Ald590 TGH GB (874 682B) PDF
Ald590 TGH GB (874 682B) PDF
Ald590 TGH GB (874 682B) PDF
ISOM ALD590
I n s u l at i o n Fa u l t
Rs=011kW .H
--- DLD: on---auto--
ADR: 02 k: 03 12 mA
ISOM ALD590
Insulation monitoring device for IT AC and DC systems
with integrated test generator and controller for DLD46...,
DLD47... and DLD49... systems
NT 874 682 B
SOCOMEC
1 rue de Westhouse • B.P. 10
67230 Benfeld
France
Internet : http://www.socomec.com
E-Mail : scp.spc@socomec.com
2. Function ........................................................................................... 11
2.1 General characteristics ................................................................... 11
2.2 Essential functions of the ISOM .................................................. 11
2.3 Essential functions of the Insulation fault location
system (DLD) ..................................................................................... 11
2.4 Product description ........................................................................ 12
2.5 Function .............................................................................................. 12
2.5.1 Current output for external measuring instrument ............ 13
2.5.2 Real-time clock .................................................................................. 13
2.5.3 Insulation fault location ................................................................. 14
2.5.4 Interconnected systems ................................................................ 14
2.5.5 Function input F1/F2 for connection or disconnection
of IT systems being monitored ................................................... 14
2.5.6 ISOMnet function for central control of the insulation
monitoring process when several ALD590 are
interconnected in IT systems. ...................................................... 16
2.5.7 Self test ................................................................................................ 17
2.5.8 Relay K3: device fault alarm and DLD common message . 19
2.5.9 Factory setting .................................................................................. 19
NT 874 682 B 3
Table of Contents
4. Connection ....................................................................................... 27
4 NT 874 682 B
Table of Contents
NT 874 682 B 5
Table of Contents
6 NT 874 682 B
Table of Contents
7 NT 874 682 B
1. How to use this documentation effectively
If the terminals L1, L2, L3 of the device are connected to a system under
operation, the terminals and KE must not be disconnected from the
protective conductor (PE).
NT 874 682 B 9
How to use this documentation effectively
Information you should know for correct handling of the product is mar-
ked with the "Info" symbol.
10 NT 874 682 B
2. Function
NT 874 682 B 11
Function
Test function for DLD4... systems, incl. the connected measuring current
transfor.
2.5 Function
The ALD590 ISOM is connected between the unearthed system and the pro-
tective conductor (PE).
The response values and other function parameters are set via the function
keys. The parameters are indicated on the LC display and are stored in a non-
volatile memory (EEPROM) after the setting is completed.
A microprocessor-controlled pulsating AC measuring voltage is superim-
posed on the system ( measuring principle*). The measuring cycle
consists of positive and negative pulses of the same amplitude. The period
depends on the respective system leakage capacitances and the insulation re-
sistance of the system to be monitored. An insulation fault between system
and earth closes the measuring circuit. From the measured current value, the
microprocessor calculates the insulation resistance which is indicated on the
LC display or the external kΩ measuring instrument.
12 NT 874 682 B
Function
associated alarm relays respond and the alarm LEDs "ALARM1/2" light up
and the measuring value is indicated on the LC display (in the event of DC
insulation faults, the faulty supply line is indicated). The fault indication can
be stored by bridging the terminals R1/R2 (external RESET button [NC con-
tact]) or by setting the fault memory to "Memory:on" in the "ISOM SETUP"
menu.
Pressing the external or internal RESET button, resets the fault message, pro-
vided that the insulation resistance is at least 25 % above the preset value.
NT 874 682 B 13
Function
14 NT 874 682 B
Function
Adr. 1 Adr. 2
F1/F2 AL590 F1/F2 AL590
PE PE
G G
IT-System 1 IT-System 2
G G
IT-System 4 IT-System 3
Adr. 4 Adr. 3
AL590 AL590
F1/F2 F1/F2
PE PE
Example:
Let as assume, in the before-mentioned ring-type arrangement, the associa-
ted coupling switch of the Slave ISOM 2 were open. The coupling switches
of the ISOM bus Master (Addr. 1) and of the Slaves 3 and 4 were closed. In
this case the ISOM and DLD functions of the Master and the Slaves 3 and 4
would be deactivated. In spite of changing to the STANDBY mode, the Mas-
ter status of the device with address 1 would remain. That means, if a para-
meterization is necessary, it has to be carried out via the ALD590 with ISOM
bus address 1.
NT 874 682 B 15
Function
2.5.6 ISOMnet function for central control of the insulation monitoring process
when several ALD590 are interconnected in IT systems.
Up to 32 ISOM can communicate with each other in an ISOMnet network.
The ISOMnet network can only be activated when a ISOM bus is used for
interconnection. A typical method with four devices is shown as an example.
The ISOMnet function of all ISOM in the ISOMnet network must be activated
in the COM SETUP „ISOMnet=ON“ menu, refer to page 61.
