Input Calibration
5.5 Input 1 Calibration Procedure
Preliminary Steps
•Apply power and allow the controller to warm up for 30 minutes before you calibrate.
•Please read Subsection 5.4 – Input 1 Set Up Wiring before beginning the procedure.
•Make sure you have LOCK set to NONE. See Subsection 3.4 - Tuning Set Up Group.
•See Table
CAUTION
For linear inputs, avoid step changes in inputs. Vary smoothly from initial value to final 100 % value.
Procedure
The calibration procedure for Input #1 is listed in Table
Table 5-10 Input 1 Calibration Procedure (Numeric Code 10000)
Step
Operation
Press
Result
1 | Enter Calibration | Setup | Upper Display = CAL ( - - - - ) |
| Mode |
| Lower Display = INPUT1 (10000) |
|
|
|
|
until you see
Function
You will see:
Upper Display = DIS ( 0 )
Lower Display = CALIN1 (10001)
The calibration sequence is enabled and you will see:
Upper Display = BEGN ( 1 )
Lower Display = CALIN1 (10001)
2Calibrate 0 %
Function
At the completion of the sequence, the selection automatically reverts to disable.
You will see:
Upper Display = APLY ( 2 )
Lower Display = IN1ZRO (10002)
•Adjust your calibration device to an output signal equal to the 0 % range value for your particular input sensor. See Table
•Wait 15 seconds, then go to the next step.
144 | UDC2500 Universal Digital Controller Product Manual | 4/07 |