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Question #: 13887

Question: what does it mean when my spindle VFD inverter shows OC-2?

Current Solution

Remember, steps to correct and troubleshoot issues with any electrical devices should be done by a professional electrician.

If you have an HY series VFD, the fault codes are below:

OC-1: Over-current during ramp up or over-current at constant speed.
Recommended actions: 1, 2, 3, 4

OC-1: Over-current during ramp up or over-current at constant speed.
Recommended actions: 1, 2, 5, 6

OC-2: Over-current at deceleration or over-current at stop.
Recommended actions: 1, 7, 2, 9, 10

dL: Output short circuit.
Recommended actions: 11, 1, 10

Ou-1 or 2: Over-voltage at stop, over-voltage at acceleration, over-voltage at constant speed or over-voltage at deceleration
Recommended actions: 12, 13

Fb: Fuse break.
Recommended actions: 14, 10

Lu: Low voltage.
Recommended actions: 15, 16, 17

OH: Over heat of inverter.
Recommended actions: 18, 19, 20

OL-1: Inverter overload 150% per minute
Recommended actions: 2, 21, 22

OL-2: Motor overload 150% per minute.
Recommended actions: 21, 23, 24, 25, 26, 21

dT: Motor over-torque
Recommended actions: 21, 23

E.b.S.A or E.b.S.n or E.b.S.d or E.b.S.S: No feedback from the auxiliary coil or the lectromagnetic contactor
Recommended action: 27

bt: Braking transistor damage.
Recommended action: 27

CPu: CPU fault.
Recommended action: 27

E.E.E.S or E.E.E.n or E.E.E.d or E.E.E.A: EEPROM fault
Recommended action: 27


List of recommended actions:
If error shows at ramp up or at constant speed:
1. Check for a short circuit or partial short circuit and the insulation of the output wire is sufficient.
2. Increase the capacity or the inverter if it is too small. Replace with an inverter that has a larger capacity
3. Extend the ramp-up time
4. Decrease the torque and increase the set value.
5. Check if the motor is blocked and if there is a sudden change in load.
6. Check if there is a sudden chance in the power supply voltage.
7. Extend ramp down time
9. DC breaking is too high. Decrease DC breaking
10. Replace the inverter.
11. Check to see if there is a short circuit with the connection wire of the motor.
12. Extend the ramp-down time or add a breaking resistor.
13. Check the mains supply voltage and insure there isn't ant sudden change in voltage.
14. Send the inverter for repair.
15. Check whether the input voltage is normal
16. check whether there is a sudden change in load.
17. Check whether there is any phase missing.
18. Check the fan in the inverter. Is it spinning? Is it blocked? Does it have any foreign matter stuck on the fins of the fan? If so, clear the fan.
19. Check the ambient temperature in the space that the inverter is placed.
20. Check for adequate ventilation for the inverter where it is placed.
21. Check for jamming or any sudden change with respect to mechanical load.
22. Set the V/F curve correctly.
23. The motor is too small.
24. The motor is hot and the insulation of the motor degraded.
25. Check if the voltage has a large variance.
26. Check if there is a phase missing.
27. Contact the supplier

Additional Information:
I have cnc wood carving machine 1325 the inverter showing error 0006

Additional Information:
What is uc3 error

Additional Information:
My inverter read error oc-1 high frequency how you can help me please


Additional Information:
My inverter read error oc-1 high frequency how you can help me please


Additional Information:
203

Additional Information:
E2 error

Additional Information:
Hello , I have an Redsail cnc and I get the following error " UC3 "after that the spindle stops arter a small knocking sound ,would there be an solution to this ?

Additional Information:


Additional Information:
what does it mean when my spindle VFD shows E o and stops.


Additional Information:
Vfd er.01.5c

Additional Information:
CPFO error displayed reason

Additional Information:
Solve it

Additional Information:
My Spindle VFD Holip HLPA01D523C get error E.OC.A after factory reset. and now get error E.OC.n after i change the starting mode from Start from Starting
Frequency to Frequency track start. whats wrong with the vactory setting?

Additional Information:
Er20

Additional Information:
Fault 503

Additional Information:
Fault 503

Additional Information:
What VFD do you have?

