Omron Sysmac CJ Series, Operation Manual

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Error and Alarm Processing Section 5-1
Starting CIO Area Word The starting CIO Area word (n) for a Special I/O Unit is:
n = 2000 + (10
×
unit number)
■
Setting Error Numbers
When there are errors in two or more settings, the setting error number with
the highest priority will be stored.
ERC Indicator Lit and RUN Indicator Not Lit
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.
Setting error
number
Setting name Priority
0 No incorrect settings -
1 Alarm mode 1 1
2 Alarm mode 2 2
3 Alarm 1 hysteresis 3
4 Alarm 2 hysteresis 4
5 Set point 5
6 Alarm 1 SV 6
7 Alarm 2 SV 7
8 Input compensation value 8
9 Control period 9
A Control sensitivity 10
B Proportional band 11
C Integral time 12
D Derivative time 13
E Heater burnout current 14
F Not allocated. 15
Lit
RUN
ERC
ERH
Not lit
Error Cause Control status Processing
Hardware Check
Error An error occurred in the
Unit’s peripheral hardware. Control operation
will stop. 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.
Temperature Control
Stopped Error An error occurred in the
cold-junction compensator. Control operation
will stop. Check the connections at the cold-junction com-
pensator on the terminal block and turn the
power ON again or restart the Unit.
DM Setting Error
(Initialization Data) There is an error in the Ini-
tialization Data settings. Control operation
will stop. 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.