User`s manual

12
3.3 LED Indicators
The LED indicators indicate the status of the communications of the MECHATROLINK-I
or MECHATROLINK-II and the SI-T/V7 Unit.
However, these indicates are for maintenance checks at Yaskawa. Use the Digital Operator
to check the status.
Name Display Explanation
Color Status
RUN Green Lit
Normal operation
− Not lit
Communications CPU stopped, resetting hardware, RAM check
error, DPRAM check error, station address setting error, or
Inverter model code error
ERR Red Lit
Watchdog timeout error, communications error, or resetting hard-
ware
Red Blinking
ROM check error (once)*, RAM check error (twice)*, DPRAM
check error (3 times)*, communications ASIC self-diagnosis error
(4 times) *, ASIC RAM check error (5 times)*, station address set-
ting error (6 times) *, Inverter model code error (7 times) *
*: Indicates the number of blinking.
− Not lit
No communications error or self-diagnosis error
TX Green Lit
Sending data
− Not lit
Sending of dara stopped, hardware reset
RX Green Lit
Searching for receiving carrier
− Not lit
No receiving carrier found, resetting hardware
RUN TX RX
ERR