Yaskawa MP930 - Manual (Page 64)

3.2 Start and Stop Sequences
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3.2.2 Start Sequence
The MP930 makes a number of determinations at startup. If an error is detected, the ERR indi-
cator will flash and the error content will be indicated by the number of times the indicator
flashes. When the indicator is flashing, the CP-717 cannot be operated. For details on the error
content and the action to be taken, see Chapter 9 Troubleshooting. Table 3.2 shows the MP930
indicators.
Table 3.2 Indicators and Indicator Patterns
Type Indicator Meaning
RDY RUN ALM ERR BAT
ALM
Normal Lit Unlit Unlit Unlit Unlit The user program is stopped.
Lit Lit Unlit Unlit Unlit The user program is executing normally.
Error Lit Lit Lit Lit Unlit Hardware reset status (while display is contin-
uing)
Unlit Unlit Unlit Unlit Unlit During initial execution (while display is con-
tinuing)
Unlit − Unlit Lit Unlit A serious error has occurred.
Unlit Unlit Unlit Flash-
ing Unlit 1. Flashing once or twice: RAM error
2. Flashing two or three times: ROM error
3. Flashing three or four times: Peripheral
LSI error
Alarm − − − − Lit Battery alarm
Lit Lit Lit Unlit Unlit 1. Calculation error
2. I/O error
Reported to the system (S) register (no in-
dicator display) Hardware status (power loss, RUN/STOP, test
mode, etc.)
Other Flash-
ing Flash-
ing Unlit Unlit Unlit Memory initialization has been completed for
the DIP switch settings.
RDY and RUN flash repeatedly at the
same time.
Unlit Unlit Lit Unlit Unlit Offline test mode
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