Nord Drivesystems NORDAC LINK SK 155E-FDS - FAQ Operational Problems; Table 6: FAQ Operational Problems

6 Operating status messages
BU 0155 en-3520 99
6.4 FAQ operational problems
Fault Possible cause Remedy
Device will not start (all LEDs
off)
• No mains voltage or wrong mains
voltage
• Devices without integrated mains unit
(Option –HVS): No 24 V DC control
voltage
• Check connections and supply
cables
• Check switches / fuses
Device does not react to
enabling
• Control elements not connected
• Right and left enable signals present
simultaneously
• Enable signal present before device
ready for operation (device expecting a
0  1 flank)
• Restart inhibit is active
• Blocking time for reversing is active
• Reset enable
• Change over P428 if
necessary: "0" = device
expects a 01 flank for enable
/ "1" = device reacts to "Level"

Danger: Drive can start up
independently!
• Check control connections
• Check P130
• Check DIP switch S2-DIP1
Motor will not start in spite of
enable being present
• Motor cables not connected
• Brake not ventilating
• Check connections and supply
cables
Device switches off without
error message when load
increases (increased
mechanical load / speed)
• Mains phase missing
• Check connections and supply
cables
• Check switches / fuses
Motor rotating in wrong
direction
• Motor cable: U-V-W interchanged
• Motor cable Switch 2 phases
• Alternatively:
– Swap parameter P420
functions right / left enable
Table 6: FAQ operational problems