
1. DISPLAY AND OPERATION
B–63465EN/01
6
If a problem arises when an RS–232C interface is used to input or output
parameters, the status can be determined by the following:
010 Reader/punch interface output in progress (RS–232C)
011 Reader/punch interface input in progress (RS–232C)
014 Emergency stop
030 Position of the character that caused a TH alarm, relative to the beginning (RS–232C)
031 Data read from the character that caused a TH alarm (RS–232C)
If a servo alarm related to the servo amplifier is issued, detailed
information about the alarm can be obtained.
Diagnostic indications No. 200, No. 201, and No. 204 provide detailed
information about an amplifier–related servo alarm.
#7
OVL200
#6
LV
#5
OVC
#4
HCA
#3
HVA
#2
DCA
#1
FBA
#0
OFA
OVL: An overload alarm has been issued. (Diagnostic indication No. 201 gives
further information.)
LV: A low–voltage alarm from the servo amplifier has been detected. Check
the servo amplifier LED.
OVC: An overcurrent alarm from the inside of the digital servo has been
detected.
HCA: An abnormal–current alarm from the servo amplifier has been detected.
Check the servo amplifier LED.
HVA: A high–voltage alarm from the servo amplifier has been detected. Check
the servo amplifier LED.
DCA: A regenerative–discharge alarm from the servo amplifier has been
detected. Check the servo amplifier LED.
FBA: A broken–wire alarm has been issued. (Diagnostic indication No. 201
gives further information.)
OFA: An overflow alarm has been issued from the inside of the digital servo.
1.3.2
Diagnostic Data
Indications
RS–232C–related and
other indications
Details of servo alarms