AuCom EMXAe User Manual page 90

TROUBLESHOOTING
Symptom
Motor does not reach full
speed.
Soft stop ends too quickly. • The soft stop settings may not be appropriate for the
After selecting Adaptive
Control the motor used
an ordinary start and/or
the second start was
different to the first.
Parameter settings
cannot be stored.
USB Full
USB Missing
EMX4e User Manual (710-18433-00C)
88 |
Probable Cause
• If the start current is too low, the motor will not
produce enough torque to accelerate to full speed.
The soft starter may trip on excess start time.
NOTE
Make sure the motor starting parameters are
appropriate for the application and that you are
using the intended motor starting profile. If a
programmable input is set to Motor Set Select,
check that the corresponding input is in the
expected state.
• The load may be jammed. Check the load for severe
overloading or a locked rotor situation.
motor and load. Review the soft stop settings.
• If the motor is very lightly loaded, soft stop will have
limited effect.
• The first Adaptive Control start is actually 'Constant
Current' so that the starter can learn from the motor
characteristics. Subsequent starts use Adaptive
Control.
• Make sure you are saving the new value by pressing
the STORE button after adjusting a parameter
setting. If you press EXIT, the change will not be
saved. The EMX4e does not display a confirmation.
• Check that the adjustment lock (parameter 10G) is
set to Read & Write. If the adjustment lock is set to
Read Only, settings can be viewed but not changed.
• The USB drive may not have enough free space
available for the selected function.
• The file system on the USB drive may not be
compatible with the soft starter. The EMX4e
supports FAT32 file systems. The EMX4e's USB
functions are not compatible with NTFS file systems.
A USB function has been selected in the menu, but the
product cannot detect a USB drive. Check that the USB
drive has been inserted in the port.