Type designation
Art. No.
Type designation
Type
Art. No.
A set of screw terminals1)
A set of push-wire terminals
Enclosure accessories (terminal cover, 2 mounting clips) 1)
B 9106 7901
B 9106 7902
B 9106 7903
Appropriate measuring instruments
SKMP1): 28 kΩ,120 kΩ
Current values: 0…400 µA, 0…20 mA
7204-1421
9604-1421
9620-1421
AGH150W-4
AGH204S-4
AGH520S
B 986 763
B 986 764
B 986 841
B 9801 8006
B 914 013
B 913 033
AGH676S-4
B 913 055
included in the scope of delivery
1)
Coupling devices
SKMP = midscale
1)
iso685-D_D00022_01_D_XXEN/11.20143
ISOMETER® iso685
Wiring diagram
L1
L1
L2
L2
1
L3
N
PE
PE
L1/+
L3/-
KE
US
E
6A
5
A1/+
6
A2/-
7
L2
L1/+
L3/-
KE
E
L+
L-
2
PE
*
L1/+
*
L3/-
KE
E
3
IT system
PE
Example
AGHxxx
Un > 690 V AC
Un > 1000 V DC
X1
L1/+
L2
L3/-
12
X2
R
11
Connection to an AC system Un
Connection to a DC system Un
Connection to an IT system with coupling device
Connection to a 3(N)AC system
Supply voltage US (see nameplate) via 6 A fuse
Connection to the IT system to be monitored (L1/+, L2, L3/-)
Separate connection of KE, E to PE
14
21
22
24
11 10
9
1 -
2 -
3 -
4 -
5 -
6 -
7 -
12
8
8 - (K1) Alarm relay 1, available changeover contacts
9 - (K2) Alarm relay 2, available changeover contacts
10 -Switchable resistor R for RS-485 bus termination
11 -Ethernet interface, connection to Ethernet interface by
Bender Service staff only
12 -Digital interface
* - 6 A fuse for systems > 690 V
Note
According to DIN VDE 0100-430, devices for protection against a short-circuit can be omitted for the coupling of terminals L1/+ and
L3/- to the IT system ≤ 690 V to be monitored 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.
4iso685-D_D00022_01_D_XXEN/11.2014
4
ISOMETER® iso685
Digital interface X1
Digital interface
Terminal
Colour
I1 I2 I3 A B
+ Q1 Q2 M+
I1
I2
I3
A
B
+
Q1
Q2
M+
Input 1
Input 2
Input 3
RS-485 A
RS-485 B
+24 V
Output 1
Output 2
Analog output
Ground
X1
Digital Outputs
Digital Inputs
Passive
High-Active
X1
Qx
X1
+
Current Output
X1
Ix
X1
+
Low-Active
Active
I1
+
I2
I3
A
X1
M+
X1
A
Voltage Output
X1
Ix
X1
+
X1
Qx
X1
Example
Analog Output
X1
M+
X1
V
B
Deactivate
Device
M+
Q2
Q1
Reset
Test
Connection to X1
CAUTION
CAUTION
Danger of damage to property due to faulty connections!
The device can be damaged if the unit is simultaneously
connected to the supply voltage via the X1 interface, and
A1/+ and A2/- terminals. Do not connect the device simultaneously via X1, and A1/+ and A2/- to different supply
voltages.
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.
Only connect a nominal voltage of 24 V to the X1 interface.
Us
+
Dimension diagram
Dimensions in mm
108
93
110
iso685-D_D00022_01_D_XXEN/11.20145
Technical data
Insulation coordination
Display
Rated insulation voltage (IEC 60664-1) 1000 V
Rated impulse voltage (IEC 60664-1) 8 kV
Overvoltage category III
Pollution degree (Un < 690 V) 3
Pollution degree (Un < 1000 V)
2
Protective separation (reinforced insulation) between
(A1, A2) - (11, 12, 14) - (21, 22, 24) - [(L1/+, L2, L3/-), (E, KE), (X1, X2)]
Voltage test (IEC 61010-1) 4.3 kV
Graphic display Display range measured value
LEDs:
LED “On” (operation LED)
SERVICE
ALARM 1
ALARM 2
Supply voltage
Supply via A1/+, A2/-:
Supply voltage range US Tolerance of US Frequency range of US
Power consumption typically 50 Hz (460 Hz)
Supply via X1:
Supply voltage US
Tolerance of US AC/DC 100…240 V
AC -15…+10 %
DC -15…+15 %
DC, 47…460 Hz
5.7 W/20 VA (7.9 W/45.5 VA)
DC 24 V
DC -20…+25 %
IT system being monitored
Nominal system voltage range Un Tolerance of Un Frequency range of Un
AC 0…690 V
DC 0…1000 V
AC/DC + 15 %
DC, 1…460 Hz
127 x 127 pixel, 40 x 40 mm
0.1 kΩ…20 MΩ
green
yellow
yellow
yellow
Digital inputs
Number
Operating mode, adjustable Functions Voltage 3
active high, active low
none, test, reset, start measurement, deactivate device
Low DC -3…5 V, High DC 11…32 V
Digital outputs
Number 2
Operating mode, adjustable active, passive
Functions
none, pre-alarm, main alarm, connection fault, Alarm DC-,
Alarm DC+, symmetrical insulation fault, device error,
common alarm, measurement complete, device inactive
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
Response value Ran1 (Alarm 1)
1 kΩ…10 MΩ (40 kΩ)*
Response value Ran2 (Alarm 2)
1 kΩ…10 MΩ (10 kΩ)*
Relative uncertainty (acc. to IEC 61557-8) dependent on the profile, ± 15 %, at least 1 kΩ
Hysteresis
25 %, at least 1 kΩ
Number Operating mode
Functions
