EM3E Series EtherCAT Stepper Drive User Manual
59
Motor does not turn
►
The controller instruction is not sent to the driver. Check if the value of 0x607A (
Target
position
) has changed,if not,then maybe the program has an exception.
►
Limit switch is activated. Check if the limit switch logic status is consistent with the set
by the master. Or whether the polarity of the slave input port is consistent with the limit
switch. Or whether the limit switch is damaged. Or whether the wiring between the limit
switch and the slave is correct. Or the mapping between the bit of 0x60FD and the master
is wrong.
►
The control instruction is normal,but the motor does not turn. It may be that the
output current setting is too small. Or the load is too heavy. Or the starting speed is too
large. Or the acceleration time is too short. Or the motor is damaged. All of the above can
be tested by letting the motor unload and setting the motor speed to 60rpm with
acceleration time 200ms to check the problem.
Homing Error
►
Wrong homing method. There are three modes of homing,when using the master
homing mode,the operation mode object 0x6060 = 8; when using the slave homing mode,
the 0x6060 = 6; when using the master-slave combination homing method,the 0x6060
value is first 8 and then 6. Please check master manufacturer for default homing mode,
and then check the selected homing method,the relevant parameters are correct,and the
limit switch needed in the selected homing method is normal.
►
Stop on the limit switch and keep processing Busy state. Some master stations are
master-slave combination homing mode (Panasonic and Keyence),the 0x6060 value is
first 8 and then 6. If there is no configuration 0x6060 in PDO or wrong configuration,then
will cause homing error.
Occasional dropouts during operation
►
Always a certain drive dropouts. Maybe network cable problem: Poor contact between
network cable and drive interface. Or the OUT port of the last drive has a problem. Or the
drive itself has problem. All of the above can be tested by swapping the drive or swapping
the network cable.
►
Random drive dropouts. Interference problem: Poor quality of network cable,it is
recommended to use a Category 5 Fast Ethernet cable or above,industrial grade network
cable with twisted pair shielding. Ensure that the equipment is well grounded. When
laying out the electrical cabinet,strong and weak power need to be separated. Keep away
from high power strong interference devices such as plasma generators,laser generators,
VFD etc.
