Appendix - Brainchild P41 User Manual

Appendix A-1 Appendix A-1
Table A.1 Error Codes and Corrective Actions Table A.1 Error Codes and Corrective Actions
Display
Error
Symbol
Code
Illegal setup values been used:
Before COOL is used for OUT2,
DIRT ( cooling action ) has already
been used for OUT1, or PID mode
is not used for OUT1 ( that is PB
4
= 0, and / or TI = 0 )
Communication error: bad function
code
10
Communication error: register
11
address out of range
Communication error: attempt
to write a read-only data or a
14
protected data
Communication error: write a
value which is out of range to a
15
register
25 Holdback time out
Fail to perform auto-tuning
26
function
You have selected an input type
27
which was not calibrated
EEPROM can't be written correctly
29
Cold junction compensation for
30
thermocouple malfunction
Input sensor break, or input
current below 1 mA if 4-20 mA is
39
selected, or input voltage below
0.25V if 1 - 5V is selected
A to D converter or related
40
component(s) malfunction
Error Description
UM0P411D
Corrective Action
Check and correct setup values of Check and correct setup values of
OUT2, PB, TI and OUT1. IF OUT2 OUT2, PB, TI and OUT1. IF OUT2
is required for cooling control, the is required for cooling control, the
control should use PID mode ( PB control should use PID mode ( PB
= 0, TI = 0 ) and OUT1 should = 0, TI = 0 ) and OUT1 should
use reverse mode (heating action) use reverse mode (heating action)
, otherwise, don't use OUT2 for , otherwise, don't use OUT2 for
cooling control. cooling control.
Correct the communication
software to meet the protocol
requirements.
Don't issue an over-range
register address to the slave.
Don't write a read-only data or a
protected data to the slave.
Don't write an over-range data
to the slave register.
Evaluate validity of the PID values
1.The PID values obtained after 1.The PID values obtained after
auto-tuning procedure are out auto-tuning procedure are out
of range. Retry auto-tuning. of range. Retry auto-tuning.
2.Don't change set point value 2.Don't change set point value
during auto-tuning procedure. during auto-tuning procedure.
3.Use manual tuning instead of 3.Use manual tuning instead of
auto-tuning. auto-tuning.
4. Don't set a zero value for PB. 4. Don't set a zero value for PB.
5. Don't set a zero value for TI. 5. Don't set a zero value for TI.
6. Touch RESET key 6. Touch RESET key
Calibrate the new input type or
change input type to the
calibrated one.
Return to factory for repair. Return to factory for repair.
Return to factory for repair. Return to factory for repair.
Replace input sensor.
Return to factory for repair.
97