Inovance MD520 Series - Topology and Transmission Distance

PROFIBUS DP Communication
‑147‑
Category
Symbol
Terminal Name Function
Indicator
Note
D4 (red)
Power indicator
● Steady ON: The AC drive is powered on.
● OFF: The AC drive is disconnected from
the power supply or the PROFIBUS DP
card is installed incorrectly.
D3 (yellow)
Indicator of
communication
between the
PROFIBUS DP
card and the
master
● Steady ON: Communication between the
PROFIBUS DP card and the PROFIBUS
master is normal.
● OFF: There is no communication
between the PROFIBUS DP card and the
PROFIBUS master (check the connection
of PROFIBUS cables and the setting of
the station number).
● Blinking: The master is not running or a
fault occurs in communication between
the PROFIBUS DP card and the master.
D2 (green)
Indicator of
communication
between the
PROFIBUS DP
card and the AC
drive
● Steady ON: Communication between the
PROFIBUS DP card and the AC drive is
normal.
● OFF: Communication between the
PROFIBUS DP card and the AC drive fails.
(F0‑28 is not set to 1 or the AC drive does
not support the MD38DP2 expansion
card.)
● Blinking: Interference exists in
communication between the PROFIBUS
DP card and the AC drive or the
expansion card address is beyond the
range of 1 to 125.
Note
Note: For some products, the indicator color and the terminal symbol may not match. In
this case, the terminal symbol prevails. The indicators are D2, D3, and D4 from left to right.
See "
Figure 7–3 " on page 144 .
7.4 Topology and Transmission Distance
The following figure shows the connection between the PROFIBUS DP card and
PROFIBUS master.