Error Messages; Recommendations - CAL Controls 3300 Operating Manual

ERROR MESSAGES

SENSOR FAULT
Display flashing:
Indicates: thermocouple burnout RTD/Pt100 open or
short circuit or negative over-range.
Action: Check sensor/wiring
NON-VOLATILE MEMORY ERROR
Display flashing:
Action: De-power briefly. Replace unit if problem
persists
MANUAL POWER ERROR
Display flashing:
SP1 set to ON/OFF in CYC.t
Action: Select proportional mode
IMMEDIATE FAIL ON AUTOTUNE START
Display flashing: (setpoint),
1. No setpoint entered
Action: Enter setpoint
2. SP1 set to ON/OFF in
Action: Select proportional mode
Note: To reset and clear error press
cancel message.
FAIL LATER DURING AUTOTUNE CYCLE
14
The thermal characteristics of the load exceed the Autotune
algorithm limits. The failure point indicated by any display
and FaiL
INPT
and FaiL
DATA
and FaiL
DATA
and FaiL
TUNE
CYC.T
together briefly to
0.0 in eg. Ctb = 0.0 see diagram below.
TECH
Action: 1. Change the conditions. eg. raise setpoint
2. Try
TUNE
3. Check SP1.P percentage power
(see IMPROVING CONTROL ACCURACY)
4. If the error message persists, call CAL for advice.
READING AUTOTUNE TUNING CYCLE
RESULTS IN
TECH
1. Index to , release
TECH
alternately display
TECH
2. Press and hold , the display will alternate Ct.A and value
(eg. 10.4)
3. Keep pressed and press
value (eg. 19.6)
4. Repeat step 3 above to view:
Ct 1, Ct 2, Ct 3, Ct 4, oS 1, uS and oS 2.
Autotune tuning data and limits
Temp
DAC
Setpoint
oS 1
Tuning
TUNE
Cycle
75% SP
Start
TUNE
At.SP
or , display will
and Ct.A
once, the display Ct.B and
PID
oS 2
New PID
values
entered
uS
Time
(100% output)