
Hardware reference
HARDWARE REFERENCE MANUAL
99
Revi
si
on 3.0
LED indicators
fig. 48
The LED indicators indicate the status of the communications of the
MECHATROLINK-II and the SI-T/V7 Unit.
A. Run
B. TX
C. RX
D. ERR
/i
D
B
A
C
Name
Display
Explanation
Color
Status
RUN
Green
Lit
Normal operation
-
Not lit
Communications CPU stopped, resetting hard-
ware, 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 hardware
Red
Flashing
ROM check error (once)*, RAM check error
(twice)*, DPRAM check error (3 times)*, com-
munications ASIC self-diagnosis error (4
times)*, ASIC RAM check error (5 times)*, sta-
tion address setting error (6 times)*, Inverter
model code error (7 times)*
*: indicates the number of flashes
-
Not lit
No communication error or self-diagnosis error
TX
Green
Lit
Sending data
-
Not lit
Sending of data stopped, hardware reset
RX
Green
Lit
Searching for receiving carrier
-
Not lit
No receiving carrier found, hardware reset
I51E-EN-03.book Seite 99 Donnerstag, 28. Juni 2007 1:05 13