Watlow Series 920 Microprocessor-Based Ramping Control - Manual (Page 47)

From RETURN, you can go back to the SYSTEM prompt by pressing the ENTER key, or
return to ACCESS (3) menu by pressing the MODE key.
In the SETUP menu, ACCESS (5) must be selected to enter the SPCLFUNC parameters.
When ACCESS (5) is selected under the SETUP mode of the Series 920, the Special
Function parameters appear. Here you can select the input type, degrees, output type,
auxiliary, and alarm types among others.
Selects the type of sensor used as an input to the Series 920. This parameter will not
appear if DIP switch #7 is ON. Changlng this parameter defaults parameters SP,
A1L,
A1H, and clears all programmed files.
Range: Dependent on model number. Default: Dependent on input type.
Accepts the sensor input and scales it to degrees Celsius, Fahrenheit, or Units of measure.
This parameter will not appear if DIP switch #7 is ON.
Range: C, F, or U Default: F
Select an output type. Action in response to the difference between set point and process
variable. This parameter will not appear if DIP switch #7 is ON.
Range:
Heat PID
HT Cool PID CL
HeatPlD/Cool PID HT/CL Cool PlD/Heat PID CL/HT
Default: HT
Represents a low limit to set point. The default values are also the low limits of your input
type. This parameter will not appear if DIP switch #7 is ON. Changing this parameter
clears all files.
Range: Input selection dependent.
Represents a high limit to set point. The default values are also the high limits of your
input type. This parameter will not appear if DIP switch #7 is ON. Changing this param-
eter clears all files.
Range: Input selection dependent.
Allows a selection of program steps to run a ramp rate in either degrees/minute or time
duration. This parameter will not appear if DIP switch #7 is ON.
Range: Time or Rate Default: Time
This parameter determines whether Auxiliary Output 1 will be an alarm or event output for
the Series 920. This parameter will not appear if DIP switch #7 is ON.
Range:
Alpha Display Auxiliary Outout 1’s Function
AUX1 AL Alarm Output defined for AUX 1
AUX1 EV Event Output defined for AUX 1
Default: AL
This parameter determines whether Auxiliary Output 2 will be an alarm or event output for
the Series 920. This parameter will not appear if DIP switch #7 is ON.
Range:
Alpha Display
. .
Auxiliarv Output 1's
AUX2 AL Alarm Output defined for AUX 2
AUX2 EV Event Output defined for AUX 2
Default: AL
How To Program the Series 920, Chapter 6 WATLOW Series 920 User’s 47