Preparation for installation 19
Drive specific requirements
To connect ACS800 drives:
1. DDCS communication option module (RDCO-01C/-04C) installed in slot 3 of
RDCU-xx/RMIO-xx control unit
Note: RDCO-03C and old models of RDCO-02C (for example, Rev. A and B of
RDCO-02C) are not recommended due to limited capacity of the optical fiber
connectors on CH3.
2. Optical fiber for connections between NEXA-21 and the drive (RDCO-01C option)
3. NDBU-95C Branching unit for multi drive setups
Note: Use CH3 channel for connecting NETA-21 to the drive.
To connect ACS880/DCS880 drives:
1. Fieldbus adapter module to connect ACS880 to NETA-21 via an Ethernet cable. For
supported fieldbus modules, see section Supported fieldbus adapter modules on page
20.
Notes:
• The adapters are not required if you connect through a panel port
• Remove the panel from the drive if you monitor through the Panel bus.
2. Ethernet switch, if more than one ACS880 is connected via an Ethernet port
3. Sufficient Ethernet cables to connect drive to NETA-21
Note: ABB cybersecurity guidelines recommend that Internet connectivity should use
a separate Ethernet interface to the cellular modem or customer network. It is
recommended to use:
• ETH1 connection for local connectivity to the drives.
• Fixed IP address on ETH1 and no gateway access
• ETH2 connection for connectivity to the Internet.
ETH1 port has full 100Mbit/s capacity and is used to communicate efficiently in real
time with ACSx80 drives using Ethernet cable. The ETH2 port Internet connectivity
uses only limited bandwidth (typically less than 1 Mbit/s effective speed) to send
compressed data to cloud every 1.5 minutes.
4. Optional materials:
• FDPI-02 panel bus extension adapter, if you are using panel bus adapter and
connecting more than one control unit
• FEA-03 extension board (requires FDCO-02 optical fiber extension) if you want to
install IO and encoder options away from the main control unit. This allows to
connect two parallel fieldbus modules. For example, one FENA-21 for PC tool and
another FENA-21 for NETA-21 connection.
To connect MV Drives ACS1000, ACS2000, ACS5000 and ACS 6000
1. Optical fiber for connections between NEXA-21 and the drive
2. NDBU-95C Branching unit for multi drive setups.
Note: Use CH3 channel for connecting NETA-21 to the drive.
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