Honeywell UDC 3300 manual PID Sets SW Value LSP’S, Only TWO Three

Lower Display

Prompt

PID SETS

(continued)

SW VALUE

LSP’S

Upper Display

Range of Setting

or Selection

2PV SW

2SP SW

GAIN S

Value in engineering units within PV or SP range limits

1ONLY

TWO

THREE

Parameter

Definition

TWO SETS PV AUTOMATIC SWITCHOVER— When the process variable is GREATER than the value set at prompt SW VALUE (Switchover Value), the controller will use Gain #3, Rate #3, Reset #3, and Cycle #3 Time. The active PID SET can be read in the lower display.

When the process variable is LESS than the value set at prompt SW VALUE, the controller will use Gain #4, Rate #4, Reset #4, and Cycle #4 Time. The active PID SET can be read in the lower display.

Other prompts affected: SW VALUE

TWO SETS SP AUTOMATIC SWITCHOVER— When the setpoint is GREATER than the value set at prompt SW VALUE (Switchover Value), the controller will use Gain #3, Rate #3, Reset #3, and Cycle #3.

When the setpoint is LESS than the value set at prompt SW VALUE, the controller will use Gain #4, Rate #4, Reset #4, and Cycle #4.

Other prompts affected: SW VALUE

GAIN SCHEDULING allows you to schedule eight user- defined Gain segments applied over a user-defined PV range. Enter Gain and PV values under Loop 2 Tuning Set Up prompts. PBorGAIN selection in Control Set Up group also applies.

ATTENTION Gain scheduling automatically disables Accutune for this loop.

AUTOMATIC SWITCHOVER VALUE— This is the value of Process Variable or Setpoint at which the controller will switch from Tuning Constant Set #4 to Set #3.

Only appears when PID SETS selections 2 PVSW or 2 SPSW are selected.

LOCAL SETPOINT SOURCE— This selection determines what your local setpoint source will be.

LOCAL SETPOINT— The setpoint entered from the keyboard.

TWO LOCAL SETPOINTS— This selection lets you switch between two local setpoints using the

SETPOINT SELECT key.

THREE LOCAL SETPOINTS— This selection lets you switch between three local setpoints using the

SETPOINT SELECT key. LSP 3 is mutually exclusive

with RSP or Internal Cascade.

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