ABB NETA-21 Installation manual

—

REMOTE MONITORING OPTIONS FOR ABB DRIVES, CONVERTERS AND INVERTERS

NETA-21 remote monitoring tool

Installation and start-up guide

NETA-21 remote monitoring tool 3

NETA-21 remote monitoring tool

About this guide

This guide contains the very basic information about the mechanical and electrical

installation and start-up of the NETA-21 remote monitoring tool.

Safety instructions

If you need to connect the remote monitoring tool to a control board inside the

drive/converter/inverter, follow the Safety instructions below.

WARNING! Ignoring the following instructions can cause physical injury or

death, or damage to the equipment.

• Only qualified electricians are allowed to install and maintain the drive, converter

and/or inverter!

• Disconnect the drive, converter or inverter to which the option module will be

installed or connected from all possible power sources. After disconnecting,

always wait for 5 minutes to let the intermediate circuit capacitors discharge

before you proceed.

• Switch off all dangerous voltages connected to any control signal connectors in

reach. For example, 230 V AC may be connected from outside to a relay output of

the drive, inverter or converter.

• Always ensure by measuring with a multimeter (impedance at least 1 Mohm) that

there are no parts under voltage in reach.

4 NETA-21 remote monitoring tool

Layout

The following figures describe the front and bottom layout of the NETA-21 remote

monitoring tool and the NEXA-21 extension module.

1 Front panel labeled with a black sticker and equipped with indicator LEDs

2 PWR, STAT, MON – power, status and monitoring indicators, see Diagnostic LEDs

3 SD – SD/SDHC memory card slot

4 USB – USB host port for third party extensions

5 PNL 1/PNL 2 – RJ45 type connector providing an EIA-485 level interface for a panel bus

6a PC ETH 1 – RJ45 type connector providing a 10BASE-T / 100BASE-TX Ethernet

connection for a PC in the public network

6b ETH 2 – RJ45 type connector providing a 10BASE-T / 100BASE-TX Ethernet connection

for a drive, converter or inverter

7 36-pin connector for the NEXA-21

8 SD RJ45 – SD button is used for removing the SD/SDHC card safely and activating a

DHCP server for the first access to the user interface

9 Reset button is used for rebooting the remote monitoring tool

10 NEXA-21 provides a DDCS fiber optics connection, secondary power input and one extra

USB port

11 PWR, STAT, RX, TX – power, status and RX/TX indicators, see Diagnostic LEDs

12 Fiber optic transmitter DDCS

13 Fiber optic receiver DDCS

NETA-21 remote monitoring tool 5

1 X1 10…30 V DC – power supply input

2 X2 EIA-232 port

• 9-pin D-sub male type connector X2

• EIA-232 level interface for a modem

3 X3 EIA-485 port

• 4-pin detachable screw type connector X3

• EIA-485 level interface for a Modbus network

4 Termination jumpers for the link connected to X3

5 X11 AC/DC 24V – secondary power supply input

6 NETA-21 remote monitoring tool

Mechanical installation

Installing NEXA-21 to NETA-21

1. Press the NEXA-21 against the NETA-21.

2. Tighten the grounding screw (A).

Do not use excessive force.

Mounting instructions

1. Protect the devices from the drilling dust.

2. Drill the holes for the fastening screws of the mounting rail.

3. Fasten the mounting rail (B).

4. Snap the remote monitoring tool onto the rail (C).

DIN rail mounting clip

NETA-21 remote monitoring tool 7

Electrical installation

Grounding

The ground of the remote monitoring tool is connected to the mounting rail by means

of an grounding clip. The mounting rail onto which the remote monitoring tool is to be

mounted must be grounded to a noiseless ground. If the rail is not mounted on a

properly grounded base, a separate grounding conductor must be used. The

conductor must be as short as possible and its cross-sectional area must be 6 mm2at

least.

Note: No solid copper conductor may be used (stranded wire allowed only).

Power connections

Connect the power supply to connector X1 of the NETA-21 module. The NETA-21

supplies also the NEXA-21. For information on the connector type, voltage and power

specification, see Connectors.

Note: In the NEXA-21, there is an alternative power supply input (X11), which you

can use for supplying power to the NEXA-21 and the NETA-21.

Connections with drives, converters and inverters

The remote monitoring tool is compatible with various ABB drives, converters and

inverters.

As shown on page 8, the NETA-21 can be connected directly to a panel bus if the

drive (/inverter/converter) has an Assistant control (ACS-AP-x) panel.

If the unit to be monitored does not have the ACS-AP-x panel but it is equipped with

an RDCU control unit, you can connect the unit to the NETA-21 through the fiber optic

channel of the NEXA-21. See the connections diagrams in section Data link

connections – Drive (/converter/inverter) with the RDCU control unit.

8 NETA-21 remote monitoring tool

Data link connections –

Drive (/converter/inverter) with the ACS-AP-x panel

The maximum number of devices per panel port bus is 10.

Set a unique ID to each node on the panel bus. See the appropriate

drive/converter/inverter manual.

Termination switch

of the bus

ABB drive,

converter or

inverter

NETA-21

ETH1

ETH2

Link to Ethernet networks

PNL1

PNL2

Note: The RJ45 connectors of the control panel are located in the “ceiling” of the control panel

housing. Beside the left-hand side RJ45 connector in the control panel housing there is a switch

that must be pushed upwards in the last drive of the chain to terminate the bus.

Termination switch

of the bus

ABB drive,

converter or

inverter

ABB drive,

converter or

inverter

ABB drive,

converter or

inverter

NETA-21 remote monitoring tool 9

Data link connections –

Drive (/converter/inverter) with the RDCU control unit

The figure below shows the data connections in a ring topology when a fiber optic link

is used.

Connect the NETA-21 primarily to fiber optic channel ch3 on the RDCO connector

unit. You can connect the NETA-21 also to ch0 if the maximum speed of the DDCS

communication does not increase above 1 Mbit/s.

The default the NETA-21 settings for a DDCS network are ring topology and 1 Mbit/s

communication speed. With these settings, the NETA-21 can normally auto-detect

drives (/converters/inverters) connected to an NDBU branching unit. The NETA-21

auto-detects connected devices when the fiber is connected for the first time. If

reconfiguration is needed afterwards, it can be done in the web user interface.

If the DDCS communication speed is higher than 1 Mbit/s, the NETA-21 settings and

device interfaces must have the same speed settings as the NDBU unit.

RDCO

RDCU

RDCO

RDCU

RDCO

RDCU

T T

R RTR

Drive/converter/inverter 1 first in the ring,

drive/converter/inverter 10 last in the ring

NETA-21

NEXA-21

ETH1

ETH2

ABB drive,

converter or

inverter

Link to Ethernet networks

ABB drive,

converter or

inverter

ABB drive,

converter or

inverter

10 NETA-21 remote monitoring tool

The figure below shows the data connections in a star topology when a fiber optic link

is used.

MSTR

CH0

CH1

NDBU-x5

ABB drive,

converter or

inverter

Drive/converter/inverter 1 to CH0 … drive/converter/inverter 9 to CH8

NEXA-21

ETH1

ETH2

NETA-21

Link to Ethernet networks

RDCO

RDCU

ABB drive,

converter or

inverter

RDCO

V101

V102

V103

V104

V105

V106

RDCU

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