YASKAWA MOTOWELD-T300D - Page 46

46
Fig. 12.1 How to Check External Connections
Status
Cause of Problem Check Items
Short Pr (IF) terminals for automatic machine Nos. 171 and 173.
Replace Pr (IF) o
r
Pr (MB2).
Gas circuit or Pr
(
MX
)
failure
Pr
(
IF
)
or Pr
(
MB2
)
failure
Out
p
ut current s
y
stem failure
A
ll current, high voltage, and gas do
not operate even by turning ON the welding start signal.
Does not o
p
erate
(
or out
p
ut
)
.
O
p
erates.
O
p
erates
(
or out
p
uts
)
.