Daisy Chaining - BIG ASS FANS Basic^ Installation Manual

34

Daisy chaining

WARNING: Wait three minutes after disconnecting before servicing!
AVERTISSEMENT : Attendez trois minutes après avoir débranché avant d'utiliser le regulateur !
The following illustrations and parameter changes enable daisy chaining of the Basic6
linking the fan controllers together ensures minimal signal loss of command signals in larger multi-fan systems.
Assertion Level Switch (ALSW)
used as a supply voltage for user-supplied switches and accessories. For this 3-wire daisy chaining application, the downstream fan
controllers must be switched to Sinking (NPN) operation. Terminal 4 will then provide a DC common connection and allow the analog
signal and start stop signal to share that common. The Assertion Level Switch above terminal 4 must be switched from (+) to ( - )
on all downstream fan controllers for proper daisy chaining operation prior to powerup, parameter changes and operation.
Parameter Description
Relay Output Function
Change from "0" for None to "1" for Run.
TB-30 Output
output (scaled to drive output frequency).
TB-30 Scaling Frequency
Change to equal the frequency setting of P103
Maximum Frequency.
Speed at Max Signal
Change to equal the frequency setting of P103
Maximum Frequency.
until the fan's output frequency matches that of the lead fan.
#2 = Analog Common
1 1 2 5 6
U/T1 V/T2
Terminals 2 and 16 shall all be tied together
on the first fan controller.
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Electrical Installation (cont.)
#17 = N.O. Relay Output
#16 = N.O. Relay Output
#30 = 0 – 10VDC Output
2 5 6 25 4 11 25 4 11 13A 13B 13C 14 13A 13B 13C 14 30 16 17 30 16 17
PE
L1 L2 L3
W/T3
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™
12'–24' BASIC6
™
Parameter changes (for downstream controllers)
Parameter Description
Assertion Level
Change from "2" for High to "1" for Low.
Start Control Source
Change from "0" for keypad operation to "1" for
Terminal Strip.
Standard Reference Source
Change from "0" for keypad operation to "1" for
#4 = Digital Common*
–
#5 = 0 10VDC Input
#2 = Analog Common
#1 = Run/Stop Input
Terminals 2, 4 and 16 shall all be tied
together on all downstream fan controllers.
3 conductor shielded cable minimum 20AWG Stranded
(provided by installer) Recommended Maximum distance
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#17 = N.O. Relay Output
#16 = N.O. Relay Output
–
#30 = 0 10VDC Output
1 2 5 6 1 2 5 6 25 25 4 11 4 11 13A 13B 13C 14 13A 13B 13C 14 30 30 16 17 16 17
PE
U/T1 V/T2 W/T3 L1 L2 L3
0–10VDC and Start/Stop
out to next downstream
controller