Do these boards run at mains voltage? If I want to scope the board, do I need to use an isolated or battery scope?

I once had a potters wheel that had a fault and all the digital stuff was floating at mains voltage, so you had to be really carefull with it!

 

For the main motor control board, Most TM;s are none isolated from the mains input, many employ a LV transformer supply for the console display etc.

 

For the main motor control board, Most TM;s are none isolated from the mains input, many employ a LV transformer supply for the console display etc.

This one is an Icon MC5100. I guess its similar to the MC2100. So if I want to probe it with a scope, I need to ensure there's no mains earth to scope ground connection?

 

Then you would need to supply the 'scope or the board with an isolated supply with no earth GND reference.
Measure to make sure before attaching probes.

 

Then you would need to supply the 'scope or the board with an isolated supply with no earth GND reference.
Measure to make sure before attaching probes.

OK, thought so! Thanks for the help!

I'm going to see if there is a PWM signal from the console to the motor controller and then if there is a PWM from the Controller micro to the Mosfet.

I'll test the motor on a DC bench suply too. I guess a 30v 10A DC supply will be sufficient to check the motor, or do I need to make a 130v DC supply from a Variac and a rectifier?

 

OK, thought so! Thanks for the help!

I'm going to see if there is a PWM signal from the console to the motor controller and then if there is a PWM from the Controller micro to the Mosfet.

I'll test the motor on a DC bench suply too. I guess a 30v 10A DC supply will be sufficient to check the motor, or do I need to make a 130v DC supply from a Variac and a rectifier?

Motor runs fine on 12v DC at about 2A.

 

Motor runs fine on 12v DC at about 2A.

Should be OK, a automotive battery source is good for a simple check.

 

Should be OK, a automotive battery source is good for a simple check.

I mean, the motor ran fine on a DC bench supply. The motor only used 2a at 12v.

Still just getting fast double flash on the controller LED.

I've seen the pwm signal coming from the console but the motor is still not moving.

No signs of any burnt or overheated components.

I guess there is some fault in the controller somewhere.

 

If you are getting a signal into the HD2 pin 4 on the MC2100's. Then it sounds like a problem on the motor board, It is easiest to have a small PWM controller you can plug into the HD2 and then test the motor board on the bench.

 

If you are getting a signal into the HD2 pin 4 on the MC2100's. Then it sounds like a problem on the motor board, It is easiest to have a small PWM controller you can plug into the HD2 and then test the motor board on the bench.

Yes the signal is there, but the LED on the controller starts doing the double flash the moment you power up, so it's gone into fault condition immediately. Something is failing the power up selftest...

 

It is quite possible that the circuitry is very similar to the MC2100, it might be worth looking at the schematic and comparing it to the MC5100

 

It is quite possible that the circuitry is very similar to the MC2100, it might be worth looking at the schematic and comparing it to the MC5100

Its similar, but not the same.

It has a MOSFET and IGBT.

Here's some of the main components:

S8025L thyristor Q1
IRFP31N50L MOSFET Q6
IRGP4063D IGBT Q5
CY8C27443 processor U7
MCP6021 op-amp U19
LNK305DN power integrator U13
MOC3052 Triac driver U1
23NM60ND MOSFET Q4
IRS21844 MOSFET driver U8

 

Don't suppose anyone has a schematic for the brake circuit on the Icon MC5100 controller?

I found it behaves differently if I take the brake resistor off. The controller doesn't go into immediate fault condition. It basically works up until there is a speed demand and then it goes to a fault mode with 6 flashes. With the brake resistor attached the controller never gets out of power up test.

 

Es similar, pero no es lo mismo.

Tiene MOSFET e IGBT.

Estos son algunos de los componentes principales:

S8025L tiristor Q1
IRFP31N50L MOSFET Q6
IRGP4063D IGBT Q5
CY8C27443 procesador U7
amplificador operacional MCP6021 U19
LNK305DN integrador de potencia U13
Controlador triac MOC3052 U1
23NM60ND MOSFET Q4
Controlador MOSFET IRS21844 U8
[/COTIZAR]
Saludos tienes la lista de componentes pero de la mc2100 lt porque si veo que cambian