Electrical connection
Page 26
Operating Instructions KACO blueplanet 29.0TL3
EN
EN
Authorised electrician
7.8
AC and DC overvoltage protection upgrade
NOTE
The M and XL versions of the unit series blueplanet 50.0 TL3 allows you to upgrade the AC and DC
lightning and overvoltage protection in a straightforward and cost-efficient manner.
In this respect, please refer to the documentation “blueplanet 29.0 TL3 Application note – Installing
surge protection device” on our website.
7.9
Connecting the interfaces
All interfaces are located on the communication circuit board on the inside of the housing door.
CAUTION
Damage to the unit from electrostatic discharge
Components inside the unit can be damaged beyond repair by static discharge.
"
Note the ESD protective measures.
"
Earth yourself before touching a component by touching a grounded object.
NOTE
Due to the installation position of the communication circuit board, this must be specially safe-
guarded against moisture and exposure to dust.
›
Make sure that no moisture or dust impacts on the circuit board during installation. Moisture and
dust particles must be removed immediately. In doing so, disassembly of the circuit board may be
necessary.
1
RS485
Ethernet
A B
GND
A B
GND
H L
H L
USB
ERR
Optional
INV
OFF
Optional
Optional
DIP
1
1.1
1.2
1.3
1.4
1.5
1.6
Figure 34: Communication circuit board: Connection and assignment of the interfaces
Key
1
Communication circuit board
1.4
RS485 - Connection for data loggers
1.1
ERR - Connection for fault signal relay
1.5
DIP switch - Activate terminating resistor
1.2
USB - connection for update
1.6
INV OFF - connection for remote control
devices
1.3
Ethernet - Connection for communication
DANGER
Risk of fatal injury due to electric shock!
Severe injury or death may result from improper use of the interface connections and failure to
observe protection class III.
›
The SELV circuits (SELV: safety extra low voltage) can only be connected to other SELV circuits with
protection class III.