7-7
MHT260a (Engl.)
(3) Alarm detection
The contents of current alarm can be displayed with codes. When [ ] is displayed, the alarm history can be displayed.
When an alarm is detected, the following indication will appear.
Major fault Minor fault
Indication Description Indication Description
System error (SE) Resistor heat (rH)
Overcurrent (OC) Deviation excessive (OF)
Overspeed (OS) Amplifier overheat (AH)
Undervoltage (Lv)
Encoder overheat (EH)
Overvoltage (Hv) Absolute data lost (AL)
Encoder trouble (Et) Absolute data overflow (AF)
Circuit trouble (Ct) Terminal error (tE)
Memory error (dE)
Fuse blown (Fb)
Combination error (CE)
Resistor heat 2 (rH2)
Encoder communication error (EC)
Cont (Control signal) error (CtE)
Overload (OL)
Remarks : The alarm codes are indicated automatically.
On this indication, if the alarm detection is reset by the control input signal, the initial screen (system para. 89 setting) is
displayed.
Resetting of alarm detection can also be executed in the test running mode.
(4) Alarm history
The last 9 times of alarm detection history can be indicated. The indication can be scrolled by the ∧key and ∨ key.
Alarm history indication (A)
Detected history number (1: latest, 9: oldest) Alarm code (See (3).)
Remark : The alarm history can be deleted by the test running mode [
].
Press the ∧key and ∨ key simultaneously for 1 [s] or more while alarm detection is indicated to reset the alarm detection.
∧，∨
larm code
ENT (1 [s] or more)
ESC
ENT (1 [s] or more)
ESC
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