DEHN + SÖHNE DEHNrecord DRC SCM XT User manual

Operating Manual
DEHNrecord DRC SCM XT
DEHN + SÖHNE
Issued by : DEHN + SÖHNE GmbH + Co. KG.
BA 1818 / V 1.001 – Update 01/13 / Id.-No. 067335
© 2012 DEHN + SÖHNE / protected by ISO 16016

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Note:
The information provided in the present document may be modified without advance notice. DEHN
+ SÖHNE GmbH + Co.KG. cannot be held liable for any changes made.
Index
1. Terms and Definitions ......................................................................................3
2. Literature / References.....................................................................................3
3. Application .......................................................................................................4
4. LifeCheck® .......................................................................................................4
5. Device Description ...........................................................................................5
6. Design/Configuration .......................................................................................9
7. Wiring.............................................................................................................10
7.1 Power supply..................................................................................................................10
7.2 Remote signalling contact..............................................................................................10
8. Configuration .................................................................................................11
8.1 Number of SPDs to be monitored...................................................................................11
8.2 Device address/Group No...............................................................................................11
9. Programming of SPDs.....................................................................................12
9.1 Direct programming at the DRC SCM XT monitoring device .........................................12
9.2 Offline programming by DRC LC M3+ handheld reader.................................................15
10. Commissioning of DRC SCM XT.....................................................................17
11. Monitoring Status .........................................................................................18
12. Maintenance at Monitoring Status Replace SPD ..........................................19
12.1 On-site determination by pushbutton function at the DRC SCM XT..............................19
12.2 Offline determination by handheld reader DRC LC M3+...............................................20
13. Other Functions of the DRC SCM XT .............................................................22
13.1 Abort during an ongoing test cycle ................................................................................22
13.2 Restore of factory setting / of status when delivered .....................................................22
13.3 Resetting of SPDs...........................................................................................................23
14. Technical Data................................................................................................25
15. Projecting/Instructions for Use......................................................................26
16. Safety Instructions .....................................................................................27
17. Maintenance and Care ..................................................................................28
17.1 Software update.............................................................................................................28
17.2 Cleaning.........................................................................................................................28
17.3 Transport and storage ....................................................................................................28
17.4 Disposal..........................................................................................................................28
18. Problems/Possible solutions..........................................................................29

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1. Terms and Definitions
BLITZDUCTOR®
Surge protection module manufactured by DEHN + SÖHNE
DEHNrecord DRC LC M3+
DEHNrecord DRC LC M3+ is a compact handheld reader with integrated RFID technology for non-
contact testing of surge protection modules (Blitzductors®).
DEHNrecord DRC MCM XT
DEHNrecord DRC MCM XT is a compact monitoring device with integrated RFID technology for sta-
tionary testing of surge protection modules (Blitzductors®) in single and multiple application.
DEHNrecord DRC SCM XT
DEHNrecord DRC SCM XT is a compact monitoring device with integrated RFID technology for sta-
tionary testing of surge protection modules (Blitzductors®) in single device application.
HW
Hardware
SW
Software
LifeCheck®
Test for correct functioning of the surge protection modules during system operation without remo-
ving them.
RFID
Radio Frequency Idendification – Identification procedure per radio technology which allows for
non-contact reading and saving of data.
SPD
Surge Protection Device – surge protection module
FM
Floating remote signalling contact
2. Literature / References
/1/ Operating manual DEHNrecord DRC LC M3+
Issued by : DEHN + SÖHNE

