Watlow Series SD PID Profiling Controller - Manual (Page 35)

Wa t l o w S e r i e s S D • 3 3 • C h a p t e r 5 S e t u p
Display Parameter Name
Description
Settings Range
(Integer values for Modbus in
parenthesis.)
Default Modbus*
(less 40,001
offset)
Read/Write
Appears if:
[hyS3]
[hyS3] Alarm 3 Hysteresis
Set the hysteresis for an alarm.
This determines 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].
[Lgc3]
[Lgc3] Alarm 3 Logic
Select the alarm output condi-
tion 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].
[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].
[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].
[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 control 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) (cur-
rent 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 input 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 - _ _ _ _ - _
_ _ _ )
Note: Some values will be rounded off to fit in the four-character display. Full values can be read with Modbus. All temperature pa-
rameters through Modbus are in °F, by default. Writing to register 18 will toggle between °F and °C.
* 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-_ _ _ _- _ _ _ _ ).
*** Profiling version only (SD_R-_ _ _ _- _ _ _ _ ).