Alarm Lock Eagle 6000 Especificaciones descargar pdf (Pagina 26)

Eagle Research Corporation

REV 11.1.11 Page | 22

OPTIONAL SOLID-STATE RELAY CARD (SSRC4)

The optional solid-state relay card is a four-channel, optically coupled card used to

control direct current output voltage to field equipment. It is an ideal choice in

applications formerly governed by older style mechanical relay circuits. Wear, arcing,

noise, and other problems inherent with mechanical relays are eliminated. The main

purpose of the SSRC4 is to drive reversible DC motors.

There are four individual channels, each having a status-indicating LED, and whose

outputs are fused at two amps. +12 to +24 VDC power to the outputs, and for

operation of the solid state relays, is applied to the VS and COM terminals. A low (0)

digital pulse from the RTU will trigger one channel of the card, and light the associated

LED. The operating voltage is fully isolated from the RTU triggering signals.

For proper operation, jumper JP3 must be removed and JP4 must be installed. Four

digital I/O lines are used to address the card. Ports P4.0, P5.0, P6.0, and P7.0 will

determine addressing of the relay card via the JP1 and JP2 jumper configurations. P4.0

is associated with the four jumpers near the center of the board, and P7.0 the four

jumpers near the board’s edge. For proper function, both hardware and software

addressing must match. The table below lists the specifications for the solid-state relay

card.

Description

Specifications

Electrical Isolation

5000 VAC

Output (Switching) Voltage

12 to 24 VDC

Output Current (max)

Momentary

Continuous

2 amps

1 amp

The diagram below shows a simplified schematic of the SSRC4 card

Fig. 8 – Solid-State Relay Card (SSRC4)

NOTE

Four of the digital I/O lines must be sacrificed to use the mechanical relay card.

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Alarm Lock Eagle 6000 Especificaciones Pagina 26