The ISOM bus master (ISOM bus address 1) with activated ISOMnet function
controls the ISOMnet slave devices via the ISOM bus. When the master ISOM
has finished one measuring cycle, the authorization for insulation monitoring
is passed on to the next higher ISOM bus address. This authorization is re-
turned by the slave with the highest ISOM bus address to the ISOM bus mas-
ter after a cycle has been completed.
During the insulation monitoring process, all other ISOM, are in the STAN-
DBY mode. In this way it is prevented that ISOMs influence each other in
interconnected IT systems.
At f = 50Hz and Ce = 1µF, an ISOMnet device stays in the measuring mode
for 12s and then changes to the STANDBY mode. The maximum response
time of the ISOMnet device that made the last measurement, will be exten-
ded by the number of devices x 12s, in our example 48s.
When an insulation fault is detected by an ISOM, the insulation fault location
process is started. The device stays in the measuring mode during this time.
Only after completion of insulation fault location, the ISOMnet device stops
the monitoring mode and passes the authorization for insulation monitoring
on to the next device.
In the STANDBY mode, the ISOMnet device displays the last measured insu-
lation resistance.
Each ISOMnet slave checks the network for an ISOMnet master. If there is
no master available, the display will show the fault message
„ISOMnet Master?“ With the ISOMnet function activated, the function input
F1/F2 is automatically deactivated.
All DLD devices in the IT systems being monitored must be operated with
activated fault memory.
In comparison to a solution with coupling switches and function input F1/
F2, the response time will be extended because the measurement is not per-
16 NT 874 682 B
Function
Addr. 1 Addr. 2
AL590 AL590
PE PE
G G
IT-System 1 IT-System 2
G G
IT-System 4 IT-System 3
Addr. 4 Addr. 3
AL590 AL590
PE PE
This has the advantage that no auxiliary contacts of a coupling switch are
required. Furthermore, this solution is recommended for IT systems coupled
via capacitances or diodes.
NT 874 682 B 17
Function
During operation, the self test function can be started by pressing the TEST
button (internal or external) or automatically every hour or every 24 hours
by selecting "ISOM ADVANCED": Autotest:" in the menu. The alarm relays
ALARM 1/2 can only switch after starting the self test function by pressing
the TEST button, that means if an automatic self test has been selected, the
alarm relays do not switch.
If the on/off switching of the supply voltage is not possible for technical
reasons, a RESET of the device can be carried out by pressing the "ESC",
"RESET" and "MENU" key simultaneously
18 NT 874 682 B
Function
2.5.8 Relay K3: device fault alarm and DLD common message
Relay K3 is intended to signal device and connection errors of the
ISOM. In the Master mode with bus address 1, DLD alarm messages can be
collectively indicated by the K3 relay as well as system fault messages. Col-
lective indication of the DLD alarms by K3 can be disabled by selecting „K3
Alarm: off“ from the "DLD Setup" menu. Refer to page 50.
Please check if the basic setting of the ISOM complies with the requirements
of the system to be monitored.
NT 874 682 B 19
Function
20 NT 874 682 B
3. Commissioning flow chart
NT 874 682 B 21
Commissioning flow chart
Time setting
Refer to the chapter
"Operation and Setting"
Shall the basic setting Enter the new values in the
be maintained ? no ISOM-SETUP menu
yes
yes
Remove resistance
no
Alarm LEDs extinguished ?
Did the alarm relays respond ?
22 NT 874 682 B
Commissioning flow chart
DLD470
NT 874 682 B 23
Commissioning flow chart
Are all bus nodes available after Check the wiring and bus nodes
the completion of the test ? no
(RS485 LED)
yes
24 NT 874 682 B
Commissioning flow chart
NT 874 682 B 25
Commissioning flow chart
26 NT 874 682 B
4. Connection
Connect the terminals A1/+ and A2/- to the supply voltage US in accordance
with IEC 60364-4-43. The connections to the supply voltage shall be provi-
ded with protective devices to afford protection in the event of a short-circuit
(a 2 A gG fuse is recommended).
Only one ISOM may be connected to an external TEST or RESET button. The
TEST and RESET inputs of different insulation monitoring devices must not
be connected in parallel for collective testing.
NT 874 682 B 27
Connection
1 2 3 4
mA
5 6 7 8 9
RS485
ON
M+ M- T1 T2 R1 R2 F1 F2 A B 31 32 34 21 22 24 11 12 14
OFF
S2 S1
ALD590 K3 K2 K1
A1/+ A2/- L1 L2 L3 KE
L1 L2 L3
2 A gG 3(N) AC-System Un PE
L1
L2
L3 14
N
10 11
L1 L2 L3
AC-System
L1
Un
L2
12
L1 L2 L3
DC-System
L+
Un
L- 13
28 NT 874 682 B
Connection
4 STANDBY
When the contact is closed, insulation measurement does not take place;
system disconnection
7 System fault relay K3 (device fault and DLD Alarm) (Addr.: 1);
N/C operation (fixed setting)
NT 874 682 B 29
Connection
30 NT 874 682 B
5. Operation and setting
Insulation fault
Rs=011kW
--- DLD: on---auto---
ADR: 02 k: 03 12 mA
1 2 3 4 5 6
NT 874 682 B 31
Operation and setting
Insulation Fa u l t 8
1
Rs=011kW . H 7
2 --DLD:on---auto--- 6
ADR:02 k03 12mA
3 4 5
32 NT 874 682 B
Operation and setting
NT 874 682 B 33
Operation and setting
For controlling the menu system, the Up/Down keys, the ENTER key and the
ESC key are used:
Up key:
Moving up in the menu, increasing a parameter
Down key:
Moving down in the menu, decreasing a parameter
ENTER key:
Selecting a menu item or sub menu item, confirming or storing a
parameter change and going back to the associated sub menu
item or going to the next input area.
