YASKAWA MP210 Series User Manual page 235

(2) Indicator Details
The following describes details and remedies for indicators showing operating status and errors in the MP2100/
MP2100M.
Indicator
Type
S1 S2
(Red)
(Green) (Green)
Not lit Not lit Lit
Not lit Not lit Not lit
Not lit Lit Not lit
Normal
Lit Not lit Not lit
Lit Lit Not lit
Not lit Not lit Lit
Not lit Not lit Flashing
Error
Not lit Not lit Flashing Flashing Not lit
∗ ∗
– –
Alarm
Lit Not lit Not lit
Lit Not lit Not lit
* A dash (–) means not specified.
S1 S2
BAT
(Red)
Lit Not lit
Hardware reset status
Not lit Not lit
Initial execution
Not lit Not lit
Execute of drawing A
The user program is stopped
Not lit Not lit
(offline stop mode).
The user program is executing
Not lit Not lit
normally.
Not lit Not lit
A serious error has occurred.
Number of flashes when software
error occurs:
3: Address read error
4: Address write error
5: FPU error
6: General illegal command error
7: Slot illegal command error
Not lit Not lit 8: General FPU suppression error
9: Slot FPU suppression error
10: TLB multi-bit error
11: LTB read error
12: LTB write error
13: LTB protection violation (read)
14: LTB protection violation (write)
15: First page write error
Number of flashes when hardware
error occurs:
2: RAM diagnosis error
3: ROM diagnosis error
4: CPU function diagnosis error
5: FPU function diagnosis error
∗ ∗
Battery alarm
– – Lit
Lit Not lit
Operation error
Lit Not lit
I/O error
Indicator Details
Normally the CPU activates within
10 seconds from power ON. If this
status continues for longer than this,
the problem is a user program error
or hardware failure.
Troubleshoot system errors.
This status will occur for either of the
following.
• The program was stopped from the
• The RUN switch was turned OFF.
This status will occur during normal
operation.
Refer to 6.4.3 Troubleshooting when
S1 Indicator Is Lit in Red.
A hardware error has occurred.
Replace the Module.
Replace the battery.
For details, refer to 6.2.3 Battery
Replacement.
Refer to 6.4.5 (3) Ladder Program
User Operation Error Status.
Refer to 6.4.5 (5) Alarm Counter and
Alarm Clear.
6.3 Troubleshooting
Remedy
MPE720.
6
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