USE WITH A BUILDING MANAGEMENT SYSTEM
The ABB ACS320 drive can be connected to an
external control system via embedded fi eldbus.
The embedded fi eldbus supports Modbus RTU,
®
®
BACnet
, Metasys
N2 and APOGEE
Protocols. See the ABB ACS320 Drives User's
Manual for details on connecting to an external
control system.
The ABB ACS355+N831 drive can also be connected
to an external control system via embedded fi eldbus
and ABB FMBA-01 Modbus Adapter. The embedded
fieldbus supports Modbus RTU and BACnet
protocols. The FMBA-01 Modbus Adapter is used for
RS485 communications. See the ABB ACS355 User
Manual Supplement - BACnet
®
(+N831) for details
on connecting to an external control system.
Set drive parameter 9802, Communication Protocol
Selection, to the desired protocol (e.g. 5=BACnet).
If you cannot see the desired selection on the keypad
panel for parameter 9802, your drive does not have
that protocol software in the application memory.
BACnet® is a Data Communication Protocol
for Building Automation and Control Networks.
Developed under the auspices of the American
TO ACCESS POWER AND CONTROL WIRES UNDERNEATH FMBA-01 MODULE
The ACS355+N831 VFD will typically be provided with ABB FMBA-01 Modbus Adapter Module installed on the VFD. This module will need to be
removed if access is required to the power and control wire terminals below it.
To Remove the ABB
FMBA-01 Modbus Adapter:
1. Pull out the plug lock. (A)
2. Disengage the chassis
ground screw threads from
the grounding plate below
the module. (B)
3. Pull the FMBA-01 Modbus
Adapter module off the
VFD plug receptical and do
required wiring (if any under
the module.)
ABB VARIABLE FREQUENCY DRIVES
Society of Heating, Refrigerating and Air-Conditioning
Engineers (ASHRAE), BACnet is an American national
standard, a European standard, a national standard
in more than 30 countries, and an ISO global
®
FLN
standard. The protocol is supported and maintained
by ASHRAE Standing Standard Project Committee 135.
The inclusion of the BACnet protocol allows the
ACS355+N831 and ACS320 VFDs to communicate
with a Building Automation and Control system
®
using BACnet
®
EMBEDDED FIELDBUS (EFB) COMMUNICATIONS PORT
F8
FMBA-01 Module Removal / Installation Instructions
A
B
.
ACS355+N831
C
D
1.800.627.4499
ABB VFD SUPPLEMENTAL MANUAL
INSTALLATION
INSTALLATION INSTRUCTION
ACS320
To re-install the ABB FmBA-01
Modbus Adapter:
1. Push the FMBA-01 Modbus
Adapter module back on the
plug receptical with the plug
lock tab pulled out.
2. Push in the plug lock. (C)
3. Fasten the chassis ground
screw. (D)
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