this is the part of the HAL file i'm talking of:
Code:
#*******************
# SPINDLE S
#*******************
setp pid.s.Pgain [SPINDLE_9]P
setp pid.s.Igain [SPINDLE_9]I
setp pid.s.Dgain [SPINDLE_9]D
setp pid.s.bias [SPINDLE_9]BIAS
setp pid.s.FF0 [SPINDLE_9]FF0
setp pid.s.FF1 [SPINDLE_9]FF1
setp pid.s.FF2 [SPINDLE_9]FF2
setp pid.s.deadband [SPINDLE_9]DEADBAND
net ratio_select.out pid.s.maxoutput
setp pid.s.error-previous-target true
net spindle-index-enable <=> pid.s.index-enable
net spindle-enable => pid.s.enable
net spindle-vel-cmd-rpm-abs => pid.s.command
net spindle-vel-fb-rpm-abs => pid.s.feedback
net spindle-pid-out pid.s.output => scale.gear.in
net gear-ratio ratio_select.out-f => scale.gear.gain
setp ratio_select.in00 0.000143
setp ratio_select.in01 0.000143
net gear-select-a => ratio_select.sel0
net spindle-output <= scale.gear.out
as you can see the scale is .000143
3500 x .000143 = .5005 which is actually half speed - so that doesn't jive with the behavior.
So either the 7i76 can not be scaled that low or I am missing something else - which is quite possible.
So if you try without two ranges and let us know if it works properly.
and with two range setting:
can you use halmeter to check what the output of signals:
spindle-vel-cmd-rpm-abs
spindle-pid-out
spindle-output
are when you request a speed of say 1750 or 3500 (no need to have the VFD actually run the motor for that test)
