Omega Speaker Systems wi Series manual Setpoints & On/Off Control

4.3.7.2 Setpoints & On/Off Control

Auto Setpoint Deviation: If “enabled”, allows changes to Setpoint 1 to be made automatically to Setpoint 2. This mode is very helpful if the Temperature changes often.

In Setpoint Deviation Mode, set SP2 a certain number of degrees or counts away from SP1--this relation remains fixed when SP1 is changed.

For instance: Setting SP1=200 and SP2=20 and enabling SP Deviation means that the absolute value of SP2=220.

Moving SP1 to 300, the absolute value of SP2 becomes 320. Setpoint 1: This setpoint controls Alarm 1

Setpoint 2: This setpoint controls Alarm 2

Permanent Store: Check to save Setpoints in the Meter’s permanent storage.

On/Off 1 and On/Off 2: To enable and disable On/Off Control. Enabling On/Off Controls will disable the Alarms, and vice versa.

DeadBand: The Dead Band or neutral zone, is the number of degrees counts around Setpoint 1(or Setpoint 2 if On/Off 2) which the temperature value must pass above or below the Setpoint before the output changes state.

Action: The error that results from the measurement of the Process Variable may be positive or negative since it may be greater or smaller than the Setpoint. If a positive error should cause the Meter output to increase (i.e. cooling), it would be called Direct Acting. If a negative error should cause the output to increase (i.e. heating), it would be called Reverse Acting.

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