Set up parameters, Setup parameters – Watlow Electric Micro-Based Autotuning Control SERIES 980/985 User Manual

Page 25

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Setup Parameters

At the top of the menu, the Series 980/985 displays the user level of operation

in the Upper display, and the LOC parameter in the Lower display. When

pressing the MODE key, the value of the next parameter appears in the Upper
display, and the parameter itself is in the Lower display.

Lock: Selects the level of operator lock-out. This parameter’s range is from

0 - 3. The default is 0. The levels of operator lock-out are defined as follows:

LOC 0:

LOC 1:

LOC 2:

All operating parameters may be viewed or changed. Manual operation

is permitted.

The set point and actual are the only visible parameters, the set point

is adjustable in this level of lock-out. Manual operation is permitted.

The set point and actual are the only visible parameters, set point is

adjustable in this level of lock-out. Manual operation is not permitted.

Bumpless transfer is defeated.

LOC 3: The set point and actual are the only visible parameters, the set point is

not adjustable in this level of lock-out. Manual operation is not
permitted. Bumpless transfer is defeated.

Input: Selects the sensor input type. This parameter’s range is J, K, t, n, Pt2,
rtd, rt.d, 0-5, and 420. The default is Type “J”. Only those input types compat-
ible with your unit appear. See the model number information for your type.

Remote Set Point: Enables the Series 980/985 to accept a remote set point

signal from another device. This parameter only appears on models 98XA-
2XXX-0000 or 98XA-3XXX-0000 and if In = Thermocouple or RTD input.

Range: OFF, 05,420 Default: OFF

Decimal: Selects the location of the decimal point for ail process related data.

The range is 0, 0.0, or 0.00. The default is 0. This parameter only appears if
the in parameter is 0-5 or 420.

Celsius _ Fahrenheit: Selects the units of measure for the control. The range

of this parameter is C or F. The default is F. This parameter only appears if the

In parameter is J, K, t, n, Pt2, rtd, or rt.d.

Range Low: Selects the low limit of the operating range. See the model
number and specification information in the Appendix for your range values. For

units with process input, it determines scaling of the remote set point input.

0.0VDC and 4mA input are equal to Range Low (rL) of your input type. Set point

is linearly scaled between rL and rH. See Chart 2 on Page 26.

Range High: Selects the high limit of the operating range. See the model

number and specification information in the Appendix for your range values. For

units with process input, it determines scaling of the remote set point input. The

5.OVDC and 2OmA input are equal to the Range High (rH) of your input type.
Set point is linearly scaled between rL and rH. See Chart 2 on Page 26.

Output 1: Selects the output action for the primary output. The range of this
parameter is Ht (Heating) or CL (Cooling). Default is Ht.

Output 2: Selects the output action for the secondary output. The range of this
parameter is Ht (Heating), CL (Cooling), AL (Alarm) or no (None). Default is AL.

Alarm Type: Selects the alarm type when Output 2 has been selected as an

alarm. The range of this parameter is Pr (Process Alarm) or dE (Deviation

Alarm). A process alarm is set at an absolute temperature to prevent over/
underrange. Deviation tracks your process set point. The default is Pr. This

only appears if the Ot2 parameter is AL.

Setup Chapter 4 WATLOW Series 980/985 User’s Manual 25

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