User manual
AKKU
TEC
2412 VdS
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0812G01B02-160422.docx
3.4
Connection of mains voltage
The input voltage of the external energy supply must correspond to the mains voltage at the distribution. The
mains voltage must be disconnected and secured against unintended powering up.
The voltage-free mains cable must be connected to the mains connection terminal provided for this, taking into
account the phase. Mains connection must be performed to the terminals “L1”, “N” and PE ( ).
It is obligatory to connect to operational earth.
3.5
Connection load
When connecting the load , the polarity “+” and “-” must be considered.
If the mains voltage is disconnected, and if the minimum input voltage is fallen short of, the external energy
supply changes over to buffer operation.
NOTE
In case of overload, the DC output current is composed of the maximum charge rectifier cur-
rent and the lead accumulator current. The DC output circuit must be fused externally in order
to avoid overload!
3.6
Signal contacts
The status of the external energy supply can be forwarded to a superior central
unit via signal contacts. The relay contacts are linked to the LED
’s with the same
name. Thus, the illumination of an LED effects the corresponding relay.
3.7
Circuit diagram
Connection
Terminal
Mains connection
L, N, PE
DC output(load)
+Ua, -Ua
Lead accumulator
+Bat, -
Bat
Temperature sensor
(Optional)
IO-2: 1,2
Control input
Shut-Down
IO-2: 3,4
Control input
safety monitoring
IO-2: 7
Current-share-bus (only at
connection in parallel)
IO-2: 5
Signal contact
Terminal
Mains operation
IO-1:
COM=4; NO=5; NC=6
Bat-OK
IO-1:
COM=1; NO=2; NC=3
General fault signal
IO-1:
COM=7; NO=8; NC=9
Sync
(only at parallel connection)
IO-2: 6
(The LED
’s are linked tot he message contacts with the corresponding names.)
IO-1
Netz /
Mains OK
4
5
6
7
8
9
1
2
3
Bat OK
Störung /
Fault
30V DC/
0,5A
30V DC/
0,5A
30V DC/
0,5A