ESC key:
to return to the previous menu.
If the menu has not been closed, the device returns to the display
mode again after approximately 5 minutes.
For the sake of clarity, the following symbols are used for the functions EN-
TER, UP/DOWN and ESCAPE in the menu diagrams of this operating ma-
nual:
ESC
34 NT 874 682 B
Operation and setting
NT 874 682 B 35
Operation and setting
****IT-SYSTEM****
R >010 MW
- DLD: off -- auto --
MENU
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
ESC 6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
Menu
ESC item
1 ... 7
PASSWORD SERVICE
COM SETUP LANGUAGE
1. EXIT 1. EXIT
2. Addr: 001 2. Text: english
3. ISOM Monitor
36 NT 874 682 B
Operation and setting
****IT-SYSTEM****
R >010 MW
- DLD: off -- auto --
MENU
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
ESC 6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
Menu
item
8 ... 11 ESC
NT 874 682 B 37
Operation and setting
Before storing the events with the actual date and time stamp, set the
real-time clock in the ISOM ADVANCED menu (refer page 45).
The following function keys are provided to query data from the "HISTORY
INFO" menu: the UP/DOWN keys to change the data record number, the EN-
TER key to change from the data record number to the menu item "Clear
all:on" to delete the memory storage, and the ESC key to leave the menu.
A new entry into the memory is signalled with an "H" on the display in the
standard mode. The "H" will be deleted as soon as the "HISTORY INFO"
menu is called up.
38 NT 874 682 B
Operation and setting
****IT-SYSTEM****
R >010 MW
- DLD: off -- auto --
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
Nr.: 01 #Nr: 08
ESC
Power on
01.01.06 16:12
Clear all: off
Nr.: 02 #Nr: 08
Rmin: 010kW Clear all: off Clear all: on
01.01.02 17:26
Clear all: off
Nr.: 03 #Nr: 08
Alarm1: 004kW Clear all: off Clear all: on
03.01.06 10:33
Clear all: off
NT 874 682 B 39
Operation and setting
5.4.2 Starting the DLD system via the response values ALARM 1and ALARM 2
The DLD system is started when the value of the insulation resistance falls
below the lowest preset response value, i.e. below both alarm values.
When setting the ISOM response values, make sure that the lower value of
them is within a range which the DLD system is able to find. Therefore it is
recommended to set the ISOM response value according to the response cha-
racteristic curves of the DLD system (Refer to page 82).
K1: N.C Test = N/C operation contacts 11-12-14, with relay test
(the alarm relay is energized during normal operation)
K1: N.O Test = N/O operation contacts 11-12-14, with relay test
(the alarm relay is deenergized during normal operation)
K1: N.C = N/C operation contacts 11-12-14, without relay test
(the alarm relay is energized during normal operation)
K1: N.O = N/O operation contacts 11-12-14, without relay test
(the alarm relay is deenergized during normal operation)
K1: Flash = Flashing function contacts 11-12-14
(the alarm relay and the LED flash in the event of an alarm
message, approximately 0.5 Hz
40 NT 874 682 B
Operation and setting
****IT-SYSTEM****
R >010 MW
- DLD: off -- auto --
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
1. Exit
2. AL1: 40 KW Alarm1 : 40 KW
3. AL2: 10 KW
4. K1 : N.O 001 KW
.
5. K2 : N.O .
6. Memory: off 10 MW
7. M+/M-: 0-20 mA Alarm2 : 10 KW
Memory: off
Memory: on
Memory: off
M+/M-: 0-20 mA
M+/M-: 0-20 mA
M+/M-: 4-20 mA
NT 874 682 B 41
Operation and setting
K2: N.C Test = N/C operation contacts 21-22-24, with relay test
(the alarm relay is energized during normal operation)
K2: N.O Test = N/O operation contacts 21-22-24, with relay test
(the alarm relay is deenergized during normal operation)
K2 : N.C = N/C operation contacts 21-22-24, without relay test
(the alarm relay is energized during normal operation)
K2 : N.O = N/O operation contacts 21-22-24, without relay test
(the alarm relay is deenergized during normal operation)
K2 : Flash = Flashing function contacts 21-22-24
(the alarm relay and the LED flash in the event of an alarm
message, approximately 0.5 Hz)
In the ISOM SETUP menu the memory behaviour of the ALD590 can be
set. This setting does not have an effect on the memory behaviour of
the connected DLD devices, these settings must be carried out in the
DLD460/490 and DLD470 menu.
