Flowserve SRL63-A Manual de usuario descargar pdf (Pagina 13)

Start-up, Operation, Alarms and Testing – continued –

SRL 63-a – continued –

Operation

Interval time is running. No pilot lamp is alight. Trouble-free operation

Interval time expires and begins

again.

Green pilot lamp "Standby" is

alight.

Standby period is running.

Perform the purging process

as shown on the PLC display.

Green pilot lamp "Standby"

flashes; yellow pilot lamp

"Bypass" is alight.

Purging time is running.

Low-level limiter is bypassed.

Purging

Val D OPEN

Val E CLOSED

Val F CLOSED

Status on the PLC display in chronological order

Purging

Val D OPEN

Val E CLOSED

Val F OPEN

Purging

Waiting for LW alarm

...37 sec.

Purging

Val D CLOSED

Val E CLOSED

Val F OPEN

Purging

Val D CLOSED

Val E OPEN

Val F OPEN

Purging

Val D OPEN

Val E OPEN

Val F CLOSED

End of purging process Green and yellow pilot lamps

(Standby / Bypass) are extin-

guished.

Bypassing of low-level limiter is

cancelled.

Low-level limiter (LW)

Output contact: level switch

NRS 1-7 / NRS 1-9

Valve D

Valve E

Valve F

Boiler

Setting shown for the

valve limit switches:

Valves in normal

operational position;

low-water level

(electrode exposed)

1 2 ... 8 9 10 11 12 13 14 15 16 17 18

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Flowserve SRL63-A Manual de usuario Pagina 13

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