Fronius VR 1550 CMT-WS - VR 1500 - 11 and VR 1500 - 12 Operation Notes; Wire-Feeder Motor Cooling Requirements; Welding Current and Torch Compatibility; Special Application Notes

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Notes regarding the operation of the VR 1500 - 11
and VR 1500 - 12
Cooling the wire-
feeder motor
NOTE!
The VR 1500 - 11, VR 1500 - 12 and VR 1500 - 30 wirefeeders are equipped with a wa-
ter-cooled electric motor with shrunk-on-disc rotor and may only be operated in
conjunction with an FK 4000 R, FK 4000 R US or FK 9000 R cooling unit.
For the protection of the motor we recommend that you install the optional flow watchdog
for the cooling unit (fitted as standard on the FK 4000 R US).
Welding current
above 500 A
NOTE!
When using a welding current over 500 A, only operate the VR 1500 - 11, VR 1500 -
12 and VR 1500 - 30 wirefeeders with adequately dimensioned Fronius welding
torches that have an F++ connection.
PMR 4000 push-
pull option
NOTE!
If the PMR 4000 push-pull option is installed on the VR 1500 - 11 and VR 1500 - 30
wirefeeders, the power source must be equipped with an increased power supply
(55 V DC, 8 A).
Applications with
unreeling wire-
feeders
NOTE!
If unreeling wirefeeders are used, the power source must be equipped with an in-
creased power supply (55 V DC, 8 A).
TPS 7200 / 9000
applications with
VR 1500 - 12 and
unreeling wire-
feeders
NOTE!
If the TPS 7200 / 9000 is used with VR 1500 - 12 and unreeling wirefeeders, both the
1st and second power source must be equipped with an increased power supply (55
V DC, 8 A).