Instruction manual

11. ERROR CODES STORED AT THE PCPU
11 − 12
Table 11.3 Servo Amplifier Error List (2000 to 2799)
Error Cause
Error
Code
Amplifier
Type
Name Description
When Error Checked Error Processing Corrective Action
A
P-N non-wiring
•
P-N of the servo power supply
module are not wired to P-N of the
ADU.
•
Reconsider wiring.
•
The power supply voltage is less
than 160 VAC. (320VAC or less for
400VAC series servo)
•
Measure the input voltage (R, S, T) with
a voltmeter.
•
A momentary power, interruption of
15ms or longer has occurred.
•
Monitor with an oscilloscope to check
whether a momentary power
interruption has occurred.
2010
M
Low voltage
•
The power supply voltage dropped,
for example when motion control
started, due to insufficient power
capacity.
At any time during operation.
•
Review the power capacity.
A
Internal memory
alarm
•
ADU's SRAM fault.
•
At power-on of servo
amplifier
•
Change the ADU.
2012
M
Memory error 1
•
Servo amplifier SRAM is faulty.
•
Servo amplifier EPROM check sum
error.
•
When the servo amplifier
power is turned ON
•
At the leading edge of the
PLC READY flag (M2000)
•
When a servo error is reset
•
When the power to the
servo system CPU is
turned ON
•
Replace the servo amplifier.
2013
M
Clock error
•
Servo amplifier clock fault.
•
Replace the servo amplifier.
•
Servo control system fault
•
Reset and recheck the servo system
CPU.
A
•
ADU fault
•
Change the ADU.2014
M
Watchdog
•
Servo amplifier hardware fault
•
Servo system CPU hardware fault
At any time during operation
•
Replace the servo amplifier.
•
Replace the servo system CPU.
A
2-port memory
alarm
•
ADU's 2-port memory fault.
•
At power-on of servo
amplifier
•
At servo error reset
•
Reset and recheck the servo system
CPU.
•
Change the ADU.
2015
M
Memory error 2
•
Servo amplifier EEPROM fault
•
When the servo amplifier
power is turned ON
•
At the leading edge of the
PLC READY flag (M2000)
•
When a servo error is reset
•
When the power to the
servo system CPU is
turned ON
•
Replace the servo amplifier.
A
•
At initialization, communication with
encoder is not normal.
•
The encoder type (ABS/INC) set in
system settings differs from the
actual encoder type.
•
At power-on of servo
amplifier
•
At servo error reset
•
Reset and recheck the servo system
CPU.
•
Change the servo motor (encoder).
•
Reconsider the system settings.
2016
M
Encoder error 1
•
Fault in communication with the
encoder
•
When the servo amplifier
power is turned ON
•
At the leading edge of the
PLC READY flag (M2000)
•
When a servo error is reset
•
When the power to the
servo system CPU is
turned ON
•
Check the encoder cable connector for
disconnection.
•
Change the servo motor.
•
Change the encoder cable.
•
Check the combination of encoder
cable type (2-wire/4-wire type) and
servo parameter.
A
•
ADU's analog-to-digital converter is
faulty.
•
At power-on of servo
amplifier
•
At servo error reset
•
Reset and recheck the servo system
CPU.
•
Change the ADU.
2017
M
PCB error
•
Faulty device in the servo amplifier
PCB.
•
When the servo amplifier
power is turned ON
•
At the leading edge of the
PLC READY flag (M2000)
•
When a servo error is reset
•
When the power to the
servo system CPU is
turned ON
•
Replace the servo amplifier.
2019
M
Memory error 3
•
Servo amplifier flash ROM check
sum error
•
When the servo amplifier
power is turned ON
•
At the leading edge of the
PLC READY flag (M2000)
•
When a servo error is reset
•
When the power to the
servo system CPU is
turned ON
Immediate stop
•
Replace the servo amplifier.