Lenze 931W - Manual (Page 45)

Troubleshooting and fault elimination
Fault elimination for general errors
8
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45 GHB 13.0002-EN 3.1
8 Troubleshooting and fault elimination
8.1 Fault elimination for general errors
Error Cause Remedy
No communication with drive possible Supply voltage error Check connections and supply of the
control and power voltage.
Communication error or defective RS232
communication cable
Check setting of the COM port in Fluxx
operating software
Check connection of the serial RS232 cable
Replace RS232 cable (cable defect)
Digital IOs do not function 24 V control voltage not connected Connect 24V control voltage / check
control voltage
Local CAN interface or function module
does not function
24 V control voltage not connected (LED
on application box/function module is not
blinking)
Connect 24V control voltage / check
control voltage
Check 4-pole communication cable
between drive and application box
Communication error or defective
communication cable
Replace 4-pole communication cable
between drive and application box
Wiring error Check of the connection of the digital IOs
Drive travels with maximum speed only Resolver error or connection error in the
motor cable
Carry out resolver position adjustment
Select the option ”Resolver direction
inversion” in the ”Service” tab
Exchange of 2 phases of the connection
(e. g. ”V/U/W” instead of ”U/V/W”)
Fieldbus has parameter change rights A higher-level control (e. g. Profibus S7)
has the access authorisations to the drive
Return parameter change rights to the
drive
Separation of the guiding from the bus by
means of the ”Quick stop” button in the
Fluxx on the ”Status” tab (caution: drive
stops, bus system is deprived of control
change rights)
Communication loss when travel tasks are
started
Power supply (specifically for DC drives) is
dimensioned too low.
Use voltage supply with higher output
power
Check mains supply with regard to voltage
dips