BIG ASS FANS BAFWorks 3.0, Installation Manual

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BAFWORKS
®
INSTALLATION GUIDE
35
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BAFWORKS
®
INSTALLATION GUIDE
Electrical Installation: Fans (cont.)
Connecting more than 32 fans (daisy chaining)
The BAFWorks
®
application and gateway are capable of communicating with only 32 unique serial addresses; however, it is possible
to connect more than 32 fans on a single gateway installation utilizing each fan controller’s 0–10VDC daisy chaining setup
as illustrated below. Each fan controller contains a single 0–10 VDC analog input for speed reference, as well as a 0–10 VDC analog
output; therefore, there is no signal loss from fan to fan, as each fan controller acts as a 0–10 VDC repeater.
In this arrangement, a “fan” on the BAFWorks application represents a group of fans, which are connected by the 0–10 VDC analog
loop. All fans on the 0–10 VDC loop will behave identically. This is known as a master/slave setup or daisy chain, with the master being
the first fan in the chain on the Modbus loop. You will reach a practical fan quantity limit based on square footage of your facility and/or
for safety reasons before you find a physical hardware limitation. For 0–10 VDC analog signals, an 18–20 AWG, two-conductor shielded
cable is recommended for distances up to 100 ft (30.5 m). See the fan's Installation Guide for connection details.
Powerfoil X Series
Serial Address #1
iPad
®
/Gateway/
Router Location
Modbus cable
Powerfoil X Series
Serial Address #2
Powerfoil X Series
Serial Address #3
Powerfoil X Series
Serial Address #4
Max 32
Modbus cable Modbus cable
0–10VDC
0–10VDC
0–10VDC
0–10VDC
0–10VDC
0–10VDC 0–10VDC
0–10VDC 0–10VDC
0–10VDC 0–10VDC 0–10VDC
Receiving Docks Shipping Docks Aisle Way #1 Aisle Way #2
Daisy chain-capable fans and controllers
• Powerfoil
®
X Series fans with Delta E Series VFDs or Delta M Series VFDs
• Powerfoil
®
8, Basic 6
®
, Pivot
™
, and Pivot
™
180 fans with Lenze SMVector VFDs
• Powerfoil
®
and Wickerbill fans with Allen-Bradley
®
PowerFlex
®
40 VFDs
• Any other fan system using VFDs that include both an analog input and analog output