
QuickTurn™
GE Fanuc Automation S.A. Page 48 GFKE-0047C-EN
Servo alarms
Number Alarm Details
400 SERVO ALARM: n-TH AXIS
OVERLOAD
The n-th axis (axis 1-2) overload signal is on. Refer to
diagnosis display No. 201 for details.
401 SERVO ALARM: n-TH AXIS
VRDY OFF
The n-th axis (axis 1-2) servo amplifier READY signal (DRDY)
went off.
404 SERVO ALARM: n-TH AXIS
VRDY ON
Even though the n-th axis (axis 1-2) READY signal (MCON)
went off, the servo amplifier READY signal (DRDY) is still on.
Or, when the power was turned on, DRDY went on even
though MCON was off.
Check that the servo interface module and servo amp are
connected.
405 SERVO ALARM: (ZERO POINT
RETURN FAULT)
Position control system fault. Due to an NC or servo system
fault in the reference position return, there is the possibility
that reference position return could not be executed correctly.
Try again from the manual reference position return.
410 SERVO ALARM: n-TH AXIS -
EXCESS ERROR
The position deviation value when the n-th axis (axis 1-2)
stops is larger than the set value.
Note) Limit value must be set to parameter No.1829 for each
axis.
411 SERVO ALARM: n-TH AXIS -
EXCESS ERROR
The position deviation value when the n-th axis (axis 1-2)
moves is larger than the set value.
Note) Limit value must be set to parameter No.1828 for each
axis.
413 SERVO ALARM: n-th AXIS -
LSI OVERFLOW
The contents of the error register for the n-th axis (axis 1-2)
and beyond the range of -2
31
to 2
31
. This error usually occurs
as the result of an improperly set parameters.
414 SERVO ALARM: n-TH AXIS –
DETECTION RELATED ERROR
N-th axis (axis 1-2) digital servo system fault. Refer to
diagnosis display No. 200 and No.204 for details.
415 SERVO ALARM: n-TH AXIS -
EXCESS SHIFT
A speed higher than 511875 units/s was attempted to be set in
the n-th axis (axis 1-2). This error occurs as the result of
improperly set CMR.
416 SERVO ALARM: n-TH AXIS -
DISCONNECTION
Position detection system fault in the n-th axis (axis 1-2) pulse
coder (disconnection alarm). Refer to diagnosis display No.
201 for details.
417 SERVO ALARM: n-TH AXIS -
PARAMETER INCORRECT
This alarm occurs when the n-th axis (axis 1-2) is in one of the
conditions listed below. (Digital servo system alarm)
1) The value set in Parameter No. 2020 (motor form) is out of
the specified limit.
2) A proper value (111 or -111) is not set in parameter
No.2022 (motor revolution direction).
3) Illegal data (a value below 0, etc.) was set in parameter No.
2023 (number of speed feedback pulses per motor
revolution).
4) Illegal data (a value below 0, etc.) was set in parameter No.
2024 (number of position feedback pulses per motor
revolution).
5) Parameters No. 2084 and No. 2085 (flexible field gear rate)
have not been set.
6) A value outside the limit of {1 to the number of control axes}
or a non-continuous value (Parameter 1023 (servo axis
number) contains a value out of the range from 1 to the
number of axes, or an isolated value (for example, 3 not
preceded by 2).was set in parameter No. 1023 (servo axis
number).