
3
1
4
5
6
7
8
9
10
2
394
Number ContentsMessage
466 n AXIS : MOTOR/AMP
COMBINATION
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 (corre-
sponding 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)
NOTE If any of servo alarms 400 to 421 occurs, investigate the cause of
the alarm and take appropriate action, as described in the mainte-
nance manual.
D Details of servo alarm
The details of servo alarm are displayed in the diagnosis display (No.
200, 201, 204) as shown below.
#7
#6 #5 #4 #3 #2 #1 #0
200
OVL LV OVC HCA HVA DCA FBA OFA
#7 (OVL) : An overload alarm is being generated.
#6 (LV) : A low voltage alarm is being generated in servo amp.
#5 (OVC) : A overcurrent alarm is being generated inside of
digital servo.
#4 (HCA) : An abnormal current alarm is being generated in
servo amp.
#3 (HVA) : An overvoltage alarm is being generated in servo
amp.
#2 (DCA) : A regenerative discharge circuit alarm is being
generated in servo amp.
#1 (FBA) : A disconnection alarm is being generated.
#0 (OFA) : An overflow alarm is being generated inside of digital
servo.
#7
#6 #5 #4 #3 #2 #1 #0
201
ALD EXP
When OVL equal 1 in diagnostic data No.200 :
#7 (ALD) 0 : Motor overheating
1 : Amplifier overheating
When FBAL equal 1 in diagnostic data No.200 :
ALD
EXP Alarm details
1 0 Built–in pulse coder disconnection (hardware)
1 1 Separately installed pulse coder disconnection
(hardware)
0 0 Pulse coder is not connected due to software.