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Wecon VD2 SA Series Servo Drives User Manual (Full V1.0)
151
WECON technology Co., Ltd
1. The load is too large, and the
drive outputs with maximum
torque, but it still cannot reach
the target speed within the
predetermined time;
2. Whether the maximum
forward torque limit and the
maximum reverse torque limit
are set too small;
3. The motor is blocked;
4. [P1-19] The torque limit time is
set too short;
the maximum reverse torque limit to
appropriate values;
3. Check whether the machine is
blocked;
4. Confirm whether the setting of the
function code [P1-19] is reasonable;
Category
3
Main circuit
electricity
is lack of
phase
When the power of the
three-phase driver is greater than
2.3kw, the main circuit power
supply is connected to
single-phase, and this fault will
be reported.
Er.38
1. Whether the drive of three-phase
specification is running under
single-phase power supply;
2. Check whether the main circuit input
L1, L2, L3 wiring is good;
3. The three-phase power supply is
unbalanced or the three-phase voltage
is too low.
Category
3
Emergency
stop
The drive received an emergency
stop instruction
Er.39
1. Check whether it is a man-made
emergency shutdown protection, if so,
wait for other system faults to be
removed and then power on again;
2. If it is triggered by mistake, please
check whether the wiring and function
configuration of the DI terminal are
normal.
Category
3
Encoder
battery failure
1. During power failure, the
multi-turn absolute value motor
is not connected to the battery;
2. The encoder battery voltage is
too low, less than 3V;
Er.40 Replace with a new encoder battery;
Category
3
Motor
(encoder) over
temperature
The motor encoder detects that
the temperature exceeds 90
degrees Celsius.
Er.41 Check whether the motor is
overloaded
Category
3
Encoder write
faults
1. The encoder write operation
does not respond normally
Er.42 Check whether the encoder and wiring
are normal
(4) The 4th category (category 4 for short) clearable warnings
Category
Error name
Cause of fault
Fault
code
Troubleshooting
Category
4
Overspeed alarm
The speed exceeds the alarm
limit value
A-81
Check whether the setting value of
function code P1-14 is too small, and
then check whether the speed setting
is too high.
Category
4
Overload
Motor overload warning
A-82
Check whether the load of the motor
is too large. If the load is too large,
replace the motor and driver with a
larger power.