Using masso to control spindle motor via vfd

[minimillaidan]

https://www.masso.com.au/wp-content/uploads/asgarosforum/13662/DBLS-09-manual6842.pdf

I m looking for some help, I have the above motor drive but customised with 0-10v not 0-5v as manual says

i have this 5v 4 channel relay:http://wiki.sunfounder.cc/index.php?title=4_Channel_5V_Relay_Module

i am looking to use this relay to control the motor drive for forward and reverse control via masso. Can anyone advise me on how best to do this?

thanks In advance

 

[zombieengineer]

@minimillaidan

You have a very strange VFD.

The Masso G3 controller does not provide a 5V supply - you may need to connect the relay board using Terminal 1 & 3 of CN2 of the VFD



VFD Drive CN2 wiring

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Terminal 1 - Potentially power supply for relay board (check voltage between Terminal 1 & 3 to confirm)
Terminal 2 - Connect directly to Pin 1 of Masso G3 Spindle control
Terminal 3 - Connect to Masso G3 controller power supply ground, also connect to Relay board J1/Pin 2, J2/Pin2 and J3/Pin2
Terminal 4 - Connect to Relay board J3/Pin 3
Terminal 5 - Connect to Relay board J1/Pin 3 and J2/Pin 3
Terminal 6 - Not connected
Terminal 7 - Not connected
Terminal 8 - Not connected

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Masso G3 Spindle Control wiring

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Terminal 1 - Connect to VFD CN2 Terminal 2
Terminal 2 - Not connected
Terminal 3 - Not connected
Terminal 4 - Connect to Masso G3 controller power supply ground
Terminal 5 - Connect to Relay board IN1
Terminal 6 - Connect to Masso G3 controller power supply ground
Terminal 7 - Connect to Relay board IN2 and IN3 (drives both Relay 2 & Relay 3)

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Theory of operation: The opto outputs can sink several mA, enough to drive multiple relays.

Relay 1 - Activated when motor requested to run CW. This relay when activated shorts VFD CN2 Terminal 5 (RUN) to VFD CN2 Terminal 3 (COM) which starts the motor.

Relay 2 - Activated when motor requested to run CCW. This relay when activated shorts VFD CN2 Terminal 5 (RUN) to VFD CN2 Terminal 3 (COM) which starts the motor.

Relay 3 - Activated when motor requested to run CCW. This relay when activated shorts VFD CN2 Terminal 4 (F/R) to VFD CN2 Terminal 3 (COM) which causes the motor to turn in the opposite direction.

 

[minimillaidan]

Thanks for the fast reply.

So this crude drawing is how i understand your saying to wire?

with regards to spindle setup in masso (Picture attached for reference) how would you set that up?

Thanks once again

Aidan

 

[zombieengineer]

Encoder is used if you have connected the "Masso Optical Encoder"

Spindle control set to VFD looks good.

Just make sure the "Spindle RPM at 10V" matches whatever has been configured for P1.11 in the VFD ("Unit revolutions per minute (RPM) corresponds to the motor speed when the analog input is at maximum.")

My version of a crude wiring diagram below/ attached: