Properties of the RS485 data line
Data cable
Twisted, shielded.
Recommendation
Black twisted pair for laying cable outside and in the
ground, 14 x 14 x 20 AWG
Gray twisted pair for dry and damp indoor spaces, 14 x 14 x
20 AWG
↻
To prevent interference during data transmission:
- Observe the wire pairing when connecting DATA+ and DATA-.
- Do not lay the RS485 bus line in the vicinity of live DC/AC cables.
1 Undo the cable fitting [ W_20]
2 Thread the connection cables through the cable fitting.
3 Connect the connection cables to the corresponding connection terminals.
4 The following must be connected to all inverters and to the data monitor unit in
the same way:
- Wire A (-) to wire A (-) and wire B (+) to wire B (+)
- GND to GND
5 Tighten the cable fittings [ W_20 / 1.5 Nm]
Fig. 37:
Assignment of twisted-pair
wires
NOTE
When using the RS485 bus system, assign a unique address to every bus device (inverter, sensor) and ter-
minate the terminal units (see the “Settings” menu) .
↻
Check whether one of the devices represents the terminal unit.
F
Only activate the terminating resistor on the communication circuit board of the terminal unit using the DIP switch.
»
RS485 connection made. Lay signal cable correctly.
7.9.5
Connecting external grid protection components
The contact is designed as an N/O contact and is labeled "ERR" or "Relay" on the circuit board.
Maximum contact load
DC
30 V/1A
↻
Connection area cover open.
1 Loosen the cable fitting to pass the signal cable through [ W_20]
2 Thread the connection cables through the cable fitting.
3 Attach the connection cables to the terminals.Overview [See section 7.9.1
4 Tighten the cable fitting [ W_20 / 1.5 Nm].
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
KACO blueplanet 137 TL3 KACO blueplanet 150 TL3
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EN-US
