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22.3 : DC24V power low
Code
Meaning/Cause : a. DC 24V power supply malfunctioned and the voltage
Action
Dedicated output : *1
22.7 : Main power low
Code
Meaning/Cause : Main power voltage dropped when the servo was turned on or
Action
22.9 : Abnormal over voltage
Code
Meaning/Cause : a. Output voltage for motor power supply exceeded 420 volts.
Action
: &H1603
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.
: &H1607
during servo-on.
: Check whether main power is input.
: &H1609
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] Major hardware errors
Chapter
9
9-49
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