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221
Faults – Causes – Remedies
Faults, which cannot be reset automatically (continued)
Fault
Name
Probable cause
Remedy
InF4
[Internal MFG area]
• Internal data inconsistent
• Recalibrate the drive (performed by BLEMO Product
Support)
InF6
[Internal-option]
• The option installed in the drive is not
recognized
• Check the reference and compatibility of the option
InF7
[Internal-hard init.]
• Initialization of the drive is incomplete
• Turn off and reset
InF8
[Internal-ctrl
supply]
• The control power supply is incorrect
• Check the control section power supply
InF9
[Internal-
I measure]
• The current measurements are incorrect • Replace the current sensors or the power card
• Inspect/repair the drive
InFA
[Internal-mains
circuit]
• The input stage is not operating
correctly
• Perform the diagnostic tests via the
[1.10 DIAGNOSTICS]
menu.
• Inspect/repair the drive
InFb
[Internal- th.
sensor]
• The drive temperature sensor is not
operating correctly
• Replace the temperature sensor
• Inspect/repair the drive
InFC
[Internal-time
meas.]
• Fault on the electronic time
measurement component
• Inspect/repair the drive
InFE
[internal- CPU]
• Internal microprocessor fault
• Turn off and reset. Inspect/repair the drive
OCF
[Overcurrent]
• Parameters in the
[SETTINGS]
(SEt-)
and
[1.4 MOTOR CONTROL]
(drC-)
menus are not correct
• Inertia or load too high
• Mechanical locking
• Check the parameters
• Check the size of the motor/drive/load
• Check the state of the mechanism
PrF
[Power removal]
• Fault with the drive’s “Power removal”
safety function
• Inspect/repair the drive
SCF1
[Motor short circuit]
• Short-circuit or grounding at the drive
output
• Significant earth leakage current at
the drive output if several motors are
connected in parallel
• Check the cables connecting the drive to the motor, and the
insulation of the motor
• Perform the diagnostic tests via the
[1.10 DIAGNOSTICS]
menu.
• Reduce the switching frequency
• Connect chokes in series with the motor
SCF2
[Impedant sh.
circuit]
SCF3
[Ground short
circuit]
SOF
[Overspeed]
• Instability or driving load too high
• Check the motor, gain and stability parameters
• Add a braking resistor
• Check the size of the motor/drive/load
tnF
[Auto-tuning]
• Special motor or motor whose power
is not suitable for the drive
• Motor not connected to the drive
• Check that the motor/drive are compatible
•
• Check that the motor is present during auto-tuning
• If an output contactor is being used, close it during auto-
tuning
Содержание ER40-G
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