Fronius 4000 R Bedienungsanleitung Seite 19

Fig.3 Jacks and connectors at front panel
Welding voltage sense input ... to connect calibration system with
output of welding unit. Serves for voltage measurement (lines
connected are not live!)
Red banana jack ... + input
Blue banana jack ... - input
Caution! The calibration system is designed for an input voltage
of 140V to be connected to the sense input jacks. To ensure the
operator's safety, the maximum input voltage admissible is limited
to 113V (= maximum open-circuit voltage admissible for welding
units with "S" label).
+/- current connectors with bayonet catch ... to put welding unit
connected under load and for current measurement.
Fig.4 Controls/connectors at rear panel
Calibration system mains switch
system on/off.
Cooling unit mains switch ...to switch cooling unit on/off (only works
together with mains switch of calibration system
Voltage measurement output ... to measure welding voltage using
an external measuring instrument.
Current measurement output ... to measure welding current using
an external measuring instrument ... 10mV = 1A
Voltage/current measurement output ... to measure welding voltage/
welding current using an external measuring instrument - depending
on the position the measuring output switch
current or welding voltage is measured
... to switch entire calibration
)
is set to welding
7
Caution! At the measuring outputs at the rear, which are
accessible (BNC jacks), voltage values higher than the protective
low voltage (open-circuit voltage of welding units) may be present!
Before connecting the measurement lines, make sure the
measurement outputs are neutral and the measurement lines are
already connected with a measuring instrument! Improper handling
may result in an electrical shock!
Power sockets ... to connect the equipment required for calibration
(e.g. laptop, printer, measuring instruments)
Caution! Do not connect welding units, electrical hand tools or
other machines/equipment!
Fig.5 Connectors/jacks at rear panel
Fuse F4 for power sockets (10 A slow)
Fuse F1 for primary circuit of calibration system (2A slow)
Fuse F3 for magnetic switch (4A slow)
Fuse F2 for internal circuit of calibration system (2A slow)
Torch control connection jack ... for connection with MIG/MAG or
TIG welding unit
Connection jack for start button ... to switch welding current on/off.
Inactive unless connection between torch control of welding unit and
connection jack is established.
Leadthrough for water flow tube
Leadthrough for water return tube
Power cable with strain relief ... to put in 230V/50Hz electricity,
2,5mm²