AEG PV.500-MH Benutzerhandbuch

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Protect PV.500_MH Operating Instructions 
 
80000043212 BAL 
55 of 68 
7.3 Remote 
Signalling 
The remote signalling board is a contact interface for signalling PV 
messages and controlling PV units. It is supplied as an option for 
the AEG PV system and is intended for installation in the PV unit. 
The remote signalling master board consists of 5 potential-free 
signalling contacts and one control input.  
There is an independent 24 VDC power supply for the control in-
put. The control signal is activated by bridging the relevant input. 
There is no need for an additional auxiliary power supply.  
The signals are assigned as standard or can be configured on a 
customer-specific basis. An integrated service switch enables 
maintenance work on the unit to be signalled. 
Technical data: 
The maximum load for the signalling contacts (X3/X4) is 500 V/8 A 
AC or 50 V/2 A DC.  
 
If the specified power has been applied to the relay con-
tacts once, those contacts can no longer reliably switch 
an extra-low voltage (evaporation of the gold alloy)! 
 
The control input (X5) has an independent 24 VDC power supply. 
The input is activated via a bridge. 
Structure: 
 
K21
K22 
K23 
K24
K25
OPT1
1
1
1
X2 
X3
X4
X5
X1
X6
X7
X2 
S1
12
 
11
 
10
 
 9
 
 8
 
 7
 
 6
 
 5
 
 4
 
 3
 
 2
 
 1
 
 3
 
 2
 
 1
 
 2
 
 1
 
 
Figure 23 
Remote signalling master module A12 (top view) 
X1: 
Power supply connection 
X2: 
Connection for remote signalling expansion boards 
X3/X4: 
Remote signalling outputs with relay changeover 
switches  
X5: 
Remote signalling input via optocoupler with independ-
ent power supply 
X6: Service 
plug 
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