MASSO
MASSO Documentation
Test the optocoupler by connecting the +ve of the MASSO power supply through a 5.6K resistor to
EStop2 input
On the F1 screen you should see the input change from LOW to HIGH.
If the input changes from one state to the other the optocoupler is ok and does not need replacing.
Testing procedure for CW & CCW outputs
Testing the CW output
Remove the wires from spindle control terminals 4 & 5
Go to the F1 screen and ensure the CW output is not inverted. If it is remove the invert and
remember to put it back on when you are finished testing.
Go to the F2 screen and set the spindle to off
Use your Digital multimeter set to continuity 2K
Connect one lead of your multimeter to terminal 4 and the other lead to terminal 5 of spindle control
You should read no continuity on your multimeter.
Swap the meter leads around and you should still have no continuity reading on your meter.
If you get a continuity reading in either polarity of your meter the optocoupler is faulty and needs
replacing.
Go to the F2 screen and set the spindle to CW by clicking the Spindle CW button on the screen
You should read 200 ohms or less on your meter
If you get no continuity reading reverse the leads of your meter and retest as this is a polarity
conscious output.
If you still do not get a reading to 200 ohms or less when the spindle is on the optocoupler is faulty
and needs replacing.
Testing the CCW output
Remove the wires from spindle control terminals 6 & 7
Go to the F1 screen and ensure the CCW output is not inverted. If it is remove the invert and
remember to put it back on when you are finished testing.
Go to the F2 screen and set the spindle to off
Use your Digital multimeter set to continuity 2K
Connect one lead of your multimeter to terminal 6 and the other lead to terminal 7 of spindle control
You should read no continuity on your multimeter.
Swap the meter leads around and you should still have no continuity reading on your meter.
If you get a continuity reading in either polarity of your meter the optocoupler is faulty and needs
replacing.
Go to the F2 screen and set the spindle to CCW by clicking the Spindle CCW button on the screen
You should read 200 ohms or less on your meter
If you get no continuity reading reverse the leads of your meter and retest as this is a polarity
conscious output.
If you still do not get a reading to 200 ohms or less when the spindle is on the optocoupler is faulty
and needs replacing.
Replacement Process
v5.18 - 08 Apr,2021
www.masso.com.au Page 379 of 477
To Next Page
Loading...
