8.3 Position Proportional and Three Position Step Output Calibration

Position proportional control

Three position step control

Equipment needed

Connections

Auto mode vs manual mode

When the UDC 3300 controller has a Position Proportional control output, calibrate the controller so that the increase and decrease relays operate properly with respect to the position of the external feedback slidewire.

Three Position Step Control Output Models with Motor Position Indication

(Model Numbers DC330X-EE-XXX-X2, DC330X-AA-XXX-02)

This model must have its output calibrated per the entire procedure to ensure the displayed output (slidewire position) agrees with the final control element position.

Three Position Step Control Output Models without Motor Position Indication

(Model Numbers 330X-EE-XXX-X0, DC330X-AA-XXX-X0)

This model only requires that the “Motor Time” be entered as shown in the calibration procedure. FULL CALIBRATION IS NOT REQUIRED.

None

Apply power and allow the controller to warm up 30 minutes before you calibrate. Leave all field wiring connected to the rear terminals.

There are two ways in which to calibrate Position Proportional or 3 Position Step control:

AUTO mode or MANUAL mode.

Rules for auto mode vs manual mode

Displayed values

The Auto-mode selection must be done at least once before the manual mode will operate properly. Failure to use the Auto-mode procedure will prevent the controller from going into automatic control mode.

During the Auto-mode calibration procedure, the values being displayed are used only to indicate if the motor is still traveling. To view the actual calibration value, use the manual mode after the Auto-mode is completed. These values can be changed for purposes of tweaking the calibration.

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Honeywell UDC 3300 Rules for auto mode vs manual mode Displayed values