INVT SV-DA200 Operation Manual page 253

SV-DA200 series AC servo drives
Code Name
parameter setup is
wrong
Er20-0 Speed deviation fault
Position overtravel-FWD
Er21-0
overtravel
Position overtravel-REV
Er21-1
overtravel
Hybrid control deviation
Er22-0
is too large
Causes
or P4.41 is larger than 0.
In non-torque mode, the deviation
between motor speed and speed
command exceeds the set value
of P4.39
1. U, V, W phases of the motor
are connected reversely or motor
cable is not connected.
2. The motor load is so heavy that
it causes motor stall
3. Insufficient drive force that
causes motor stall
4. Speed loop control parameters
setting is improper
5. The set value of P4.39 is too
small.
Under position mode or
fully-closed loop mode, the FWD
limit switch is touched or the
accumulated feedback pulse
exceeds P0.35.
Under position mode or
fully-closed loop mode, the FWD
limit switch is touched or the
accumulated feedback pulse
exceeds P0.36.
1. Server response time is too
slow, causing retention pulse
number to exceed the setting
value of P4.33;
2. The motor load is too heavy to
cause motor stall;
3.The pulse input frequency is too
high and exceeds the max. speed
of motor;
4. Position command input step
change exceeds the setting value
of P4.33.
‐243‐
Faults and solutions
Countermeasures
connected reliably;
2.Check whether P4.40 and P4.41
are set improperly.
1. Check the phase sequence of
motor cable and ensure right wiring;
2. Check whether the conveyer belt
or chain or the workbench reaches
the boundary or encounters
obstacles;
3. Check whether the loop control
parameters are set correctly or the
drive is damaged or servo system
model is proper;
4. Enlarge the setting value of P4.39
5. Set P4.39 to 0 to disable speed
deviation fault detection.
1.Check whether FWD limit switch
signal is correct;
2.Check whether P0.35 is set
properly.
1.Check whether REV limit switch
signal is correct;
2.Check whether P0.36 is set
properly.
1. Check whether the conveyer belt
or chain or the workbench reaches
the boundary or encounters
obstacles;
2. Enlarge the position loop gain
parameters or speed feedforward
gain or P4.33;
3. Adjust the electronic gear ratio
parameter;
4. Decrease the variation of position
command input.