...
| Expand |
|---|
| title | 1100MX, 770MX, 1100M, 770M, 8L CLICK TO EXPAND |
|---|
|
Examine wires 434 and 436 for 24 Vdc on wires J10.1 and J10.3, respectively. Start the spindle and listen for a soft, audible click on the control board. If you hear this click (from a relay contact on the board), the machine control board is functioning properly. If you don't hear the click: Verify that there's 24 Vdc measured from wire 400 to wire 434. Make a jumper wire and, carefully,
momentarily jumper wires 434 and 436. If contactor K2 pulls in (you will hear an audible clunk) while you have the jumper on but drops out as soon as you remove the jumper, review the previous solutions to inspect why the K2 isn’t holding. If K2 stays powered on, the control board is not passing the run signal to the circuit. The control board passes 24 Vdc from wire 434 to 436 via a relay to create the start pulse. Measure wire 434 for 24 Vdc power. If present, the control board or wire 436 connected to J10.3 is defective. Power off the machine, and jumper J10.1 to J10.3 Power on the machine and check the VFD for a display. If the VFD reads rdy, the control board is defective. If not, wire 436 may be broken. Lift the connections of wire 436 at the control board and K2 and measure continuity.
|
| Expand |
|---|
|
Examine wires 420 and 422 for 24 Vdc on wires J10.1 and J10.3, respectively. Start the spindle and listen for a soft, audible click on the control board. If you hear this click (from a relay contact on the board), the machine control board is functioning properly. If you don't hear the click: Verify that there's 24 Vdc measured from wire 421 to wire 422. Make a jumper wire and, carefully,
momentarily jumper wires 422 and 420. If contactor K2 pulls in (you will hear an audible clunk) while you have the jumper on but drops out as soon as you remove the jumper, review the previous solutions to inspect why the K2 isn’t holding. If K2 stays powered on, the control board is not passing the run signal to the circuit. The control board passes 24 Vdc from wire 422 to 420 via a relay to create the start pulse. Measure wire 422 for 24 Vdc power. If present, the control board or wire 420 connected to J10.3 is defective. Power off the machine, and jumper J10.1 to J10.3 Power on the machine and check the VFD for a display. If the VFD reads rdy, the control board is defective. If not, wire 420 may be broken. Lift the connections of wire 420 at the control board and K2 and measure continuity.
|
...
Reason: The VFD is tripped and showing an error.
Trip Code | Condition | Likely Cause |
|---|
boot | Boot from SD card. | Displayed for first 5-6 seconds after power up when booting from SD card. (M200/C200 only) |
UU | DC-BUS under-voltage. | This happens when the VFD is powered down or loses power. |
OU | DC-BUS over-voltage. | Braking resistor failed open or wiring connection open between the VFD and the resistor. Resistance to measure 70 ohms. |
OI.AC | VFD output instantaneous over current. | Phase-to-phase or phase-to-ground short on output of VFD to motor. This trip code cannot be reset until 10 seconds after the trip was initiated. |
OI.br | Braking resistor instantaneous over current. | Braking resistor shorted or partially shorted out or short in wiring between the VFD and the resistor. Resistance to measure 70 ohms. Check brake resistor wiring. |
It.br | I2t (power) on braking resistor. | Excessive braking resistor energy caused by too frequent and too severe deceleration cycles or AC supply voltage too high. |
It.AC
| I2t (power) on VFD output current (used to
protect motor). | Spindle motor is working too hard. Ensure that the spindle is not jammed or sticking. Consider running the spindle motor at half speed for 10 minutes with no load to cool the motor down. |
Oht.C | VFD is working too hard and stops to cool power electronics down to prevent failure. | Spindle motor is working too hard. Stop running the spindle but leave the VFD power on and let the power electronics cool down. |
Oht.I
| Heat sink temperature is too high because the VFD is working too hard and stops to cool power electronics down to prevent failure. Cabinet may also be too hot. | Spindle motor is working too hard or it is too hot in work location. Stop running the spindle but leave the VFD power on and let the power electronics cool
down. Check to see if the fan on the VFD is running and check filters on the cabinet. Cool work location down if required. |
HF01 through HF23 | Hardware fault. | Failed drive. |
Inspect the VFD program
Reason: The wrong program has been loaded or is running on the VFD.
Identify your specific VFD in the table below, and follow the instructions to identify what program it is running.
If the program does not match your machine and machine configuration, contact Tormach Technical Support.
VFD Model | How to inspect the VFD program |
|---|
Commander SK | Push the M button on the front panel of the VFD. The display will change to 01___0.0 with the 01 blinking. Momentarily push the up arrow key to the right of the M key. The 01 should change to 02. Take note of the number to the right of the 02. The VFD should read 170.x, where x designates the VFD program version.
If the VFD does not display this value, it needs to be reprogrammed. Exit by pressing and holding the M button until the display reverts.
|
M200 and C200 | Push Enter on the front panel of the VFD twice. The display changes to 00.000, with the .000 blinking.
Repeatedly push the Up Arrow until .000 changes to .011. Push Enter again. The display shows the model of the mill or accessory (for example, 1100 for an 1100M, or RT11 for a RapidTurn on an 1100M).
Push the Up Arrow once more, and the VFD displays parameter .012, which is the software version number (for example, version 2.01). Push Back to exit this mode.
|