ABB TB807 module bus terminal
The work inside the drive should be carried out by a qualified
electrician only.
WARNING! Pay attention to the slowly discharging voltage of the
capacitor bank and the voltages that are connected from external
control circuits to the inputs and outputs of the drive.
WARNING! Do not touch the printed circuit boards. The integrated
circuits are extremely sensitive to electrostatic discharge.
Mounting instructions:
1. Stop the drive.
2. Switch off the power supply of the drive and all dangerous voltages
connected to the inputs and outputs.
3. Wait for five minutes to ensure that the capacitors in the
intermediate circuit have discharged.
4. Remove the front cover of the drive.
5. Ensure that the mains cable, motor cable and capacitor bank
(UDC+ and UDC–) are not powered.
6. Locate the position for the module (see the ACS 600 Hardware
Manual). Fasten the mounting rail to its place if not already
installed. Observe the free space requirements for the module
(min. 10 mm from adjoining equipment/wall).
7. Push the module onto the rail. The module can be released by
pulling the locking spring with a screwdriver (see Figure 3-2).

The modules are connected to the drive (NAMC/NDCO board) using
the fibre optic cables included in the module package. Observe the
connector colour coding: blue connectors should go to blue receivers
(RXD), grey (or black) connectors to grey transmitters (TXD). Multiple
modules on the same channel are connected in a ring.
The fibre optic cables must be handled with care. The maximum long term tensile load is 1 N and the minimum short-term bend radius is
25 mm. The ends of the fibre must not be touched as optical fibres are
sensitive to dirt. Grommets should be used at cable lead-throughs.
Terminals The terminals which the NTAC-02, NDIO-02 and NAIO-03 modules are
connected to are given in the table below.
Figure 3-3 Connecting the modules to the ACS 600. The picture shows
two modules on Channel CH1; the terminals may vary according to the
application program used. Refer to the table above and the relevant
Firmware Manual.
Module Application Program Board Channel Terminals
NTAC-02
Standard, V5.0 or later NDCO (Optional) CH2 V17, V18
Standard, V5.0 or later
with Master/Follower Macro NAMC CH1 V15, V16
System NAMC CH1 V15, V16
Crane, V5.0 or later NAMC CH1 V15, V16
NDIO-02
NAIO-03 (all) NAMC CH1 V15, V16