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Chapter 4. Explanation of Operation

Operation when a flame failure occurs (Non-recycling gas-fired combustion)

Input

AUR890 operation

Sequence

codes

Operation of external devices

Power ON

When approximately 8 seconds have passed after the power has

been turned on, the 7-segment LED display on the front panel of

the AUR890 shows the sequence code [- -].

- -

Burner operation

switch ON

- -

When the burner operation switch is turned

on, the blower starts to operate, and if the

limit and interlock conditions are normal, a

prepurge is done. After the prepurge, the

prepurge completion signal is turned ON.

Blower: operating

Controller ON

If the prepurge completion signal is ON and the controller turns

ON, the sequence that follows is start check, ignition standby,

lockout time, standby for normal combustion, and normal

combustion.

The FLAME LED (green) on the front panel of the AUR890 lights up.

Pilot valve : open

Main valve : open

During main burner combustion, if a flame failure of the burner

occurs for some reason, after the flame failure response time has

passed, the AUR890 will be locked out so that relays K1, K2, K3,

and K4 turn OFF, the pilot and main valves close, relay K6 turns

ON, and the alarm output turns ON.

FLAME LED (green) on the front panel of the AUR890 turns off,

and ALARM LED (red) turns on.

Pilot valve : closed

Main valve : closed

Alarm output : ON

Burner operation

switch OFF

Blower : stop

Contact reset or

main unit reset

switch: ON

Relay K6 turns OFF to turn OFF the alarm output.

The ALARM LED (red) on the front panel of the AUR890 turns off.

- -

Alarm output : OFF

––

Stop

Star

t check

Ignition standb

Lockout timing

P8/E7

Main bur

ner c

ombustion standb

RUN

Stop

Flame failur

Lockout

AUR890

Prepurge time

(external circuit)

Start check + Ignition standby time

Approximately 3 s

Approximately 8 s

Lockout timing time

Flame response

Main burner combustion standby time

Reset time

1 s or longer

[Input]

Power supply

[7-segment display]

Limit, Interlock

[Output]

Ignition transformer

Burner operation switch

Blower

Controller

Flame signal

RESET switch

[LED]

FLAME LED (Green)

Alarm output

Pilot valve

Main valve

ALARM LED (Red)

Содержание 81447514-001

Страница 1: ...the product Those designing or maintaining equipment that uses this product should first read and understand this manual This manual contains information not only for installation but also for mainten...

Страница 2: ...ations in this manual are subject to change without notice Considerable effort has been made to ensure that this manual is complete and accurate but if you should find an omission or error please cont...

Страница 3: ...ng this product may result in minor injury or property damage only In describing the product this manual uses the icons and conventions listed below Indicates that caution is required in handling The...

Страница 4: ...r device manufacturer If it does fuel will accumulate in the combustion chamber and form an explosive mixture resulting in a very dangerous situation in which an explosion could occur Before mounting...

Страница 5: ...thin its product life If lockout occurs be sure to do a prepurge before restarting the system If the combustion chamber and gas flue are not ventilated to remove any unburned gas the ignition process...

Страница 6: ...eratures Prolonged vibration For mounting and wiring follow the instructions in this user s manual or in manuals provided by the combustion equipment manufacturer Follow all applicable regulations whe...

Страница 7: ...llation 6 When the sub base Model BC R05A100 is used 7 When the base unit Q890A100 for model RA890 replacement is used 9 Terminal numbers front panel item names 11 Example of wiring connection with ex...

Страница 8: ...enance and Inspection General maintenance and inspection 41 Maintenance and inspection cycle 41 Alarm codes and details 42 Failure inspection flow 43 Chapter 7 Specifications External dimensions 46 Te...

Страница 9: ...ossible to output the operational status to external devices Alarms can be reset by an input signal contact input Perform fault diagnosis for the internal control relay circuit DIN rail mounting and s...

Страница 10: ...ice correctly according to this user s manual The device must be installed wired maintained inspected and adjusted by experienced specialists who have gained knowledge and skills concerning combustion...

Страница 11: ..._ Advanced ultraviolet flame detector 1 2 inch mounting model Without G1 2 adapter AUD15C1000 sold separately AUD120C121_ With G1 2 adapter AUD15C1000 sold separately _ The box stands for one of the f...

Страница 12: ...dless of the status of the burner controller Do not extend the lead wires of the reset input for more than the allowable length of 10 meters If the device is reset from a location where it is difficul...

Страница 13: ...this device This device does not start operation until about 8 seconds after power on Do not design instrumentation that shuts off the power to this device as soon as alarm output is generated Doing s...

Страница 14: ...this device Do not connect a load exceeding the rated power to the control load terminals 6 7 8 of this device or short the load terminals Doing so will burn the fuse out making this device unusable...

Страница 15: ...N rail while checking above and below the sub base 3 Push up the DIN rail clamp to attach the sub base to the DIN rail z z Mounting in a panel 1 Drill two M4 screw holes into the panel Unit mm 2 Use s...

