
APPENDIX
B–64154EN/01
G. ALARM LIST
667
No. DescriptionMessage
383 n AXIS : PULSE MISS (EXT) A count error occurred in the separate detector.
384 n AXIS : SOFT PHASE ALARM
(EXT)
The digital servo software detected invalid data in the separate de-
tector.
385 n AXIS : SERIAL DATA ERROR
(EXT)
Communication data from the separate detector cannot be received.
386 n AXIS : DATA TRANS. ERROR
(EXT)
A CRC or stop bit error occurred in the communication data being
received from the separate detector.
387 n AXIS : ABNORMAL ENCODER
(EXT)
An error occurs in the separate detector. For details, contact the
manufacturer of the scale.
#7
202
#6
CSA
#5
BLA
#4
PHA
#3
PCA
#2
BZA
#1
CKA
#0
SPH
#6 (CSA) : Check sum alarm has occurred.
#5 (BLA) : Battery low alarm has occurred.
#4 (PHA) : Phase data trouble alarm has occurred.
#3 (PCA) : Speed count trouble alarm has occurred.
#2 (BZA) : Battery zero alarm has occurred.
#1 (CKA) : Clock alarm has occurred.
#0 (SPH) : Soft phase data trouble alarm has occurred.
#7
DTE203
#6
CRC
#5
STB
#4
PRM
#3 #2 #1 #0
#7 (DTE) : Data error has occurred.
#6 (CRC) : CRC error has occurred.
#5 (STB) : Stop bit error has occurred.
#4 (PRM) : Parameter error alarm has occurred. In this case, a servo parameter error
alarm (No. 417) is also output.
5) Servo alarms
Number Message Contents
400 SERVO ALARM: n–TH AXIS OVER-
LOAD
The n–th axis (axis 1 to 8) overload signal is on. Refer to diagnosis dis-
play No. 201 for details.
401 SERVO ALARM: n–TH AXIS VRDY
OFF
The n–th axis (axis 1 to 8) servo amplifier READY signal (DRDY) went
off.
402 SERVO ALARM: SV CARD NOT EX-
IST
The axis control card is not provided.
403 SERVO ALARM: CARD/SOFT MIS-
MATCH
The combination of the axis control card and servo software is illegal.
The possible causes are as follows:
· A correct axis control card is not provided.
· Correct servo software is not installed on flash memory.
404 SERVO ALARM: n–TH AXIS VRDY
ON
Even though the n–th axis (axis 1 to 8) 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.
D The details of serial
pulse coder alarm