Mitsubishi C70 User Manual

III - 4
2. Daily Inspection
2. Daily Inspection
The items that must be inspected daily are shown below.
(Note) Refer to "3. Display on 7-segment LED" for CNC CPU module's LED display.
Item Inspection Item Inspection Criterion Action
1 Mounting of base unit
Check that the fixing
screws are not loose and
the cover is not
dislocated.
The screws and cover must be mounted
securely.
Retighten the screws.
2 Installation of I/O modules
Check that the module is
not dislocated and the
unit fixing hook is
engaged securely.
The module fixing hook must be engaged and
installed correctly.
Securely engaged the
module fixing hook.
3 Connecting conditions
Check for loose terminal
screws.
Screws should not be loose.
Retighten the terminal
screws.
Check for distance
between solderless
terminals.
The proper clearance should be provided
between solderless terminals.
Correct.
Check the connector part
of the cable.
Connections should not be loose.
Retighten the connector
fixing screws.
4
Module indication LED
Power
supply
module
[POWER] LED
Check that the LED is
ON.
The LED must be ON (green).
(Abnormal if the LED is OFF or ON (red)).
Refer to QCPU User's
Manual (Function
Explanation, Program
Fundamentals)
PLC CPU
module
[MODE] LED
Check that the LED is
ON.
The LED must be ON (green).
(Abnormal if the LED is OFF or flickering.)
[RUN] LED
Check that the LED is
ON in RUN status.
The LED must be ON.
(Abnormal if the LED is OFF.)
[ERR.] LED
Check that the LED is
OFF.
The LED must be OFF.
(Abnormal if the LED is ON or flickering.)
[BAT.] LED
Check that the LED is
OFF.
The LED must be OFF.
(Abnormal if the LED is ON.)
I/O module
Input LED
Check that the LED is
ON/OFF.
The LED must be ON when the input power is
turned ON.
The LED must be OFF when the input power is
turned OFF.
(Abnormal if the LED does not turn ON or turn
OFF as indicated above.)
Refer to I/O Module Type
Building Block User's
Manual
Output LED
Check that the LED is
ON/OFF.
The LED must be ON when the output power is
turned ON.
The LED must be OFF when the output power is
turned OFF.
(Abnormal if the LED does not turn ON or turn
OFF as indicated above.)

Mitsubishi C70 Specifications

General

Brand	Mitsubishi
Model	C70
Category	Control Unit
Language	English