Additional Information:
When I on the motor the derave right oc2 it move then it stop again

Additional Information:
When I on the motor the derave right oc2 it move then it stop again

Respond:

Other Possible Solutions to this Question

  • WHAT ELECTRICAL CABLE DO I USE TO CONNECT VFD INVERTER SPINDLE?

    The type of wire that should be used between the spindle and the VFD (Variable Frequency Driver also called the inverter) should be of stranded type and we use between 18 and 16 AWG.

    The total current is divided among the three coil wires, therefor a wire gauge of 16 should be sufficient.

    Currently we use 20AWG 4 conductor.

    Additional Information:

    Click the link to add information to this solution:
    WHAT ELECTRICAL CABLE DO I USE TO CONNECT VFD INVERTER SPINDLE?

  • WHAT ARE THE OUTPUT INVERTER (VFD) CONNECTIONS TO SPINDLE?

    U - Pin1
    V - Pin2
    W - Pin3
    Pin4 Dead

    Additional Information:
    My home made cnc is a big problem with my NC connection. When in start my spindle it will be gone wrong. It will be limith switch problem anytime. Need help thanks.

    Click the link to add information to this solution:
    WHAT ARE THE OUTPUT INVERTER (VFD) CONNECTIONS TO SPINDLE?

  • HOW DO YOU SETUP THE SPINDLE INVERTER VFD?

    Change PD001 Source of Run Commands to '1'
    Change PD005 Max operating frequency to 400hz
    Change PD004 base frequency to 400hz
    Change PD003 Main frequency to 400hz
    Change PD006 Intermediate frequency to 2.5
    Change PD008 max voltage to 220v
    Change PD009 Intermediate voltage to 15v
    Change PD010 Min voltage to 8
    Change PD011 frequency lower limit to >100hz (120hz to start)
    Change PD142 7 Amps
    Change PD143 2
    Change PD144 3000

    Note: PD001 had to be changed back to 0 to allow for keypad control.
    Note2: I had to reverse U and V to get the spindle to go forward in FWD. (reverse any two wires, u&v or w&v for example)

    Click the link to add information to this solution:
    HOW DO YOU SETUP THE SPINDLE INVERTER VFD?

  • How to display RPM instead of frequency on the VFD? I have the 2.2kv 110 volt spindle and inverter.

    There is a button on the front of the VFD that will cycle through RPM, Freq, and a few other readings. If there is a >> button on your VFD, that will work. If there is a mode button on your VFD, that should works as well.

    Additional Information:
    There is a >> disc button but it does not cycle through the display modes.

    Additional Information:
    Is there a parameter setting to make this button work to cycle thru the display modes?

    Additional Information:
    setting the starting rpm

    Additional Information:
    the vfd will not start the motor

    Additional Information:
    Any progress on this? I have the same issue.

    Additional Information:
    What model is your VFD?

    Additional Information:
    Mine is a YL620-G-5.5Kw

    Additional Information:
    That model will not be able to show RPM. You will be able to show the frequency, which can be used to determine the RPM. RPM equals the Frequency x 60.

    Additional Information:
    There is an Icon for RPM at the top of the display I cannot cycle through the different options to see the RPM

    Additional Information:
    At the top of my control panel is has 6 different lights which indicate what your seeing. in order from left to right they are COM, ALM, DISP, RUN, Hz, RPM I have seen the ALM light up on initial set up but that was fixes with a parameter change. The run light shows up when i turn the spindle on and and it is running. I am however not able to get any of the other lights to show or to get the RPMs to display

    Additional Information:
    If you do see an RPM light on the display, that panel sticker may be a sticker used for many types of VFDs and the RPM is not used. There is parameter: P00.24 which allows you to pick what to display. The choices a
    re:
    0: Display current target frequency. This will display your knobs, potentiometer, setting, not the actual spindle frequency.
    1: Display electric machinery run frequency. This will display the actual frequency that the VFD is currently sending to the spindle.
    2: Display electric machinery run current: this will display the current the spindle is currently drawing.
    3: Display input AC voltage. Self explanatory.
    4: Display mother line voltage. This will display the actual voltage at the input.
    5: Display output voltage. This will display the voltage at the UVW terminals for the spindle.
    6: Display speed paragraph number SPx. I believe this displays which frequency is being selected (P07.00 to P07.07, or 1 to 8 respectively).
    7: Display inverter temperature. This is the temp of the VFD, self explanatory.
    8: Display input signal X1-X3/output signal. This simply shows the inputs/outputs associated with the external terminals.
    9: Display user variable. This one I have not delved into, so it may be something to look into.
    10: Display user count value. Same, this one could be useful.
    11: Display temporary debugging variable. Haven't tried this one, so I can't inform of any useful information but it won't pertain to this subject anyway.
    12: Display automatic multisegment run step and time. I haven't delved into this one either, but it won't show RPM.

