User`s manual

Watlow Series SD ■ 33 ■ 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.
** Static set point version only (SD_C-_ _ _ _- _ _ _ _ ).
[dSP3]
[dSP3]
Alarm 3 Message
Displays an alarm message when an
alarm is active.
[`OFF] off (0) no message
[``On] on (1) message
[``On] (1)
140 R/W
[Ot`3] is set to [dE;AL]
or [Pr;AL] .
[ACLF]
[Unit]
AC Line Frequency
Set the frequency of the applied AC line
power source.
[``50] 50 (0)
[``60] 60 (1)
[``60] (1)
276 R/W
If [Ctr1] , [Ctr2] or
[Ctr3] is set to [ Urtb] .
[Unit]
[Unit]
Units of Measurement
Set the type of units used for the PID con-
trol parameters.
[``US] US (0)
[``SI] SI (1)
[``US] (0)
45 R/W
Always active.
[I;Err]
[I.Err]
Input Error Latching
Turn input error latching on or off.
[nLAt] off (0)
[`Lat] on (1)
[nLAt] (0)
90 R/W
Always active.
[FAIL]
[FAIL]
Input Error Failure Mode
Set the input error failure mode when an
error is detected and the control changes
to manual mode.
[`OFF] off (0)
(0% power)
[bPLS] bumpless (1)
(current power level)
[Man] manual (2)
(fixed power level)
[bPLS] (1)
252 R/W
Always active.
[MAn]
[MAn]
Input Error Power
Set the manual power level when an in-
put error causes a change to manual
mode.
-100.0 to 100.0%
(-10000 to 10000)
0.0%
253 R/W
[FAIL} is set to [Man] .
[`dSP]
[ dSP]
Active Displays
Select which displays are active.
[`nor] both displays on (0)
[`Set] lower display only (1)
[`Pro] upper display only (2)
[`nor] (0)
44 R/W
Always active.
[``rP]
[ rP]
Ramping Mode**
Select when the control set point ramps to
the defined end set point.
[`OFF] off (0)
[`Str] ramps on start-up
only (1)
[``On] ramps at start-up or
any set point change (2)
[`OFF] (0)
266 R/W
Static set point version
only.
(SD _C - _ _ _ _ - _ _ _ _ )
[SiL3]
[SiL3]
Alarm 3 Silencing
Turn alarm silencing on or off.
[`OFF] off (0) no silencing
[``On] on (1) silencing
[`OFF] (0)
139 R/W
[Ot`3] is set to [dE;AL]
or [Pr;AL] .
[LAt3]
[LAt3]
Alarm 3 Latching
Turn alarm latching on or off.
[nLAt] off (0)
[`LAt] on (1)
[nLAt] (0)
138 R/W
[Ot`3] is set to [dE;AL]
or [Pr;AL] . v
[Lgc3]
[Lgc3]
Alarm 3 Logic
Select the alarm output condition in the
alarm state.
[AL`C] closed on alarm (0)
[AL`O] open on alarm (1)
[AL`C] (0)
199 R/W
[Ot`3] is set to [dE;AL]
or [Pr;AL] .
[hyS3]
[hyS3]
Alarm 3 Hysteresis
Set the hysteresis for an alarm. This de-
termines how far into the safe region the
input needs to move before the alarm can
be cleared.
0.0 to 999.0
(0000 to 999000)
1.000
*136, 137
R/W
[Ot`3] is set to [dE;AL]
or [Pr;AL] .