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3. Application
DEHNrecord DRC SCM XT is a compact monitoring device in an XT enclosure with integrated RFID
technology (Radio Frequency Identification) for non-contact stationary monitoring of surge protec-
tion modules (SPDs). SPDs and monitoring device are marked with the LifeCheck®symbol.
LifeCheck®Symbol:
Up to 10 surge protection modules (Type BLITZDUCTOR®with integrated LifeCheck®) can be assig-
ned to one DRC SCM XT monitoring device.
The following surge protection modules are equipped with LifeCheck®technology:
- BLITZDUCTOR®CT; Type: BCT MLC ...
- BLITZDUCTOR®XT; Type: BXT ML...
- BLITZDUCTOR®XT; Type: BXT ...EX...
- BLITZDUCTOR®XTU; Type: BXTU ML...
The status of this “group” of protection modules is continuously contactless checked via the DEHN-
record DRC SCM XT monitoring device, it is displayed by an integrated LED and signalled by a
potential-free remote signalling switching contact. Both the LED indicator and remote signalling
contact provide general information about the operating state of all protection modules assigned
to the monitoring device:
- All protection modules of the group are okay
- Replacing of at least one protection module necessary
A detailed fault diagnosis either is provided by
- the LED which is integrated in the monitoring device, or
- by manually testing of the individual SPDs with the handheld reader DEHNrecord DRC LC M3+
4. LifeCheck®
Protection modules with LifeCheck®symbol are equipped with a combined RFID based transmission
and monitoring unit. Thermal and electrical overloads of the surge protective device will be reliably
detected.
With the stationary monitoring device DEHNrecord DRC SCM XT, the proper state of these surge
protection modules (Type BLITZDUCTOR®) can be permanently monitored and remotely signalled to
a supervising control centre.

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5. Device Description
The stationary monitoring device DEHNrecord DRC SCM XT consists of
- a special base part for DIN
rail mounting and wiring
- a plug-in module which
includes the condition
monitoring unit
The standard delivery includes a quick guide1) and the labelling system BS BA1.
Current versions of
- Detailed operating manual for DRC SCM XT (Publication No. 1818)
- Operating manual for handheld reader DRC LC M3+ /1/
- Device software for the handheld reader DRC LC M3+ /1/
are available for downloading download under www.dehn.de/download/.
1) Publication No. 1809, see also www.dehn.de

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






BA1 
Plug-in module DRC SCM XT for inserting/snapping into the base part ; monitoring
device for stationary, permanent LifeCheck®of up to 10 BLITZDUCTOR®XT (or CT).
Button for controlling the DRC SCM XT via the following function:
ctrl controls the detailed status indication via the LED or the
programming of an SPD
Three options are provided: press short (<2 sec.), press long (>5 sec.) and press until chan-
ging of function is recognised.
An ongoing test (LED, orange permanent light) may be interrupted by pressing the button,
see also (“Extended functions for the DRC SCM XT” in chapter 13).
push ctrl

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3-colours-LED for indicating the monitoring and device status. Function is
indicated by the LED flashing.
Device status
Start sequence:
Device status, fault / wrong configuration (DIP switch )
Programming mode
Monitoring status
All SPDs OK
Replace at least one SPD
e.g. SPD No. 3 ⇒ The number of red flashing pulses indicates the SPD No. of the first
SPD to be replaced.
4-fold DIP switch for configurating the monitoring device:
Attention:
Remove the plug-in module before configuration!
Function
Set the quantity (n) of SPDs to
be monitored.
Numbers 1..n then will also
be used as sequence number
for parameterising of the SPDs
monitored.
State when delivered 0
Admissible range 1 ... 10
Setting By setting the corresponding
binary code value: e.g. 10 (=
8+2)
8421
On Off On Off

!
⇒ Follow the quick guide!
Adhesive label: A labelling system which is included in delivery for marking the DRC SCM XT
with the SCM system address (BA1). This device address is necessary for programming the
SPDs for stationary monitoring or for localising damaged SPDs and for providing replacement
devices.

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Special base part for DIN rail mounting, with screw terminals, for insertion of the plug-in
module .
Terminal Function Note
+ / - External d.c. supply,, 18...48 V, max. 100 mA Any polarity
- / +
AFunction not implemented
B
13 Function not implemented Max.: 300 mW at;
d.c. 350 V; 120 mA
a.c. 250 V; 70 mA
Any polarity
14
21 Remote signalling contact 1 break contact, nc
22

!
Base part only for plug-in module DRC SCM XT ⇒ Follow quick guide!

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6. Design/Configuration
DRC SCM XT monitoring device allows for permanent LifeCheck®monitoring of up to 10 BLITZDUC-
TOR®XT or CT.
For monitoring of BXT...EX...modules, TW DRC MCM EX partitions are mandatory in order to ensure
the separation distance between intrinsically safe and not intrinsically safe current circuits! A space
requirement of at least 14 cm for a partition must be observed (e.g. distance from cable ducts at
least 14 cm, DIN rail arranged in the centre).
SPDs shall be equally assigned to the monitoring devices.
DRC SCM XT, however, must be arranged preferably in the centre of the assigned SPDs. Reserve
plug-in places are to be arranged on the outside. In case of a mixed monitoring of BLITZDUCTOR®
XT and CT they shall be arranged according to type each at one side.
Potential sources of interference, e.g. switching system components, providing an RFID similar fre-
quency, also shall be inserted in the minimum distance.
Single device application
DRC SCM XT is only for single device application, i.e. a minimum distance of 50 cm (all direc-
tions) must be kept between the individual DRC SCM XT, in order to exclude mutual influencing and
wrong measurements.
1.1
BA 1
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10
BA 1 1.1 1.2 1.3 1.51.4
BA 1
BA 1
1.1 1.2 1.3 1.4 1.1 1.2 1.41.3
BA 1
50 cm 50 cm
50 cm 50 cm
50 cm
min. 14 cm
The specified device address 1 (BA1) is applicable for each DRC SCM XT.The assigned SPDs have to
be programmed according to the number of SPDs to be monitored.
In addition to the connection of the remote signalling contact the DRC SCM XT only needs a d.c.
voltage supply.
partition TW DRC MCM EX

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7. Wiring
Remove the plug-in module for the wiring to be carried out at the base part.
Shown remote signalling contact: Function principle! Contact is integrated in the monitoring
module!
Optional remote signalling contact (FM)
Galvanically isolated switch contact
integrated in the DRC SCM XT monitoring
module. Voltage supply
UN18...48 V d.c.; max. 100 mA
max. 350 V d.c. / 120 mA PIN: +/-; -/+
250 V a.c. / 70 mA
300 mW
Pin: 21-22 break contact (nc)
*) Switch contact shown in its normal state (all monitored SPDs are OK), that is supply voltage is applied and the
DRC SCM XT module is plugged in.
Note:
Single-core, non-sheathed cables of intrinsically and non-intrinsically safe circuits routed together in
conductor bundles or cable ducts must be separated by an intermediate layer of insulating material
or an earthed metal intermediate layer in accordance with EN 60079-14. Separation is not required
if sheathed cables or cable shields are used in intrinsically and non-intrinsically safe circuits.
7.1 Power supply
Connect the device to d.c. supply at the terminals +/- and -/+ .
Polaritity: any
Nominal voltage (range): 24 (18...48) Vd.c.
Max. power consumption: 80 (100...60) mA
Smoothing and residual ripple of the power supply used, have to comply with the nominal voltage
range!
7.2 Remote signalling contact
Remote signalling of the monitoring state of each group is possible via the galvanically isolated
break contact which is integrated in the DRC SCM XT.
Without power supply the status of the FM contacts is at “Replace SPD”.
*)
22
21
+/- d.c.
-/+ d.c.
*)

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8. Configuration
The plug-in module must be removed for settings/changes of the device configuration.
When delivered all DIP switches are set to OFF. When starting operation therefore error is indicat-
ed (inadmissible configuration).
8.1 Number of SPDs to be monitored
The maximum number of 10 SPDs to be monitored is set laterally by 4 DIP switches . On starting
operation, the LED indicates error when setting 0 or >10.
DIP switch
State when delivered 0
Admissible range 1...10
Configuration Binary by setting of the
corresponding number,
e.g. 10 (=8+2)
8421
On
Off
On
Off
8.2 Device address/Group No.
The device address is also used as group no. of the assigned SPDs.
It is internally set to 1 and can not be changed.
The code for the SPDs to be programmed consists of the group no. and the consecutive position no.
within the monitoring group: Group number. Position number. As the group number is preset to 1,
only the position number varies. The code of an SPD at position five within the monitoring group
thus is: 1.5 (see also 9. Programming of SPDs).
On
Off