    Click the link to add information to this solution:
    How to display RPM instead of frequency on the VFD? I have the 2.2kv 110 volt spindle and inverter.

  • what is the warranty period and do you repair these in house? 2.2 kW (kilowatt) Water Cooled Spindle with Inverter (VFD)

    Spindles are generally covered up to 1 year after date of purchase. We do not repair them in house, but we do work with our manufacturer to replace defective units. Generally if you have a defective unit covered under warranty, we will issue a replacement.

    Click the link to add information to this solution:
    what is the warranty period and do you repair these in house? 2.2 kW (kilowatt) Water Cooled Spindle with Inverter (VFD)

  • 2.2 kW (kilowatt) Water Cooled Spindle with Inverter (VFD) Geven Me My contuy Bangladesh

    Spindles are generally covered up to 1 year after date of purchase. We do not repair them in house, but we do work with our manufacturer to replace defective units. Generally if you have a defective unit covered under warranty, we will issue a replacement.

    Click the link to add information to this solution:
    2.2 kW (kilowatt) Water Cooled Spindle with Inverter (VFD) Geven Me My contuy Bangladesh

  • Will your 2.5 KW spindle work with my Hitachi WJ200-022SF VFD and does it have a thermal couple temp output?

    From reading on the Hitachi WJ200-022SF VFD, it seems as it will work just fine with this VFD. However since we have not tried this cross match, I would carefully take each connection and setting into great consideration and detail on both the Hitachi recommendations for setup, as well as our spindles recommended setup.
    Our spindles do not have a thermal couple temperature output.

    Click the link to add information to this solution:
    Will your 2.5 KW spindle work with my Hitachi WJ200-022SF VFD and does it have a thermal couple temp output?

  • When I start my spindle I get a emergency stop in Mach 3. I have run shielded cable and it is grounded at the VFD it is wired per you site instructions. any idea what to check

    You will definitely want to adjust your debounce setting in mach3 if your emergency or limit switch is engaging.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you ever fix this issue? I am having the same problem.

    Additional Information:
    Did you try changing the denounce setting?

    Additional Information:
    Meant to say denounce.

    Click the link to add information to this solution:
    When I start my spindle I get a emergency stop in Mach 3. I have run shielded cable and it is grounded at the VFD it is wired per you site instructions. any idea what to check

  • HOW DO YOU HOOK UP THE SPINDLE TO INVERTER?

    U - Pin1
    V - Pin2
    W - Pin3
    Pin4 Dead

    Additional Information:
    My home made cnc is a big problem with my NC connection. When in start my spindle it will be gone wrong. It will be limith switch problem anytime. Need help thanks.

    Click the link to add information to this solution:
    HOW DO YOU HOOK UP THE SPINDLE TO INVERTER?

  • how much does the 2.2kW spindle and the VFD weigh together?

    The weight of the 2.2kW spindle without the VFD (variable frequency drive or inverter) is 11 lbs or 5 kg.

    The 2.2kW spindle with the VFD is 15 lbs or 6.8 kg.

    Additional Information:

    Click the link to add information to this solution:
    how much does the 2.2kW spindle and the VFD weigh together?

  • What brand is the 2.2 kW spindle? Same for the VFD. Thanks.

    Spindles are generally covered up to 1 year after date of purchase. We do not repair them in house, but we do work with our manufacturer to replace defective units. Generally if you have a defective unit covered under warranty, we will issue a replacement.

    Click the link to add information to this solution:
    What brand is the 2.2 kW spindle? Same for the VFD. Thanks.

