Installing the inverter
Page 23
Operating Instructions for Powador 7700-9600_EN
EN
Authorised electrician
7.3
Connecting the interfaces
All interfaces are connected on the communications board located on the inner side of the doors.
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.
NOTE
When routing the interface connection cable, note that too little clearance to the DC or AC cables can
cause interference during data transfer.
K
K
K
SYM-Bus
+
+ -
-
E
V
U
S
0
CAN
CAN
B
A
RS485
Err.
max 250Vac/1A
RS232
Term
R
S
4
8
5
C
A
N
+ -
5
V
O
C
-o
u
t
+ -
CAN
L
H
10
1
2
4
0
1
2
ON
1
2
4
0
1
2
Figure 17: Interface terminals
7.3.1 Connecting the fault signal relay
The contact is designed as an N/O contact and is labelled “ERR” on the circuit board.
Maximum contact load
30 V / 3 A
Connecting the fault signal relay
1. Unscrew the cable fitting.
2. Thread the connection cables through the cable fitting.
3. Attach the connection cables to the connection terminals.
4. Tighten the cable fitting.
7.3.2 Connecting the S0 output
An S0 pulse output is located on the communication board. Use this output to control accessories such as a large
display, for example. The pulse rate of the output is adjustable.
Connecting the S0 output
1. Unscrew the cable fitting.
2. Thread the connection cables through the cable fitting.
3. Attach the connection cables to the connection terminals.
4. Tighten the cable fitting.
NOTE
Ensure that the wires are properly connected. Communication is not possible if the wires are
reversed.
