FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

APPENDIX
G. ALARM LIST
B–62764EN/01
902
Alarm
No.
RemedyDescriptionMeaning
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 internalto LSI for seri-
al data transfer. This check is made only when
power is turned on.
Remove cause, then reset
alarm.
AL–33 Insufficient DC link section
charging
Detects insuffieient charging of direct current pow-
er supply voltage in power circuit section when
magnetic contactor in amplifier is turned on (such
as open phase and defectifve charging resistor).
Remove cause, then reset
alarm.
AL–34 Parameter data setting be-
yond allowable range of val-
ues
Detects parameter data set beyond allowable
range of values.
Set correct data.
AL–35 Excesive gear ratio data set-
ting
Detects gear ratio data set beyond allowable
range of values.
Set correct data.
AL–36 Error counter over flow Detects error counter overflow. Correct cause, then reset
alarm.
AL–37 Speed detector parameter
setting error
Detects incorrect setting of parameter for number
of speed detection pulses.
Set correct data.
AL–39 Alarm for indicating failure in
detecting 1–rotation signal for
Cs contouring control
Detects 1–rotaion signal detection failure in Cs
contouring contorl.
Make 1–rotaion signal ad-
justment.
Check cable shield status.
AL–40 Alarm for indicating 1–rotation
signal for Cs contouring con-
trol not detected
Detects that 1–rotation signal has not occurred in
Cs contouring control.
Make 1–rotaion signal ad-
justment.
AL–41 Alarm for indicating failure in
detecting position coder 1–ro-
taion signal.
Detects failure in detecting position coder 1–rota-
tion signal.
Make signal adjustment
for signal conversion cir-
cuit.
Check cable shield status.
AL–42 Alarm for indicating position
coder 1–rotation signal not
detected
Detects that position coder 1–rotation signal has
not issued.
Make 1–rotation signal ad-
justment for signal conver-
sion circuit.
AL–43 Alarm for indicating discon-
nection of position coder sig-
nal for differential speed
mode
Detects that main spindle position coder signal
used for differential speed mode is not connected
yet (or is disconnected).
Check that main spindle
position coder signal is
connected to connector
CN12.

Leave a Reply

Your email address will not be published. Required fields are marked *