Mitsubishi C70 User Manual

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Appendix 7. Explanation of Alarms
Appendix 7.4 MCP Alarms (Y)
Appendix 7.4 MCP Alarms (Y)
(Note1) "Y02" alarms are displayed as "Y02 System alarm"with the error number. Error number is the four
digit number displayed displayed after error name(start from 0050). "Y02"alarms are listed in
ascending order in this manual.
(Note2) "Y20" alarms are displayed as "Y20 Safety observation alarm"with the error number. Error number is
the four digit number displayed displayed after error name(start from 0001). "Y20"alarms are listed
in ascending order in this manual.
(Note3) "Y21" warnings are displayed as "Y21 Safety observation warning"with the error number. Error
number is the four digit number displayed displayed after error name(start from 0001).
"Y21"warnings are listed in ascending order in this manual.
(Note4) "Y51" warnings are displayed as "Y51 Parameter error"with the error number. Error number is the
four digit number displayed displayed after error name(start from 0001). "Y51"warnings are listed in
ascending order in this manual.
Y02 System alm: Process time over 0050
Details
System alarm: Process time is over.
Remedy
The software or hardware may be damaged.
Contact the service center.
(Note 1) When two or more "Y02 System alarms" occur at the same time, only the alarm
which has occurred first is displayed.
(Note 2) Station No. always shows "0" in the alarm details, because C70 has only one
communication channel.
Y02 SV commu er: CRC error 1 0051 0000
Details
A communication error has occurred between controller and drive unit.
Remedy
- Take measures against noise.
- Check for any failure of the communication cable connectors between controller and drive
unit or between two drive units.
- Check for any failure of the communication cables between controller and drive unit or
between two drive units.
- A drive unit may be faulty. Take a note of the 7-segment LED contents of each drive unit
and contact the Service Center.
- Update the drive unit software version.
(Note) When two or more "Y02 System alarms" occur at the same time, only the alarm which
has occurred first is displayed.
Y02 SV commu er: CRC error 2 0051 0001
Details
A communication error has occurred between controller and drive unit.
Remedy
- Take measures against noise.
- Check for any failure of the communication cable connectors between controller and drive
unit or between two drive units.
- Check for any failure of the communication cables between controller and drive unit or
between two drive units.
- A drive unit may be faulty. Take a note of the 7-segment LED contents of each drive unit
and contact the Service Center.
- Update the drive unit software version.
(Note) When two or more "Y02 System alarms" occur at the same time, only the alarm which
has occurred first is displayed.

Mitsubishi C70 Specifications

General

Brand	Mitsubishi
Model	C70
Category	Control Unit
Language	English