Sk 2X5E Minimum Configuration - Nord Drivesystems NORDAC FLEX SK 210E Series Brief Instructions

NORDAC FLEX (SK 200E ... SK 235E) – Brief instructions for Frequency Inverters
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4.2.3.2

SK 2x5E minimum configuration

Minimal configuration without options
The variable frequency drive must be provided with an external control voltage.
L1 - L2/N - L3
115/230/400V
Variable Frequency
Drives
SK 2x5E-...
Function
Setpoint
Frequency ramp
Controller enable
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Minimum configuration with options
One switch and one potentiometer (such as SK CU4-POT) are required in order to implement
completely autonomous operation (independent of control lines, etc.). In combination with an
integrated power supply unit (SK CU4-...-24V), a solution that only has the power supply line can be
set up with an SK 2x5E, and demand-oriented speed and rotation direction control can be ensured
( Section 3.1.2 "Potentiometer adapter, SK CU4-POT").
Information
An 8-bit A/D - converter is integrated in the SK TU4-...-24V and SK CU4-...-24V power supply units. This makes
it possible to connect a potentiometer or another analog setpoint source to the power supply unit. The power
supply unit can convert the analog setpoint into an appropriate pulse signal. This signal can be connected to a
digital input of the variable frequency drive and processed by it as a setpoint.
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64
1/3~ 115/230/400V + PE
44
40
.
.
21
22
.
38
39
Setting
Integrated potentiometer P1
Integrated potentiometer P2
External switch S1
Convert analog signal
24V=
GND
Switch S1
Motor
PTC thermistor
BU 0240 en-US-3118