Alarm polarity – Super Systems 9205 Series User Manual

Page 53

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Series 9205 Operations Manual Rev A

52

Loop 2 dec

Loop 3 combo

PV 3 retrans

Loop 3 inc

Loop 3 dec

Loop 3 combo

Input 1 retrans

Input 2 retrans

Input 3 retrans

Programmer Valve 1 SP

Programmer Valve 2 SP

Programmer Valve 3 SP

Programmer Valve 4 SP

Prog 1 Quench speed (0-1000=0-100%)

Programmer DAC 1

Programmer DAC 2

Programmer DAC 3

Programmer DAC 4

Programmer 2 DAC 4

Programmer 2 DAC 5

Programmer 2 DAC 6

Programmer 2 ID number

Programmer 2 Valve 1 SP

Programmer 2 Valve 2 SP

Programmer 2 Valve 3 SP

Programmer 2 Valve 4 SP

Disabled

Offset

This is the starting point, the Process Variable value at which you get 4 milliamps if the output is set up as

4-20mA (or 0 milliamps if output is set up as 0-20mA). Clicking on this value will display an input box from

which the user can select a new value. The range is –32768 to 32767.

Range

This is a Process Variable value between 4 and 20 milliamps (or 0 and 20 milliamps, depending on setup).

Clicking on this value will display an input box from which the user can select a new value. The range is

–32768 to 32767.

Note - The range, although not displayed with a decimal point, contains a decimal point that is dependent

on the process variable selected. For example, if the offset is 20 mV for 4 mA, and you want 100 mV to be 20

mA, then your range should be 80. If the process variable is temperature, then the range will be 80, since

temperature PVs do not have a decimal. If the PV is % Carbon, then the range will need to include the two

decimal points for % Carbon. So, a range of 80 will be entered as 8000.

See below for more examples

.

Current Selection

Provides the option of 4-20 mA or 0-20 mA control. Clicking on this value will display an input box with a

drop-down list from which the user can select either of the two values listed above.

Offset and Range when assigned to a control loop

Inc : 0 = 4mA, 100 = 20mA

Dec : 0 = 4mA, -100 = 20mA

Example: if 4 – 20 mA = 800 mV - 1200 mV

Offset = 800 (starting point)

Range = 400

The Return button will return the user to the menu screen.

Alarm Polarity

This option will allow the user to set up the polarity of the

alarms, or determine whether the Normally Closed option

or the Normally Open option makes the alarm active.

The alarms to configure are: Programmer Alarm, Alarm

1, Alarm 2, and Alarm 3. The options for each alarm are:

Normally Open or Normally Closed.

The Return button will return the user to the menu

screen.

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