FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

APPENDIX
B–62754EN/01
G. ALARM LIST
773
Num-
ber
RemedyDescriptionMeaning
AL–09 Excessive load on main cir-
cuit section
Detects abnormal temperature rise of power tran-
sistor radiator.
Cool radiator then reset
alarm.
AL–10 Low input voltage Detects drop in input power supply voltage. Remove cause, then reset
alarm.
AL–11 Overvoltage in DC link sec-
tion
Detects abnormally high direct current power sup-
ply voltage in power circuit section.
Remove cause, then reset
alarm.
AL–12 Overcurrent in DC link section Detects flow of abnormally large current in direct
current section of power circuit
Remove cause, then reset
alarm.
AL–13 CPU internal data memory
abnormality
Detects abnormality in CPU internal data memory.
This check is made only when power is turned on.
Remove cause, then reset
alarm.
AL–15 Spindle switch/output switch
alarm
Detects incorrect switch sequence in spindle
switch/output switch operation.
Check sequence.
AL–16 RAM abnormality Detects abnormality in RAM for external data. This
check is made only when power is turned on.
Remove cause, then reset
alarm.
AL–18 Program ROM sum check er-
ror
Detects program ROM data error. This check is
made only when power is turned on.
Remove cause, then reset
alarm.
AL–19 Excessive U phase current
detection circuit offset
Detects excessive U phase current detection
circuit offset.
This check is made only when power is turned on.
Remove cause, then reset
alarm.
AL–20 Excessive V phase current
detection circuit offset
Detects excessive V phase current detection cir-
cuit offset.
This check is made only when power is turned on.
Remove cause, then reset
alarm.
AL–24 Serial transfer data error Detects serial transfer data error (such as NC pow-
er supply turned off, etc.)
Remove cause, then reset
alarm.
AL–25 Serial data transfer stopped Detects that serial data transfer has stopped. Remove cause, then reset
alarm.
AL–26 Disconnection of speed
detection signal for Cs con-
touring control
Detects abnormality in position coder signal(such
as unconnected cable and parameter setting er-
ror).
Remove cause, then reset
alarm.
AL–27 Position coder signal discon-
nection
Detects abnormality in position coder signal (such
as unconnected cable and adjustment error).
Remove cause, then reset
alarm.
AL–28 Disconnection of position
detection signal for Cs con-
touring control
Detects abnormality in position detection signal for
Cs contouring control (such as unconnected cable
and adjustment error).
Remove cause, then reset
alarm.
AL–29 Short–time overload Detects that overload has been continuously ap-
plied for some period of time (such as restraining
motor shaft in positioning).
Remove cause, then reset
alarm.
AL–30 Input circuit overcurrent Detects overcurrent flowing in input circuit. Remove cause, then reset
alarm.
AL–31 Speed detection signal dis-
connection motor restraint
alarm or motor is clamped.
Detects that motor cannot rotate at specified
speed or it is detected that the motor is clamped.
(but rotates at very slow speed or has stopped).
(This includes checking of speed detection signal
cable.)
Remove cause, then reset
alarm.
AL–32 Abnormality in RAM internal
to LSI for serial data transfer.
This check is made only
when power is turned on.
Detects abnormality in RAM interior LSI for serial
data transfer. This check is made only when power
is turned on.
Remove cause, then reset
alarm.

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