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9. Programming of SPDs
When delivered, the Blitzductors®XT and CT can not be used with a DRC SCM XT monitoring device.
The SPDs will be assigned to the respective DRC SCM XT only by a corresponding programming of
the RFID transponders in the SPDs.
When programming the SPDs, a definite code which includes the device address/group number of
the assigned monitoring device (fixed 1) as well as the consecutive number of corresponding Blitz-
ductor within the group is generated for every transponder and deposited there.
In operation the SPD then only responds to questions which include the code.
There are two possibilities of programming:
Direct programming at the DRC SCM XT monitoring device
Offline programming via handheld DRC LC M3+ reader
9.1 Direct programming at the DRC SCM XT monitoring device
SPDs are programmed via the SHOW mode of the DRC SCM XT. The mode is automatically started
if non-existent SPDs or SPDs to be replaced are detected during a LifeCheck test. This function also
allows for programming of SPDs with LifeCheck which are in the state as delivered, directly in the
installation without further auxiliaries.
Faulty SPDs can be easily replaced in case of maintenance or be programmed and inserted on site
at the initial commissioning of a system. At initial commissioning, the first LifeCheck test should be
aborted after the boot up by pressing button (see also 13.1 Abort of an ongoing test), the SHOW
mode then is immediately implemented (when delivered the monitoring status is set to “Replace all
SPDs”).
The SPDs are programmed via the button at the DRC SCM XT monitoring device and the LED status
indication. In the SHOW mode, the number of the first SPD to be programmed or replaced is indica-
ted by the number of red flashing pulses of the LED.
The following flowchart describes the programming of SPDs via the DRC SCM XT monitoring device.
Observe that only one unprogrammed SPD is in the base part for programming and all other unpro-
grammed SPDs are located at least 50 cm away from the monitoring device. Only this ensures that
always just one SPD is programmed with the corresponding code.

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Flowchart of SPD programming
!
Note: An ongoing LifeCheck test can be manually aborted by pressing the ctrl button
(see also 13.1 Abort of an ongoing test).
push ctrl
2
3
1a1b
> 5 sec.
Initial state when commissioning Remove faulty SPD during maintenance work
SHOW mode
Number of red flashing pulses corresponds to the SPD No. to be programmed/replaced
e.g. SPD No. 2
Programming mode activated
LED flashes orange
Press button
Press the ctrl button when the LED flashes orange and release it after the LED goes out.
Note: If the button is not pressed within one minute, the SHOW mode is terminated and
the monitoring cycle is restarted.
4
Keep button pressed for about 1 to 2 seconds for
programming
Press button
1-2 Sek.
3a
Press button for more than 5 seconds to jump to
the next SPD
⇒ Next SPD is shown
3b
Press button
⇒ Programming mode activated
Press short Press long

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!
push ctrl
3
click
5
6
8
7a7b
9
10
Always insert only one
unprogrammed SPD for
programming! Do not snap it
in completely (see pictures)!
Commissioning Maintenance work
Start programming
Press the ctrl button to start programming until the LED is continuously
illuminated orange.
Programming in progress … Wait for result!
Insert an unprogrammed SPD
Programming successful Programming failed 2)
3 sec. ⇒ SPD No. is indicated again (for new
programming attempt)
Attach label for programmed SPD address (SCM
address•position No.)!
Eindrücken
Eindrücken
3 sec.
Snap SPD into base part
Any other SPDs to be programmed? Next SPD No. is
automatically shown
Yes
No
End of programming
The SHOW mode is automatically terminated, a new test cycle is started.
Label SPD
2) see 18. Problems / Possible solutions

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9.2 Offline programming by DRC LC M3+ handheld reader
Description Offline programming via DRC LC M3+ - Part 1 Handheld reader display
Programming of SPDs for stationary monitoring without DRC SCM XT is
possible via the handheld reader DRC LC M3+. Minimum requirement is
a 1.1.02 version of DRC LC M3.
For updating of the device software use the PC software DRC SW Up-
date. Device software is available for downloading under www.dehn.
de/download/. For closer details on the device update please see the
operating manual for the handheld reader. /2/
Programming of the SPDs and all other functions for the SPDs in relation
to the DRC SCM XT and DRC MCM XT are collected at the DRC LC M3+
under the DRC MCM mode:
Selection of the submenu for programming of SPDs
Mode < - >
DRC MCM
Menu selection
Use the submenu item “SPD programme” for programming. After
confirmation enter at first the device address “01” of the SCM and the
consecutive number of the Blitzductor to be programmed.
Use the blue arrow keys to change between entering the device
address and the SPD number.
DRC MCM:
SPD programme
ADR=01 SPD=01
SPD prog. -> OK
The modules must be removed for individual programming.
LifeCheck symbol
DE H N r ec o r d
DRC LC M3
DE H N r ec o r d
DRC LC M3
RFID
signal
Note: During the programming there must not be any other unprogrammed SPD within a
distance of 50 cm from the LifeCheck sensor!

