CANopen & CANlink Communication
‑65‑
Table 4–23 Common problems and solutions
Problem Solution
Failure to write
frequency
1. Check F0‑03 to confirm that the address in the configuration
table is correct (when F0‑03 is 0, the address is the address of
F0‑08; when F0‑03 is 9, the address is 1000H or 7310H).
2. Check whether the terminal resistor is ON. If not, switch on the
terminal resistor and then power on the AC drive again.
Failure to start the AC
drive
1. Check that F0‑02 is set to 2 (0: Operating panel; 1: Terminal; 2:
Communication).
2. Check whether the terminal resistor is ON. If not, switch on the
terminal resistor and then power on the AC drive again.
Unstable connection
1. Check that wiring on the PLC end is reliable. (Touch the
connection cables on the PLC end to check for poor contact.)
2. Check that wiring on the AC drive end is reliable, and make
sure that network cables are inserted tightly.
3. Check that the signal cables are far away from the power
cable.
Incorrect read value
1. Check that the configuration address is correct.
2. Check whether the program performs data conversion.
3. Make sure that the D component is not occupied.
4.5.2 Configuration of CANopen Communication Between AC Drive and
H5U
Software Acquisition and Hardware Connection
1. Log in to the official website of Inovance (https://newweb.inovance.com/hc/
serviceSupport/download) to obtain the H5U programming software and the latest
EDS file.
2. Connect the H5U to the CN1 interface of the MD38CAN1 expansion card installed on
the MD520 using twisted pair cables.
Figure 4‑6 Connecting communication interfaces
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