YASKAWA SIGMA-7 Series User Manual

6.1 Alarm Displays
6.1.2 Troubleshooting Alarms
6
Maintenance
6-33
A.E94:
Position Correc-
tion Table
Setting Error
The data set in the
Position Correction
Tab le ( p re -co rrect ion
positions and correc-
tion amounts) is cor-
rupted.
Check the pre-correc-
tion positions and cor-
rection amounts in the
Position Correction
Table.
Initialize the Position Cor-
rection Table.
Restart the SERVOPACK
after initialization. If it
starts normally, set the
Position Correction Table
again.
If the SERVOPACK does
not start normally after ini-
tialization, it may be faulty.
Replace the SERVO-
PACK.
page 3-8
page 3-20
The Position Correc-
tion Table was set
with values outside
the setting range.
Check if the table
entries, pre-correction
positions, correction
amounts, correction
positions (pre-correc-
tion positions+correc-
tion amounts) have
exceeded the setting
ranges.
Set the number of Posi-
tion Correction Table
entries between 2 and
128.
page 3-7
Set pre-correction posi-
tions, correction amounts,
and correction positions
between -2,147,483,648
and 2,147,483,647.
Set the difference
between one pre-correc-
tion position and the fol-
lowing pre-correction
position between
-1,073,741,824 and
1,073,741,823.
Set the difference
between one correction
amount and the following
correction amount
between -1,073,741,824
and 1,073,741,823.
The pre-correction
positions in the Posi-
tion Correction Table
are not set in ascend-
ing order.
Check if the pre-correc-
tion positions are set in
ascending order.
Set the Position Correc-
tion Table so that the pre-
correction positions are in
ascending order.
page 3-7
The correction posi-
tions calculated from
the pre-correction
positions and correc-
tion amounts in the
Position Correction
Table are not in
ascending order.
Check if the correction
positions (pre-correc-
tion positions+correc-
tion amounts) are set in
ascending order.
Set the Position Correc-
tion Table so that the cor-
rection positions are in
ascending order.
page 3-7
A.Ed1:
Command Exe-
cution Timeout
A timeout error
occurred for a
MECHATROLINK
command.
Check the motor status
when the command is
executed.
Execute the SV_ON or
SENS_ON command only
when the motor is not
operating.
–
Check the encoder sta-
tus when the command
is executed.
Execute the SENS_ON
command only when an
encoder is connected.
–
Continued on next page.
Continued from previous page.
Alarm Number:
Alarm Name
Possible Cause Confirmation Correction Reference

YASKAWA SIGMA-7 Series Specifications

General

Encoder Resolution	24-bit absolute encoder
Pollution Degree	2
Cooling Method	Natural cooling or forced air cooling
Control Method	Vector control
Communication Protocols	EtherCAT, MECHATROLINK-III
Input Voltage	AC 200 V, AC 400 V
Rated Output	Varies by model
Safety Function	STO (Safe Torque Off), SS1 (Safe Stop 1), SS2 (Safe Stop 2), SLS (Safely Limited Speed), SBC (Safe Brake Control)
Power Supply Voltage	AC 200 V, AC 400 V
Rated Output Current	Varies by model
Protection Functions	Overload, overvoltage, undervoltage, overheat, short circuit
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C to 65°C
Vibration Resistance	5.9 m/s² at 10 Hz to 55 Hz
Ambient Humidity	5% to 95% RH (non-condensing)
Altitude	Up to 1000 m
Installation	Panel mounted