Fronius TransPuls Synergic 2700, Service Manual

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64
Supply voltage from intermediate circuit 2 x 230 - 380 V DC
Output voltage Idle 59 (+/- 2) V
at a load of 4 A 55 (+/- 2) V
Technical Data
Function over-
view - Output voltage is electrically isolated and protected by 2 parallel switched PTC
resistors.
- The 1 V/A falling output characteristic of the NT 60 circuit enables several NT 60
adapters to be connected in parallel.
- If there is a short circuit, the NT 60 restricts to max. 15 A, using the internal current
limit, until the PTC resistors have reached the switch-off temperature. In the case of
a short circuit, the 55 V supply LED does not flash. As soon as the PTC resistors
trip, the „Error“ LED flashes.
Plug layout
(X1) (X2)
Fig. 33 Plug on NT 60 mains adapter
Pin 9 Intermediate circuit 1+
Pin 10 NC
Pin 11 Intermediate circuit 1 -
Pin 12 NC
Pin 13 Intermediate circuit 2+
Pin 14 NC
Pin Function
X1 Connection to wire-feed unit (secondary voltage)
Pin 1 + 55 V
Pin 2 + 55 V
Pin 3 GND
Pin 4 GND
X2 Primary connection intermediate circuit 1 and 2
Pin 1 Intermediate circuit 1+
Pin 2 NC
Pin 3 Intermediate circuit 1 -
Pin 4 NC
Pin 5 Intermediate circuit 2+
Pin 6 NC