YASKAWA Sigma Mini SGMM Series User Manual page 276

LIST OF ALARM DISPLAYS
Alarm Alarm
Display Output
on Digital
Operator
A.02 OFF Parameter
breakdown
A.04 OFF Parameter setting
error
A.10 OFF Overcurrent
A.31 OFF Position error pulse
overflow
A.51 OFF Overspeed
D
A.70 OFF Overload
A.80 OFF Encoder error
A.b1 OFF Reference input
read error
A.C1 OFF Servo overrun
detected
A.C2 OFF Encoder output
phase error
A.C3 OFF Encoder phase-A,
-B disconnection
A.C4 OFF Encoder phase-C
disconnection
CPF00 Unde- Digital Operator
fined transmission error
1
CPF01 Unde- Digital Operator
fined transmission error
2
A.99 ON Not an error
OFF:
ON:
TERMS
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Alarm Display
Alarm Name
Checksum results of parameters are abnormal.
The parameter setting is outside the allowable setting range.
An overcurrent flowed through the power transistor.
Position error pulse has exceeded the value set in parameter
Cn-1E (overflow).
Motor speed has exceeded 4950 min
Rated torque was exceeded during continuous operation.
The number of encoder feedback pulses is abnormal.
Servopack CPU failed to detect reference input.
The Servomotor (encoder) ran out of control.
Phase-A, -B and -C output by the encoder are abnormal.
Wiring in encoder phase A or B is disconnected.
Wiring in encoder phase C is disconnected.
Digital Operator fails to communicate with Servopack even five
seconds after power is turned ON.
Transmission error has occurred five consecutive times.
Normal operation status
Output transistor is OFF (alarm state)
Output transistor is ON
Checksum
An automatic check function for a set of data such as parameters. It stores the sum of pa-
rameter data, recalculates the sum at specific timing, and then checks whether the stored
value matches the recalculated value. This function is a simple method of checking whether
a set of data is correct.
— D-2 —
Meaning
−1
.
Remarks
For the
speed/
torque
control
(only with
the zero-
clamp
function),
and for the
position
control
For speed/
torque
control
These
alarms are
not stored
in alarm i l
traceback
memory.