Yamaha RCX240, User Manual

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A-70
TROUBLESHOOTING
A
TROUBLESHOOTING
A-71
[22] Major hardware errors
22.3 : DC24V power low
Code : &H1603
Dedicated output : *1
Meaning/Cause Action
a. DC 24V power supply malfunctioned
and the voltage dropped.
b. Electromagnetic brake for vertical axis
is defective.
c. Wiring for electromagnetic brake of
vertical axis is wrong.
d. Short in DC 24V for safety connector. 1. Replace the controller.
2. Replace the vertical axis
electromagnetic brake.
3. Replace the ROB I/O cable.
4. Check the SAFETY connector
wiring.
22.9 : Abnormal over voltage
Code : &H1609
Meaning/Cause Action
a. Output voltage for motor power supply
exceeded 420 volts.
b. Regenerative unit not connected to
controller.
c. Regenerative unit safety device
triggered due to temperature rise
(120°C or more) in regeneration
damping resistor.
d. Cable connecting regenerative unit and
controller is defective.
e. Regenerative unit is defective.
f. Safety connector is used incorrectly. 1. Check the power supply voltage.
2. Connect the regenerative unit.
3. Lower the robot operating duty.
4. Replace the RGEN cable.
5. Replace the regenerative unit.
6. Do not supply DC 24V to SAFETY
connector from external source.
22.10 : Abnormal drop in voltage
Code : &H160A
Meaning/Cause Action
a. Output voltage for motor power supply
dropped below 140V.
b. Power supply has insufficient capacity.
c. Vertical axis electromagnetic brake is
defective.
d. SAFETY connector is used incorrectly. 1. Check the power supply voltage.
2. Check if supply voltage drops during
robot operation.
3. Lower the robot duty cycle.
4. Replace the vertical axis
electromagnetic brake.
5. Do not supply DC 24V to SAFETY
connector from external source.
6. Do not use DC 24V from SAFETY
connector as power source for
driving external loads.