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Фрагмент инструкции
4. Wiring subbase and sequence for RM7800M/RM7840M. 9 66-1085—04 RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES HONEYWELL POWER PILOT FLAME MAIN ALARM RESET (STANDARD ON RM7800E,G,L,M) PURGE TIMER WIRING SUBBASE CAPTIVE MOUNTING SCREW RUN/TEST SWITCH CONFIGURATION JUMPERS RELAY MODULE SEQUENCE STATUS LED PANEL RESET BUTTON FLAME AMPLIFIER SCROLL MODE -SAVE - BURNERCONTROL M16353 RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES HONEYWELL POWER PILOT FLAME MAIN ALARM RESET (STANDARD ON RM7800E,G,L,M) PURGE TIMER WIRING SUBBASE CAPTIVE MOUNTING SCREW RUN/TEST SWITCH CONFIGURATION JUMPERS RELAY MODULE SEQUENCE STATUS LED PANEL RESET BUTTON FLAME AMPLIFIER SCROLL MODE -SAVE - BURNERCONTROL M16353 KEYBOARD DISPLAY MODULE SAFETY SHUTDOWN Safety Shutdown (Lockout) occurs if any of the following occur during the indicated period: 1. INITIATE Period: a. Purge card is not installed or is removed. b. Purge card is bad. c. Configuration jumpers are changed (after 200 hours of operation). d. Ac line power errors occurred, see Operation section. e. Four minute INITIATE period has been exceeded. 2. STANDBY Period: a. Flame signal is present after 240 seconds. b. Preignition Interlock is open an accumulative time of 30 seconds. c. Interlock check feature is enabled and the Interlock String (including airflow switch) is closed for 120 seconds with controller closed. d. Ignition/pilot valve/intermittent pilot valve terminal is energized. e. Main valve terminal is energized. f. Internal system fault occurred. g. Purge card is not installed or is removed. h. Purge card is bad. 3. PREPURGE Period: a. Preignition Interlock opens anytime during PREPURGE period (RM7840E,L). b. Flame signal is detected after first ten seconds during PREPURGE (RM7840E,L). c. High Fire Switch fails to close within four minutes and fifteen seconds after the firing rate motor is commanded to drive to the high fire position at the start of PREPURGE (RM7840E,L). d. Low Fire Switch fails to close within four minutes and fifteen seconds after the firing rate motor is commanded to drive to the low fire position at the end of PREPURGE. e. Running Interlock does not close within 30 seconds (RM7840G,M). f. Lockout Interlock does not close within 10 seconds (RM7840E,L). 66-1085—04 10 RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES . Lockout Interlock opens during PREPURGE (RM7840E,L). h. Ignition/pilot valve/intermittent pilot valve terminal is energized. i. Main valve terminal is energized. j. Internal system fault occurred. k. Purge card is removed. l. Purge card is bad. 4. PILOT FLAME ESTABLISHING Period (PFEP): a. Low Fire Switch opens. b. Lockout Interlock opens (RM7840E,L). c. Ignition/pilot valve/intermittent pilot valve terminal is not energized. d. Early spark termination terminal is energized after five seconds. e. No flame is present at the end of PFEP. f. Main valve terminal is energized (RM7800G,M). g. Internal system fault occurred. h. Purge card is removed. i. Purge card is bad. 5. MAIN FLAME ESTABLISHING Period (MFEP): a. Low Fire Switch Opens. b. Lockout Interlock opens (RM7840E,L). c. Ignition/pilot valve/intermittent pilot valve terminal is not energized. d. Main valve terminal is not energized. e. No flame is present at the end of MFEP. f. Internal system fault occurred. g. Purge card is removed. h. Purge card is bad. 6. RUN Period: a. No flame is present. b. Lockout Interlock opens (RM7840E,L). c. Interrupted pilot valve terminal is energized (RM7840G,M). d. Main valve terminal is not energized. e. Internal system fault occurred. f. Purge card is removed. g. Purge card is bad. 7. POSTPURGE Period: a. Preignition Interlock does not close in five seconds and opens after five-second time period. b. Ignition/pilot valve/intermittent pilot valve terminal is energized. c. Main valve terminal is energized. d. Internal system fault occurred. e. Purge card is removed. f. Purge card is bad. OPERATION Sequence of Operation The RM7800/RM7840 has the following operating sequences, see Fig. 2, 3, 4, and Table 6. The RM7800/RM7840 LED provide positive visual indication of the program sequence: POWER, PILOT, FLAME, MAIN and ALARM. Initiate The RM7800/RM7840 enters the INITIATE sequence when the Relay Module is powered. The RM7800/RM7840 can also enter the INITIATE sequence if the Relay Module verifies voltage fluctuations of +10/-15 percent or frequency fluctuations of +/-10 percent during any part of the operating sequence. The INITIATE sequence lasts for ten seconds unless the voltage or frequency tolerances are not met. When the tolerances are not met, a hold condition is initiated and displayed on the VFD for at least five seconds. When the tolerances are met, the INITIATE sequence restarts. If the condition is not corrected and the hold condition exists for four minutes, the RM7800/RM7840 locks out. Causes for hold conditions in the INITIATE sequence: a. AC line dropout is dete...
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