NORDAC LINK (SK 155E-FDS / SK 175E-FDS) – Users Manual for Motor Starters as Field Distributors
46 BU 0155 en-3520
3 Display, operation and options
Electric shock
Touching the circuit board below the transparent screw cap on option slot E1 can result in an electric
shock which may cause serious or fatal injury.
• The screw cap for option slot E1 must only be opened when the frequency inverter is switched off.
• After switching off the frequency inverter wait for at least 5 minutes before opening the screw cap.
The FI is equipped with LED indicator lights LED indicator lights are directly assigned to the option
slots H1 and H2 as well as to M1 to M8. These are used to indicate the signal statuses of the relevant
option slot. In addition, on option slot E1 there are further, externally visible LED indicator lights for
status messages.
Alphanumeric display and control modules ( Section 3.2 "Control and parametrisation options ") can
be used for simple commissioning by changing parameters. For more complex tasks, connection to a
PC system can take place with the aid of the NORD CON parameterisation software.
Connection of such a parameterisation option is made via option slot D1. The screw cap must be
removed for this. Communication is via RS 232 or RS 485 to an RJ12 connection (standard).
Alternatively, a USB port can be installed as an alternative to the RJ12 connection. However, in this
case it is only possible to connect a PC system for use of the NORDCON software.
Commissioning of the device is generally possible without parameter adaptation, i.e. without a
parameterisation tool (NORDCON, ParameterBox, ControlBox). For this purpose, three
potentiometers (P1 – P3) on option slot E2, and two 4-pole DIP switch blocks (S1 and S2) on option
slot E1 are available.
For devices with an integrated interface for PROFIBUS DP (SK 1xxE-FDS-…-PBR), two additional 4-
pole DIP switch blocks (S3 and S4) can be found on option slot E3. These are used for addressing.
Blind plug removal
You can access the potentiometers and DIP switches by removing the blind plugs. Remove the blind
plugs only for commissioning and replace them properly afterwards. Make sure that no moisture or
dirt enters the device.
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