Watlow Electric 93 - Manual (Page 22)

4 . 4 ■ S e t u p W a t l o w S e r i e s 9 3
Setup
Range High: Selects the high limit of the operating range. Also used to scale the
high end of the process input. 5.0VÎ (dc) and 20mA represent Range High [``rh] for
a process input. The process input is linearly scaled between [``rL] and [``rH]. See
the model number and specification information in the Appendix for your range val-
ues, or refer to the following table.
Range: Sensor range high to [``rL]
Default: High limit of sensor type for a thermocouple or RTD. 9999 for process input.
Output 1: Selects the action for the primary output in response to the difference
between set point and process variable. Select [``ht] (heat) for reverse acting or
select [``CL] (cool) for direct acting.
Range: [``ht], [``CL]
Default: [``ht]
Hysteresis-Control: Selects the switching hysteresis for Output 1 and 2 when you
select 0 (on-off) under the [`Pb1] parameter and [`Ot2] is set to [`Con].
Range: 1 to 55, 0.1 to 5.5, 0.01 to 0.55°C/1 to 99, 0.1 to 9.9, 0.01 to 0.99°F
Default: 2, 0.2, 0.02°C/3, 0.3, 0.03°F
Output 2: Selects the output action for the secondary output.
Range:
[`Con] Control mode opposite Output 1 (heat or cool)
[`PrA] Process alarm with alarm message displayed
[``Pr] Process alarm with no alarm message displayed
[`dEA] Deviation alarm with alarm message displayed
[``dE] Deviation alarm with no alarm message displayed
[``no] None
Default: [`Con]
Hysteresis - Alarm: Selects the switching hysteresis for Output 2 when [`Ot2] is
an alarm. Appears only if [`Ot2] is not set to [`Con] or [``no]. See the Operation
Menu for [`Pb1].
Range: 1 to 5555, 0.1 to 555.5, 0.01 to 55.5°C/1 to 9999, 0.1 to 999.9, 0.01 to 99.99°F
Default: 2, 0.2, 0.02°C/3, 0.3, 0.03°F
Latching: Selects whether the alarm is latching or non-latching. Latching alarms
must be cleared by pressing the ˆInfinity key before the alarm output will reset.
Selecting non-latching will automatically reset the alarm output when the condition
clears. Appears only if [`Ot2] is not set to [`Con] or [``no].
Range: [`LAt] or [`nLA]
Default: [`nLA]
Silencing: Selects alarm silencing (inhibit) for the alarm. Appears only when [`Ot2]
is set to [`dEA] or [``dE]. For more information see Chapter 5.
Range: [``On] or [`OFF]
Default: [`OFF]
RTD: Selects the RTD calibration curve for RTD inputs. Will not appear unless
[``In] is set to [`rtd] or [`r†d]. [`JIS] is 0.003916
Ω
/
Ω
°C, [`Din] is
0.003850
Ω
/
Ω
°C.
Range: [`din] or [`JIS] Default: [`din]
Ramping: Choose [`Str], and the set point ramps at the selected rate in °/hr. from
the process (actual) temperature to the set point, when power is applied to the con-
troller (start up). It will not ramp with a set point change. [`On] is the same as
[`Str], but ramps with a set point change. It ramps from the previous set point to a
new one at the selected ramp rate. Select [`OFF] for no ramping action. When ramp-
ing, the lower display alternately flashes [``rP]. The set point displayed is the
desired end set point. The ramping set point is not shown. Entering the Setup Menu
or manual operation disables the outputs and ramp. Once you exit either one, the
Series 93 controls to the last entered set point.
Range: [`Str], [``On], [`OFF]
Default: [`OFF]
Rate: Selects the ramping rate in degrees per hour. Will not appear if [``rP] is set
to [`OFF].
Range: 0 to 9999
Default: 100°/hr.
{`HSC}
{`Ot1}
{`Ot2}
{`HSA}
{``rh}
{`LAt}
{`SIL}
{`rtd}
{``rt}
{`rP`}