Watlow Series SD31 PID with Optional Countdown Timer - Manual (Page 27)

Wa t l o w S e r i e s S D 3 1
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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)
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) 0 *308, 309
R/W Output 1 is a process
output
(SD_ _ - _ _ _ F - _
_ _ _ ) and [Ot`1] is set
to [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
dc
*310, 311
R/W Output 1 is a process
output
(SD_ _ - _ _ _ F - _
_ _ _ ) and [Ot`1] is set
to [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
(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
(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]
[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]
or
[CooL] and output
type is SD _ _ - _ _ C _ - _
_ _ _ or SD _ _ - _ _ K _ -
_ _ _ _ .
[Ftb2]
[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
dc
[Ot`2] is set to [hEAt]
or
[CooL], and [Ctr2] is
[`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]
or
[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]
or
[CooL], [Ctr2] is set
to [`Ftb] and Output 2
is not a communications
output.
(not SD_ _ - _ _ U _ -
_ _ _ _ )