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Watlow Series SD31 PID with Optional Countdown Timer User Manual

Page 25

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Wa t l o w S e r i e s S D 3 1

23

C h a p t e r 5 S e t u p

Display

Parameter Name

Description

Settings

Range

(Integer values for Modbus

in parentheses.)

Default

Modbus*

(less 40,001

offset)

Read/Write

Appears if:

Note: Some values will be rounded off to fit in the four-character display. Full values can be read with Modbus.

* Low numbers contain the two lower bytes; high numbers contain the two higher bytes of the four-byte integer.
Decimal precision is set in another parameter.

** Timer model only (SD31-XXXX-XTXX)

[ti;En]
[ti.En]

Timer Enable

Set to enable the countdown timer func-
tion.

[`~no] no (0)
[~YEs] yes (1)

[`~no] (0)

391 R/W

Timer model only,
SD31-XXXX-XTXX.
[`Ot1] or [`Ot2]is set
to

[tim].

[hour]
[hour]

Countdown Time Hours

Set the number of hours for the count-
down time.

0-99
hours
(0 to 99000)

0

392 R/W

Timer model only,
SD31-XXXX-XTXX.
[`Ot1] or [`Ot2]is set
to

[tim].

[Min]
[Min]

Countdown Time Minutes

Set the number of minutes for the count-
down time.

0-59
minutes
(0 to 59000)

0

393 R/W

Timer model only,
SD31-XXXX-XTXX.
[`Ot1] or [`Ot2]is set
to

[tim].

[`Sec]
[ SEc]

Countdown Time Seconds

Set the number of seconds for the count-
down time.

0-59
seconds
(0 to 59000)

0

394 R/W

Timer model only,
SD31-XXXX-XTXX.
[`Ot1] or [`Ot2]is set
to

[tim].

[ti;St]
[ti.St]

Timer Start Method

Select the method used to start the timer
sequence.

[imd] Immediate (0)
[~rdy] Ready (1)
[rdy;A] Ready Acknowledge
(2)
[PWr] Power Up (3)

[imd] (0)

399 R/W

Timer model only,
SD31-XXXX-XTXX.
[`Ot1] or [`Ot2]is set
to

[tim].

[ti;SP]
[ti.SP]

Timer Set Point

Select what set point is used during tim-
ing.

[~Off] Off (0)
[trac] Track (1)
[PrE;s] Preset (2)

[trac] (1)

401 R/W

Timer model only,
SD31-XXXX-XTXX.
[`Ot1] or [`Ot2]is set
to

[tim].

[`rdy]
[ rdY]

Ready Band

Set the deviation band, in degrees from
set point, that would be considered a
ready condition.

1-9999
degrees
(1000 - 9999000)

10
(10000)

*395, 396
R/W

Timer model only,
SD31-XXXX-XTXX.
[ti;St] is set to [~rdy]
or [

rdy;A].

[rdy;L]
[rdY.L]

Ready Light Enable

When enabled, the ready light will be lit if
the process value is within the ready
band.

[`~no] no (0)
[~YEs] yes (1)

[`~no] (0)

400 R/W

Timer model only,
SD31-XXXX-XTXX.
[ti;St] is set to [~rdy]
or [

rdy;A].

[Ot`1]
[Ot 1]

Output 1 Function

Set Output 1 function.

[`OFF] Off (0)
[Pr;AL] Process Alarm (1)
[dE;;AL] Deviation Alarm (2)
[hEAt] Heat Control (3)
[CooL] Cool Control (4)
[rMt] Retransmit (6)
[tim] Timer (7)**

[hEAt] (3)

143 R/W

Always active.