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Description Offline programming via DRC LC M3+ - Part 2 Handheld reader display
Snap the sensor of the DRC LC M3+ on the SPD to be programmed
before programming.
Do not remove the sensor from the SPD during the programming.
The programming result is indicated as LifeCheck OK or replace SPD.3)
If the programming fails again, it has to be checked, perhaps the SPD is
already programmed. Use the submenu „Check/Search“ to find it out.3)
Confirming the result automatically leads to the next consecutive num-
ber withing the group, which provides a quick progress, or a consecutive
number may also be set via the number keys. (Use the blue arrow keys
to change between device address and SPD number!)
Label programmed SPDs immediately! With the consecutive number
(1,2,...,9,10) or in connection with the group no./device address of the
DRC SCM XT (1.1,...,1.10)!
Programming can be checked by checking the SPDs in the submenu
“Check/Search”.
Enter device address and number of SPDs to be monitored.
Select submenu “Check SPD”
Snap the LifeCheck sensor on the

SPD and start checking
Do not remove the sensor from the SPD during the test!
The result of the LifeCheck test is shown as LifeCheck OK or replace
SPD.3)
Check the status of the removed SPD with the DRC LC M3+ handheld
reader, if testing fails repeatedly.3)
After successfully programming of all SPDs, the stationary DRC SCM XT
monitoring device can be started.
Note: Deviating scope of function and programming sequence when using the DRC LC M3 handheld reader,
observe Operating manual BA 1670/V.1.1.0.1 “Extension for the Stationary Monitoring Device
DRC MCM XT”!
3) See Operating Manual DRC LC M3+. /1/
ADR=01 SPD=01:
SPD prog. --> OK
-Programming-
Please wait!
LifeCheck OK
ADR=01 SPD=01
ADR=01 SPD=02
SPD prog. -> OK
DRC MCM:
Check/Search
Configuration
ADR=01 SPD=10
Check SPD
ADR=01 10*SPD
ADR=01 SPD=01
Check SPD -> OK
-Checking-
Please wait!
LifeCheck OK
ADR=01 SPD=01

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10. Commissioning of DRC SCM XT
or 1 min.
LED
LED
21 22
21 22
e.g. SPD No. 2
1a
1
2
3
1b
3a
3b
21 22
21 22
!
21 22 21 22
3 min.
Checking the assigned SPDs
Status display
Display of the monitoring status
Note:
Ongoing tests (LED ) can be aborted by pressing the ctrl
button (see 13.1)!
Applying the supply voltage to the DRC SCM XT or plugging the module into the
connected base part starts the device with the
Boot up
Checking the configuration (DIP switch see 8.1)
DRC SCM XT automatically loads the last valid monitoring status
Monitoring status FM
All SPDs OK
Replace at least one SPD
Note: When delivered, the monitoring status is set to “Replace all SPDs”
DRC SCM XT automatically starts the test cycle
Configuration OK Configuration not OK
LED
Start sequence (6 Sek.) Faulty configuration
FM LED
Status
OK
LifeCheck faulty,
replace SPD
FM
⇒ Configuration see 8
FM
Monitoring of the SPDs by the DRC SCM XT is automatically started as soon as the testing for ad-
missible configuration and the start sequence is terminated.

