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WIRING FOR SOLID STATE RELAY OUTPUT AND/OR SECONDARY OUTPUT
REMOTE SETPOINT INPUT

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 955-257 1.12  WIRING FOR ANALOG OUTPUT PRIMARY AND/OR SECONDARY (4/20 mADC OR 0/5VDC OUTPUT) The part number will specify which outputs are  included in  each  unit.    Since  the  Solid  State  Relay  and  Analog Output  use  the  same  terminals  only  one  type  can  be provided on each output.  Output type is not changeable in the field. NOTE: Maximum  Load  Resistance  =  1K for 4/20 mA output. Minimum Load Resistance = 1K for 0-5 VDC output. Standard controllers with analog output(s) have a common connection between the input and output circuits.  Grounding both input and output may cause controller damage and loss of control.  Isolated input or output are available if required. 1.13  ALARM/TIMER RELAY WIRING Two independent electromechanical alarm relays rated 1 amp at 240 VAC resistive load are included.  Both normally open (NO) and normally closed (NC) terminals are provided with one common return (C) for each relay. Terminal  designations  normally  refer  to  the  de-energized  state  i.e.    no  power  to  the  relays.    To  provide  reliable  alarm indication, the relays in this controller are energized during normal operation of the controller.  When wiring to these relays be sure to keep this in mind.  Before power is applied  to  the  controller  and  when  the  alarm(s)  is  ON,  the  relay  terminal designations are as shown below.  During normal operation with no alarms ON, the relays are the reverse of that shown below. Special  care  should  be  taken  when  wiring  these  relays  to  inductive  devices  such  as  coils  and    transformers.  Noise suppressors  as shown on the diagram are important to prevent electrical noise from being generated.  See Section 1.6. The Part Number specifies  the type  of Alarm/Timer  relay action. Alarm/Timer relay action can be reconfigured if required without having to rewire the relay by following the instructions in Section 6. ECLIPSE INSTRUMENTATION DIVISION page 3 - 1086







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