5 Installation and startup
KACO Gerätetechnik GmbH 10 Installation Instructions Powador 01xi
5.4 Connecting the fault-signal relay
The inverter is equipped with a potential-isolated relay
contact to signal faults. If a fault occurs, this contact will
be closed.
Max. contact load: 30V / 1A.
Figure 5.8 Fault-signal relay
5.5 Connection of the S0 output
The inverter is equipped with an SO pulse output for
connection of, e.g. a large display. The pulse rate is
adjustable (see page 11, Section 5.8)
Figure 5.9 S0-Connection
5.6 Connection of the RS485 interface
On the control board (at the rear side of the door of the
Powador inverter), there are four terminals marked
RS485 A and B (see Figure 5.10). To connect several
Powador inverters, terminal A of the first Powador must
be connected to terminal A of the second Powador;
terminals B are connected in the same way.
You need a twisted and shielded data cable for
connection, such as an ISDN cable. The connection to
proLOG is established analogously. The wiring plan is
shown in Figure 5.11. The total length of the RS485
wiring should not exceed 250 m.
Figure 5.10: Connection terminals for RS485-Interface
Figure 5.11: Wiring plan for RS485 Interface
The figure above shows a terminator which is
connected to the left inverter (R
a
,330Ω). This terminator
resistor is needed on the last device in the chain to
ensure correct signal transfer. The terminator is
supplied together with the Powador inverters.
Within a bus system, such as the RS485, each device
taking part in this system must have a unique address
(regardless of whether this is an inverter or current
sensor). For inverters, the address range can be
selected between 0 and 31. The address of each
inverter can be determined via the Set menu, (see
Operator’s Manual).
5.7 Startup of the inverter
After completing the mechanical and electrical
installation you may now put the inverter into operation
as follows:
Important!
Please ensure correct connection of
the A and B wires. If these wires are
confused, no correct communication
will be possible!
Important!
In the event of a power failure in the
public grid the relay will not trigger.
In this case, all LEDs and the display
will be extinguished and the inverter
will be shut down completely.
A fault signal will not be possible in
this case!
Phone
230VA
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