Troubleshooting When S2 Indicator Is Lit In Red - YASKAWA MP210 Series User Manual

6 Maintenance, Inspection, and Troubleshooting

6.4.4 Troubleshooting when S2 Indicator Is Lit in Red

6.4.4 Troubleshooting when S2 Indicator Is Lit in Red
When the S2 LED indicator on the front panel of the MP2100/MP2100M lights/flashes in red, it is likely that a
hardware error (calculation error or I/O error) is occurring. Set the MP2100/MP2100M in the stopped status (DIP
SW 6: ON), and then investigate the cause using the following flowchart.
(a)
(b)
Check the following register of the drawing
type specified in (a) to learn the error DWG
number.
DWG.A
DWG.I
DWG.H
DWG.L
Check the following register of the
drawing type specified in (a) to learn
the reference source drawing number.
DWG.A
DWG.I
DWG.H
DWG.L
Check the following register of the drawing
type specified in (a) to learn the step number
of the reference source drawing number.
DWG.A
DWG.I
DWG.H
DWG.L
Check the functions written in the step
number to find the cause of the error code
found in (b) and correct the error.
Note: 1. For details on SW00041, refer to 6.4.5 (2) System Error Status.
2. For details on the system registers from SW00080 to SW00088, refer to 6.4.5 (3) Ladder Program User
Operation Error Status.
3. For details on the system registers from SW00110 to SW00188, refer to 6.4.5 (3) Ladder Program User
Operation Error Status.
4. For details on the system registers from SW00200 to SW00247, refer to 6.4.5 (6) System I/O Error Status.
6-14
START
( 1)
Check SW00041.
NO
SW00041 bit 8 = 1?
(User operation error)
YES
Check the registers from SW00080
SW00088 to find the drawing type in
( 2)
which the error count increased.
Check the following register of the
drawing type specified in (a) to learn the
( 3)
error code.
DWG.A : SW00111
DWG.I : SW00127
DWG.H : SW00143
: SW00175
DWG.L
( 3)
: SW00122
: SW00138
: SW00154
: SW00186
Is the drawing number 8000H?
YES (Operation error inside function)
( 3)
: SW00123
: SW00139
: SW00155
: SW00187
Open the reference source drawing
by using the MPE720 ladder editor.
( 3)
: SW00124
: SW00140
: SW00156
: SW00188
SW00041 bit 9 = 1?
YES
(I/O error)
Check the I/O error status
(SW00200 to SW00247) to
find the error and correct it.
NO (Operation error inside drawing)
Open the faulty drawing by
using the MPE720 ladder editor.
Check the drawing to find the cause of
the error code found in (b), and correct the
error.
NO
Replace the
(Hardware failure)
MP2100/MP2100M.
( 4)