A
+/-
B
-/+
+/-
A
-/+
B
Address
No
. of monitored SPD's
min. 50 cm
min. 50 cm
2
2
RT = On
RT = Off
RT = On
Note:
- When using more than one DRC MCM XT in a switchgear cabinet, a two-wire connection is to be established to all MCM devices via
RS 485 bus (A/B terminals) to synchronise the monitoring devices.
- 1 to 10
BLITZDUCTOR
®
XT
protective devices with
LifeCheck
can be monitored with DRC MCM XT. The number of SPDs to be monitored
has to be selected via DIP switch (see 4. Configuration).
- The DRC MCM XT test device has to be positioned in the middle of the monitored SPDs!
- SPDs to be monitored have to be programmed with a password before use. This password consists of the bus/MCM address set at the DRC MCM XT and
a consecutive position number.
- No unprogrammed SPDs may be located or positioned in the vicinity of the DRC MCM XT device. Arrester modules always have to be programmed using
the DRC MCM XT device.
marking system
BS B
A1 B
A15 BXT
Art.
Nr
. 920 398
Free software and detailed installation instructions are available
on
www.dehn.de/download/
! See also chapter 11. Support.
BA1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10
BA2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10
BA3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10
BA4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10
BA5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10
BA6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10
BA7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10
BA8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 8.10
BA9 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 9.10
BA10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 10.10
BA11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10
BA12 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 12.10
BA13 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 13.10
BA14 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 14.10
BA15 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 15.9 15.10
Condition Monitoring
Module
DEHNrecord,
DRC MCM XT, Part No. 910 695
Unprogrammed
arrester modules:
Keep distance
(min. 50 cm)
to MCMs!
Switch
all
MCM devices into
the Master mode (sync. button)!
Switch
one
MCM device
into the Master mode
(sync. button)!
Note:
Observe the special installation conditions when using
DEHNrecord
DRC MCM XT together with
BLITZDUCTOR XT
and
XT Ex (i)
in intrinsically safe circuits (see Fig. 2.1 and installation instructions for "
Ex i partition
TW DRC MCM EX", Publication
1705). If the partition ist used in intrinsically safe circuits, a space requirement of 14 cm has to be observed (e.g. distance to cable
ducts min. 14 cm, DIN rail arranged in the centre).
Protective circuit
of intrinsically
safe circuits
RS-485 Bus
termination (RT)
On / Off
(see also 4. Configuration)
1. Scope of delivery
2. Installation
2.1 Single application
Note:
In case of multiple application with
bus connection no minimum
distance
has to be maintained!
Each DRC MCM XT only displays the status of the SPD monitored by
it even if several devices are synchronised.
2.2 Multiple application via RS-485 bus
Parallel synchronisation via interface (pin A and B).
External d.c. supply 18 to 48 V
Base part only for:
DRC MCM XT
Quick Start Guide DEHNrecord
DRC MCM XT
page 3
Ex i partition
TW DRC MCM EX
BLITZDUCT
OR
®
XT Ex (i)
BLITZDUCT
OR
®
XT
Unprogrammed
arrester modules:
Keep distance
(min. 50 cm)
to MCMs!
Example 1
Example 2