  • HOW DO YOU SETUP THE SPINDLE INVERTER?

    Change PD001 Source of Run Commands to '1'
    Change PD005 Max operating frequency to 400hz
    Change PD004 base frequency to 400hz
    Change PD003 Main frequency to 400hz
    Change PD006 Intermediate frequency to 2.5
    Change PD008 max voltage to 220v
    Change PD009 Intermediate voltage to 15v
    Change PD010 Min voltage to 8
    Change PD011 frequency lower limit to >100hz (120hz to start)
    Change PD142 7 Amps
    Change PD143 2
    Change PD144 3000

    Note: PD001 had to be changed back to 0 to allow for keypad control.
    Note2: I had to reverse U and V to get the spindle to go forward in FWD. (reverse any two wires, u&v or w&v for example)

    Click the link to add information to this solution:
    HOW DO YOU SETUP THE SPINDLE INVERTER?

  • What size of wire do you use to connect the VFD to the spindle?

    The type of wire that should be used between the spindle and the VFD (Variable Frequency Driver also called the inverter) should be of stranded type and we use between 18 and 16 AWG.

    The total current is divided among the three coil wires, therefor a wire gauge of 16 should be sufficient.

    Currently we use 20AWG 4 conductor.

    Additional Information:

    Click the link to add information to this solution:
    What size of wire do you use to connect the VFD to the spindle?

  • HOW TO CONNECT THE SPINDLE INVERTER?

    U - Pin1
    V - Pin2
    W - Pin3
    Pin4 Dead

    Additional Information:
    My home made cnc is a big problem with my NC connection. When in start my spindle it will be gone wrong. It will be limith switch problem anytime. Need help thanks.

    Click the link to add information to this solution:
    HOW TO CONNECT THE SPINDLE INVERTER?

  • What wire size to use from VFD to 2.2kW spindle?

    We use 16 AWG wires between the spindle and the VFD. This wire size has a maximum capacity for 22 Amps, a good buffer to eliminate any possibility for overheating. The 2.2kW using 220V may draw up to 10 Amps (220 x 10 = 2200).

    That is, all three wires are sharing the total current draw.

    Additional Information:


    Additional Information:


    Additional Information:
    grounding a spindle


    Additional Information:

    Click the link to add information to this solution:
    What wire size to use from VFD to 2.2kW spindle?

  • Good morning, I would like to know if the strength of the 2.2kw spindle is weaker when using the 110V version of the VFD. Does it have the same power as the 220V version VFD?

    The 2.2kW spindle will have the same amount of torque and strength using either the 110V or the 220V inverter. Nothing will significantly change in either application since the 110V inverter has a small step up transformer which will increase the voltage from 110V to 220V to run the spindle efficiently.

    Additional Information:
    I'd like confirmation on this -- isn't there a cost in efficiency to having the 110v step up to 220v?

    Click the link to add information to this solution:
    Good morning, I would like to know if the strength of the 2.2kw spindle is weaker when using the 110V version of the VFD. Does it have the same power as the 220V version VFD?

  • What length of wire do you recommend for the black toe (2'x4') between the spindle and VFD?

    The length of the cable from the VFD (Variable Frequency Drive) to the actual spindle should be about the same as the z-axis cable from the z-axis motor to the z-axis driver which is recommended at 11 feet. This is locating the VFD about at the midpoint of the machine.

    Click the link to add information to this solution:
    What length of wire do you recommend for the black toe (2'x4') between the spindle and VFD?

  • WHAT TERMINALS ARE USED TO CONNECT THE INVERTER WALL OUTLET?

    Input to VFD:
    240V Active - R
    240V Neutral - S
    Ground - E

    Click the link to add information to this solution:
    WHAT TERMINALS ARE USED TO CONNECT THE INVERTER WALL OUTLET?

  • My VFD/inverter is showing an er.04 er 04 on the display when the spindle starts spinning

    The Er.04 (if you are using the YL VFD), generally refers to the ramping up and ramping down of the spindle, but it can be a result of a short circuit between the VFD and the spindle. You can increase the time the spindle accelerates (ramps up to the set rpm/frequency).

    Click the link to add information to this solution:
    My VFD/inverter is showing an er.04 er 04 on the display when the spindle starts spinning

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