Alpha Technologies Cordex Controller Panel Mount_Rack Mount 125_220Vdc - Manual (Page 20)

Argus Technologies Ltd. 018-570-C0 Rev B WC
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5.8 Relay Outputs
WARNING
Relays are rated at 220Vdc 0.4A. Exceeding these limits may damage the relay and other circuitry
in the CXC.
Terminals 27 to 50 provide 8 Form C contacts (NO, COM and NC) for extending various alarm or control signals.
Each relay output can be wired for NO and/or NC operation during an alarm or control condition. See Figure 6.
Figure 6–Showing relay connections in the de-energized state
Relays can be programmed to energize or de-energize during an alarm condition (see Software manual). When
the CXC reset button is pressed or power is lost, all relays de-energize.
Relay contacts 1-8 are high capacity and intended to be used for controlling LVD contactors.
5.8.1 System Fail Relay
Terminals 51 to 53 provide connections for a system (supervisory) fail relay. This fail-safe relay (i.e. it is de-
energized during an alarm condition) can be wired for NO or NC operation.
5.8.2 LVD Control
The LVD control functions can be hardwired directly from the assigned relay output pins to the LVD contactor
panel. See Controls Menu Defaults in the Software manual.
5.8.3 CEMF Cell Control
The CEMF control function can be hardwired directly from the assigned channel in to the CEMF cell controller
panel. See Controls Menu Defaults in the Software manual.
5.8.4 Optional Relays and Outputs
Eight relays and outputs may be added to the CXC (panel and rack models) with the purchase of an optional
expansion board (see List Options at the front of this manual).
5.9 Rectifier Connections
5.9.1 CAN Out Serial Port
A single CAN Out serial port, for communications with Argus’ Cordex rectifiers and other CAN-enabled equipment
(nodes) on the same system, is located next to the rear Ethernet port.
Daisy-chain from node to node (CAN OUT of one node to CAN IN of another) as necessary and ensure that only
the last node is terminated.