
8-6
Protective
Function
Function Explanation
LED
Display
Remarks
Alarm RY
(30A, B & C)
OVER HEAT OH2 (external equip. alarm), Operating conditions that need to be reviewed:
THR OPEN
Drive
Display
MEMORY ERROR Er 1 (drive), Operating conditions that need to be reviewed:
ELEC NOISE
HARDWARE MALF
Drive
Display
Protective
Function
Function Explanation
LED
Display
Remarks
Alarm RY
(30A, B & C)
Memory error
Detects memory EE-PROM malfunction.
E r 1
X
Protective
Function
Function Explanation
LED
Display
Remarks
Alarm RY
(30A, B & C)
Keypad
communication
Detects a continuous communication error between control PCB
and keypad panel. (If Inverter is operated from control circuit
terminals, it will continue to operate without an alarm signal,
enen if E r 2 occurs. When communication is restored, the E r 2
display will be cleared.)
E r 2
X
COMMUNICATION ERROR Er 2 (keypad), Operating conditions that need to be reviewed:
ELEC NOISE
HARDWARE MALF
WIRING
Drive
Display
External
Stops Drive by an external alarm signal.
O H 2
X
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