Processing Flow When A System Error Occurs - YASKAWA MP2100 Series User Manual

13.2.2 Processing Flow When a System Error Occurs

The following illustration shows the processing flow when a system error occurs.
START
Classify error contents
based on the indicator
1
pattern.*
Battery alarm?
(BAT indicator lit?)
Classification = Warning?
(S2 indicator lit (red) or
blinking (red)?)
Classification =
Fatal error? (S1 indicator
blinking (red)?)
Hardware failure/watchdog time error?
(Only S1 indicator light (red)?)
Turn OFF pin 2 of the Mode
Switch 1 (STOP) and turn
power OFF and ON.*
Online Stop Mode
Only S1 indicator lights (green)?
User program
error
Check the contents of
SW00050. Watchdog
timeout error?
YES
User program error
See 13.2.3 Processing Flow for a
Ladder Program Error and check
the location where the error oc-
curred.
* 1. See Indicator Details in 13.1.3 Indicator Errors for more details on indicator patterns.
* 2. With MP2100M, STOP is set by turning ON pin 6 of mode switch 1.
YES
Replace
battery
NO
Warning
YES
NO
Fatal error
YES
NO
NO
YES
2
NO
Hardware
failure
YES
NO
Check the contents of CPU error
status (SW00041).
(1)Operation error (SB000418)
(1)
See Ladder Program User Operation
Error Status in 13.2.4 System Regis-
ter Configuration .
(2)
(2)I/O error (SB000419)
See System I/O Error Status in 13.2.4
System Register Configuration .
13.2 System Errors
13
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