
APPENDIXG. ALARM LIST
B–63534EN/02
1218
ERROR CODES (SERIAL SPINDLE)
NOTE*1
Note that the meanings of the SPM indications differ
depending on which LED, the red or yellow LED, is on.
When the yellow LED is on, an error code is indicated with
a 2–digit number. The error code is not displayed on the
CNC screen.
When the red LED is on, the SPM indicates the number of
an alarm generated in the serial spindle.
³ See Item, “Alarm List (Serial Spindle).”
Errors Displayed on the Spindle Amplifier
SPM
indica-
tion(*1)
Faulty location and remedy Description
01 Check the *ESP and MRDY sequence. (For MRDY, pay
attention to the parameter setting regarding the use of the
MRDY signal (bit 0 of parameter No. 4001).)
Although neither *ESP (emergency stop signal; there
are two types of signals including the PMC signal and
PSM contact signal(*2)) nor MRDY (machine ready sig-
nal) is input, SFR (forward rotation signal)/SRF (reverse
rotation signal)/ORCM (orientation command) is input.
02 Check the spindle motor speed detector parameter (bits
2, 1, and 0 of parameter No. 4011).
When the spindle motor has a high–resolution magnet-
ic pulse coder (Cs sensor) (bits 6 and 5 of parameter
No. 4001 are set to 0 and 1, respectively), 128 /rev is
to be set for the speed detector (bits 2, 1, and 0 of pa-
rameter No. 4011 are set to 0, 0, and 1, respectively).
However, a value other than 128 /rev is set. In this
case, the motor is not excited.
03 Check the parameters for the detector for Cs contour
control (bit 5 of parameter No. 4001 and bit 4 of parame-
ter No. 4018).
Although use of a high–resolution magnetic pulse cod-
er (bit 5 of parameter No. 4001 = 1) or use of the Cs con-
tour control function by the sensor (bit 4 of parameter
No. 4018 = 1) is not set, a Cs control command is input.
In this case, the motor is not excited.
04 Check the position coder signal parameter (bit 2 of pa-
rameter No. 4001).
Although use of the position coder signal (bit 2 of pa-
rameter No. 4001 = 1) is not set, a servo mode (rigid tap-
ping, spindle positioning) or spindle synchronization
command is input. In this case, the motor is not excited.
05 Check the orientation software option. Although the orientation option is not set, an orientation
command (ORCM) is input.
06 Check the spindle output switching software option and
power line status signal (RCH).
Although the output switching option is not set, the low–
speed winding is selected (RCH = 1).
07 Check the sequence (CON, SFR, SRV). Although the Cs contour control mode is specified,
SFR/SRV is not input.
08 Check the sequence (SFR, SRV). Although the servo mode (rigid tapping, spindle posi-
tioning) is specified, SFR/SRV is not input.
09 Check the sequence (SPSYC, SFR, SRV) Although spindle synchronization mode is specified,
SFR/SRV is not input.
10 During execution of the C–axis control command, do not
specify another operation mode. Before entering anoth-
er mode, cancel the Cs contour control command.
Although Cs contour control mode is set, another op-
eration mode (servo mode, spindle synchronization, or
orientation) is specified.
11 During execution of the servo mode command, do not
specify another operation mode. Before entering anoth-
er mode, cancel the servo mode.
Although servo mode (rigid tapping, or spindle position-
ing) is set, another operation mode (Cs contour control,
spindle synchronization, or orientation) is specified.