8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
75
WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
CE Compliant Grounding for Powerflex 4M Controller
Esc
Se
l
Earth / Building Groun
d Potential
Service Saf
ety
G
ro
und
Dedicated Motor Ground
G
re
en
/
Y
el
lo
w
EMI Filter Output Ground
B
ro
w
n
B
la
ck
B
lu
e
M
ot
or
C
on
du
it
B
ox
M
ot
or
H
ub
A
ss
em
bl
y
P
E
** Grounding scheme for CE compliant installations.
EMI / RFI Filter is required.
A gland connector is required at all cable entry/exit
points. Grounding must
follow these recommendations to satisfy CE requir
ements.
Fan Controller
Enclosure
EMI / RFI
Filter
Shielded Cable With or Without
Drain Lead
Input
Transformer
Secondary
Connection to Ground Grid,
Girder
, or
Ground Rod
Building Steel
(if present)
Building Steel
(if present)
Connection to Ground Grid, or Building Steel via Fan Mounting
Structure
Shielded Cable With or Without
Drain Lead
Fan Controller Ground Bus
The Drain Lead,
if used, must land on one of the VFD’
s PE
terminals.
Typical Gland Connector /
Grounding Connector
Foil
(if applicable)
Steel Enclosure
W
all
Shield / Braid
PVC Exterior
Jacket