APPENDIX
B–63614EN/01
G. ALARM LIST
779
Number ContentsMessage
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 n AXIS : HI HRV SETTING ERROR
(AMP)
This alarm is issued if it is specified that high–speed HRV control is to
be used for a controlled axis connected to an amplifier for which
high–speed HRV control cannot be used.
The details of servo alarm are displayed in the diagnosis display (No. 200
and No.204) as shown below.
#7
OVL200
#6
LV
#5
OVC
#4
HCA
#3
HVA
#2
DCA
#1
FBA
#0
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
ALD201
#6 #5 #4
EXP
#3 #2 #1 #0
When OVL equal 1 in diagnostic data No.200 (servo alarm No. 400 is
being generated):
#7 (ALD) 0 : Motor overheating
1 : Amplifier overheating
When FBAL equal 1 in diagnostic data No.200 (servo alarm No. 416 is
being generated):
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.
#7
204
#6
OFS
#5
MCC
#4
LDA
#3
PMS
#2 #1 #0
#6 (OFS) : A current conversion error has occured in the digital servo.
#5 (MCC) : A magnetic contactor contact in the servo amplifier has welded.
#4 (LDA) : The LED indicates that serial pulse coder C is defective.
#3 (PMS) : A feedback pulse error has occured because the feedback cable is
defective.
D Details of servo alarm