ABB MigRob 500 - Fan Control; Overheating Protection; Arc Voltage Measurement

-- 1 0 --
ba39d1ea
6.3 Fan control
The power source has a time control that means that the fans continue to run for 6.5
minutes after welding has stopped, and the unit switches to energy --saving mode.
The fans start again when welding restarts.
The fans run at reduced speed for welding currents up to 180 A, and at full speed for
higher currents.
6.4 Overheating protection
The welding power source has three thermal overload trips that operate if the
temperature becomes too high. When this occurs the welding current is interrupted
and the orange indicating lamp on the front of the power source comes on. The
thermal overload trip resets automatically when the temperature has fallen.
6.5 Arc voltage measurement
Arc voltage measurement can be carried out in two ways:
Alternative 2 means that a measurement cable must be connected to the workpiece.
This method gives the most accurate arc voltage measurement.
Alternative 1 (d elivery version)
Measurement between welding wire and OKC outlet.
Connections to connector XS31.
Required external
connections
Sleeve Explanation of existing connections in the
power source
J Welding minus, detection
M Welding minus from OKC outlet
H Arc voltage from the welding wire in the wire feed unit.
C
Forced welding stop, interrupted connection between C and
F
F
o
r
c
e
d
w
e
l
d
i
n
g
s
t
o
p
,
i
n
t
e
r
r
u
p
t
e
d
c
o
n
n
e
c
t
i
o
n
b
e
t
w
e
e
n
C
a
n
d
F entails stop.
Alternative 2A
Measurement between welding wire positive polarity, workpiece negative.
Connections to connector XS31.
Required external
connections
Sleeve Explanation of existing connections in the
power source
J Welding minus, detection
M
H Arc voltage from the welding wire in the wire feed unit.
C
Forced welding stop, interrupted connection between C and
F
F
o
r
c
e
d
w
e
l
d
i
n
g
s
t
o
p
,
i
n
t
e
r
r
u
p
t
e
d
c
o
n
n
e
c
t
i
o
n
b
e
t
w
e
e
n
C
a
n
d
F entails stop.