Watlow Series D8 - Manual (Page 169)

Series D8 User’s Guide Chapter 6: Menu and Parameter Reference
Doc. 0600-3120-2000 Watlow Anafaze 151
Decimal Placement for DeviceNet:
See Decimal Placement
for Numeric Values on page 59.
DeviceNet Object:
Ratio (69 hex)
Ratio High Set Point
Enter the highest allowable set point for the current loop. The
set point will never exceed this value, regardless of the result
of the ratio calculation.
Values:
For a thermocouple or RTD input, any value in the in-
put sensor range; see Table 6.7 on page 131. For a process in-
put, any value from Input range low to Input range high. This
value must be greater than the Ratio low SP parameter.
Default:
25
Decimal Placement for DeviceNet:
See Decimal Placement
for Numeric Values on page 59.
DeviceNet Object:
Ratio (69 hex)
Control Ratio
Enter the factor by which to multiply the process variable of
the master loop to calculate the set point of the ratio loop.
Values:
.1 to 999.9 (1 to 9999). Values in parentheses are for
communications (values are in tenths).
Default:
1.0 (10) for a thermocouple, RTD or process input.
DeviceNet Object:
Ratio (69 hex)
Ratio Set Point Differential
Enter the value to add to the ratio calculation before using it
as the set point.
Values:
-9999 to 9999. Decimal placement depends upon the
Input type
and Disp format values in the Input menu.
Default:
0
Decimal Placement for DeviceNet:
See Decimal Placement
for Numeric Values on page 59.
DeviceNet Object
: Ratio (69 hex)
I/O Tests Menu
Use the I/O tests menu to test the following:
•
Digital inputs
• Digital outputs
• Keypad
l01 Ratio high r
SP b 25 ˚C
l01 Control r
ratio b 1.0
l01 Ratio SP r
diff b 0 ˚C
lI/O tests r
Other menus b