100
YASKAWA
TOEPC71061752B GA500 Drive Installation & Primary Operation
Code
Name
Causes
Possible Solutions
The motor has overheated.
•
Check the load level, acceleration/
deceleration time, and motor start/stop
frequency (cycle time).
•
Decrease the load.
•
Increase the values set in
C1-01 to C1-08
[Acceleration/Deceleration Times]
.
•
Set
E2-01 [Motor Rated Current (FLA)]
correctly to the value specified by the
motor nameplate.
•
Make sure that the motor cooling system
is operating correctly, and repair or
replace it if it is damaged.
•
Adjust
E1-04 to E1-10 [V/f Pattern
Parameters]
. For motor 2, adjust
E3-04
to E3-10
. Decrease the values set in
E1-
08 [Mid Point A Voltage]
and
E1-10
[Minimum Output Voltage]
.
Note:
If the values set in
E1-08
and
E1-10
are
too low, the overload tolerance will
decrease at low speeds.
oH4
Motor Overheat Fault
(PTC Input)
The motor has overheated.
•
Check the load level, acceleration/
deceleration time, and motor start/stop
frequency (cycle time).
•
Decrease the load.
•
Increase the values set in
C1-01 to C1-08
[Acceleration/Deceleration Times]
.
•
Set
E2-01 [Motor Rated Current (FLA)]
correctly to the value specified by the
motor nameplate.
•
Make sure that the motor cooling system
is operating correctly, and repair or
replace it if it is damaged.
•
Adjust
E1-04 to E1-10 [V/f Pattern
Parameters]
. For motor 2, adjust
E3-04
to E3-10
. Decrease the values set in
E1-
08 [Mid Point A Voltage]
and
E1-10
[Minimum Output Voltage]
.
Note:
If the values set in
E1-08
and
E1-10
are
too low, the overload tolerance will
decrease at low speeds.
oL1
Motor Overload
The load is too large.
Decrease the load.
Note:
Reset
oL1
when
U4-16 [Motor oL1
Level]
< 100.
The acceleration/deceleration
times or cycle times are too short.
•
Examine the acceleration/deceleration
times and the motor start/stop
frequencies (cycle times).
•
Increase the values set in
C1-01 to C1-08
[Acceleration/Deceleration Times]
.