AEG PV.500-MH manual 7.3Remote Signalling, Technical data, Structure

Protect PV.500_MH 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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