Okuma Alarm-C 3154 MCS Power supply unit error
The power unit caused an error.
Object
Axis name or none (spindle)
Character-string
None
Code
AAAAAAXX
AAAAAA is always 0.
X Alarm number
0:DC voltage alarm
1:Abnormal input voltage
2:Abnormal control power
3:Abnormal control status
4:Overload in regenerative circuit
5:Heat sink overheat
6:CPU error
7:Spare
1:Abnormal input voltage
2:Abnormal control power
3:Abnormal control status
4:Overload in regenerative circuit
5:Heat sink overheat
6:CPU error
7:Spare
Y: Power unit status
bit3 1:An alarm occurred in the power unit. (Warning signal status: 0)
bit2 1:DC power is being supplied
bit1 1:OPRON input is closed
bit0 1:PWON input is closed.
bit2 1:DC power is being supplied
bit1 1:OPRON input is closed
bit0 1:PWON input is closed.
ZZ: Data
X(alarm No.):0 … Detected DC voltage in hexadecimal [3.9V]
X(alarm No.):1 … Detected AC voltage in hexadecimal [3.1V]
X(alarm No.):2
X(alarm No.):1 … Detected AC voltage in hexadecimal [3.1V]
X(alarm No.):2
1:+5V abnormal voltage
2:+12V abnormal voltage
3:-12V abnormal voltage
2:+12V abnormal voltage
3:-12V abnormal voltage
X(alarm No.):3
1:Converter over current
2:Abnormal power element
3:Converter short circut
4:Abnormal regenerative circuit(type in power regenerative circuit)
5:Abnormal regenerative circuit(type in resistor discharge)
2:Abnormal power element
3:Converter short circut
4:Abnormal regenerative circuit(type in power regenerative circuit)
5:Abnormal regenerative circuit(type in resistor discharge)
X(alarm No.):4 Uncertain
X(alarm No.):5 Uncertain
X(alarm No.):6 Uncertain
Probable Faulty Locations
In the case of abnormal control power,
– Power unit
In the case of low voltage,
– Input voltage drop, power failure, blown fuse in input power circuit, or instantaneous power interruption
In the case of high voltage
– Power unit