Troubleshooting; Reading Error Codes - Yamato RE202-A/212-A Instruction Manual

Unit has a self-diagnostic function built into the CPU board. The table below shows possible causes
and measures to take when safety function is performed.
[Error Codes]
When an operational error or malfunction occurs, an error code is displayed on the control panel.
When an error occurs, confirm the error code and terminate operation immediately.
Display code
Other warnings (displayed alternately with rpm reading)
Display alert
"Pon" displayed after
power loss
Description
Motor failure
(E72)
EEPROM failure
(E15)
Alert description
Power failure
notification

8. TROUBLESHOOTING

Possible causes and measures
 Motor overload
 Overvoltage
 Voltage drop
 Rotary sensor failure
Turn OFF (○) power and restart.
If unit does not reset, contact original dealer of
purchase.
 Error in a storage element EEPROM on the
controller board
Turn OFF (○) power and restart.
If unit does not reset, contact original dealer of
purchase.
Possible causes and measures
 When a power failure occurs during operation,
rpm reading and "Pon" are displayed alternately
on the control panel to indicate that a power
failure has occurred
Turn OFF (○) power and restart.
 With auto-resume function "ON", unit resumes
operation. Remain standby when set to "OFF".
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Reading Error Codes