Valley FABRICATOR 251, Руководство по обслуживанию

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August 22, 2008
8-3
SERVICE MANUAL FABRICATOR 251
8.04 Circuit Operation Of The Spool Gun
PCB 7978034
CONNECTOR X1
Terminal X1/1
moto r r elay "no r mally open" - connects to spool
gun moto r
measu r e 0 to 24VDC (depends on wi r e speed
setting)
w
r t 7977964 JB/8 in spool gun setting
Terminal X1/2
moto r r elay "common" - connects to moto r
output f r om 7977964 PCB
connects to 7977964 JB/6
Terminal X1/3
moto r r elay "no r mally closed" - connects to
main wi r e feed moto r
measu r e 0 to 24VDC (depends on wi r e speed
setting)
w
r t 7977964 JB/8 in no r mal setting
Terminal X1/4
solenoid r elay "no r mally open" - connects to
spool gun solenoid
Terminal X1/5
solenoid r elay "common" - connects to 24VAC
supply
Terminal X1/6
solenoid r elay "no r mally closed" - connects to
main solenoid
CONNECTOR X2
Terminal X2/1
wi r espeed r elay "no r mally open" - connects to
spool gun wi r espeed pot wipe r
measu r e 0 to 5VDC (depends on wi r e speed
setting)
w
r t 7977964 JA/5 in spool gun setting
Terminal X2/2
wi r espeed r elay "common" - connects to
wi r espeed potentiomete r input of 7977964 PCB
measu r e 0 to 5VDC (depends on wi r e speed
setting)
w
r t 7977964 JA/5
Terminal X2/3
wi r espeed r elay "no r mally closed" - connects to
main wi r espeed pot wipe r
measu r e 0 to 5VDC (depends on wi r e speed
setting)
w
r t 7977964 JA/5 in no r mal setting
Terminal X2/4
t r igge r r elay - connects to t r igge r input of
7977964 PCB
Terminal X2/5
t r igge r r elay - connects to t r igge r input of
7977964 PCB
Terminal X2/6
no connection
CONNECTOR X3
Terminal X3/1
no r mal t r igge r input
measu r e app r ox 2.5VDC
w r t D11 anode when t r igge r open & app r ox
6VDC when t r igge r closed
w r t D11 anode
Terminal X3/2
no r mal t r igge r input
measu r e app r ox 14VDC
w r t D11 anode when t r igge r open & app r ox
6VDC when t r igge r closed
w r t D11 anode
Terminal X3/3
spool gun t r igge r input
measu r e app r ox 2.5VDC
w r t D11 anode when t r igge r open & app r ox
6VDC when t r igge r closed
w r t D11 anode
Terminal X3/4
spool gun t r igge r input
measu r e app r ox 14VDC
w r t D11 anode when t r igge r open & app r ox
6VDC when t r igge r closed
w r t D11 anode
Terminal X3/5
24VAC supply fo r boa r d
measu r e app r ox 24VAC
w r t X3/6
Terminal X3/6
24VAC supply fo r boa r d
measu r e app r ox 24VAC
w r t X3/5