Nord Drivesystems NORDAC LINK SK 155E-FDS - Commissioning; Connection; Displays; Configuration

NORDAC LINK (SK 155E-FDS / SK 175E-FDS) – Users Manual for Motor Starters as Field Distributors
68 BU 0155 en-3520
4.4.3 Commissioning
4.4.3.1 Connection
The PROFIBUS cable (purple) is made via the plug connector PBR (Bus-In) on option slot M5 or PBR
(Bus-Out) on option slot M7.
4.4.3.2 Displays
The status of the PROFIBUS is signalled by a BR LED.
LED BR Meaning
OFF
No cyclic process data communication active, i.e. no data communication with slave.
• PLC / Master in STOP or switched off
• Missing 24 V DC voltage supply to motor starter
• Profibus cable between PLC / Master and motor starter / Slave not connected
• Connections not connected or exchanged
• Bus terminating resistor not set correctly (at first and last slave of bus line)
• Erroneous addressing (wrong address set)
• Missing hardware configuration in PLC / Master, possible wrong GSD file
(NORD0DA5.gsd) used (Link
)
green ON
• Normal operation (cyclic process data communication in operation)
4.4.3.3 Configuration
Process data
The process data is used to control the motor starter and communicate its status. The transfer of this
data is carried out cyclically. There is only one process data object (PDO) for the motor starter, with a
fixed data length of 1 byte. Only the bottom 4 bits are used. A distinction is made between the setpoint
PDO (from PLC to device (BUS-IN bits)) and the actual value PDO (from device to PLC (BUS-OUT
bit)).