Electrical Design
‑81‑
Wiring requirements for I/O signal cables
● I/O signals include analog input (AI) signals, analog output (AO) signals, digital
input (DI) signals, digital output (DO) signals, and relay output signals. Before
wiring the I/O terminals, disconnect the main power supply and ensure that the
danger indicator of the AC drive is off.
● Separate I/O signal cables from the main circuit cables (RST and UVW) and other
power cables (or electric power cables) by at least 30 cm. Failure to comply may
result in interference to I/O signals.
● Separate the cable connecting the relay output terminal from other I/O signal
cables by a distance greater than 30 cm. Failure to comply may result in
malfunction of the AC drive and equipment.
3.5 Communication Connection
3.5.1 CANopen Communication
3.5.1.1 Overview
MD580‑SI‑CAN1 is a new‑generation fieldbus adapter module of Inovance. It is used
together with the MD580 series AC drive to realize networking and remote control of
the transmission system through the CANopen fieldbus communication network.
Features:
● With the Node Guard protocol supported, the master can read equipment status.
● With the Heartbeat protocol, the slave reports its current status to the master
regularly.
● MD580‑SI‑CAN1 supports transmission of PDO data which is 16‑bit.
● The SDO can be transmitted only via acceleration transmission mechanism. At
most four channel's data can be transmitted per each frame.
● The CANIDs of all commands are default values of connections defined in
CANopen DS301.
● MD580‑SI‑CAN1 is installed in the expansion slot of the MD580 without the external
power supply.
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