NORD Drivesystems BU0100 - Manual (Page 3)

NORDAC SK 1xxE
BU 0100 GB Technical Modifications Reserved 3
1 General description
The product series NORDAC SK 1xxE constitutes a motor or wall-mounted electronic component that can be
used to handle simple drive or switching functions. The following types are part of this product series:
SK 140E Electronic motor starter
(Startup in one direction)
SK 150E Electronic soft starter
(Soft startup and run-down with adjustment of time and torque)
SK 160E Electronic reversing starter
(Startup possible in both directions)
The electronics of this motor starter series are integrated into the motor's terminal box. They can be directly
mounted on top of the motor (motor-integrated) or on the wall (proximity of motor). Each starter possesses an
assessment of a thermal protector (temperature probe or control) and an optional brake rectifier. A red or a
green LED visable from the outside through a transparent screw plug, indicating the devices status.
The NORDAC SK 140E enables a switching operation of a three-phase asynchronous motor in one direction.
This allows for cost-efficient switching directly at the drive.
The NORDAC SK 150E enables a soft start-up and run-down of three-phase asynchronous motors. This
allows for starting and stopping of the drive smoothly. With the soft starter, both torque and times can be set
separately for the startup and rundown of a drive.
The NORDAC SK 160E enables the switching operation of a three-phase asynchronous motor in both
directions. 2 rotary dip code switches are used to set a locking time to protect the installation against damage
caused by too quick a reversal.
The entire power range of the motor starter series is covered by one component size. The power range of the SK
140E
reaches from 0.12 kW to 3.0 kW, that of the SK 150E and SK 160E cover a range from 0.12 to 4.0 kW.
Motor sizes 80 to 112 (with the SK 140E up to size 100) allow for direct mounting; sizes 63 to 71 require a simple
adapter plate (Mat. No. 11015410).
The number of poles of a motor is immaterial; the only determining variable for the motor starter are the power
consumption and the motor size.
The control electronics require 24 VDC (15 ...30 VDC, ≈ 50 mA) supply voltage, e.g., from a PLC or another power
supply.
Optionally, each SK 1xxE is available with an integrated fast acting rectifier (BSG2). The electromechanical brake
can then be directly connected to the device; no additional supply voltage is required for the brake.
A bus access is possible for all electronic starters of the SK 1xxE series by means of an optional AS interface
(AS1).
With the option (MS) there is the possibility of realising the power input or motor output of the starter by means of a
system plug of the Harting HAN 10E type.
All devices of the SK150E/160E series in the versions with and without integrated brake rectifiers fulfil the
requirements for explosion protection (ATEX) in Zone 22 according to the currently valid standards according
to EN 50281 (Guideline 94/9/EG). However, this only applies if no further add-on options (AS interface, plug
connectors) are included.
The most current information and documentation can be downloaded free of charge from the homepage of
Getriebebau NORD at
www.nord.com .