User`s manual

139
CHAPTER2 CC-Link Unit
2-15 Troubleshooting
Check the following items if any problems occur during operation. Also, refer to “Trouble-
shooting” in the controller instruction manual and always refer to the section on trouble-
shooting in the master station sequencer (PLC) instruction manual. If the following items
do not eliminate the problem, promptly contact your Yamaha dealer or Yamaha for assis-
tance.
Checkpoints
• Check if CC-Link cable is not
connected, is miswired, or wires are
broken.
•
Refer to “2-5-1 Validating the CC-Link
unit”, and check that the CC-Link unit
is properly validated.
• Refer to “2-5-2 Setting the station
No.” and check the station No.
• Refer to “2-5-3 Setting the
communication speed” and check the
communication speed.
• Connect the HPB and check for an
alarm.
• Check if the status LED is lit in red.
• Check the CC-Link cable wiring.
• Check the CC-Link cable installation.
• Replace the CC-Link unit.
• Check RX(n+3)B status, and check if
it was possibly set to OFF.
• Check RYnF status.
• Check if set to emergency stop at HPB
or external parallel I/O.
• Connect the HPB and check the alarm
that was issued.
• Status LED is lit up in red.
Remedy
• Correctly repair any miswirings or
unconnected wiring. Replace the
cable if broken.
• Validate the CC-Link unit, and turn
on the controller power again.
• Reset the station No. correctly, and
turn on the controller power again.
• Reset the communication speed
correctly, and turn on the controller
power again.
• Refer to the controller instruction
manual and troubleshoot according to
the particular alarm.
• Repair the wiring.
• Reinstall the CC-Link unit away from
the source of noise (motor/power
lines.)
• If this solves the problem, replace the
CC-Link unit.
• Refer to “2-6-1 Starting data
exchange with the controller”
correctly perform handshake for
communication start-up.
• To turn on the servo (servo-on) set
RYnF to ON.
• Cancel emergency stop on the HPB
or external parallel I/O in order to set
the servo to on (servo-on).
• Refer to the controller instruction
manual and troubleshoot per the
particular alarm.
No.
1
2
Causes
CC-Link cable
not correctly
connected.
CC-Link unit is
not validated so
cannot be
identified from
controller.
Wrong station
No. setting.
Wrong
communication
speed setting.
Alarm occurring
on controller.
CC-Link cable
length does not
meet
specifications for
the CC-Link, or a
terminating
resistor is not
connected.
CC-Link cable is
in proximity to a
noise source such
as motor/power
lines.
CC-Link unit is
defective.
Handshake was
not performed at
communication
startup.
Set to emergency
stop with RYnF
at OFF.
Set to emergency
stop from HPB
or external
parallel I/O.
Controller alarm
was issued.
1)
2)
3)
4)
5)
6)
7)
8)
1)
2)
3)
4)
Symptom
When using
the master
station
sequencer
line test
function,
unable to
verify from
the master
station
sequencer
(PLC), that
the robot
controller is
correctly
connected to
the CC-Link
system.
Servo won’t
turn on.
(continued to next pa
g
e)