Current, voltage Tolerance
Time response
Interfaces
Response time tan at RF = 0.5 x Ran (Ran = 10 kΩ) and Ce = 1 μF acc. to IEC 61557-8
profile-dependent, typ. 4 s (see diagrams)
Startup delay Tstartup 0…120 s (0 s)*
Field bus:
Interface/protocolTelnet/HTTP
Data rate
10/100 Mbit/s, autodetect
Cable length
≤100
Connection RJ45
IP address DHCP / manual* 192.168.0.5*
Network mask 255.255.255.0*
Function service interface
Sensor bus:
Interface/protocol RS-485/BMS
Data rate
9.6 kBaud/s
Cable length
≤ 1200 m
Cable (twisted pair, shield connected to PE on one side) recommended: J-Y(St)Y min. 2 x 0.8
Connection terminals X1.A, X1.B
Terminating resistor
120 Ω, can be connected internally
Device address, BMS bus 1…90 (3)*
Response values
Measuring circuit
Measuring voltage Um Measuring current Im
Internal resistance Ri, Zi
Permissible extraneous DC voltage Ufg Permissible system leakage capacitance Ce profile-dependent, ± 10 V, ± 50 V
≤ 403 μA
≥ 124 kΩ
≤ 1200 V
profile-dependent, 0…1000 μF
Measuring ranges
Measuring range fn 10…460 Hz
Tolerance measurement of fn ± 1 % ± 0.1 Hz
Voltage range measurement of fn AC 25…690 V
Measuring range of Un (without external coupling device)
AC 25…690 V
DC 25…1000 V
Tolerance measurement of Un
±5%±5V
Measuring range Ce
0…1000 μF
Tolerance measurement of Ce
± 10 % ± 10 μF
Frequency range of Ce DC, 30…460 Hz
Min. insulation resistance measurement of Ce
depends on profile and coupling mode, typ. > 10 kΩ
6iso685-D_D00022_01_D_XXEN/11.2014
1
linear, midscale point 28 kΩ/120 kΩ
insulation value, DC shift
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)
±20 %
Technical data (continued)
Switching elements
Connection
Number of switching elements 2 changeover contact
Operating mode N/C operation*/N/O operation
Contact 11-12-14
none, prealarm, main alarm, connection fault, Alarm DC-,
Alarm DC+, symmetrical insulation fault, device error,
common alarm, measurement complete, device inactive
Contact 21-22-24
none, prealarm, main alarm, connection fault, Alarm DC-,
Alarm DC+, symmetrical insulation fault, device error,
common alarm, measurement complete, device inactive
Electrical endurance under rated operating conditions, number of cycles 10,000
Contact data acc. to IEC 60947-5-1:
Utilisation category AC-13 AC-14 DC-12 DC-12 DC-12
Rated operational voltage 230 V 230 V 24 V 110 V 220 V
Rated operational current 5 A
3 A
1 A 0.2 A 0.1 A
Rated insulation voltage ≤ 2000 m NN 250 V
Rated insulation voltage ≤ 3000 m NN 160 V
Minimum contact rating 1 mA at AC/DC ≥10 V
Connection type
pluggable screw terminal or push-wire terminal
Screw-type terminals:
Tightening torque
0,5…0,6 Nm (5…7 lb-in)
Conductor sizes AWG 24…12
Stripping length
7 mm
rigid/flexible
0.2…2.5 mm²
flexible with ferrules, with/without plastic collar
0.25…2.5 mm²
Multiple conductor, rigid
0.2…1 mm²
Multiple conductor, flexible
0.2…1.5 mm²
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 terminals:
Conductor sizes AWG 24…12
Stripping length
10 mm
rigid/flexible
0.2…2.5 mm²
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:
Conductor sizes AWG 24…16
Stripping length
10 mm
rigid/flexible
0.2…1.5 mm²
flexible with ferrule without plastic sleeve 0.25…1.5 mm²
flexible with TWIN ferrule with plastic sleeve 0.25…0.75 mm²
Environment/EMC
EMC
IEC 61326-2-4; EN 50121-3-2; EN 50121-4**
Ambient temperatures:
Operation -25…+55 °C
Transport
-40…+85 °C
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)
Transportation (IEC 60721-3-2) 2K3
Storage (IEC 60721-3-1) 1K4
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) 3M4
Transportation (IEC 60721-3-2) 2M2
Storage (IEC 60721-3-1) 1M3
Area of application ≤ 3000 m NN
Other
Operating mode continuous operation
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
Documentation number D00022
Weight ≤ 450 g
( )* = Factory setting
( )**=The serial interface (RS-485) is considered a highly-symmetrical
wire pair
iso685-D_D00022_01_D_XXEN/11.20147
BENDERGroup
iso685-D_D00022_01_D_XXEN / 11.2014 / pdf / Schw / © Bender GmbH & Co. KG, Germany – Änderungen vorbehalten! The specified standards take into account the current edition at the time of going to press.
Bender GmbH & Co. KG
P.O.Box 1161 • 35301 Grünberg • Germany
Londorfer Straße 65 • 35305 Grünberg • Germany
Tel.: +49 6401 807-0 • Fax: +49 6401 807-259
E-mail: info@bender.de • www.bender.de
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