42 NT 874 682 B
Operation and setting
NT 874 682 B 43
Operation and setting
5.5.4 Setting the repetition time for automatic self tests (Autotest: 24h)
The time for the repetition of automatic self tests can either be set to 1 hour
or to 24 hours or can be deactivated. Factory setting = 24 h
5.5.7 Specifying the starting time of the automatic self test (Test)
If the 24h self test is activated in the ISOM ADVANCED menu, it is possible
to set the time (hour) when the self test is to be carried out by means of the
"TEST: 12:00" sub menu. Then the self test is automatically carried out once
a day at a given time. If the 1 hour auto test has been selected, the self test
will be carried out at every full hour.
44 NT 874 682 B
Operation and setting
****IT-SYSTEM****
R > 010 MW
- DLD: off -- auto --
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
1. Exit
2. P: no
3. Ce max : 150µF Ce max : 150µF
4. Measure: AMP
Ce max : 150µF
5. Autotest: 24h
Ce max : 500µF
6. Clock: 21:09
7. Date: 01.01.01
Measure: AMP
8. Test: 12:00 DC
AMP
24h
no
01h
Autotest: 24h
Clock: 21:09
Date: 01.01.01
Test: 12:00
Test: 00:00
.
.
.
Test: 23:00
NT 874 682 B 45
Operation and setting
46 NT 874 682 B
Operation and setting
****IT-SYSTEM****
R > 010 MW
- DLD: off -- auto --
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
1. Exit
2. DLD: auto DLD : auto
3. System: 3AC auto
4. MaxPuls: 025mA on
off
pos470
1cycle
System: 3AC
3AC
AC
DC
POSITION SETUP
MaxPuls: 025mA ADR: 002 k: 001
1 mA no DLD/ 15mA/
2,5 mA >1A/ >10A
10 mA
25 mA
50 mA
NT 874 682 B 47
Operation and setting
1cycle
DLD47... :
As soon as the insulation resistance has fallen below the ISOM response
values ALARM 1 and 2, the DLD system is automatically activated. It remains
active until every DLD4...-12 has measured all channels once and when the
test current during the measurements is above 5 mA (DLD470) or 0.5 mA
(DLD204-12).
DLD46... / 49... :
As soon as the insulation resistance has fallen below the ISOM response
values ALARM 1 and 2, the DLD system is automatically activated. It remains
active for approximately 5 minutes when the test current during the measu-
rement is above 2 mA (DLD470) or 0.2 mA (DLD204-12).
auto
As soon as the insulation resistance has fallen below the ISOM response
values ALARM 1 and 2, the DLD system is automatically activated and remains
activated as long as the test current is above 5 mA (0.5 mA). The DLD insula-
tion fault location process is cyclically interrupted for approximately 5 minu-
tes (factory setting), i.e. for the time the ISOM is carrying out insulation fault
measurements.
5.6.3 System DC / 1 AC / 3 AC
The type of the system to be monitored are to be selected from this sub me-
nu:
DC= DC system
1 AC= single phase AC system
3 AC= three-phase AC system
Factory setting is 3AC!
48 NT 874 682 B
Operation and setting
5.6.5 K3 alarm: ON
The K3 relay can be used either for one or for two functions. It is always
used for signalling ALD590 device errors.
K3 alarm: on
= K3 signals additionally occurring DLD alarms as common alarm.
Please note that this function is only active in the master mode
(ISOM bus address 1 = factory setting).
K3 alarm: off
= K3 only signals ALD590 device
Detailed information about the function is given on page 19 and page 17
NT 874 682 B 49
Operation and setting
5.7.1 General
The following parameters have an effect on that device the ISOM bus ad-
dress of which is being displayed. Set the address in order to select the ap-
propriate device.
Memory
Use this menu option to switch the fault memory of the selected DLD46... /
DLD49... on or off. Factory setting = off.
Trigger
Use this parameter to specify whether the fault location of DLD46... /
DLD49... is to be started by an ALD590 (Com) or if automatically and conti-
nuously all measuring channels are measured in parallel (Auto). Factory set-
ting = Com.
N. freq
Use this menu option to select the nominal frequency of the system to be
monitored. You may select 50, 60 or 400 Hz. Factory setting = 50 Hz.
System
Use this menu option to select the type of the distribution system to be mo-
nitored. You may select:
DC= DC system
AC= single-phase AC system
3 AC= three-phase AC system
Factory setting = AC.
5.7.2 Channel
The following parameters have an effect on the device the ISOM bus address
and measuring channel of which is being displayed. Set the respective ad-
dress and channel in order to select the appropriate device.
50 NT 874 682 B
Operation and setting
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
1. Exit
2. General
3. Channel
4. Relay: N/O
5. Test/Reset
ADR: 2...90 Sw: V1.02
1. Exit
2. Memory: off on Memory: on
off
3. Trigger: Com
4. N.freq.: 50 Hz Com Trigger: Auto
see 5. System: AC Auto
next
page
DC N.freq.: 60 Hz
50 Hz
60 Hz
400 Hz
AC Systeme: 3AC
DC
3AC
2...
