Red-lion TSC User Manual download pdf (Page 35)

Auto-Tune Damping Code (tcod)

Prior to invoking Auto-Tune, the damping code should be set to achieve the

desired damping level under PID control. When set to 0, this yields the fastest

process response with some overshoot. A setting of 4 yields the slowest

response with the least amount of overshoot. Damping codes of 0 or 1 are

recommended for most thermal processes.

Linear DC Analog Output (ANAS, ANLO, & ANHI) (Optional)

The Linear DC output can be programmed to transmit one of four controller

parameters:

ASSIGN DC OUTPUT (ANAS):

INP - Scaled input process value

OP - Percent output power

dEV - Process setpoint deviation

SP - Process setpoint value

With high and low digital scaling points, the range of the Linear DC output

can be set independent of the controller’s range.

ANLO (4 mA or 0 VDC) - -999 to 9999

ANHI (20 mA or 10 VDC) - -999 to 9999

This allows interfacing directly with chart recorders, remote indicators,

slave controllers, or linear power control units. The output is isolated from

input common and located on rear terminals #11 (OUT+) & #12 (OUT-).

When using the linear DC analog output for main control by assigning the DC

output for percent output power, the front panel indicator OP1 can be disabled

by setting the time proportioning cycle time equal to zero. This also disables

the main control output, OP1.

If transmitting the setpoint value, (for cascaded control with additional

controllers), the controller transmits the instantaneous ramping setpoint, not

the target value, when running a profile.

This also applies if the analog output is configured for process setpoint

deviation (dEV).

EX1.) Chart Record Process Display Value (0 to 10 VDC):

The process range is 300-700. Programming 300 for ANLO (0

VDC value) and 700 for ANHI (10 VDC value) yields full scale

deflection for a chart recorder (0 to 10 VDC). The 0 to 10 VDC

output is assigned to transmit the input process (ANAS = INP).

EX2.) Linear Control Output (4 to 20 mA):

A linear DC input power control unit is used for process control.

Programming 0.0% for ANLO (4 mA value) and +100.0% for

ANHI (20 mA value) configures the output. The 4-20 mA output is

assigned to transmit percent output power (ANAS = OP).

-33-

Note: Actual responses may vary depending on the

process, step changes, etc.

DAMPING CODE FIGURE

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 91 92

Comments to this Manuals

No comments

Red-lion TSC User Manual Page 35

Comments to this Manuals

Related products and manuals for Hardware Red-lion TSC