Warning, Grounding (earthing) – Bell & Gossett 176R0649C Technologic 502 Series Pump Controller User Manual
Page 17
17
Grounding (Earthing)
WARNING
!
g
rounding
H
azard
!
f
or
opErator
safEty
,
it
is
important
to
ground
drivE
and
option
panEl
propErly
. f
ailurE
to
ground
drivE
and
option
panEl
propErly
could
rEsult
in
dEatH
or
sErious
injury
.
n
otE
i
t
is
tHE
rEsponsibility
of
tHE
usEr
or
cErtifiEd
ElEctrical
installEr
to
EnsurE
corrEct
grounding
(
EartHing
)
of
tHE
EquipmEnt
in
accordancE
witH
national
and
local
ElEctrical
codEs
and
standards
.
• Follow all local and national codes for proper
electrical equipment grounding (earthing).
• Proper protective grounding of the
equipment must be established. Ground
currents are higher than 3 mA.
• A dedicated ground wire is required.
• Connect the ground wire directly to a reliable
earth ground. Grounding studs are provided
on the back plate of the option panel for
grounding.
• Do not use conduit connected to the option
panel as a replacement for a ground wire.
• Do not ground one panel to another in a
“daisy chain” fashion. Each panel must have
a dedicated ground connection.
• A high strand count ground wire is preferred
for dissipating high frequency electrical
noise.
• Keep the ground wire connections as short
as possible.
notE
s
EE
f
igurEs
3-12
and
3-13
for
powEr
,
motor
and
control
wiring
diagrams
.