Страница 16: ...rately z z Mounting 1 Align the indentation in the center of the top of the device with the projection on the sub base 2 Once aligned as in 1 push straight downwards slowly 3 Tighten the device s reta...

Страница 17: ...llustrated below z z Mounting in a panel 1 Cut three 5 mm diameter holes in the panel Unit mm 2 Loosen the four retaining screws to remove the upper part of the replacement base unit Display area AUR8...

Страница 18: ...ower part of the replacement base unit and then connect the cable connectors of the upper part of the base unit to the connectors on the lower part 5 After connecting the connectors attach the upper p...

Страница 19: ...F 3 AC power supply L2 N 15 Flame detector G 4 NC 16 Input common 1 5 NC 17 Input common 2 6 Ignition transformer output 18 NC 7 Pilot valve output 19 NC 8 Main valve output 20 External controller for...

Страница 20: ...ront wiring 81447514 001 terminal layout z z Connector for front wiring for right side wiring 81447514 002 terminal layout 25 35 Mounting screw Wiring Wiring fastener screw Mounting screw 25 35 Wiring...

Страница 21: ...supply L2 N 3 Pilot valve output 4 Ignition transformer output 5 Main valve output 6 Line voltage temp controller T Low voltage temp controller Non voltage contacts T F Flame detector G COM Alarm outp...

Страница 22: ...eset input terminal 24 must be used by a single AUR890 unit only Do not use it as the contact reset input of other AUR890 units G F K3 L2 N Circuit breaker Prepurge completion signal Line voltage temp...

Страница 23: ...Circuit breaker Prepurge completion signal Line voltage temp controller 1 Low voltage temp controller 1 L1 Fueloilvalve Two level fuel oil valve K4 NC NC NC Alarm output COM NC NC NC NC NC NC NC NC N...

Страница 24: ...5A100 5 L1 Circuit breaker L2 N Line voltage temp controller 1 Prepurge completion signal 1 Burner on off circuit Limit interlock circuit Blower operation circuit prepurge circuit AC input circuit 6 8...

Страница 25: ...BC R05A100 5 L1 Circuit breaker L2 N Line voltage temp controller 1 Prepurge completion signal 1 Burner on off circuit Limit interlock circuit Blower operation circuit prepurge circuit AC input circu...

Страница 26: ...to a rectification flame rod Blue White Terminal 14 F G Terminal 15 Terminal Terminal 14 F G Terminal 15 F G If connection of the blue and white lead wires is reversed or if the connections to termin...

Страница 27: ...s with JIS C 3306 Attach 187 Faston receptacle at one end and make the wire length as short as possible when connecting it z z Connections when BC R05A100 sub base is used z z Connections when Q890A10...

Страница 28: ...led fuel flow will not occur if there is a ground fault due to insulation failure on the high potential side H z z Wrong method of connection If the solenoid valve is connected to the high potential s...

Страница 29: ...r 17 for 1 second Note After the lockout is canceled start input is not accepted for approximately 5 seconds z z DISP switch z zDuring normal operation The 7 segment display shows a sequence code Ever...

Страница 30: ...odes Alarm codes Sub code Description E 1 None Interlock error E6 Ignition failure E7 Flame failure E9 02 Switch input E9 03 Internal relay feedback K1 E9 05 Abnormal voltage on terminal 7 PV E9 06 Ab...

Страница 31: ...rminal 17 to terminal 20 2 The contact reset input terminal 24 must be used by a single AUR890 unit only Do not use it as the contact reset input of other AUR890 units G F K3 L2 N Circuit breaker Prep...

Страница 32: ...2 N Circuit breaker Prepurge completion signal Line voltage temp controller 1 Low voltage temp controller 1 L1 Fueloilvalve Two level fuel oil valve K4 NC NC NC Alarm output COM NC NC NC NC NC NC NC N...

Страница 33: ...R05A100 5 L1 Circuit breaker L2 N Line voltage temp controller 1 Prepurge completion signal 1 Burner on off circuit Limit interlock circuit Blower operation circuit prepurge circuit AC input circuit...

Страница 34: ...90 BC R05A100 5 L1 Circuit breaker L2 N Line voltage temp controller 1 Prepurge completion signal 1 Burner on off circuit Limit interlock circuit Blower operation circuit prepurge circuit AC input cir...

Страница 35: ...p Main valve open 103X ON TM1 s contacts ON Burner operation switch OFF When the burner operation switch is turned OFF relays K1 K2 K3 and K4 turn off and the pilot and main valves begin to close The...

Страница 36: ...and external timer TM1 turns ON P4 Ignition transformer start Pilot valve open TM1 starts When the time set for TM1 has passed after the start of ignition transformer operation TM1 s contacts turn off...

Страница 37: ...the flame failure response time has passed the AUR890 will be locked out so that relays K1 K2 K3 and K4 turn OFF the pilot and main valves close relay K6 turns ON and the alarm output turns ON FLAME L...

