Calibration Procedure (Continued) - Promation Engineering P1.A Series Installation & Operation Manual

Calibration Procedure (continued)

Running CCW (Green LED) just
switches from OFF to ON steady.
1. Turn VR1 CCW 3 to 6 turns to make the LED
change state.
2. When the state change point is found, set VR1 for
the point where the LED will stay on steady.
3. Note: It is possible to adjust too far and be in the
dead band of VR1.
These adjustments are interactive and
changes to one can affect the other. Run the
calibration again to confi rm all settings are
YES
Find the point where the
Initial Calibration
Pass
YES
accurate.
Page 13 of 13 P1.A-24V-ACDC Standard Proportional Series
Generate a known
accurate 20 mA signal.
Actuator drives CCW.
Is Feedback equal to
the 20mA Signal?
VR51
Note: The CCW
EOT point must be
within ±3° from 90°.
VR1
Is this the fi rst run of
the calibration tests?
NO
Adjust VR51 to make
Feedback 20mA
NO
AutoCalibration Complete
Proceed to Commissioning