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Commissioning is successful and can be terminated, if the assigned SPDs are checked
and DRC SCM XT shows that the monitoring status of all SPDs is OK.
Attention! If the configured number of SPDs wrongly is lower than the existing SPDs to be monitored, this can
not be recognised by the device, this means SPDs with No. n> than the configured number are not
checked!
11. Monitoring Status
The status of the monitoring group is redetermined with every complete checking
and visually indicated by LED and remote signalling contact (FM).
Two states may be shown:
LED FM 21-22, nc
All SPDs OK
Replace at least one SPD
First SPD No., (here e.g. SPD No. 2)
The updating rate of a DRC SCM XT monitoring status mainly depends on the number of SPDs
which are determined for replacement.
For a DRC SCM XT with 10 assigned SPDs which are all OK, it is typically 15 seconds.
Another 75 seconds are necessary for every single faulty SPD. In the worst case, checking in case
of 10 faulty SPDs would last approx. 13 minutes.
If a running check has to be aborted, the test sequence may be interrupted by pressing the ctrl
button at the DRC SCM XT (until LED goes out for a short time) (see 13.1 Abort of an ongoing test
cycle).

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12. Maintenance at Monitoring Status Replace SPD
In order to avoid system downtimes, the SPD monitoring device
already generates the “Replace SPD” monitoring status in case
of an imminent fault due to inadmissible overload. Both thermal
(overheating) and electrical (impulse current) occurrences are re-
gistered.
The DRC SCM XT records the overload or a pre-damage at an assigned SPD and signalises the
“Replace SPD” monitoring status via LED and remote signalling contact.
The SPD to be replaced can be exactly located as follows:
12.1 On-site determination by pushbutton function at the
DRC SCM XT
The SHOW mode is used to indicate SPDs to be replaced/faulty on
site without any other auxiliaries.
It is called up automatically if the monitoring status shows “Replace at
least 1 SPD”. The SPD No. of the first SPD to be replaced is indicated. In
the following test cycle e.g. SPD No. 2 and SPD No. 4
are determined as faulty:
Checking
with faulty status
(SPD No. 2)
Show mode
SPD No. to be replaced is indicated for approx. 1 min
• • •
Next checking
Pressing the button long when the LED flashes orange leads on to the next SPD No.
to be replaced;
...
(SPD No. 2)
> 5 sec
(SPD No. 4)
Press button
Is indicated for 1 minute without pressing the button.
If no other SPD must be replaced, the Show mode is finished
and a new test cycle is automatically started.
(SPD No. 4)
> 5 sec Press button
Test cycle running
In addition to the indication function also programming of SPDs is possible in the Show mode (see 9.1
Direct programming at the monitoring device)
If, however, all assigned SPDs are OK, the status “All SPDs OK” is indicated for
3 min. . During this time the button provides no function.
push ctrl

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12.2 Offline determination by handheld reader DRC LC M3+
A documentation or labelling is not necessary for the on-site checking and identification of SPDs to
be replaced when using the handheld reader DRC LC M3 (version state > 1.1.02 dated 2008/05/28)
or the succeeding device DRC LC M3+ (version state > 1.2.00 dated 2009/08/04).
Prerequisite is the deactivation of the monitoring device for the group to be tested, i.e. it is just
locked out and removed from the base part.
Offline determination of SPDs to be replaced by DRC LC M3+ handheld reader:
Description Offline determination via DRC LC M3+ - Part 1 Handheld reader display
Under the menu item DRC MCM at the DRC LC M3+ , the checking of
SPDs and all other functions for the protective devices in connection with
the stationary reader are summarised:
3)
Before checking, the fixed device address /group no. (ADR=01)
and the number of SPDs in the group which is going to be tested must
be entered in the configuration, once when starting the DRC LC M3+ or
in case of changes.
Change between bus address and number of SPDs with
Whenever the configuration is called up, the status of the group,
available under DRC MCM Status is reset to untested.
There are three kinds of status: - untested
1SPD OK
0Replace SPD
Configuration of the display is increasing from left to right, starting with
the consecutive No. 1 up to the configured number.
Use the DRC LC M3+ menu item Check SPD for checking the Individual
SPDs
The device address/group No. (ADR=01) is automatically taken from the
configuration. Use the arrow keys for selecting the consecutive number
of the SPD to be tested. Both numbers are the necessary code for calling
up the SPD.
3) See operating manual DRC LC M3+. /1/
Mode <->
DRC MCM
Configuration
ADR=01 SPD=10
Check SPD
ADR=01 10*SPD
DRC MCM:
Check/Search
MCM status
ADR=01 10*SPD
MCM ADR=01
1 1 0 1 1 0 - - - -
Check SPD
ADR=01 10*SPD
ADR=01 SPD=01
Check SPD ---> OK