Страница 38: ...e After the prepurge the prepurge completion signal is turned ON Blower operating Controller ON If there is a false flame signal before the controller turns ON after the prepurge completion signal and...

Страница 39: ...Ignition transformer continues operation Fuel oil valve remains open When the flame detector detects the flame from the fuel oil valve fuel relay K5 turns OFF the ignition transformer stops relay K4 t...

Страница 40: ...ays K1 K2 K3 and K5 turn ON the ignition transformer starts the pilot valve begins to open and external timer TM1 turns ON P4 Ignition transformer start Fuel oil valve open If the flame detector does...

Страница 41: ...passed the AUR890 will be locked out At that time relays K1 K2 K3 and K4 turn OFF the fuel oil valve and two level fuel oil valve close relay K6 turns ON and the alarm output turns ON The FLAME LED gr...

Страница 42: ...epurge is done After the prepurge the prepurge completion signal is turned ON Blower operating Controller ON If there is a false flame signal before the controller turns ON after the prepurge completi...

Страница 43: ...llation wiring maintenance inspection and adjustment must be carried out by a professional with technical training in combustion equipment and combustion safety equipment The pilot turn down test shou...

Страница 44: ...prevents the spark s ultraviolet radiation from entering the optical path of the ultraviolet sensor Adjust so that the spark s effect on the flame signal is 0 4 V DC or less If the S7200A___GH_ or S72...

Страница 45: ...ltage or frequency is not correct The air supply pressure or air fuel ratio is not correct The flame detector is not correctly wired Open circuit Short circuit High resistance short circuit of the lea...

Страница 46: ...t is configured with an external timer A flame failure can occur if an ignition attempt is made just before the ignition time expires This is because the supply of power to the pilot valve and main va...

Страница 47: ...eliably ignite the main burner Before and after this test make sure to measure the flame voltage and confirm that it is 2 0 V or more 1 Turn off the power to the combustion equipment to stop all devic...

Страница 48: ...e prepurge pilot burner ignition is attempted Since the manual cock is closed however the pilot burner does not ignite and lockout occurs After confirming the above behavior open the manual cock Turn...

Страница 49: ...ot turn down test Inspection must be done at least once a year Inspect the combustion equipment periodically in accordance with the instructions given in the manual provided by the equipment manufactu...

Страница 50: ...et E9 08 Alarm generation when power is turned ON When the cause of lockout cannot be identified Power was turned off before CPU error judgment after lockout occurred Latch relay was set to lockout du...

Страница 51: ...lace this device Replace this device Main burner ignites Extinguished Alarm sounds Was FLAME LED of this device lit Inspect wiring of this device Replace this device Inspect wiring of this device Repl...

Страница 52: ...me rod Ionization Flame establishment 1 5 4 5 V DC Flame out detection 0 2 0 6 V DC Flame establishment 1 5 4 5 V DC Flame out detection 0 0 0 1 V DC Flame voltage output Recommended flame voltage Mus...

Страница 53: ...oximately 600 g incl sub base Wiring types and max wiring length Low voltage temp controller 600 V PVC insulated copper wire cable IV wire JIS C3307 1 25 mm2 recommended length 20 m or less max wiring...

Страница 54: ...BC R05A100 sub base unit mm z z Body Model number A 81447514 001 10 6 81447514 002 14 6 95 110 Sub base sold separately DIN rail clamp Connector for front wiring A 105 27 17 Sub base sold separately A...

Страница 55: ...81447515 001 sold separately DIN rail clamp 95 105 27 17 61 64 62 5 12 knockout hole 12 knockout hole Sub base mounting hole Sub base mounting hole M3 5 terminal screw Knockout hole Knockout hole 16 S...

Страница 56: ...26 23 hole 4 places Grommet 4 places AUR890 main unit fastening screw Screw 4 securing the upper part of the replacement base unit AUR890 main unit fastening screw Screw 4 securing the upper part of t...

Страница 57: ...eplacement purchased separately Sideboard in package M4 ground screw 5 5 37 126 9 5 19 31 25 5 70 Grommet 4 places 23 hole 4 places 126 This dimension is for a product with a date code D C of 1828 or...

Страница 58: ...50...

Страница 59: ...Revision History of CP SP 1380E Printed Edn Revised pages Description Feb 2015 1 Nov 2019 2 Overall revision 2nd ed 7th Jp ed...

Страница 60: ...o your use 3 Measures to be taken to secure the required level of the reliability and safety of your Equipment in your use Although azbil is constantly making efforts to improve the quality and reliab...

Страница 61: ...argin of your machine or equipment you are required to renew any Azbil Corporation s products every 5 to 10 years unless otherwise specified in specifications or instruction manuals System products fi...

Страница 62: ...1 12 2 Kawana Fujisawa Kanagawa 251 8522 Japan URL https www azbil com 11 Specifications are subject to change without notice 1st edition Feb 2015 K 2nd edition Nov 2019 B...

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