
B–63323EN/03
6. CONNECTION OF I/O UNITS TO
MACHINE INTERFACE
169
D Use flat cables for connectors CM15, CM16, CM17, and CM26.
When splitting and connecting flat cables to the machine operator’s
panel or other equipment, be careful not to break or short the
conductors.
D All signals with the same name described in Subsec. 6.7.3 are
connected to one another.
D One of the holes for mounting the PCB is also used for grounding.
Before mounting the PCB, check the location of that hole with the
diagram in Subsec. 6.7.10.
L1 (green) :
Monitors +5E. When on, it indicates that the fuse is intact (+5E: 5V for
connector output).
When off, it indicates that the fuse has blown.
L2 (green) :
Monitors key scanning. When blinking, it indicates that the keys are
being scanned normally. When on or off, it indicates key scanning is at
halt.
L3 (red) :
When on, it indicates that an alarm condition has occurred. When off, it
indicates that there is no alarm condition.
6.7.6
Major Connection
Precautions
6.7.7
State of the LEDs on
the Machine Operator’s
Panel Interface Unit