Instruction manual

9-1
9. MAINTENANCE
9-1 System check
Check items
Following 12 items can be checked in this check mode.
Display in the check
mode
Check item
“Chc PrG”
Program version
“Chc Ad”
A/D converter
“Chc KEy”
Key switches
“Chc LEd”
Display
“Chc buZ”
Buzzer
“Chc EEP”
EEPROM
“Chc bAt”
Lithium battery
“Chc Si”
Standard serial output
“Chc in”
Control input
“Chc Out”
Control output
“Chc rS”
RS-232C/422/485
“Chc An”
Analog output
General procedures
1. Enter the check mode
 To enter the check item selecting mode, press [ZERO] while pressing [ENTER], then press
[ENTER] again. It shows;
Main display:
“Chc PrG”
Sub display:
“ ”
* Press [ESC] to return to the normal mode.
2. Select a check item from the above table
 Select an item with [F] (Forward) and [FUNC.] (Backward) and press [ENTER] to move to the
selected item.
3. Check the system
See the following {Each check item} and check the system.