Mitsubishi Electric RD77MS2 User Manual page 614

Error code Error name
(Hexadecimal)
1B11H Operation setting for
incompletion of
home position return
error
1B70H Manual pulse
generator/
Incremental
synchronous
encoder input
selection error
1B71H Forced stop valid/
invalid setting error
1B72H Manual pulse
generator/
Incremental
synchronous
encoder input type
selection error
1B73H Operation cycle
setting error
1B75H Manual pulse
generator/
Incremental
synchronous
encoder input logic
selection error
1BAAH Synchronous
encoder via servo
amplifier invalid error
1C80H Driver error
1C81H Communication retry
counter error
1C82H WDT error
1C83H Unsupported
operation cycle
14 TROUBLESHOOTING
612
14.5 List of Error Codes
Error details and causes
The setting value of the home position return detailed
parameter "Operation setting for incompletion of home
position return" is outside the setting range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
The setting value of the detailed parameter 1 "Manual
pulse generator/Incremental synchronous encoder input
selection" is outside the setting range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
The setting value of the detailed parameter 1 "Forced
stop valid/invalid setting" is outside the setting range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
The setting value of the detailed parameter 2 "Manual
pulse generator/Incremental synchronous encoder input
type selection" is outside the setting range.
[Operation status at error occurrence]
The communication between servo amplifiers of target
axis is not executed.
(The servo amplifier's LED display remains "Ab".)
The setting value of the common parameter "Operation
cycle setting" is outside the setting range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
The setting value of the common parameter "[Pr.151]
Manual pulse generator/Incremental synchronous
encoder input logic selection" is outside the setting
range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
• The servo amplifier axis set as synchronous encoder
via servo amplifier is not supported with scale
measurement mode.
• In system construction, the unset up servo amplifier
axis is set as the synchronous encoder via servo
amplifier.
• In system construction, the axis set to "Invalid" at the
external synchronization encoder input is set as the
synchronous encoder via servo amplifier.
• The servo amplifier axis set as synchronous encoder
via servo amplifier is connected to the encoder
except Q171ENC-W8 (including the linear scale,
etc.).
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
Errors occur in the driver.
[Operation status at error occurrence]
The system stops immediately.
The Simple Motion module detects the communication
retry counter errors with the driver.
[Operation status at error occurrence]
The system stops immediately.
(The driver stops by the communication error.)
The Simple Motion module detects the WDT error of the
driver.
[Operation status at error occurrence]
The system stops immediately.
The setting value of the operation cycle to which
amplifier does not correspond is set up.
[Operation status at error occurrence]
The system stops immediately.
Remedy
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
With the setting brought into the setting range, write to
the flash ROM and switch the power on again or reset
the PLC.
Correct the setting value and turn the PLC READY
signal [Y0] from OFF to ON.
With the setting brought into the setting range, switch
the power on again or reset the PLC.
Confirm the alarm code by "[Md.114] Servo alarm" and
refer to the driver instruction manual for details.
• Check the SSCNET cable. (Connection error or
damage)
• Replace the driver in which the alarm
(communication error) occurred.
• Replace the Simple Motion module.
Replace the driver in which the WDT occurred.
With the setting brought into the supported range,
switch the power on again or reset the PLC.