ResVal: 0005 mA
10mA
W/WR
WS CT: off
ADR: 2...90 CH: 1...12 P52
1. Exit P165
2. ResVal: 0004 mA P20
3. CT: W/WR off 00 s
4. T(on) :00 s 06 s T(on) : 12 s
12 s
5. T(off) :06 s 18 s T(off) : 18 s
6. CTmonitor: on 24 s
7. Inverter: off on
8. Op. mode: N/O CTmonitor: off
off
on Inverter: on
off
NT 874 682 B 51
Operation and setting
ResVal
Use this menu option to set the response values of the DLD device to be pa-
rameterized. This applies to:
DLD460 / DLD490: 2...10 mA in 1 mA steps, factory setting = 5 mA
DLD260 / DLD290: 200...1000 μA in 1 μA steps, factory setting. = 500 μA
CT: W/WR
Select the measuring current transformer type to be used from the list below:
W/WR=circular or rectangular measuring current transformer = factory set-
ting
WS=split-core current transformer
off=channel switched off
T(on)
Use this menu option to set a response delay of 0...24 s for the selected
DLD4... Factory setting = 0 s.
T(off)
Use this menu option to set a delay on release of 0...24 s for the DLD4...;
Factory setting = 6 s.
CT monitor
To enable or disable the CT monitoring. That enables the DLD... to check the
proper connection of the respective measuring current transformer. After the
test, this will be indicated on the display as described in "chapter 5.7.4 DLD
Test". Faults are indicated by the "Alarm 1“ LED. In position "off“, this func-
tion is deactivated.
Factory setting = on.
Inverter
Use this menu option to adapt a selected channel of the DLD46... /49... to a
circuit comprising a frequency converter; Factory setting. = off.
Op.mode
Use this menu option to determine the operating mode of the 12 channel-
related alarm relays of an DLD490 / DLD290; Factory setting = N/O.
5.7.3 Relay
Use this menu to set the parameters for common alarm and system fault
alarm at the relays of DLD46... and DLD49. The following parameters have
an effect on that device the ISOM bus address and the associated alarm relay
52 NT 874 682 B
Operation and setting
of which are being displayed. Set the address and the respective relay /1,2)
in order to select the appropriate device.
Op.mode
Use this menu option to set the operating mode of the common relays for
alarm 1 and alarm 2. Factory setting: Relay 1 = N/O, Relay 2 = N/C.
ALARM
Use this menu option to assign an occurring DLD alarm to one or both DLD
alarm relays. Factory setting for Relay 1/2 = on.
Dev. Error
Use this menu option to assign an occurring DLD device fault alarm to one
or both DLD alarm relays. Factory setting. Relay 1 = off, Relay 2 = on.
In case of fault the following fault messages appear on the display of the
ALD590:
no CT (measuring current transformer not connected)
short (measuring current transformer short-circuited)
AC residual> 1 A (DLD260/DLD290)
AC residual> 10 A (DLD460 /DLD490)
NT 874 682 B 53
Operation and setting
6. DLD 460/490
7. DLD 470
8. COM SETUP
1. Exit
2. General see previous page
3. Channel
4. Relay: N/O
5. Test/Reset
N/C
ADR: 2...90 Relay: 1...2 N/O Op. mode: N/C
1. Exit
2. Op. mode: N/O
3. Alarm: off on Alarm: on
off
4. Sys. fault: on
1. Exit
2. DLD Test: off on DLD Test: on busy .... 16 s
off
3. DLD Reset: off
on DLD-Reset: on
off
54 NT 874 682 B
Operation and setting
5.8.4 Details about the menu points Relay, Memory and n-peak
The parameters indicated on the ALD590 display do not necessarily corres-
pond to the DLD47... settings. Only when a control command is sent to DLD
by pressing Return, the DLD settings of DLD47... correspond to the ALD590
indication.
NT 874 682 B 55
Operation and setting
****DLD-Monitor****
Nr.: 01 #Nr.: 02
1. Exit ADR: 03 k12 20mA
2. DLD Monitor *********************
3. DLD Test: off
4. DLD Reset: off Nr: 01
5. Relay: N/O
6. Memory: on 01...50
7. CT Setup
8. n-peak: 1...255
9. K3 Alarm: on
DLD-Test: off
****CT-SETUP****
ADR: 2....90 k: 1....12
DLD-Test: on
Typ: standard/split /off on
conn.-CT: on/off off
busy .... 16 s
K3 Alarm: on
on ADR: XXX k: XX TEST
off DLD470-12 V2.10
CT:noCT Mem: off
peak: 255 Rel: N/O
56 NT 874 682 B
Operation and setting
5.8.6 Relay
Operating principle of the alarm relays of DLD47...:
N.C = N/C operation
N.O = N/O operation = factory setting
5.8.7 Memory
Setting of the memory behaviour of DLD47...
The factory setting is „on“.
When the memory is in "on" position, the alarms of an DLD47... are maintai-
ned until a RESET is carried out via the menu (ALD590) or the RESET key is
pressed on the DLD47....
