Nord Drivesystems SK 750E-751-323-A - Operation and Display; Electrical Connection

NORDAC SK 750E Manual
58 Technical design subject to change BU 0750 GB
4.3.1 Electrical connection
The SK PAR-2E ParameterBox is connected using the screw-type terminal.
Number
Description
Terminals
1
+ 4.5V ... 30V
with +15V / 60mA
0.14 ... 1.5 mm²
2
GND
3
P+ (A) RS485 +
4
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 Parame-
terBox should be selected for this.
Communication via RS485
If several frequency inverters are connected in series (as shown in the figure below) be sure to make the Pa-
rameterBox either the first or the last unit within the bus system. A terminating resistor (of approximately 120 )
should be provided on the frequency inverter at the opposite end of the series of units communicating over the
bus.
Switch cabinet
Geared motor with FI in the field
SK PAR-2E
P. no. 278910110
SK 700E
SK 750E
SK 500E
NOTE: For more information please refer to the BU 0040 ParameterBox Operating Instructions.
Schalt-
schranktür