Uline H-2957 Mode D'emploi page 9

FLt MENU
SUB-
CODE NAME/DESCRIPTION
CODE
rSF
Atr- Atr
tAr
FLr
tHt- ltH
FAULT DETECTION
The AC drive has a comprehensive fault diagnostic system
that includes several different alarms and fault messages.
Once a fault is detected, the corresponding protective
functions will be activated. The following faults are
displayed as shown on the AC drive digital keypad display.
CODE NAME
OCF Overcurrent
SCF 1
Motor short circuit
SCF 3
Ground short circuit
SCF 4
IGBT short circuit
SOF
Overspeed
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FREQUENCY DRIVE CONTINUED
Fault Reset Assignment:
nO – Function inactive
L1H – Input L1 active high
L2H – Input L2 active high
L3H – Input L3 active high
L4H – Input L4 active high
Automatic Restart:
nO – Function inactive
YES – Automatic drive restart after fault condition
Max automatic restart time
Flying Restart (Catch on the fly):
Restarts the motor at the estimated speed the motor is already going.
nO – Function inactive
YES – Function active
Motor Thermal Current
POSSIBLE CAUSES
• Parameters in the Motor Control Menu
not correct
• Inertia or load too high
• Mechanical locking
• Short circuit or grounding at the drive output
• Ground fault during running status
• Commutation of motors during running status
• Significant current leakage to ground if several
motors are connected in parallel
• Internal power component short circuit detected
at power on
• Instability
• Overspeed associated with the inertia of the
application
NOTE: Not all faults can be cleared by resetting
at the keypad.
REMEDY
drC • Check the parameters
- are
• Check the size of the motor/drive/load
• Check the state of the mechanism
• Connect line motor chokes
• Reduce the Switching Frequency
• Check the ground connection of drive, motor
cable and motor insulation
• Check the cables connecting the drive to the
motor, and the motor insulation
• Connect motor chokes
• Contact your local Schneider Electric
representative
• Check the motor
• Overspeed is 10% more than Maximum
Frequency
necessary
• Add a braking resistor
• Check the size of the motor/drive/load
• Check parameters of the speed loop (gain
and stability)
FACTORY
SETTING
5Fr
tFr
so adjust this parameter if
0221 IH-2957
nO
nO
5 min
nO
varies