Pulsafeeder Pulsar DLC - Manual (Page 17)

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5.4.3 Alarm Relay
The Alarm Relay is an output that is configured by the operator. Refer to Section 7 – General
Operation for specific instructions on how to activate the Alarm Relay. The Alarm Relay Load must
not exceed 1 Amp at rated voltage. Connect the Alarm load to the J2 terminal block labeled 'ALARM
RELAY OUT.' Use 22 AWG wire size. Make three connections: Neutral, Earth (ground) and Hot as
labeled.
5.5 Low Voltage Input Connections
There are two types of Low Voltage inputs: Current (e.g., 4-20mA) and Dry Contact. The Low Voltage
Input connection block is labeled J4 'INPUT' (refer to Figure 5). It contains three pairs of inputs:
Current 1, Alarm and Level.
Figure 5 – Low Voltage Input
T HE DRY CONTACT INPUTS ARE SELF - POWERED . S UPPLY ONLY A MECHANICAL SWITCH
CLOSURE TO ACTIVATE . D O NOT ATTACH EXTERNALLY POWERED CIRCUITRY .
T HE WIRE USED TO CONNECT L OW V OLTAGE I NPUTS , AND S ERIAL C OMMUNICATIONS SHOULD
BE RUN IN A CONDUIT SEPARATE FROM THE H IGH V OLTAGE P OWER . D O NOT COMBINE H IGH
V OLTAGE ( I . E ., GREATER THAN 100VAC) LINES AND L OW V OLTAGE ( I . E ., LESS THAN 32VDC)
LINES IN A COMMON CONDUIT ! F AILURE TO COMPLY WILL RESULT IN ELECTRICAL
INTERFERENCE THAT MAY RESULT IN IMPROPER ( AND POSSIBLY UNSAFE ) OPERATION .