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Elmark Automatyka S.A.
ul. Niemcewicza 76, 05-075 Warszawa, tel. (+48) 22 773 79 37; [email protected]; www.elmark.com.pl
NIP: 5252072585; KRS: 0000803828, Sąd Rejonowy dla M-St. Warszawy, XIV Wydział Gosp. KRS; Kapitał Zakładowy 525.000 zł, w pełni opłacony
Chapter 5 Fault checking and ruled out
5.1
Fault alarm and countermeasures
ED2000 inverter with a total of 28 warning information and the protection function, once the failure, protection function, inverter
to stop output, inverter fault relay contact action, and in the inverter fault code shown on the display panel. the user can check
himself according to the tips before seeking service, analyze the cause of the problem, find out the solution. If belong to the dotted
line frame stated reason, please seek service, with your purchased inverter agents or direct contact with our company.
21 warning information OUOC is overcurrent or overvoltage signals for hardware, in most cases the hardware overvoltage fault
cause OUOC alarm.
Fault Name
Display of
Panel
Possible Causes
Solutions
Inverter unit protection
OC
1: The output circuit is grounded or short
circuited.
2: The connecting cable of the motor is too
long.
3: The module overheats.
4: The internal connections become loose.
5:The main control board is faulty.
6: The drive board is faulty.
7: The inverter module is faulty
1: Eliminate external faults.
2: Install a reactor or an output filler.
3: Check the air filler and the cooling
fan.
4: Connect all cables Properly.
5,6,7:Looking for technical support
Overcurrent during
acceleration
OC1
1 : The output circuit is grounded or short
circuited.
2: Motor auto-tuning is not Performed.
3: The acceleration time is too Short.
4: Manual torque boost or V/F curve is not
appropriate.
5: The voltage is too low.
6: The startup operation is performed on the
rotating motor.
7: A sudden load is added
During Acceleration.
8: The AC drive model is of too small power
class.
1: Eliminate external faults.
2: Perform the motor
auto-tuning.
3: Increase the acceleration time.
4: Adjust the manual torque boost or
V/F curve.
5: Adjust the voltage to normal range.
6: Select rotational speed tracking
restart or start the motor after it stops.
7: Remove the added load.
8: Select an AC drive of
higher power class.
Overcurrent during
acceleration
OC2
1: The output circuit is grounded or short
circuited.
2: Motor auto-tuning is not performed.
3: The deceleration time is too Short.
4:The voltage is too low.
5: A sudden load is added during Deceleration.
6: The braking unit and braking resistor are not
installed.
1: Eliminate external faults.
2: Perform the motor auto- tuning.
3: Increase the deceleration time.
4: Adjust the voltage to normal range.
5: Remove the added load.
6: Install the braking unit and braking
resistor.
Overcurrent during
acceleration
OC2
1: The output circuit is grounded or short
circuited.
2: Motor auto-tuning is not performed.
3: The deceleration time is too Short.
4:The voltage is too low.
5: A sudden load is added during Deceleration.
6: The braking unit and braking resistor are not
installed.
1: Eliminate external faults.
2: Perform the motor auto- tuning.
3: Increase the deceleration time.
4: Adjust the voltage to normal range.
5: Remove the added load.
6: Install the braking unit and braking
resistor.
Summary of Contents for elmatic ED2000
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