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(3) When motor stalls during acceleration
(5) When function change disabled
(4) When motor generates abnormal heat
Motor stalls during accel-
eration
Use thicker cable for wir-
ing between drive and mo-
tor, or shorten wiring
length.
Special motor in use?
Reduce torque of load or
increase drive capacity.
Torque of load excessive?
Motor terminal voltage
lowered?
Moment of inertia of motor
or load excessive?
Prolong time setting.
Acceleration time setting
too short?
Probable faulty drive or
error because of noise, etc.
Contact
Saftronics.
Setting of torque boost
amount correct?
Consult with
Saftronics.
Reduce moment of inertia
of load or increase drive
capacity.
Increase torque boost
amount.
Yes
No
Yes
Yes
No
No
Yes
No
No
Yes
No
Yes
Any of E01, E02, E03 set
to 5?
Change function after
stopping drive.
Set F00 to 0.
F00 set to 0?
Short-circuit between ter-
minals X1,X2,X3 corre-
sponding to function set to
5 and CM terminal.
Function change is disabled.
YES
YES
YES
NO
NO
Attempt made to change
an unchangeable function
during operation?
Function to be changed F05,
F06, F24, H01 or H02?
Change other functions.
Function to be changed
F02? FWD or REV ter-
minal connected to CM
terminal?
Open FWD and REV
command.
Press STOP key and UP or
DOWN key simultaneously.
Contact
Saftronics.
YES
YES
YES
NO
NO
NO
NO
Function to be changed
F00 or H03?
Yes
Yes
No
Yes
Motor generates ab-
normal heat
No
No
No
Yes
Faulty motor.
Lighten load or increase
motor capacity.
Use motor exclusive to
drive.
Change the setting.
Probable faulty drive.
Contact
Saftronics.
V/f pattern fitted to mo-
tor?
Motor been contin uously
operated at extremely low
speed?
Load excessive?
Is the output voltage (at
terminals U,V,W) bal-
anced?
