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Start-up (Normal Cycle)
EP260 ADDITIONAL MESSAGES

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 Safety Shutdown Causes 1. If pilot flame is not detected during the 10 second trial for     ignition     period,     the     pilot     valve     and     ignition transformer  will  be  de-energized  and  the  control  will lockout on safety. 2. If flame is not detected at the end of the main flame trial   for   ignition   period,   all   fuel   valves   will   be   de- energized and the control will lockout on safety. 3. If  the  main  flame  fails  during  a  firing  cycle,  all  fuel valves will be de-energized within 4 seconds after loss of flame signal and the control will lockout on safety. 4. If the M-D or 3-P circuits have not closed after a ten minute wait, a safety lockout will occur and the display will show an appropriate message. 5. Manual reset is required following any safety shutdown. Description of Functions of Operating Controls 1. Operating Controls: Generally pressure or temperature   activated,   the   operating   control   closes, causing the burner startup sequence to begin.  When the operating control opens, the burner shuts off.  The operating control is connected in the L1-13 circuit on the wiring base. 2. Limit switches: These are generally pressure, water level or temperature activated. a. Recycle - When it is desired to stop the burner when the limit switch opens and restart it when the  limit  switch  recloses,  they  are  connected between Terminals L1 & 13. 3. Fuel Valve End Switch Interlock:  This is generally an integral switch mounted on the main fuel valve and activated by the valve stem.  It is connected between Terminal 3 and 13.  The fuel valve end switch interlock prevents a burner start-up if the valve stem is not in the "valve closed" position. NOTE The  use  of  a  Fuel  Valve  End  Switch  is recommended.        All    FLAME-MONITOR systems   have   provision   to   accept   the Fuel Valve End Switch Interlock.  This will add additional safety to prevent hazardous situations. 4. Running  Interlocks:    These  generally  are  air  flow switches,   high   and   low   fuel   pressure   switches,   oil temperature    switches,    atomizing    media     pressure switches, and excess smoke density controls.  These interlocks prove proper conditions for normal operation of the burner.  They are wired in series and connected between Terminals 3 and P. 5. Low Fire Start Interlock:  Generally a firing rate motor linkage position switch or a damper position switch, will prove both the linkage and dampers are in their proper positions   to   begin   burner   light   off.      This   switch   is connected between Terminals M and D. DISPLAY MESSAGES The  FIREYE  FLAME-MONITOR  does  more  than  control the   burner   flame   safeguard   operation   and   sequencing.      It provides   the   operator   or   serviceman   with   important   burner information all the time and it remembers a history of the burner operation. The  following  is  a  complete  listing  of  all  the  messages which   may   be   displayed   on   the   FLAME-MONITOR.      The control has an eight character read-out display.  Messages that are  greater  than  eight  characters  in  length  will  scroll  on  the display from left to right. To gain  the  full  usefulness  of  the  FLAME-MONITOR,  do not   reset   the   control   until   you   are   sure   of   the   message meaning.: DESCRIPTION The burner operating control circuit (L1 13) is open and there is power on terminals L1 and L2. The unit has begun purge, the M terminal has started the blower/burner motor and the "00" indicates that the control is counting in seconds, up to the end of purge. The  control  has  begun  the  pilot  trial  for  ignition  sequence.    The  "00"  indicates  the control will count, in  seconds,  to  the  end  of  the  PTFI,  (unless  flame  is  proven).    If name is proven, note the next message below. While in PTFI, a flame was sensed and the message changes to include a reading of the signal strength, designated by "00". While  the  main  trial  for  ignition  period  (MTFI),  the  display  shows  a  flame  signal reading, designated by "00". Note:  Messages more than 8 characters in length will scroll continuously from right to left on the display. (page 3 - 1070)







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