Delta EB3000 Series User Manual page 343

Chapter 9 Warning and Fault CodesEB3000
Loose wiring terminal of
input power
Check if the input cable of
three-phase power is
broken
Unbalanced three-phase of
the input power
Brake discharge level is too
high
Abbreviated
ID No.
Warning Code
20 ot1
Action condition
Action time
Warning 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.
Warning Code
22 oH3
Action condition
Action time
Warning treatment
parameter
Reset method
Tighten the terminal screws with the torque listed in the user manual.
Make sure the wiring is correct.
Replace the broken part of the cable.
Check the status of three-phase power.
Adjust Pr.07-51 (Brake Transistor Level) setting value.
Display on
Warning 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
Warning Name
KPED-LE02
Motor over-heating PTC
Action and Reset
PTC input level > Pr.04-51 (default = 50%)
Immediately act
Pr.04-50 PTC (Positive Temperature Coefficient) Detection Action
0: Warn and keep operation
1: Fault and ramp to stop
Auto When Pr.04-50=0, oH3 is a warning and will be automatically cleared.
Manual When Pr.04-50=1, oH3 is a fault and must be reset manually.
Output current is larger than over-torque
detection level Pr.04-41
Corrective Actions
Motor over-heating warning.
The drive detects the temperature inside the
motor is too high.
9-12
Description
Description
<Go to List of Warning Codes>