VEW AV07 RED
The original H&B AV07 module has a plug-and-play replacement in the VEW AV07 RED redesign.
The AV07 Contact Scan provides three UV1 to UV3 binary signals protecting by 0.1A fuses of Si1 to Si3 for a contact supply.
The +24V/-24V-DC-DC converter generates a stabilized 24V voltage with triple redundancy. A contact thus activates the +24V using a resistance against the –24V.
The contact current is 4 mA on an unencumbered outlet.
The contact signals are available twice and decouple over diodes.
The contact creation is measured on the front plate socket.
The H signal is transmitted for an activated contact. The diodes are blocked for opened contacts; an connected consumer thus “sees” on open inlet (L signal), however 24V is measured on the relevant socket.
To make sure the fuses for a zero connection can recognize contact of feeds at any position clearly, the length of the two line contacts of 0.5mm² Cu should be < 500m.
The monitoring logic is supplied with quadruple redundancy (US from LZ02).
The S1 to S3 LED displays tripping of fuses individually and the failure of the -24V jointly with 2Hz blinking. At the same time a standard fault notification S (static) / SI (pulse notification) is issued to LZ01.
The light emitting diodes are jointly tested using the LTS (cabinet lamp test).
|Supply voltage||UV +24V (19...33V); US +24V (19...33V)|
|Fuse||3x 5x20mm; 0,1AmT|
|Power input||UV/US ca. 15mA + LTS + load current + 10mA/closed contact|
|Input||H = +24V; L = 0V|
|Output||H = +24V; L = 0V|
|Contact supply||UV 1...3 +24V|