When the memory if in "off" position, the alarm stored in the DLD47... will be
deleted when the next scanning is carried out, provided that no insulation
fault exists and no insulation fault location process is running.
5.8.8 CT Setup:
Setting of the CT type and connection monitoring for DLD47...:
ADR:
Setting the ISOM bus address of an DLD47... that is to be configured.
k:
Setting the ISOM bus channel that is to be configured.
Note:
When ADR:2-90 and k:1-12 are selected, the same CT type will be set for every
channel of every device address.
Type:
– standard = measuring current transformers of circular and rectangular type
= factory setting
– split = split-core measuring current transformers
– off = channel switched off
conn.-CT
On or off switching of the CT monitoring Factory setting is „on“.
The CT connection monitoring of the DLD4...-12 recognizes whether a
measuring current transformer is correctly connected. This will be indicated
on the display after a test has been carried out as described in "chapter 5.8.2
DLD Test". In "off position" this function is deactivated.
NT 874 682 B 57
Operation and setting
5.8.9 n-peak:
n-peak: 1-255
Setting of the maximum automatic elongation of the measuring time of the
connected DLD47... if disturbances are likely to occur in the system being
monitored. By default, four measurements are carried out per channel before
the DLD47... proceeds to the next channel.
If disturbances occur during the measurement due to system interferences
( signalled by the "Fault"-LED at DLD47...), the number of measurements per
channel will automatically be increased by the preset number n, that means
4 + n measurements per channel are carried out in this case. The n-times
elongation of the measuring time per channel will automatically be stopped,
when the fault is eliminated.
Factory setting is n = 5.
The functions of the DLD470 menu and the position mode in the DLD
SETUP menu is not available in the Slave mode!
Both functions are only available in the Master mode (address 1).
58 NT 874 682 B
Operation and setting
If several ALD590 are operated on one ISOM bus, the addresses of other
ISOMs must be assigned one after the other, since only one device may
represent the Master.
! ! ! ! N O D ATA ! ! ! !
No data found: R= A D R: 02
I n s u l at i o n Fa u l t
Current data address 03: R= 010K W A D R: 03
NT 874 682 B 59
Operation and setting
5.9.3 ISOMnet
Use this menu item to activate the ISOMnet function of an ALD590. Refer to
page 16 for an ISOMnet description.
****IT-SYSTEM****
R > 010 MW
- DLD: off -- auto --
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
1. Exit
2. Addr: XXX Addr: XXX
3. ISOM Monitor ADR: 001
.
.
.
ADR: 030
****IT-SYSTEM****
R >123 kW ADR: 01
60 NT 874 682 B
Operation and setting
The desired password (menu item 2. Password: xxx) can be set with the UP/
DOWN keys and confirmed with the ENTER key.
The password can be activated in the menu item "3. Status: on" by clicking
the ENTER key. The factory setting is "3. Status: off", that means that the pas-
sword is deactivated.
****IT-SYSTEM****
R >010 MW
- DLD: off -- auto --
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
1. Exit
2. Password: XXX Password: XXX
3. Status: off 000
.
.
.
999
Status : off
off
on
NT 874 682 B 61
Operation and setting
****IT-SYSTEM****
R > 010 MW
- DLD: off -- auto --
******************
1. EXIT
2. HISTORY INFO
3. ISOM SETUP
4. ISOM ADVANCED
5. DLD SETUP
6. DLD 460/490
7. DLD 470
8. COM SETUP
9. PASSWORD
10. LANGUAGE
11. SERVICE
1. Exit
2. Text: English Text: English
Deutsch
English
62 NT 874 682 B
Operation and setting
NT 874 682 B 63
Operation and setting
64 NT 874 682 B
6. Serial interfaces
NT 874 682 B 65
Serial interfaces
6.2.3 Wiring
A suitable type of cable for the wiring of the RS485 network is:
screened cable, core diameter ≥ 0.6 mm
(e.g. J-Y(ST)Y 2x0.6), screen on one side connected to earth (PE).
Connection to the terminals A and B.
The number of bus nodes is restricted to 32 devices. When more devices are
to be connected, Socomec recommends to use an RS485 repeater.
33 64
1 32
DI1
66 NT 874 682 B
Serial interfaces
Fa u l t R S 4 8 5
Rs=011kW . H
--DLD:on---auto---
******************
NT 874 682 B 67
Serial interfaces
6.3.2 ISOM-Slave
In a ISOM network for each slave an individual address between 2 and 30
slave has to be selected. There may be no gaps of more than five subse-
quent addresses, so that all slaves can be scanned by the Master. For
ALD590 a ISOM address can be selected from the address range 1 ... 30.
When assigning the addresses, also other devices such as the DLD4... must
be considered.
The correct reception of ISOM data is indicated by a flashing point on the
display on the right of the measuring pulse indication.
