Chapter 14 Fault CodesMS300
596
Deceleration energy
backup error
(dEb)
When Pr.07-13 is not 0, and the power is suddenly off,
causing the DC bus voltage lower than the dEb action
level, the dEb function acts and the motor ramps to
stop. Then dEb displays on the keypad.
When Pr.07-13 is not 0, and the DC bus voltage is lower than the level of dEb.
Fault Treatment Parameter
When Pr.07-13 = 2 (dEb with auto-acceleration / auto-deceleration,
the drive outputs the frequency after the power is restored): dEb is
automatically cleared.
When Pr.07-13 = 1 (dEb with auto-acceleration / auto-deceleration,
the drive does not output the frequency after the power is restored):
The drive stops when dEb acts and the rotation speed becomes 0 Hz,
then the drive can be reset manually.
Auto: The fault is automatically cleared.
Hand: When the drive decelerates to 0 Hz.
Unstable power source or the
power is off
There is any other large load
operates in the power system
1. Replace power system with a larger capacity.
2. Use a different power system from the large load system.