Operating Instructions

Fault Codes
Digital Keypad
333 | 443
ID*
Display on LCD Keypad
Fault Name
Fault Descriptions
62
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.
Action and Reset
Action level
When Pr.07-13 is not 0, and the DC bus voltage is lower than the level of dEb.
Action time
Immediately act
Fault treatment parameter
N/A
Reset method
Auto
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.
Hand
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.
Reset condition
Auto: The fault is automatically cleared.
Hand: When the drive decelerates to 0 Hz.
Record
Yes
Cause
Corrective Actions
Unstable power source or the power is off
Check the power system.
There is any other large load operates in
the power system
● Replace power system with a larger capacity.
● Use a different power system from the large load system.
ID*
Display on LCD Keypad
Fault Name
Fault Descriptions
63
Over slip error (oSL)
On the basis of the maximum slip limit set via Pr.10-29, the speed
deviation is abnormal. When the motor drive outputs at constant
speed, F>H or F<H exceeds the level set via Pr.07-29, and it
exceeds the time set via Pr.07-30, oSL shows. oSL occurs in
induction motors only.
Action and Reset
Action level
Pr.07-29
100% of Pr.07-29 = the maximum limit of the slip frequency (Pr.10-29)
Action time
Pr.07-30
Fault treatment parameter
Pr.07-31
0: Warn and continue operation
1: Fault and ramp to stop
2: Fault and coast to stop
3: No warning
Reset method
Auto
Pr.07-31=0 is a warning.
When the motor drive outputs at constant speed, and F>H or F<H does not exceed
the level set via Pr.07-29 anymore, oSL warning will be cleared automatically.
Hand
When Pr.07-31=1 or 2, oSL is an error, and it needs to reset manually.
Reset condition
Immediately reset
Record
Pr.07-31=1 or 2, oSL is “Fault”, and the fault is recorded.