YASKAWA MP2100 Series User Manual

6.2 Startup Sequence and Basic Operation
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6.2.3 Indicator Patterns
The MP2100/MP2100M makes a number of determinations at startup. If an error is detected, the S1 indicator
will blink red and the error content will be indicated by the number of times the indicator blinks. When the indi-
cator is blinking, the MPE720 cannot be operated. For details on the error content and the action to be taken, see
Chapter 12 Maintenance and Inspection and Chapter 13 Troubleshooting. The following table shows the
MP2100/MP2100M indicators.
Type
Indicator
Meaning Remarks
S1
(Green)
S2
(Green)
S2
(Red)
S1
(Red)
BAT
Normal
Not lit Not lit Lit Lit Not lit
Hardware reset status If this status continues for
10 s or longer after turning
ON the power, the hard-
ware is faulty.
Not lit Not lit Not lit Not lit Not lit
Initial execution
Not lit Lit Not lit Not lit Not lit
Execute of drawing A
Lit Not lit Not lit Not lit Not lit
The user program is stopped
(offline stop mode).
This status is entered when
STOP operation is per-
formed from a switch or the
MPE720.
Lit Lit Not lit Not lit Not lit
The user program is executing nor-
mally.
Error
Not lit Not lit Not lit Lit Not lit
A serious error has occurred. The S1 indicator lights
(Red) when there is a fail-
ure in the CPU.
Not lit Not lit Not lit Blink-
ing
Not lit
Number of blinks 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
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
The S1 indicator blinks
(Red) when there is an
error.
Not lit Not lit Blink-
ing
Blink-
ing
Not lit
Number of blinks when hardware
error occurs:
2: RAM diagnosis error
3: ROM diagnosis error
4: CPU function diagnosis error
5: FPU function diagnosis error
The S1 and S2 indicators
blink (Red) when there is a
self-diagnosis failure.
Alarm
－－－－
Lit
Battery alarm The BAT indicator lights
when the battery voltage
drops.
Lit Not lit Lit Not lit Not lit
Calculation error
I/O error
The S2 indicator lights
(Red) when a calculation or
I/O error is detected.

YASKAWA MP2100 Series Specifications

General

Brand	YASKAWA
Model	MP2100 Series
Category	Controller
Language	English