Omron R88D-KN series User Manual page 386

12 Troubleshooting and Maintenance
Error No. (hex)
Name
Main Sub
34 0 Overrun Limit
Error
36 0 Object Error
1
2
37 0 Object
Corrupted
1
2
38 0 Drive
Prohibition
Input Error 1
1 Drive
Prohibition
Input Error 2
50 0 External
Encoder
Connection
Error
1 External
Encoder
Communicati
ons Data
Error
12-16
Cause
The motor exceeded the allowable operating
range set in the Overrun Limit Setting (3514
hex) with respect to the position command
input range.
• The gain is not appropriate.
• The set value of object 3514 hex is too
small.
Data in the Object Save Area was corrupted
when the power supply was turned ON and
data was read from the EEPROM.
EEPROM write verification data was
corrupted when the power supply was turned
ON and data was read from the EEPROM.
When the Drive Prohibition Input Selection
(3504 hex) was set to 0, both the Positive
Drive Prohibition Input (POT) and the
Negative Drive Prohibition Input (NOT)
turned ON. When object 3504 hex was set to
2, either the Positive Drive Prohibition Input
or the Negative Drive Prohibition Input
turned ON.
When object 3504 hex was set to 0 and
Magnetic Pole Position Estimation was in
progress, either the Positive Drive Prohibition
Input or the Negative Drive Prohibition Input
turned ON.
POT or NOT turned ON while operation was
being performed for a CX-Drive operation
command.
Or an operation command (such as a trial
run or FFT) was received from the CX-Drive
when:
• Object 3504 hex was set to 0, EtherCAT
communications were interrupted, and
either POT or NOT was ON.
A disconnection was detected because
communications between the external
encoder and the Servo Drive were
interrupted more than the specified number
of times.
There was a communications error in data
from external encoder. There was a data
error mainly due to noise. The external
encoder connection cable is connected, but
a communications data error occurred.
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Measures
• Check the gains (the balance between
position loop gain and speed loop gain)
and the mass ratio.
• Increase the set value of object 3514 hex.
Alternatively, set object 3514 hex to 0 to
disable the protection function.
• Reset all of the objects.
• If this error occurs repeatedly, the Servo
Drive may be faulty. In this case, replace
the Servo Drive. Return the Servo Drive to
the dealer that it was purchased from and
ask for investigation and repair.
The Servo Drive is faulty. Replace the Servo
Drive. Return the Servo Drive to the dealer
that it was purchased from and ask for
investigation and repair.
Check for any problems with the switches,
wires, and power supplies that are
connected to the Positive Drive Prohibition
Input or the Negative Drive Prohibition Input.
In particular, check to see if the control signal
power supply (12 to 24 VDC) turned ON too
slowly.
Wire the external encoder correctly as
shown in the connection diagram. Correct
the connector pin connections.
• Provide the required external encoder
power supply voltage 5 VDC 5% (4.75 to
5.25 V). Be careful especially when the
external encoder connection cable is long.
• If the motor cable and the external
encoder connection cable are bundled
together, separate them.
• Connect the shield to FG. Refer to the
external encoder connection diagram.