
APPENDIXG. ALARM LIST
B–63664EN/02
858
Number ContentsMessage
465 n AXIS : READ ID DATA FAILED At power–up, amplifier initial ID information could not be read.
466 n AXIS : MOTOR/AMP COMBINA-
TION
The maximum current rating for the amplifier does not match that for
the motor.
467 n AXIS : ILLEGAL SETTING OF
AXIS
The servo function for the following has not been enabled when an
axis occupying a single DSP (corresponding to two ordinary axes) is
specified on the axis setting screen.
1. Learning control (bit 5 of parameter No. 2008 = 1)
2. High–speed current loop (bit 0 of parameter No. 2004 = 1)
3. High–speed interface axis (bit 4 of parameter No. 2005 = 1)
468 HI HRV SETTING ERROR (AMP) Use of high–speed HRV is specified for a controlled axis of an ampli-
fier which does not support high–speed HRV.
The details of servo alarm No. 414 are displayed in the diagnosis display
(No. 200 and No.204) as shown below.
#7 #6 #5 #4 #3 #2 #1 #0
OVL
LV
OVC HCA HVA DCA FBA OFA200
OFA : An overflow alarm is being generated inside of digital servo.
FBA : A disconnection alarm is being generated.
(This bit causes servo alarm No.416.The details are indicated
in diagnostic data No. 201)
DCA: A regenerative discharge circuit alarm is being generated in
servo amp.
Check LED.
HVA : An overvoltage alarm is being generated in servo amp.
Check LED.
HCA: An abnormal current alarm is being generated in servo amp.
Check LED.
OVC: A overcurrent alarm is being generated inside of digital servo.
LV : A low voltage alarm is being generated in servo amp.
Check LED.
OVL: An overload alarm is being generated.
(This bit causes servo alarm No. 400. The details are indicated
in diagnostic data No.201).
#7 #6 #5 #4 #3 #2 #1 #0
OFS
MCC LDA PMS204
PMS : A feedback pulse error has occured because the feedback cable
is defective.
LDA : The LED indicates that serial pulse coder C is defective
MCC : A magnetic contactor contact in the servo amplifier has
welded.
OFS : A current conversion error has occured in the digital servo.
The details of servo alarms No. 400 and No. 416 are displayed in the
diagnosis display (No. 201) as shown below.
#7 #6 #5 #4 #3 #2 #1 #0
ALD EXP201
When OVL equal 1 in diagnostic data No.200
(servo alarm No. 400 is being generated):
ALD
0 : Motor overheating
1 : Amplifier overheating
D Details of servo
alarm No.414
D Details of servo
alarms No. 400 and
No.416