4 Option Components
YASKAWA ELECTRIC TOBP C730600 60C V1000 Option SI-EN3/V Installation Manual 17
n Power-Up Diagnostics
An LED test is performed each time the drive is powered up. The initial boot sequence may
take several seconds. After the LEDs have completed the diagnostic LED sequence, the
option is successfully initialized. The LEDs then assume operational conditions as shown in
Tabl e 4.
Table 5 Power-Up Diagnostic LED Sequence
<1> Remove the cover for the option unit to check the status of the LED. Be careful not to touch the main circuit
terminals or the control board in the drive.
Sequence Module Status (MS) Network Status (NS) Time (ms)
1 Green OFF 250
2 Red OFF 250
3GreenOFF –
4 Green Green 250
5 Green Red 250
6GreenOFF –
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