LXM28, Simple Speed Control Via Serial Modbus

[KB1]

Hi,

I am using LXM28 with a motor (BCH2). I would like to control the speed of the motor via Modbus, just do simple steps.

I have several issues for the setup:

1/ I can modify P3-06 and P4-07 with the keypad, but they are not permanent.

When I turned off and then turn on the drive, the settings go back to 0 for those parameters.

I used those parameters to be able to force the DI1-5: SON, TQL, SPD0, SPD1, Reset Fault.

Is there a way to make those settings (P3-06 and P4-07) can be saved in eeprom?

2/ With SoMove, I can see the right values of parameters P3.06 and P4.07 only if I turn the flag Exclusive ON.

Can I set the Exclusive flag on via Modbus? (Is the same as Access Lock register?)

3/ Using SOMove, I can't manage to rotate the motor. I thought by turning on SON bit I would start, the motor,

Is there a flag that needs to be turned ON?

SON is on.

SReady is ON

SPD0=1, SPD1=0

P1.09 = 1000

There is no error.

4/ What is the Modbus register to monitor the operating state?

Thank you for you support

Best,

KB

[Godnogod · Accepted solution]

For Modbus control of LXM26/28, activate permission first by P10-32(0xB40), then enable via P2-30=1(0x33C), reset fault with P0-01=0(0x102). For jog operations: P10-25(0xB32)=1(JOG+) or P10-25=2(JOG-); P4-05(0x50A)( JOG Velocity)