P
AGE
63
Er 56
- Process Overshot
1. The process value exceeded the setpoint value too
the Setpoint
quickly for the Auto Tune calculations to complete.
a) Lower the process value further before
re-attempting Auto Tune (page 36).
b) If not used, select out2 =3 or 5 then
re-attempt Auto Tune (page 36).
c) Reduce the o1uL percentage of output
value in steps of 10% and re-attempt Auto
Tune until Er56 doesn't appear (page 36).
Er 57
- Failed Noise Test
1. The process response samples are checked to
detect erroneous values that might be caused
by noise on the sensor input. If noise is detected
the Auto Tune will abort. Inspect the instrument
and the sensor for proper installation. Re-attempt
the Auto Tune (page 36).
Er 58
- Cancelled by Operator
1. If the AUTO TUNE key is pressed while the Auto
Tune feature is active the Auto Tune will abort.
Re-attempt the Auto Tune (page 36).
Er 59
- Error Occurs During
1. If a non-Auto Tune Error condition occurs while the
Auto Tune
Auto Tune is active, the Auto Tune will abort.
Clear the error condition and re-try the Auto Tune
(page 36).
Er 60
- Power Interrupt
1. If the instrument power goes off while the Auto During
Auto Tune
Tune is active it will cause the Auto Tune to abort.
Re-attempt the Auto Tune (page 36).
Momentary Er 70
-
1. Tried to communicate while unit was in a non-
Controller unable to respond
control mode.
within 250 milliseconds
Momentary Er 71
-
1. The unit received a request before proper amount
Byte received before the
of time has elapsed since last request.
response was transmitted
Momentary Er 72
-
1. Data received not valid, possible corruption on
Incorrect Block Check
the commlink. Possible noise.
character was received
Momentary Er 73
-
1. Improper parity selection on the transmitting
Byte received with incorrect
terminal.
parity
2. Incorrect baud rate.
3. Noise.
