Chapter 4 cu status indication by led indicators, Chapter 4, Cu status indication by led indicators – Denso CU-7011 User Manual
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Chapter 4 CU Status Indication by
LED Indicators
According to the ON/OFF states of the POWER and DATA LED indicators, you may
check the machine status of the CU-7011 as listed below.
POWER
DATA
Machine status
OFF
OFF
Power off
ON
OFF
Power on
ON
ON
Communicating with the host
Flashing slowly*
1
ON
Updating the CU system program
Flashing slowly
Flashing*
2
Waiting for retry after occurrence of a
CU system program updating error
Flashing slowly
Flashing slowly
System program failure
Solution: Contact your nearest dealer.
Flashing quickly*
3
Flashing quickly
System program error
Solution: Restart the CU-7011. If this
error occurs frequently, contact your
nearest dealer.
*
1
At one-second intervals
*
2
At 100-ms intervals
*
3
At 50-ms intervals