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Honeywell P520 - page 1
USER MANU AL Put Bar Code Here 66-2066-01 P520 Signal Pr ocessor APPLICATION The Hone ywell P520 is a rac k mounting signal proc essor that is compatible with viewing heads in the S5XX and S55XB/BE series. These include models S506, S509 , S511 and S512 , and the advanced viewing head seri es models S550B/BE, S552B/BE and S556B/BE. There is only on ...
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Honeywell P520 - page 2
P520 SIGNAL PROCESSOR 66-2066—0 1 2 Fig. 1. P520 front faceplate dim ensions. Fig. 2. P520 side view dimensions. INSTALLATION When Installing this Product… 1. Read these instr uctions carefully . F ailure to follo w them could damage the pro duct or cause a hazardo us condition. 2. Check the r atings given in the instructions and on the product ...
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Honeywell P520 - page 3
P520 SIGNAL PROCESSOR 3 66-2066—01 3. Install a ground wire from the igni tion transformer case to the igniter assembly . 4. Ensure all igniter wires and cables show no signs of wear . Replace any igniter cab les or wires that are fra yed or crac ked. 5. The viewing head must be elec tr ically isolated from the bu r ner front. a. Electrical isola ...
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Honeywell P520 - page 4
P520 SIGNAL PROCESSOR 66-2066—0 1 4 Fig. 3. Rear PCB terminal wiring. P olar ity must be observed when wiri ng this connection (the positive terminal is o n the top). This is an is olated input, so two wires are required. Any DC voltage from 7.5 to 30 may be used. The cu rrent required will depend upon the voltage, because this is a photocoupler ...
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Honeywell P520 - page 5
P520 SIGNAL PROCESSOR 5 66-2066—01 Wiring the Vie wing Head Wiring of the viewing head is made to the ter minals on the rear backplane PCB. These termina ls are described as follows: Fig. 4 and 5 show f o ur-conductor cable to the viewing head. Note that the flame signal wi re going to ter minal SIG is shielded, and the shield is ter minated at b ...
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Honeywell P520 - page 6
P520 SIGNAL PROCESSOR 66-2066—0 1 6 IMPORTANT Source impedance resistor required at the si gnal processor between SC and SIG GND ter minals for proper signal trans- mission. F or resistor value, ref er to the Wir ing of the Viewing Head section. Fig. 5. Wiring connect ions for S550B E, S552BE and S556BE viewing heads. A source impedance resistor ...
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Honeywell P520 - page 7
P520 SIGNAL PROCESSOR 7 66-2066—01 V erifyin g the v alidity of the ga in code rece iv ed is one o f the tasks performed by the processor in the viewing heads. The self-check pulse from the signal p rocessors is a 100ms-wide, 20V to 24V pulse with two notche s or breaks in it. The position of each of the two notches communicates a gain cod e one ...
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Honeywell P520 - page 8
P520 SIGNAL PROCESSOR 66-2066—0 1 8 change the display ed value. Once the desired value is display ed, press the ST ORE button. When the set point is stored, four dashes are display ed momen tarily , indicating that the new v alue was stored into the EEPROM. Illogical settings are not accepted; A display of f our “E’ s” when the ST ORE butt ...
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Honeywell P520 - page 9
P520 SIGNAL PROCESSOR 9 66-2066—01 SETUP AND ADJUSTMENT PR OCEDURES Sighting Adjustment Bef ore making definitiv e settings (i.e., estab lishing the set points) for FLAME ON/OFF , the us er must f irst opti mize the sighting of the viewing head. F o r detailed mounting and sighting information, refer to the applicab le literature for the viewing ...
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Honeywell P520 - page 10
P520 SIGNAL PROCESSOR 66-2066—0 1 10 TR OUBLESHOO TING Module Comm unications The P520 communicates with any host computer that has a USB por t and suppor ts ASCII character code transmission at 4800 baud (or , in current revisions of the processor chip, at 4800 or 9600 ba ud). The baud rate i s displayed with the module address in the current ve ...
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Honeywell P520 - page 11
P520 SIGNAL PROCESSOR 11 66-2066—01 T o change or check the station number of the P520, proceed as f ollows: 1. Press and hold th e Reset button for 4 seconds. 2. The 4 LED digits will show the baud rate and the station number . The 2 leftmost digits are the baud rate (96 or 48); the 2 righ tmost digits are station number fro m (0 to 63). 3. Pres ...
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Honeywell P520 - page 12
P520 SIGNAL PROCESSOR 66-2066—0 1 12 address 2). T o change to 9600 baud, in crease the display past 4863. The ne xt display will be 9600, which is 9600 baud, address 0. Then increase the display fur ther to the desired address. T o retur n to 4800 ba ud, reduce the display below 9600, and set the desired address. Fig. 6. T ypical Communications ...
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Honeywell P520 - page 13
P520 SIGNAL PROCESSOR 13 66-2066—01 Fig. 8. P520 with S550B/BE programming flowchart. PRESS BOT H A & B BU TTO N S “CAL ? ” CALI BR ATE VI EW ING HEAD? N N “CAL U” AUTO ADJ UST UV GAIN? N NO RMAL O PERA TIO N C AL IBRAT E U V Y Y C AL IBRAT E I R Y “AUNN” ADJUST U V G AIN 0- 99 Y NO RMAL O PERA TIO N N Y N DIS CARD CHA NGE S NORMA ...
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Honeywell P520 - page 14
P520 SIGNAL PROCESSOR 66-2066—0 1 14 Fig. 9. P520 with S552B/BE programming flowchar t. PRESS BOT H A & B BU TTO N S “CAL ?” CALI BR ATE VI EW ING HEAD? N N NO RMAL O PERA TIO N Y CA LI B R A TE IR Y Y NORMAL OPERATION N NO RMAL O PE RAT ION Y KEEP NEW FIL TER SELE CT IO N “ARF N” ADJ UST IR FI LTER 1- 8 “ANNN” ADJ UST IR GAI N 0- ...
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Honeywell P520 - page 15
P520 SIGNAL PROCESSOR 15 66-2066—01 Fig. 10. P520 with S556B/ BE programming flo wchar t. PRESS BOT H A & B BU TTO N S “CAL ?” CALI BR ATE VI EW ING HEAD? N N “CAL U” AUT O A DJUST UV GAIN? NORMAL OPERATION C AL IBRAT E U V Y Y “AU NN” ADJ UST UV GAIN 0- 99 Y NO RMAL O PE RAT ION PROGRAMMING FLOWCHART FOR P520 WITH S556B/BE Y N DI ...
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Honeywell P520 - page 16
P520 SIGNAL PROCESSOR Automation and Co ntrol Solutions Honeywell Internationa l Inc. 1985 Douglas Drive North Golden Valley, MN 55422 customer.honeywell.com ® U .S. Re gistered T rademark © 2012 Hone ywell International Inc. 66-2066—01 M.S. 10- 12 Printe d in United St ates ...
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