Honeywell P520 User Manual

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USER MANUAL
Put Bar Code Here
66-2066-01
P520 Signal Processor
APPLICATION
The Honeywell P520 is a rack mounting signal processor 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 series models S550B/BE,
S552B/BE and S556B/BE. There is only one model of the
P520 available, which is DC powered. A rear backplane PC
Board is required for termination (order part number
REARPCB separately for initial installation).
FEATURES
Rack mounted system, designed to conform to the DIN
41494 19 inch card frame system
3U high and 21HP wide, or 5.06 x 4.18 inches with a
length of 8.66 inches (220mm)
Once rack mounted, together with a power supply and
appropriate viewing head makes up a complete flame
monitoring system
SPECIFICATIONS
Electrical Ratings
Input Power: 22 - 26VDC, 130mA (plus 100mA for each
Viewing Head.)
Battery Backup: 24VDC, 130mA (plus 100mA for each
Viewing Head.) Main Voltage > Battery Voltage
Ambient Temperature:
0°C to 52°C (32°F to 125°F) CSA Rating
0°C to 60°C (32°F to 140°F) FM Rating
Outputs:
Flame Relay: 2 Form C Contacts (DPDT)
Self-Checking Relay: 1 Form C Contact (SPDT)
Contact Ratings: 5A at 30 VDC, 125 VAC and 277 VAC
Max switching voltage 220Vdc, 250Vac
Analog Flame Signal: 0 to 19.8mA current output for
remote meters and 4 to 19.8mA output. (360 ohm max.
resistance.)
Power to Viewing Head:
+26VDC maximum, fused 0.25A (self-resetting)
+14.3VDC pulsing 0.2 seconds ON, 0.8 seconds OFF
Inputs:
Channel Select (Isolated Input):
7.5-30VDC range
Input resistance 3900 ohms
26VDC maximum, 6.4mA
10VDC, 2.3mA
Flame Signal from Viewing Head (Isolated Input):
7.5-30VDC range
Input resistance 3900 ohms
13.6VDC, 3.2mA
Serial Communications:
RS-422 (Differential)
4800 or 9600 baud (user selected)
4 wire / 2 twisted pair
Cable (between viewing head and signal processor):
4 conductor, #16 AWG or #18 AWG, one wire shielded with
braided shield for flame signal. Honeywell C328 cable is
recommended.
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Summary of Contents

Page 1 - P520 Signal Processor

USER MANUALPut Bar Code Here66-2066-01P520 Signal ProcessorAPPLICATIONThe Honeywell P520 is a rack mounting signal processor that is compatible with v

Page 2 - INSTALLATION

P520 SIGNAL PROCESSOR66-2066—01 10TROUBLESHOOTINGModule CommunicationsThe P520 communicates with any host computer that has a USB port and supports AS

Page 3 - Wiring the Rear PC Board

P520 SIGNAL PROCESSOR11 66-2066—01To change or check the station number of the P520, proceed as follows:1. Press and hold the Reset button for 4 secon

Page 4 - RX- RX+ RX- RX+

P520 SIGNAL PROCESSOR66-2066—01 12address 2). To change to 9600 baud, increase the display past 4863. The next display will be 9600, which is 9600 bau

Page 5 - Wiring the Viewing Head

P520 SIGNAL PROCESSOR13 66-2066—01Fig. 8. P520 with S550B/BE programming flowchart.PRESS BOTH A & B BUTTONS“CAL?”CALIBRATE VIEWINGHEAD? NN “CALU”A

Page 6 - OPERATION

P520 SIGNAL PROCESSOR66-2066—01 14Fig. 9. P520 with S552B/BE programming flowchart.PRESS BOTH A & B BUTTONS“CAL?”CALIBRATE VIEWINGHEAD? NNNORMAL O

Page 7 - Changing Set Points

P520 SIGNAL PROCESSOR15 66-2066—01Fig. 10. P520 with S556B/BE programming flowchart.PRESS BOTH A & B BUTTONS“CAL?”CALIBRATE VIEWINGHEAD? NN “CALU”

Page 8 - 4-20mA Remote Output

P520 SIGNAL PROCESSORAutomation and Control SolutionsHoneywell International Inc.1985 Douglas Drive NorthGolden Valley, MN 55422customer.honeywell.co

Page 9 - PROCEDURES

P520 SIGNAL PROCESSOR66-2066—01 2Fig. 1. P520 front faceplate dimensions.Fig. 2. P520 side view dimensions.INSTALLATIONWhen Installing this Product…1.

Page 10 - TROUBLESHOOTING

P520 SIGNAL PROCESSOR3 66-2066—013. Install a ground wire from the ignition transformer case to the igniter assembly.4. Ensure all igniter wires and c

Page 11 - 11 66-2066—01

P520 SIGNAL PROCESSOR66-2066—01 4Fig. 3. Rear PCB terminal wiring.Polarity must be observed when wiring this connection (the positive terminal is on t

Page 12 - 66-2066—01 12

P520 SIGNAL PROCESSOR5 66-2066—01Wiring the Viewing HeadWiring of the viewing head is made to the terminals on the rear backplane PCB. These terminals

Page 13 - P520 SIGNAL PROCESSOR

P520 SIGNAL PROCESSOR66-2066—01 6IMPORTANTSource impedance resistor required at the signal processor between SC and SIG GND terminals for proper signa

Page 14

P520 SIGNAL PROCESSOR7 66-2066—01Verifying the validity of the gain code received is one of the tasks performed by the processor in the viewing heads.

Page 15

P520 SIGNAL PROCESSOR66-2066—01 8change the displayed value. Once the desired value is displayed, press the STORE button. When the set point is stored

Page 16 - Golden Valley, MN 55422

P520 SIGNAL PROCESSOR9 66-2066—01SETUP AND ADJUSTMENT PROCEDURESSighting AdjustmentBefore making definitive settings (i.e., establishing the set point

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