Honeywell DCP552 Mark II user manual PV event, Basic specifications

Chapter 5. FUNCTIONS

•When there is a G.SOAK at the end of the previous segment, the On Time in the next segment is ignored if it is set to 0. (See segments 11 and 12 in the figure.) Thus the ON = 0 of segment 12 is not output at the end of the set time for segment 11, but when the G.SOAK wait ends.

•This function can be combined with an event ON delay set using PARA. Delay works when an event goes from off to on. A delay is not triggered when an On Time continues across two segments as shown in segments 5 and 6 in the figure.

●PV event

Segment			11
On-time		Segment time		G.SOAK wait
Off-time
Output-ON
Output-OFF
Segment			12
On-time	ON=0
Off-time
Output-ON
Output-OFF

Time

•Basic specifications

The difference between PV, deviation, absolute value deviation, SP and MV for each event type is shown on the following pages. The thick lines show ON and OFF conditions. The upper line indicates ON and the lower line indicates OFF conditions.

EV indicates the event set value and H indicates the hysteresis value. Outputs in READY mode are OFF. But normal PV1 upper and lower limit operation and normal PV2 upper and lower limit operation events run also in the READY mode.

•Event standby

Standby events operate as described below.

•If the event is in the gray area shown in the figure during a change from READY to RUN mode or when the power is restored after an outage, the event operates without a standby. The upturned arrows in the figures indicate ON while the downturned arrows indicate OFF.

•If the event is outside the gray area shown in the figure during a change from READY to RUN mode or when the power is restored after an outage, it

remains off until it enters the gray area .

After entering the gray area , the upturned arrows in the figures indicate

ON while the downturned arrows indicate OFF.

A standby event is off in the READY mode.

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