YASKAWA SIGMA-7 Series User Manual

6.2 Warning Displays
6.2.2 Troubleshooting Warnings
6
Maintenance
6-43
A.93B:
Overheat Warning
The surrounding
temperature is too
high.
Check the surrounding
temperature using a
thermometer.
Lower the surrounding tem-
perature by improving the
installation conditions of the
Linear Servomotor or the
machine.
–
Operation was
performed under
an excessive load.
Use the accumulated
load ratio to check the
load during operation.
Reconsider the load and
operating conditions.
–
A failure occurred
in the SERVO-
PACK.
–
The SERVOPACK may be
faulty. Replace the SERVO-
PACK.
–
The temperature
detection circuit in
the Linear Servo-
motor is faulty or
the sensor
attached to the
machine is faulty.
–
The temperature detection
circuit in the Linear Servo-
motor may be faulty or the
sensor attached to the
machine may be faulty.
Replace the Linear Servo-
motor or repair the sensor
attached to the machine.
–
A.942:
Speed Ripple Com-
pensation Informa-
tion Disagreement
The speed ripple
compensation
information stored
in the encoder
does not agree
with the speed
ripple compensa-
tion information
stored in the
SERVOPACK.
–
Reset the speed ripple
compensation value on the
SigmaWin+.
*
–
Set Pn423 to n.1 (Do
not detect A.942 alarms).
However, changing the set-
ting may increase the speed
ripple.
*
–
Set Pn423 to n.0
(Disable speed ripple com-
pensation). However,
changing the setting may
increase the speed ripple.
*
A.94A:
Data Setting Warn-
ing 1 (Parameter
Number Error)
An invalid param-
eter number was
used.
Check the command
that caused the warn-
ing.
Use the correct parameter
number.
*
A.94b:
Data Setting Warn-
ing 2 (Out of Range)
The set com-
mand data was
clamped to the
minimum or maxi-
mum value of the
setting range.
Check the command
that caused the warn-
ing.
Set the parameter within
the setting range.
*
A.94C:
Data Setting Warn-
ing 3 (Calculation
Error)
The calculation
result of the set-
ting is not correct.
Check the command
that caused the warn-
ing.
Set the parameter within
the setting range.
*
A.94d:
Data Setting Warn-
ing 4 (Parameter
Size)
The parameter
size set in the
command is not
correct.
Check the command
that caused the warn-
ing.
Set the correct parameter
size.
*
A.94E:
Data Setting Warn-
ing 5 (Latch Mode
Error)
A latch mode error
was detected.
Check the command
that caused the warn-
ing.
Change the setting of
Pn850 or the LT_MOD data
for the LTMOD_ON com-
mand sent by the host con-
troller to an appropriate
value.
(This applies when using
the MECHATROLINK-II-
compatible profile.)
*
Continued on next page.
Continued from previous page.
Warning Number:
Warning 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