Nord Drivesystems SK 180E Series, User Manual

Page: 169 / 212

6 Operating status messages
BU 0180 en-4118 169
6.4 FAQ operational problems
Fault Possible cause Remedy
Device will not start (all LEDs
off)
• No mains voltage or wrong mains
voltage
• Check connections and supply
cables
• Check switches / fuses
Device does not react to
enabling
• Control elements not connected
• Incorrect control word source setting
• Right and left enable signals present
simultaneously
• Enable signal present before device
ready for operation (device expecting a
0

1 edge)
• Reset enable
• Change over
P428
if
necessary: "0" = device
expecting a 0

1 edge for
enable / "1" = device reacts to
"Level"

Danger: Drive can start up
ind ependently!
• Check control connections
• Check
P509
Motor will not start in spite of
enable being present
• Motor cables not connected
• Brake not ventilating
• No setpoint specified
• Incorrect setpoint source setting
• Check connections and supply
cables
• Check control elements
• Check P510
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:
– Switch parameter
P420
right / left enable functions
– Switch control word bits
11/12 (with bus actuation)
Motor not reaching required
speed
• Maximum frequency parameter setting
too low
• Check
P105