MD‑SI‑DP1 Communication
‑187‑
Category
Symbol
Terminal Name Function
Indica
tor※
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
MD‑SI‑DP1
expansion card
and the master
● Steady ON: Communication between the
MD‑SI‑DP1 card and the PROFIBUS master
is normal.
● OFF: There is no communication between
the MD‑SI‑DP1 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 MD‑SI‑DP1 expansion card and the
master.
D2 (green)
Indicator of
communication
between the
MD‑SI‑DP1
expansion card
and the AC
drive
● Steady ON: Communication between the
MD‑SI‑DP1 expansion card and the AC
drive is normal.
● OFF: Communication between the MD‑SI‑
DP1 card and the AC drive fails. (F0‑28 is
not set to 1 or the AC drive does not
support the MD‑SI‑DP1 expansion card.)
● Blinking: Interference exists in
communication between the MD‑SI‑DP1
expansion card and the AC drive or the
expansion card address is beyond the
range of 1 to 125.
8.4 Topology and Transmission Distance
The following figure shows the connection between the PROFIBUS DP card and
PROFIBUS master.
Figure 8‑5 Connection between the PROFIBUS DP card and PROFIBUS master
Terminal resistors must be connected at both ends of the PROFIBUS bus and DIP
switches must be set correctly according to the marks on the wiring terminals. After
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