(5) Overheat Alarm Signal Output（O.h.a - Melec GD-5410 Instruction Manual

(5) Overheat alarm signal output（O.H.A）
① Output current
● Use overheat alarm signal output（O.H.A）without fail.
● In case of internal temperature of the driver reaches approx. 70℃ or more,
this signal is output (photo-coupler ON) and O.H.A LED comes on.
At this time the motor output current is not blocked.
● When this signal is output, stop operation and check if there is any
abnormality occurring with the motor and the driver.
● Perform the cooling measure of the mounting plate is enlarged or
compulsion air cooling, for example, if this signal is output
while no abnormality is detected.
● Continuous operation is possible unless this signal is output.
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Overheating may cause fire.
Stop operation upon output of this signal.
a. I ≦6mA, V ＜2V
C CE
b. I ≦2mA, V ＜0.6V
C CE(sat)
V ≦30V
CEO
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Instructions Manual
R3