3 Installation
Logamatic web KM200 – 6 720 805 486 (2013/01)
15
2.2 Specification
The design and operation of this product conforms to the
European Directives and the supplementary national
requirements. Its conformity is demonstrated by the CE
designation. You can call up the Declaration of Conformity
for this product on the internet at www.buderus.de/konfo or
request a copy from your local Buderus sales office.
2.3 Cleaning and care
▶ If required, wipe the enclosure with a damp cloth. Never use
chemically aggressive or acidic cleaning agents.
3 Installation
3.1 Installation
▶ Remove cover ( Fig. 3, page 82).
▶ Mount the module ( Fig. 4, page 82).
▶ Secure the module ( Fig. 5, page 82).
3.2 Electrical connections
Connections and interfaces
Legend to Fig. 6 and 7, page 83:
7,5 V DC Power supply unit connection
CAN 1 Ground (GND)
CAN 2 CAN Low
CAN 3 CAN High
EMS Connection EMS-BUS
LAN LAN connection (RJ45)
RESET RESET button
TSW Switch for CAN connection
Pre-assembling the ferrules and connecting the cable
▶ Open the grommets to match the cable diameter and cut in on one
side ( Fig. 8, page 83).
▶ Fit the ferrules and connect the cables (EMS: Fig. 9, page 83; CAN:
Fig. 10, page 83).
3.3 Connecting the BUS connections
Maximum total length of the BUS connection between all subscribers
of the corresponding BUS system:
• EMS plus:
– 100 m at 0.50 mm
2
conductor cross-section
– 300 m at 1.50 mm
2
conductor cross-section
• EMS:
– 50 m at max. 2.50 mm
2
conductor cross-section
• CAN:
– 30 m (shielded, twisted wires)
Suitable cables for the corresponding BUS system:
• EMS and EMS plus: e.g. LiYCY 2 x 0.75 (TP)
• CAN: 2 × 2 × 0.3 mm
2
; shielded, twisted wires
▶ All LV leads must be routed separately from cables carrying mains
voltage to avoid inductive interference (minimum separation
100 mm).
Connecting the EMS and EMS plus BUS system to the module
▶ Connect BUS subscribers with two BUS connectors in series
( Fig. 6, page 83) or BUS subscriber [B] with one junction box [A]
in a star configuration ( Fig. 11, page 83).
▶ In case of external inductive interference, shield the cables.
This ensures that the cables are shielded from external interference
(e.g. heavy current cables, overhead wires, transformer stations,
radio and television set, amateur radio stations, microwave ovens
etc).
Connecting the CAN BUS system to the module
▶ Connect the shielding of the CAN cable in the module to CAN 1
(earth).
▶ Connect one wire of the twisted wire pair in the module to CAN 2 (CAN
Low).
▶ Connect the second wire (of the twisted wire pair used for CAN 2)
inside the module to CAN 3 (CAN High) ( Fig. 7, page 83).
Make CAN connection to heat pump.
▶ Find free CAN connections in the heat pump.
▶ If no free connection is available in the heat pump, the CAN cable must
be connected sharing the connection with another accessory.
Specifications
Dimensions (W × H × D) 151 × 184 × 61 mm (further
dimensions Fig. 2, page 82)
Rated voltages:
• EMS plus BUS system
• EMS BUS system
• CAN BUS system
• Module power supply
• 10 V to 24 V DC (reverse polarity
protected)
• 12 V to 15 V DC (reverse polarity
protected)
• 0V to 5V
• Plug power supply unit supplied
230 V AC/7.5 V DC, 700 mA
Interfaces • EMS
• EMS plus
• CAN
• LAN: 10/100 MBit/s (RJ45)
Power consumption 1.5 VA
Permissible ambient
temperature
0 ... 50 °C
Protection class IP20
Table 11
If the maximum total length of the BUS connections
between all subscribers in a BUS system is exceeded,
the system cannot be commissioned.
If a ring structure is present in the EMS plus or EMS BUS
system, the system cannot be commissioned.
Verify the correct position of the two CAN connection
switches to ensure that the CAN system is correctly
connected ( Fig. 7, page 83).
▶ If the module is an end point, both switches must be
set to ON.
▶ If the module is connected to a branch line, both
switches must be set to OFF.
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