NORD Drivesystems BU0300 - Manual (Page 55)

4.3 ParameterBox (Installation variant)
BU 0300 EN Subject to technical alterations 55
SK PAR-2E electrical connection
The ParameterBox SK PAR-2E is connected via the plug-in screw terminals, which are located inside the
ParameterBox.
Number Description Terminals
42 + 4.5 … 30V
with +15V / 60mA
0.14…1.5 mm² 40 GND
73
P+ (A) RS485 +
74 P-(B) RS485 -
Supply voltage
The +15V supply voltage for the ParameterBox can normally be drawn from the connected frequency inverter.
However, if several frequency inverters are linked together, ensure that only one frequency inverter is tapped
for voltage and not several inverters! The frequency inverter with the shortest cable distance to the
ParameterBox should be selected for this.
Communication via RS485
With connection of several frequency inverters in series (as diagram below), ensure that the ParameterBox is
the first or last participant in the bus system. A termination resistor (approx. 120
Ω) must be provided for the
frequency inverter at the other end of the entire bus system. A termination resistor of this type is included as
standard with the SK 300E.
Control cabinet
Geared motor with SK 300E
in field
SK PAR-2E
Mat. No. 278910110
SK 700E SK 500E
NOTE: For further information, see the ParameterBox instruction manual BU 0040.