8
Operators Manual
Quality
•
Reliability
•
Performance
5 Installation
Connection to Electrical Mains Power
Supply
NOTE
. All electrical work shall only be
undertaken by a qualified electrician.
The Weldmatic 396 is supplied with a
5 metre 4 core 50/0.25 Heavy Duty PVC
mains power supply cable. This cable should
be correctly connected to a suitable 3 Phase
plug top or fixed connection point.
The minimum capacity of the mains wiring
and power outlet supplying a welder is
selected according to the effective primary
current of the machine. The effective primary
current for a Weldmatic 396 is 16 Amps.
The minimum recommended mains circuit
breaker rating for a Weldmatic 396 is
25 Amps.
Note:
Due to normal variations
of sensitivity, the tripping time of some
25 Amps circuit breakers may limit the
duty cycle available from the Weldmatic
396. A higher rated circuit breaker can be
selected, but the mains wiring capacity must
be increased to suit.
The current rating of the mains cable
depends on cable size and method of
installation. Refer to AS/NZS 3008.1, Table 9.
If it becomes necessary to replace the mains
flexible supply cable, use only cable with
correct current rating. Access to the supply
terminals is gained by removing the power
source side panels.
The replacement cable must be fitted and
retained in the same manner as the original.
Fig 2
Positive Wire
Output Voltage Polarity
The design of the Weldmatic 396 allows
selection of the output voltage polarity.
Positive Wire
G.M.A.W. with solid consumable wires is
carried out with the work piece Negative and
the welding wire Positive.
To setup for this condition, connect the
‘WORK’ lead plug into the (-) output socket
on the Power Source, and the ‘WELDING’
lead from the wirefeeder into the (+) socket
on the Power Source, as in Figure 2.
To wirefeeder
To work clamp
