Watlow Series SD31 PID with Optional Countdown Timer Manuel d'utilisateur télécharger pdf (Page 27)

Watlow Series SD31 ■ 25 ■ Chapter 5 Setup

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)

Caution: Writing to registers continuously, such as ramping set points via comms, will damage the SD31 EEPROM memory. See page 59.

[r1;;hi]

[r1.hi]

Output 1 Retransmit High Scale

Set the high scale for the retransmit

output.

-1999.0 to 9999.0

(-1999000 to 9999000)

*308, 309

R/W

Output 1 is a process

output

(SD_ _ - _ _ _ F - _

_ _ _ ) and

[Ot`1]

is set

[rmt]

[r1;;CO]

[r1.CO]

Output 1 Retransmit Offset

Set the high scale for the process output.

-999.0 to 999.0

(-999000 to 999000)

20.0: mech.

relay

5.0: solid-

state relay

1.0: switched

*310, 311

R/W

Output 1 is a process

output

(SD_ _ - _ _ _ F - _

_ _ _ ) and

[Ot`1]

is set

[rmt]

[ti;F1]

[ti.F1]

Output Timer Function 1

Select the states for a timer output during

the timing sequence.

[dL;On]

Delay On (0)

[dL;OF]

Delay Off (1)

[S9;On]

Signal On (2)

[S9;OF]

Signal Off (3)

[dL;OF]

Delay Off (1)

410 R/W

Timer model only,

SD31-XXXX-XTXX.

[`Ot1]

is set to

[tim]

[S;M1]

[S.M1]

Signal Time Minutes 1

Set the time in minutes for which an out-

put will go to its signal state after the

countdown completes.

0 to 99 minutes

(0 - 99)

(0)

411 R/W

Timer model only,

SD31-XXXX-XTXX.

[`Ot1]

is set to

[tim]

[`S;S1]

[ S.S1]

Signal Time Seconds 1

Set the time in seconds for which an out-

put will go to its signal state after the

countdown completes.

0 to 59 seconds

(0 - 59)

(0)

412 R/W

Timer model only,

SD31-XXXX-XTXX.

[`Ot1]

is set to

[tim]

[Ot`2]

[ Ot2]

Output 2 Function

Set Output 2 function.

[`OFF]

Off

[Pr;AL]

Process Alarm

[dE;AL]

Deviation Alarm

[hEAt]

Heat Control

[CooL]

Cool Control

[tim]

Timer**

[`OFF]

Output 2 is installed

and is not a communica-

tions output.

[Ctr2]

Control Method 2

Set Output 2 control type. This parameter

is only used with PID control, but can be

set anytime.

[`Ftb]

Fixed Time Base

{Urtb]

Variable Time Base

[`Ftb] [Ot`2]

is set to

[hEAt]

[CooL]

and output

type is

SD _ _ - _ _ C _ - _

_ _ _ or SD _ _ - _ _K_ -

_ _ _ _ .

[Ftb2]

Fixed Time Base 2 (Cycle Time)

Set the time base for Fixed Time Base

Control.

1.0 to 60.0 seconds if Out-

put 2 is mechanical relay

0.1 to 60.0 seconds if Out-

put 2 is not a mechanical

relay

20.0: mech.

relay

5.0: solid-

state relay

1.0: switched

[Ot`2]

is set to

[hEAt]

[CooL]

, and

[Ctr2]

[`Ftb]

[PL`2]

[ PL2]

Power Limit 2

Set maximum power output for a control

output.

0.0 to 100.0% power 100.0%

[Ot`2]

is set to

[hEAt]

[CooL]

[PsL2]

[PSL2]

Output Power Scale Low 2

Set the low end of the range within which

the output will scale.

0.0 to 100.0% 0%

[Ot`2]

is set to

[hEAt]

[CooL]

[Ctr2

] is set

[`Ftb]

and Output 2

is not a communications

output.

(not SD_ _ - _ _ U _ -

_ _ _ _ )

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Watlow Series SD31 PID with Optional Countdown Timer Manuel d'utilisateur Page 27

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