Melec ADB-5F41EL Instruction Manual page 35

１０－３．Alarm LED (ALM）
(1) Overheat alarm
● In case of internal temperature of the driver reaches approx. 70℃ or more,
O.H.A LED comes on. At this time the motor output current is not blocked.
● When this LED comes on, stop operation and check if there is any
abnormality occurring with the motor and the driver.
● Provide mechanical cooling, for example, if this LED comes on while
no abnormality is detected.
● Continuous operation is possible unless this LED comes on.
(2) Step-out. 5V output abnormality for encoder
● When it detects the step-out Flashes (0.5-second intervals).
Drive pulse will not be accepted.
● It blinks at 5V output abnormality of the encoder.
(0.5-second intervals twice, repeat of off 1.5 seconds)
Drive pulse will not be accepted.
ENC LED will turn off.
By cutting off the power, please remove the cause Check the wiring
and connections and the like. And please ON the power.
WARNING
Overheating may cause fire.
Stop operation when this LED comes on.
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ADB-5F41EL
Instructions Manual