Fa u l t R S 4 8 5
Rs=011kW . H Flashing point:
--DLD:on---auto--- ISOM data received
******************
If no flashing point appears, it may be attributed to the following:
no Master available in the network
more than one Master available in the network
RS485 interface (terminal A/B) not connected or reversed
In the Slave mode, the functions of the DLD470 menu and the posi-
tion mode in the DLD SETUP menu are not available! Both functions
are only available in the Master mode.
68 NT 874 682 B
Serial interfaces
The following table gives an overview about essential alarm messages and
the assignment of the messages indicated on the display.
NT 874 682 B 69
Serial interfaces
Un: 3(N)AC, AC
L1
L2
L3
N
PE
measuring
current
Us transformer
see name plate
to the
load
F
F 2A gG
2A gG
A1 A2 L1 L2 L3 A1 A2 k1 l k2
ALD590 DLD460-12
KE A B A B
PE
70 NT 874 682 B
Serial interfaces
The following operating manuals are available when using the ALD590 in
combination with DLD systems for other applications:
Manual NT 521 248 DLD470 application:
power supply systems, extended systems, systems with frequency conver-
ters, response sensitivity of at least 5 mA
Manual NT 874 590 DLD204a pplication:
control systems, small systems, systems with PLC, response sensitivity
at least 0.5 mA
Manual NT 874 636 DLD460 /DLD490, Application:
power supply systems, extended systems, systems with frequency conver-
ters, response sensitivity of at least 5 mA
for DLD260 /DLD290, Application:
control systems, small systems, systems with PLC, response sensitivity
at least 0.5 mA
NT 874 682 B 71
Serial interfaces
* When assigning addresses, take care that there are no gaps greater
than five in the respective ranges (1...30, 31...60, 61...90, 111...119
and 121...151
72 NT 874 682 B
7. Technical data ALD590
ALD590:
Nominal voltage range Un ................................................................................... AC, 3(N)AC 20...575 V*
Nominal frequency fn (for f < 50 Hz see characteristic curve on page 77) .......................... 50...460 Hz
Nominal voltage range Un .................................................................................................. DC 20...575 V*
ALD590:
Nominal voltage range Un ................................................................................ AC, 3(N)AC 340...760 V*
Nominal frequency fn (for f < 50 Hz see characteristic curve on page 77) .......................... 50...460 Hz
Nominal voltage range Un ................................................................................................ DC 340...575 V*
Supply voltage Us (see name plate)............................................................... AC 40...460 Hz 88...264 V*
Frequency range Us ................................................................................................................. 40...460 Hz
Supply voltage Us (see name plate .................................................................................... DC 77...286 V*
Power consumption ...................................................................................................................... ≤ 14 VA
Response values
Response value Ran1 (Alarm1) ........................................................................................... 1 kΩ...10 MΩ
Response value Ran2 (Alarm2) ........................................................................................... 1 kΩ...10 MΩ
Absolute error (1 kΩ...10 kΩ) ...................................................................................................... +2 kΩ
Relative percentage error (10 kΩ...10 MΩ)........................................................................ 0 %...+20 %
Measuring time.................................................................................................... see characteristic curves
Hysteresis (1 kΩ...10 kΩ) ............................................................................................................. +2 kΩ
Hysteresis (10 kΩ...10 MΩ)............................................................................................................. 25 %
Measuring circuit for insulation measurement
Measuring voltage Um .................................................................................................................... ≤ 40 V
Measuring voltage Um ()................................................................................................................. ≤ 10 V
Measuring current Im (at RF = 0Ω) ........................................................................................... ≤ 220 µA
Internal DC resistance DC Ri ....................................................................................................... ≥ 180 kΩ
NT 874 682 B 73
Technical data ALD590
74 NT 874 682 B
Technical data ALD590
NT 874 682 B 75
Technical data ALD590
- IEC 61557-8:1997-02
- EN 61557-8:1997-03
- IEC 61557-9:1999-09
- EN 61557-9:1999-11
- EN 61326
- DIN EN 60664-1 (VDE 0110-1):2003-11
- DIN EN 60664-3 (VDE 0110-3):2003-09
- ASTM F1669M-96(2002)
76 NT 874 682 B
Technical data ALD590
RF
100
≥ 0 kΩ
10
1
1 10 100 1000
Ce [μF]
Max. AC voltage between system and earth in the frequency range < 50 Hz
Un [V]
1000 ALD590
760 V
ALD590
575 V
100
0,1 0,3 1 10 100
fn [Hz]
NT 874 682 B 77
Technical data ALD590
RF [kW]
10 000
1000
100
10
1
0 5 10 15 20 25
I [mA]
20 mA x 120 kW
RF = - 120 kW
I
RF = Insulation fault in kΩ
I = Current output in mA
78 NT 874 682 B
Technical data ALD590
RF [kW]
10 000
1000
100
10
1
0 5 10 15 20 25
I [mA]
16 mA x 120 kW
RF = - 120 kW
I - 4 mA
RF = Insulation fault in kΩ
I = Current output in mA
NT 874 682 B 79
Technical data ALD590
RF [kΩ]
100
90
80
70
2 mA
60 5 mA
10 mA
50
40
30
20
10
0
24 48 110 230 400
Un [V]
250
200
2 mA
150 5 mA
10 mA
100
50
0
24 48 110 230 400 500 690
Un [V]
80 NT 874 682 B
Technical data ALD590
RF [kΩ]
60
50
40
30
2 mA
5 mA
20 10 mA
10
0
24 48 110 230
Un [V]
NT 874 682 B 81
Technical data ALD590
7.3.3 Characteristic curves for the insulation fault location system DLD470
30
AC
RF 25
3AC
(kW) 20
DC
15
10
5
0
24 48 110 230 U n (V)
Curve 1a:
Allowable response values in relation to the system voltage to be monitored
for a maximum system leakage capacitance Ce as shown by curve 2a
In order to start automatic insulation fault location, the resistance values to
be selected for ALARM 1 and ALARM 2 must be sufficiently low at a given
nominal voltage. Otherwise, the DLD test current is not sufficient to localise
the insulation fault. Determine the suitable values by means of the characte-
ristic curves.
