Protect PV.630 Operating Instructions

7.3Remote 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.

I

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:

X2 1

S1

1

X7

1

1

1

X1

1 X6

OPT1 X51

K25

X4

 

1

K24

 

 

K23

X3

K22

 

K21

 

 

1

2

1

3

2

1

12

11

10

9

8

7

6

5

4

3

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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AEG PV.630 manual Remote Signalling, Technical data, Structure