Delta EB3000 Series User Manual page 359

Chapter 9 Warning and Fault CodesEB3000
Check if the motor rated
current matches the motor
nameplate
Check if the PTC is
properly set and wired
Check if the setting for stall
prevention is correct
Unbalanced three-phase
impedance of the motor
Harmonics is too high
Abbreviated
ID No.
Fault Code
26 ot1
Action condition
Action time
Fault treatment parameter
Reset method
Reset condition
Record
Cause
Incorrect parameter setting Configure the settings for Pr.04-41 and Pr.04-42 again.
Mechanical error (e.g.
mechanical lock due to
over-torque)
The load is too large
Accel./ Decel. time and
working cycle are too short
V/F voltage is too high
when in open-loop circuit
control
The motor capacity is too
small
Overload occurs during
low-speed operation
Abbreviated
ID No.
Fault Code
30 cF1
Action condition
Action time
Fault treatment parameter N/A
Reset method
Reset condition
Record
Configure the correct rated current value of the motor again.
Check the connection between PTC thermistor and the heat protection.
Set the stall prevention to the proper value.
Replace the motor.
Use remedies to reduce harmonics.
Display on
Fault Name
KPED-LE02
Over-torque 1
Action and Reset
Pr.04-41 Over-torque Detection Level (OT1)
Pr.04-42 Over-torque Detection Time (OT1)
Pr.04-40 Over-torque Detection (OT1) (Default: 0)
0: Over-torque detection disabled
1: Over-torque detection during constant speed operation, continue to operate after
detection
2: Over-torque detection during constant speed operation, stop operating after
detection
3: Over-torque detection during operation, continue to operate after detection
4: Over-torque detection during operation, stop operating after detection
Auto When Pr.04-40=1 or 3, ot1 is a warning and will be automatically cleared.
Manual When Pr.04-40=2 or 4, ot1 is a fault and must be reset manually.
Resets when output current is smaller than over-torque detection level.
If ot1 is a warning, it will not be recorded.
If ot1 is a fault, it will be recorded.
Remove the causes of malfunction.
Decrease the loading.
Replace with a motor with larger capacity.
Increase the setting values for Pr.00-71–Pr.00-78 (accel./ decel. time)
Decrease the setting values for Pr.03-51–Pr.03-56 (V/F curve)
Replace with a motor with larger capacity.
Decrease the loading during low-speed operation.
Increase the motor capacity.
Display on
Fault Name
KPED-LE02
FRAM writing error
Action and Reset
Firmware internal detection writing error
Immediately acts when the drive detects the fault
Manual reset
Resets immediately
Yes
Output current is larger than over-torque
detection level Pr.04-41
Corrective Actions
FRAM cannot be written
9-28
Description
Description
<Go to List of Fault Codes>