90
80
70
60
AC
RF 50
3AC
(kW) 40
DC
30
20
10
0
U n (V)
230 400 500 690 1000
Curve 1b:
Allowable response values in relation to the system voltage to be monitored
for a maximum system leakage capacitance Ce as shown in curve 2b.
82 NT 874 682 B
Technical data ALD590
Maximum system leakage capacitances for the insulation fault location system
DLD470
100
90
80
70
60 AC
Ce
50 3AC
(µF) 40 DC
30
20
10
0
24 48 110 230 U n (V)
Curve 2a:
Maximum allowable system leakage capacitance in relation to the system vol-
tage to be monitored. Up to this limiting value of the system leakage capaci-
tance, the DLD system has the sensitivity illustrated in curve 1a.
5
4,5
4
3,5
3 AC
C e 2,5 3AC
(µF) 2 DC
1,5
1
0,5
0
230 400 500 690 1000 U n (V)
Curve 2b:
Maximum allowable system leakage capacitance in relation to the system vol-
tage to be monitored. Up to this limiting value of the system leakage capaci-
tance, the DLD470 system has the sensitivity shown in curve 1b.
NT 874 682 B 83
Technical data ALD590
120
100
80
R F max
(%)
60
40
20
84 NT 874 682 B
Technical data ALD590
700
600
500
400
RF (k)
AC
DC
300
200
100
0
0 50 100 150 200 250 300 350
Un (V)
Curve 4:
Allowable response values in relation to the system voltage to be monitored
at a maximum system leakage capacitance Ce as shown by curve 5.
DC: set a test current of 1 or 2.5 mA.
AC: set a test current of 2.5 mA.
NT 874 682 B 85
Technical data ALD590
Maximum system leakage capacitances for the insulation fault location system
DLD204
5
Ce (μF)
AC
4
DC
0
0 100 200 300 400
Un (V)
Curve 5:
Maximum allowable system leakage capacitance in relation to the system vol-
tage to be monitored.
DC: the test current is to be set to 1 or 2.5.
AC: the test current is to be set to 2.5 mA.
86 NT 874 682 B
Technical data ALD590
120
100
80
RF max
60
40
20
0
0 0,5 1 1,5 2 2,5 3 3,5
x Ce max
Curve 6:
When the system leakage capacitances are greater than the maximum per-
missible value for Ce, as shown in curve 5, the response sensitivity decreases.
The indication of the test current on the ALD590 display in case of high sys-
tem leakage capacitance also changes.
When considering the curves, a point to be taken into account is that the sum
of the pre-capacitances upstream of the individual measuring current trans-
former must amount to at least 50 % of the maximum total capacitance. Othe-
rwise, it may result in wrong alarm messages.
A value of 300μFV/230V = 1.3 μF is taken to be the maximum system leakage
capacitance value. When the limiting value is exceeded, false tripping may
occur.
NT 874 682 B 87
88
Value of the respective number
Position of
numbers
0= 1= 2= 3= 4=
from the
Status number
left
1 K1: N/O operation Test K1: N/C operation Test K1: flashing function K1: N/O operation K1: N/C operation
2 K2: N/O operation Test K2: N/C operation Test K2: flashing function K2: N/O operation K2: N/C operation
3 no external coupling
4 Cemax 1 µF ** Cemax 10 µF ** Cemax 150 µF Cemax 500 µF
5
6 Self test every 24 hours Self test every hour no periodic self test
NT 874 682 B
Technical data ALD590
2...10 mm
96
144 mm 21 133 mm 9
NT 874 682 B 89
Technical data ALD590
Device with ending "W" provide improved shock and vibration resistance. A
special varnish of the electronics provides higher resistance against mecha-
nical stress and moisture. This makes the devices suitable for use in ships,
on rolling stock and in seismic environment.
90 NT 874 682 B
Technical data ALD590
There will only be a label in this field if the ISOM is different from the stan-
dard version.
NT 874 682 B 91
Technical data ALD590
92 NT 874 682 B
SOCOMEC
1 rue de Westhouse • B.P. 10
67230 Benfeld
France
Internet : http://www.socomec.com
E-Mail : scp.spc@socomec.com