Festo Контроллеры двигателя SFC-LAC - Manual (Page 151)

6. Diagnostics and error display
6−11
Festo GDCP−SFC−LACI−IO−EN en 0812NH
Error Fault
no.
*)
Object Possible cause and remedy
COMMUTATION
POINT ERROR Commutation point is invalid.
Possible cause and remedy:
Ĉ The drive is blocked: Ensure freedom of movement.
Ĉ Excessive load: Reduce the load.
Ĉ Controller parameter wrongly set: Determine the
relevant controller parameter and set it to the corĆ
rect value. To do this, you may have to perform a
commutation point search without a load (remove
the load, correctly set the tool mass and applied
load), start the axis, connect the load (correctly set
the tool mass and applied load), determine the
new controller parameters (see FCT help on conĆ
troller parameterisation), reparameterise the drive
and then restart the commutation point search
with new controller parameters.
Ĉ The drive remains directly at a hard end stop.
Vibration motion is therefore not possible in the
direction of the end stop. The following conditions
are necessary in order to find the commuting point:
Cushion the end points / make them soft (e.Ăg.
rubber bumper).
Ĉ The axis is not fastened stiffly enough: Stiffen the
axis mounting.
Ĉ The effective load is not fastened stiffly enough on
the axis: Stiffen the load mass mounting.
Ĉ Effective load can vibrate: Form stiffer load; modify
intrinsic frequency of the load.
Ĉ If several drives are fitted in a vibration−free sysĆ
tem: Carry out commutation point search one after
the other (see 2051h).
Contact the Festo service department if these measuĆ
res do not produce the desired results.
2FF1h
Bit 15 41
HARDWARE
ERROR SFC−LACI Device fault SFC−LACI, e.Ăg. EEPROM defective
· Contact Festo service.
2FF1h
Bit 0 51
LOAD−POWER−
DOWN Load voltage < 36 V or missing hardware enable
Ĉ Voltage drops under load: Power supply too weak,
cable too long, cable cross−section too small?
Ĉ Hardware enable connection: see 3.2
2FF1h
Bit 7 70
*) Fault number in the diagnostic memory, see section 6.3.