3. TROUBLESHOOTING AND
TROUBLESHOOTING AND RECOVERY
Type LED Action
(1) The average regenerative discharge energy is probably too high. Reduce the
frequency of acceleration/deceleration.
(2) The connection of the thermostat line to the separate regenerative discharge
unit is probably incorrect. Check the connection.
(3) The thermostat of the separate regenerative discharge unit is probably defec
tive.Disconnect the wiring of the regenerative discharge unit, and check the
thermostat. If the thermostat is open when the regenerative discharge unit is
not hot, replace the regenerative discharge unit.
(4) The transformer has probably overheated. Check the ambient temperature,
motor output, and transform rating.
If any of the above four items does not fit the case,replace the servo amplifier.
Dynamic brake circuit
failure alarm (DBRLY)
The connection between the NC and servo amplifier is probably incorrect. Check
If the above items does not fit the case,replace the servo amplifier.