M800/M80/E80/C80 Series Alarm/Parameter Manual
4 MCP Alarms (Y)
Y15
RIO connection error
Details
RIO station number is too large
Although a non-RIO2.0 unit is connected, 9 or a greater number is set as a station No.
Remedy
If a non-RIO2.0 unit is connected, set the station No. to be 8 or smaller.
If you use 9 or a greater station No., do not connect a non-RIO2.0 unit.
Y15
RIO connection error
Details
RIO3 connection error
A non-RIO2.0 unit is connected to RIO3.
Remedy
Connect a RIO2.0-compatible or RIO2.0-dedicated unit.
Y15
RIO connection error
Details
RIO communication processing time exceeded (PC medium speed)
Due to too short DI/DO refresh cycle, the control may not refresh all the DI/DOs connected to one RIO channel
at a time.
Remedy
Correct the setting of "#1334 DI/DO refresh cycl(DI/DO refresh cycle)".
Connect the remote IO units to RIO1, RIO2 and RIO3 dispersedly to reduce the number of RIO stations
connected per RIO channel.
Y15
RIO connection error
Details
RIO communication processing time exceeded (PC high speed)
Due to too short DI/DO refresh cycle, the control may not refresh all the DI/DOs connected to one RIO channel
at a time.
Remedy
Connect the remote IO units to RIO1, RIO2 and RIO3 dispersedly to reduce the number of RIO stations
(which perform high-speed input/output) per RIO channel.
Y20
Parameter compare error
Details
The speed monitoring parameter in the NC does not correspond to the parameter transmitted to the drive unit.
The name of the axis with an error is displayed.
Remedy
The NC or the servo drive unit may be damaged.
Contact the service center.
Y20
Sfty obsrvation: Cmd spd err
Details
The speed exceeding the speed set with the parameter was commanded during the speed monitoring mode.
The name of the axis with an error is displayed.
Remedy
Check the speed monitoring parameter and the sequence program.
Restart the NC.
Y20
Sfty obsrvation: FB pos err
Details
The commanded position, transmitted to the servo drive unit from NC, is totally different from the feedback po-
sition received from the servo drive unit during the speed monitoring mode.
The name of the axis with an error is displayed.
Remedy
The NC or the servo drive unit may be damaged.
Contact the service center.
IB-1501279-H
0001
0002
0003
0004
0001
0002
0003
72
(Error channel)
(Error channel)
(Error channel)
(Error channel)
(Axis name)
(Axis name)
(Axis name)