
B–64115EN/01
6. DIGITAL SERVO
389
#7
OVLAlarm1
#6
LV
#5
OVC
#4
HCA
#3
HVA
#2
DCA
#1
FBA
#0
OFA
DGN (200) :
#7 (OVL) : Overload alarm
#6 (LV) : Insufficient voltage alarm
#5 (OVC) : Overcurrent alarm
#4 (HCA) : Abnormal current alarm
#3 (HVA) : Excessive voltage alarm
#2 (DCA) : Discharge alarm
#1 (FBA) : Disconnection alarm
#0 (OFA) : Overflow alarm
#7
ALDAlarm2
#6 #5 #4
EXP
#3 #2 #1 #0
DGN (201) ⇓
0 — — — Amplifier overheat
alarm
1 — — — Motor overheat
nection
1 — — 1 Separate type pulse coder disconnec-
tion (Hardware)
0 — — 0 Pulse coder disconnection (software)
#7
Alarm3
#6
CSA
#5
BLA
#4
PHA
#3
RCA
#2
BZA
#1
CKA
#0
SPH
DGN (202) :
#6 (CSA) : Hardware of serial pulse coder is abnormal.
#5 (BLA) : Battery voltage is in low (warning).
#4 (PHA) : Serial pulse coder or feedback cable is abnormal.
Counting the feedback signal is in error.
#3 (RCA) : Serial pulse coder is faulty.
Counting is in error.
If the RCA bit is set to 1 when both the FBA bit (bit 1 of alarm 1) and
ALD bit of alarm 2 are set to 1 and the EXP bit of alarm 2 (internal
hardware disconnection) is set to 1, a count miss alarm (CMAL)
occurs in the α pulse coder.
#2 (BZA) : Battery voltage becomes 0.
Replace batteries and set the reference position.
#1 (CKA) : Serial pulse coder is faulty.
Internal clock has stopped.
#0 (SPH) : Serial pulse coder or feedback cable is faulty.
Counting the feedback signal is in error.