Omron CJ Series Operation Manual page 97

Error and Alarm Processing
Starting CIO Area Word
ERC Indicator Lit and RUN Indicator Not Lit
Error
Hardware Check An error occurred in the
Error Unit's peripheral hardware.
Temperature Control An error occurred in the
Stopped Error cold-junction compensator.
DM Setting Error There is an error in the Ini-
(Initialization Data) tialization Data settings.
74
The starting CIO Area word (n) for a Special I/O Unit is:
n = 2000 + (10 × unit number)
■ Setting Error Numbers
Setting error
number
0 No incorrect settings
1 Alarm mode 1
2 Alarm mode 2
3 Alarm 1 hysteresis
4 Alarm 2 hysteresis
5 Set point
6 Alarm 1 SV
7 Alarm 2 SV
8 Input compensation value
9 Control period
A Control sensitivity
B Proportional band
C Integral time
D Derivative time
E Heater burnout current
F Not allocated.
When there are errors in two or more settings, the setting error number with
the highest priority will be stored.
RUN
ERC
ERH
These alarms indicate that there is an error in the Unit's Initialization Data.
When one of these alarms occurs, correct the cause of the alarm and then
clear the alarm by turning the power ON again or turning ON and OFF the Tem-
perature Control Unit's Restart Bit.
Cause Control status
Control operation
will stop.
Control operation
will stop.
Control operation
will stop.
Setting name
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Lit
Not lit
Processing
Turn the power ON again or restart the Unit.
If the error is in EEPROM, turn ON pin 7 of the
Unit's DIP Switch to initialize the settings.
If these steps do not clear the error, repair or
replace the Unit.
Check the connections at the cold-junction com-
pensator on the terminal block and turn the
power ON again or restart the Unit.
Check the location of the error in word n+7 or
n+17, correct the initialization data (alarm mode
or alarm hysteresis), and then turn the power ON
again or restart the Unit.
Section 5-1
Priority