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Nord Drivesystems NORDAC LINK SK250E-FDS - FAQ Operational Problems

Nord Drivesystems NORDAC LINK SK250E-FDS
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NORDAC LINK (SK 250E-FDS ... SK 280E-FDS) – Users Manual for Frequency Inverters as Field Distributors
174 BU 0250 en-3021
Pos: 615 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/FA Q Betriebsstƶrungen @ 9\m od_1448963314277_3 88.docx @ 268440 @ 2 @ 1
6.4 FAQ operational problems
Fault Possible cause Remedy
Pos: 616 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betri ebsstƶrungen_01 [ SK xxxE-FDS] @ 18\mod_149684526 0375_388.docx @ 2353501 @ @ 1
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
Pos: 617 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betri ebsstƶrungen_02 [ SK 1x0E, SK 2xxE, SK 2xxE-FDS] @ 9\ mod_1448963508461_388.d ocx @ 268836 @ @ 1
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
independently!
• Check control connections
• Check P509
Pos: 618 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betri ebsstƶrungen_03 [SK 1x0E, SK 2xxE, SK 2xxE-FDS] @ 9\ mod_1448963505438_388.d ocx @ 268803 @ @ 1
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
Pos: 619 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betr iebsstƶrungen_04 [ SK 1xxE, SK 2xxE, SK xxxE-FDS] @ 9\ mod_1448963501354_388. docx @ 268770 @ @ 1
Device switches off without
error message when load
increases (increased
mechanical load / speed)
• Mains phase missing
• Check connections and supply
cables
• Check switches / fuses
Pos: 620 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betri ebsstƶrungen_05 [ SK 1x0E, SK 2xxE, SK 2xxE-FDS] @ 48\mod_1596788653102_388. docx @ 2659222 @ @ 1
Motor rotates in the wrong
direction
• Motor cable: U-V-W incorrectly
connected
• Motor cable: Change 2 phases
• Alternative:
– Check motor phase
sequence (P583)
– Change Enable right/left
functions (P420)
– Change control word Bit
11/12 (for bus control)
Pos: 621 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betri ebsstƶrungen_06 [ SK 1x0, SK 2xxE, SK 2xxE-FDS] @ 9\mod_14 48963480910_388.doc x @ 268704 @ @ 1
Motor not reaching required
speed
• Maximum frequency parameter setting
too low
• Check P105
Pos: 622 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betri ebsstƶrungen_07 [ SK 1x0E, SK 2xxE-FDS] @ 9\mod_144896 5247251_388.doc x @ 269034 @ @ 1
Motor speed does not
correspond to the setpoint
specification
• Analogue input function set to
ā€œFrequency additionā€. Another setpoint is
present.
• Check
P400
• P420, check active fixed
frequencies
• Check bus setpoints
• P104/ P105
Check ā€œMin/ max.
–frequencyā€
• P113
Check ā€œJog frequencyā€
Pos: 623 /Anleitungen/ Elektronik/F U und Starter/6. Meldungen zu m Betriebszustand/Betr iebsstƶrungen ( Auflistung)/FAQ Betri ebsstƶrungen_08 [ SK 2xxE, SK 2xxE-FDS] @ 9\mod_144896 3473878_388.doc x @ 268638 @ @ 1
Motor generating a
considerable amount of
noise (at the current limit)
and "OFF" signal is
implemented at slow speed
with little or no control,
possibly with error message
• Tracks A and B swapped round by
encoder (for speed feedback)
• Incorrect encoder resolution setting
• Encoder power supply missing
• Encoder faulty
• Check encoder connections
• Check P300, P301
• Monitor via P735
• Check encoder

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