Simplicity 14E Specifications download pdf (Page 10)

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FIGURE 9. 65UV5-1004 “CEX” INTERNAL WIRING - COLOR CODE

SELF-CHECK SHUTTER OPERATION

The 65UV5 self-check shutter mechanism is a powered-open, powered-closed device (no return

spring). The open/closed shutter period is variable and controlled by the scanner’s microprocessor.

Upon initial 24 vdc power application, the shutter will close and open once to verify proper opera-

tion. The shutter will then remain open until a UV flame source is present and the internal flame

relay (RF) is energized.

When the flame relay (RF) is energized, the shutter will be driven closed once every 12 seconds. The

amount of time the shutter will remain closed is determined by the scanner’s microprocessor and is

dependent upon the UV tube’s response. The amount of time closed can vary between 50 ms and 300

ms.

In the event of a self-check failure the flame relay will de-energize.

INDICATION LEDs

The 65UV5 contains a color coded internal LED that indicates flame status and alarm condition per

the following table. View LED through lens on back of housing. Refer to Fig. 12 for LED location.

Table 3:

LED STATUS CONDITION FLAME

RELAY (RF)

STATUS

*SHUTTER POSITION

OPEN CLOSED

GREEN OFF NO FLAME DETECTED OFF

ONCE PER

SECOND

FLASHING

RATE

MARGINAL FLAME SIGNAL ON

RAPID

FLASHING

RATE

NORMAL FLAME SIGNAL ON

STEADY ON HIGH FLAME SIGNAL ON

RED OFF NORMAL ON

FLASHING *SELF-CHECK FAILURE

(observe shutter position)

OFF SHUTTER

FAILURE

UV TUBE

FAILURE

ON MICROPROCESSOR ERROR OFF

TERMINAL BLOCK 1

FRONT

(Lens

End)

(Relay Contact Connections)

Note: Connect scanner cable shield to ground lug.

RED

(1)

BLACK

(2)

BLUE

(3)

YELLOW

(4)

GROUND

LUG (Note 1)

TERMINAL BLOCK 2

FRONT

(Lens

End)

(Power Connections)

Product

Label

(5)

WHITE

(6)

BROWN

(7)

GREEN

(8)

ORANGE

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16

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Simplicity 14E Specifications Page 10

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