Warning – Bell & Gossett 176R0649C Technologic 502 Series Pump Controller User Manual
Page 2
WARNING
!
E
quipmEnt
H
azard
!
d
rivEs
and
panEls
contain
dangErous
voltagEs
wHEn
connEctEd
to
linE
voltagE
. i
t
is
strongly
rEcommEndEd
tHat
all
ElEctrical
work
conform
to
tHE
n
ational
E
lEctrical
c
odE
(nEc)
and
all
national
and
local
rEgulations
. i
nstallation
,
start
-
up
and
maintEnancE
sHould
bE
pErformEd
only
by
qualifiEd
pErsonnEl
. f
ailurE
to
follow
tHE
nEc
or
local
rEgulations
could
rEsult
in
dEatH
or
sErious
injury
.
Motor control equipment and electronic controls
are connected to hazardous line voltages. Extreme
care should be taken to protect against shock. The
user must be protected against supply voltage
and the motor must be protected against overload
in accordance with applicable national and local
regulations. Be sure equipment is properly grounded.
Wear safety glasses whenever working on electric
control or rotating equipment.
Safety Guidelines
1. The drive and option panel must be
disconnected from the AC line before any
service work is done.
2. DO NOT touch electrical parts of the
option panel or drive when the AC line is
connected. After the AC line is disconnected,
wait 30 minutes before touching any
electrical components.
3. The user must be protected against supply
voltage and the motor must be protected
against overload in accordance with
applicable national and local regulations.
4. While programming parameters, the motor
may start without warning. Activate the
STOP/OFF key on the control keypad when
changing parameters.
5. The STOP/OFF key on the local control
panel keypad of the drive does not isolate
the drive from the AC line voltage and is not
to be used as a safety switch.
WARNING
!
u
nintEndEd
s
tart
!
w
HEn
drivE
or
option
panEl
is
connEctEd
to
ac
input
powEr
,
motor
may
start
at
any
timE
. t
HE
drivE
,
option
panEl
,
motor
,
and
any
drivEn
EquipmEnt
must
bE
in
opErational
rEadinEss
. f
ailurE
to
bE
in
opErational
rEadinEss
wHEn
panEl
and
drivE
arE
connEctEd
to
ac
input
powEr
could
rEsult
in
dEatH
,
sErious
injury
,
or
EquipmEnt
or
propErty
damagE
.
Warning Against Unintended Start
When the drive or option panel is connected to the AC
line, the motor may be started by means of an external
switch, a serial bus command, an input reference
signal, or a cleared fault condition. Use appropriate
cautions to guard against an unintended start.
WARNING
!
g
rounding
H
azard
!
f
or
opErator
safEty
,
it
is
important
to
ground
drivE
,
option
panEl
,
and
motor
propErly
. f
ollow
tHE
grounding
guidElinEs
of
local
and
national
codEs
. f
ailurE
to
follow
grounding
guidElinEs
could
rEsult
in
dEatH
or
sErious
injury
.
Grounding
Proper protective grounding of the equipment must
be established in accordance with national and local
codes. Ground currents are higher than 3 mA. Use
high stranded wire whenever possible.
2