PROFINET Communication
‑99‑
Symptom
Solution
After the AC drive is
powered on, only the
power indicator (D4) is on,
indicating that the
connection between the
PN card and AC drive is
not established.
1. Check that F0‑28 is set to 1.
2. Check the AC drive type. This user guide only describes the
usage of MD520. For other AC drive models, contact the
technical engineers to obtain the correct user guide.
3. Check whether the AC drive software version supports
MD500‑PN1.
After the AC drive is
powered on, the power
indicator (D5) is on and
the communication
indicator (D4) is steady
yellow.
Replace the MD500‑PN1 card.
The
connec
tion fails
after the
configu
ration is
down
loaded.
After the
configuration is
downloaded,
D5 and D4 on
the MD500‑PN1
card are steady
green, and D1
blinks green.
1. Check that the cable is properly connected.
2. Check that the upstream PN node works properly.
3. Check whether the node is assigned with a device name
through the PLC.
4. Check that the GSDML file used in the configuration is
correct.
After the
configuration is
downloaded,
D5 and D4 on
the MD500‑PN1
card are steady
on, and D1
blinks yellow.
1. Check that the GSD file used is correct.
2. Check that the PZD mapping is set correctly. Device‑
specific parameters in STEP 7 and PORTAL must be set in
decimal format. Therefore, you need to convert the
parameter numbers into decimal values when setting device‑
specific parameters. For example, the decimal value of FC‑11
is 64523 (0xFC0B in hexadecimal format). If a parameter
number that the AC drive does not support is entered, the
connection fails. Note that PZD mapping does not support
Modbus addresses such as H2000 and H8000.
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