Macurco CD-6G Manual De Operación página 16

Macurco CD-6G Operation Manual
3.3.1.2 Fan Relay Connection
All the SPDT Fan relay terminals are available at the Fan/Power modular connector. Each fan relay terminal normally open,
common, and normally closed (NO, COM, and NC) can accommodate a wire size 12 to 24 AWG. To install the wiring for the
relays, disconnect the connectors from the header. Strip the insulation off each wire back approximately ¼ inch (6.5 mm), insert
the bare wire into the terminal and tighten the screw clamp. Ensure that the wire cannot easily be pulled from the connector.
Plug the modular connection into the Fan/Power connection and ensure that it latches into the header properly.
3.3.1.3 Alarm Relay Connection
The external alarm connections (A and B) are available at the Alarm modular connector. There is no polarity for these
connections. To install the wiring for the alarm contacts, disconnect the connector from the header on the detector. Strip the
insulation of each wire back approximately 1/4 in. (6.5 mm), insert the bare wire into the terminal and tighten the screw clamp.
Ensure that the wire cannot easily be pulled from the connector. When the wires are connected seat the modular connector
into the header ensuring that the latch engages.
3.3.1.4 4-20 mA Output diagram
The positive and negative 4-20mA signal connections (+ and -) are available at the 4-20mA modular connector, a 2-position
connector. To install the wiring for the 4-20 mA contacts, disconnect the connector from the header on the detector. Strip the
insulation of each wire back approximately 1/4 in. (6.5 mm), insert the bare wire into the terminal and tighten the screw clamp.
Ensure that the wire cannot easily be pulled from the connector. When the wires are connected seat the modular connector
into the header ensuring that the latch engages.
N ote
: The 4-20mA current loop outputs may be used with the Macurco DVP-120 family and the DVP-1200 control panel or other
4 2 T 4 2 T
systems. The 4-20mA signal connections to detectors should be size AWG18 (minimum) for short runs. Refer to the table for
recommended wire gauges. Do not bundle detector 4-20mA signal connections with AC power cables to prevent electrical
interference. If AC power connections must be bundled with the detector 4-20mA signal cables, the signal connections should
be made with a twisted pair of the appropriate gauge, with an overall foil and braid shield. All shields should be terminated at
the DVP-120 or DVP-1200 end of the cable only. A ground stud is provided near the bottom left corner of the DVP-120 or DVP-
1200 panel.
REV – 1.0 [34-2900-0510-9 ]
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