Festo Контроллеры двигателя SFC-LAC - Manual (Page 211)

6. Diagnostics and error display
6−11
Festo GDCP−SFC−LACI−CO−EN en 0812NH
Errors Fault
no.
*)
PNU 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 commutation
point: Cushion the end points / make them soft
(e.g. 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 system that can viĆ
brate: Carry out commutation point search one
after the other (see PNU 1072 / 2051h).
Contact the Festo service department if these meas−
ures do not produce the desired results.
PNU 205
0x8000 41
HARDWARE
ERROR SFC−LACI Device fault SFC−LACI, e.g. EEPROM defective
· Contact Festo service.
PNU 205
0x0001 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
PNU 205
0x0080 70
*) Fault number in the diagnostic memory, see section 6.4.