YASKAWA
TOMPYEULA7002A LA700 Series Installation and Operation Instruction
35
Code
Name
Causes
Possible Solutions
When
A1-02 = 7 [CLV/PM]
, the motor data set in
the
E5-xx [PM Motor Settings]
parameters are
incorrect.
Refer to the motor nameplate or test report and set
E5-xx
correctly.
dv8
PM Rotor Position DetectionError
Motor characteristics changed.
Parameters that control Initial Pole Search are set
incorrectly (set up may be incomplete).
Parameters for the motor encoder are set to the
wrong values (set up may be incomplete).
•
Do the setup process again.
•
Do Stationary Auto-Tuning or Initial Pole Search Auto-
Tuning.
The brake released during Initial Pole Search or
during power loss.
•
Examine the brake sequence.
•
You must keep the brake applied during Initial Pole Search and
when there is an interruption of the power supply.
You cannot do Initial Pole Search on the motor.
Use a PG option card that is compatible with both the drive and
an absolute encoder.
EF
Up/Down Command Input Error
An Up command and a Down command were input
at the same time for longer than 0.5 s.
Examine the Up and Down command sequence and correct the
problem.
EF3 - EF10
External Fault (Terminal Sx)
MFDI terminal Sx caused an external fault through
an external device.
External Fault [H1-xx = 20 to 2F]
is set to MFDI
terminal, but the terminal is not in use.
•
Find the device that caused the external fault and remove the
cause.
•
Correctly set the MFDI.
FrL
Speed Reference Missing
The drive received an Up/Down command when
d1-18 = 1 [Speed Reference Selection Mode = High
speed has priority]
,
H1-xx ≠ 53 [MFDI Function
Selection ≠ Leveling Speed]
, and no speed is
selected at start.
•
Examine the settings for
d1-18
and
H1-03 to H1-10 [Terminal
S3 to S10 Function Selection]
to make sure that the selected
speed selection method aligns with the elevator controller
sequence.
•
Make sure that the elevator controller is connected correctly.
•
Make sure the elevator controller selects the speed correctly.
GF
Ground Fault
Overheating caused damage to the motor or the
motor insulation is not satisfactory.
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
The motor main circuit cable is contacting ground
to make a short circuit.
•
Examine the motor main circuit cable for damage, and repair
short circuits.
•
Measure the resistance between the motor main circuit cable
and the ground terminal. If there is electrical conduction,
replace the cable.
An increase in the stray capacitance of the cable and
the ground terminal caused an increase in the
leakage current.
•
If the wiring length of the cable is more than 100 m, decrease
the carrier frequency.
•
Decrease the stray capacitance.
There was a problem with the drive hardware.
Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
LF
Output Phase Loss
The motor main circuit cable is disconnected.
Connect motor main circuit cable wiring. Correct wiring errors in
the main circuit drive input power.
There is a disconnection in the motor coil winding.
If a coil is disconnected, measure the motor Line-to-Line
Resistance and replace the motor.
The screws on the drive output terminals are loose.
Tighten the terminal screws to the correct tightening torque.
The rated output current of the motor is less than
5% of the continuous rated output current of the
drive.
Examine the drive capacity or the motor output to be applied.
You are trying to use a single-phase motor.
The drive cannot operate a single-phase motor.
The output transistor in the drive is damaged.
•
Re-energize the drive.
•
If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact
Yaskawa or your nearest sales representative.
oC
Overcurrent
The load is too heavy.
•
Measure the current flowing into the motor.
•
Replace the drive with a larger capacity model if the current
value is more than the continuous rated output current.
•
Decrease the load or replace with a larger drive to prevent
sudden changes in the current level.
The motor main circuit cable is contacting ground
to make a short circuit.
•
Examine the motor main circuit cable for damage, and repair
short circuits.
•
Measure the resistance between the motor main circuit cable
and the ground terminal. If there is electrical conduction,
replace the cable.
A short circuit or ground fault on the drive output
side caused damage to the output transistor of the
drive.
•
Make sure that there is not a short circuit in terminal B1 and
terminals U/T1, V/T2, and W/T3. Make sure that there is not a
short circuit in terminals - and terminals U/T1, V/T2, and W/
T3.
•
If there is a short circuit, contact Yaskawa or your nearest sales
representative.