Miller ps-100 Owner's Manual - Page 13

Browse online or download pdf Owner's Manual for Welding Accessories Miller ps-100. Miller ps-100 26 pages. Arc welding power source

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WARNING: ELECTRIC SHOCK
can
kill.
Do not touch IWe elect rica!
parts.
Shut
down unit and disconnect
input
power
employing lockout/tagging procedures
before
making welding
cable connections.
Lockout/tagging
procedures
consist
of
padlocking
line
disconnect switch
in
open
posi
tion,
removing
fuses from fuse
box,
or
shutting
off and
red-tagging
circuit breaker
or
other dis
connecting
device.
1.
Connect end of spray
gun
cable
to
POSITIVE
(+)
weld
output
terminal.
2.
Connect
one
end of work cable to
NEGATIVE
()
weld
output
terminal
and
remaining
end
to
workpiece.
IMPORTANT: For Electrode
Negat We/Straight Polarity
connections,
reverse
cable
connections
to
weld
output
terminals;
electrode becomes
negative.
3-3.
CONTROL MODULE RECEPTACLE INFOR
MAT1ON AND
CONNECTiON
(Figure 3.1)
The
1
7-socket
Amphenol receptacle
RC2
provides
a
connection
point
for the Control Module. To make
con
nections,
align keyway,
insert
Control Module
plug fully
into
receptacle,
and
rotate
threaded collar
fully
clock
wise.
A
properly
connected Control Module is
neces
sary for
unit
operation.
The command
signals required
and the
output
signals
available
at
the sockets of
receptacle
RC2
are as
fol
lows:
Socket
A:
Reference
voltage
for
output
command;
+l0vdc
Socket B:
Output
command
signal.
Socket C:
Not used.
Socket D:
Output
contactor
control.
Socket
E:
Output
current
signal;
1
volt
per 150
amperes.
Socket
F:
Control
circuit
common.
Socket G:
Not used.
Socket
H:
+24
volts
dc
unregulated;
fused
at
1
ampere.
Socket
J:
115 volts
applied
from external circuit for
input
contactor
control.
Designed
for
use
with
a
normally-open,
momentary
contact
switch.
Socket
K:
115 volts
applied
from external circuitfor
input
contactor
control.
Designed
for
use
with
a
normally-closed, momentary
contact
switch.
Socket
L:
24
volts dc
unregulated;
fused
at
1
Socket
M:
Output voltage signal;
I
volt per 10 volts.
Socket
N:
+15 volts dc rectifier caution
signal.
Present
when rectifier is overheated
or
there is
unbalanced
output.
Socket P:
Transformer caution
signal. Normally-open
relay
activates
to
potential
of
pin
F
(control
circuit
common)
when the transformer is
overheating.
Socket
A:
Fan
motor
signal. Normally-open, relay
activates
to
potential
of
pin
F
(control
circuit
common)
when the fan
motor
is
operating.
TA.1Il 059
Figure
3-1. Front VIew Of 17-Socket
Amphenol
Receptacle
With
Socket LocatIons
3-4.
ELECTRICAL INPUT CONNECTIONS
INPUT
A.
ElectrIcal
Input Requirements
This
welding
power
source
is
designed
to
be
operated
from
a
three-phase
60
Hertz,
ac
power
supply
which has
a
line
voltage rating
that
corresponds
with
one
of the
electrical
input voltages
shown
on
the
nameplate.
Con
sult the
local
electric
utility
if
there is any
question
about
the
type
of electrical
system
available at the installation
site
or
how
proper connections
to the
welding
power
source are
to
be made.
B.
installation
POSITIVE
NEGATIVE
+
ampere.
SocketS:
Socket
T:
Chassis
common.
115
vac
return
for
Input
contactor control.
F2544 Pacie
9