User`s manual
Watlow Series SD ■ 30 ■ 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. All temperature parame-
ters are in °F through Modbus.
* Low register numbers contain the two higher bytes; high register numbers contain the two lower bytes of the four-byte integer. Decimal
precision is implied at three decimal places unless otherwise noted.
*** Profiling version only (SD_R-_ _ _ _- _ _ _ _ ).
[Ftb2]
[Ftb2]
Fixed Time Base 2 (Cycle Time)
Set the time base for Fixed Time Base
Control.
1.0 to 60.0 seconds if Output
2 is mechanical relay
(1000 to 60000
0.1 to 60.0 seconds if Output
2 is not a mechanical
relay
(100 to 60000)
20.0: mech.
relay
5.0: solid-
state relay
1.0: switched
dc
*169, 170
R/W
[Ot`2]
is set to
[hEAt]
or
[CooL]
, and
[Ctr2]
is
[`Ftb]
.
[PL`2]
[PL 2]
Power Limit 2
Set maximum power output for a control
output.
0.0 to 100.0% power
(000 to 10000)
(Two decimal places implied
for Modbus.)
100.0%
171 R/W
[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%
(000 to 10000)
(Two decimal places implied
for Modbus.)
0%
172 R/W
[Ot`2]
is set to
[hEAt]
or
[CooL]
,
[Ctr2
] is set
to
[`Ftb]
and Output 2
is not a communications
output.
(not SD_ _ - _ _ U _ -
_ _ _ _ )
[PSh2]
[PSh2]
Output Power Scale High 2
Set the high end of the range within
which the output will scale.
0.0 to 100.0%
(000 to 10000)
(Two decimal places implied
for Modbus.)
100.0%
173 R/W
[Ot`2]
is set to
[hEAt]
or
[CooL]
,
[Ctr2]
is set
to
[`Ftb]
and Output 2
is not a communications
output.
(not SD_ _ - _ _ U _ -
_ _ _ _ )
[nLF2]
[nLF2]
Output Non-linear Function 2
Select a non-linear output curve to match
the response of your system.
[`OFF]
Off (0)
[Cru1]
curve 1 (1)
[Cru2]
curve 2 (2)
[`OFF]
(0)
174 R/W
[Ot`2]
is set to
[hEAt]
or
[CooL]
.
[Ot`3]
[Ot 3]
Output 3 Function
Set Output 3 function.
[`OFF]
Off (0)
[Pr;AL]
Process Alarm (1)
[dE;AL]
Deviation Alarm (2)
[hEAt]
Heat Control (3)
[CooL]
Cool Control (4)
[E;out]
Event (5)***
[rmt]
Retransmit (6)
[`OFF]
(0)
178 R/W
Output 3 is installed.
Active only if Output 3
is a process output
(SD_
_ - _ _ _F - _ _ _ _)
[Ot`2]
[Ot 2]
Output 2 Function
Set Output 2 function.
[`OFF]
Off (0)
[Pr;AL]
Process Alarm (1)
[dE;AL]
Deviation Alarm (2)
[hEAt]
Heat Control (3)
[CooL]
Cool Control (4)
[E;out]
Event (5)***
[`OFF]
(0)
167 R/W
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 (0)
Urtb]
Variable Time Base
(1)
[`Ftb]
(0)
168 R/W
[Ot`2
is set to
[hEAt]
or
[CooL]
and output type is
SD_ _-_ _ C _-_ _ _ _ or
SD_ _-_ _ K _ -_ _ _ _.
[r1;;CO]
[r1.CO]
Output 1 Retransmit Offset
Set the high scale for the process output.
-999.0 to 999.0
(-999000 to 999000)
0
*310, 311
R/W
Output 1 is a process
output (SD_ _ - _ _ _ F -
_ _ _ _ ) and
[Ot`1]
is
set to
[rmt]
.