INVOEE inverter system degugging and explanation
INVOEE inverter System debugging (Not mentioned parameters are factory default,and self-study operation of motor parameter is finished.Most factory default parameters can meet the requirements,don’t need adjust.)
Adjustment of spindle rotating speed
Adjust the 2 parameters according to spindle speed of trial operation or CNC rotating speed analog voltage.Firstly modify F00.00,then modify F01.18
Upper limit frequency
Low limit frequency -max frequency
Adjustment of spindle rotating direction
Output rotating direction control
If spindle direction is wrong,this parameter can adjust spindle rotating direction.Use this parameter to avoid hardware wiring adjustment.
Adjustment of spindle acceleration and deceleration
Determined By type
Factory default setting can meet most requirements
Adjustment of spindle rigidity
Speed regulator proportional gain 1
Factory default setting can meet most requirements.Please gradually increase proportional coefficient and decrease integration time.Too big proportional coefficient or too small integration time can cause system instability or even an alarm.
When frequency is below F02.18 setting,
control parameter with F02.16,F02.17.
When frequency is above F02.19 setting,
Control parameter with F02.20,F02.21.
When frequency is between F02.18 and F02.19,obtain the actual control parameters with interpolation.
Speed regulator integration time 1
Speed loop parameter switching frequency 1
Speed loop parameter switching frequency 2
F02.18~Upper limit frequency
Speed regulator proportional gain 2
Speed regulator integration time 2
Adjustment of spindle positioning process speed
Positioning process speed coefficient at rotation
Factory default setting can meet most requirements.The bigger for parameter, the quicker for positioning process.But too big setting can cause VFD alarm.If you need increase it,please gradually adjust and observe spindle positioning process till it meets your need.
Positioning process speed coefficient at stop
Adjustment of spindle positioning locking force
Spindle locking force coefficient
Factory default setting can meet most requirements.the bigger for parameter,
the bigger for spindle force.But too big parameter can cause spindle shaking or even alarm.Only when spindle deviates locked position,VFD will pull it back to locked position.If you need bigger force workpiece processing operation after spindle positioning and keeping spindle static,it need operate according to VFD locking finish signal and matched mechanical locking device.
Setting and operation of spindle fixed position
Positioning indexing 0
8 positioning indexing locking positions
can be preset for VC680/690 spindle servo VFD.The 8 positions are set by F02.28~F02.35.When F02.00(control mode) is set as 2( encoder vector control),and stop status after the initial positioning,positioning indexing position monitored value(Showed PoStn) is the current spindle indexing value.Pull the spindle by hand,record the needed position and set related F02.028~F02.35 parameters.You also can press MFK key,then you can pull the spindle to needed position by hand.Press the MFK key again,the current position value will be saved automatically to selected positioning indexing parameter.
At most 3 multifunction input terminals can be set as position selection terminals
(set by F03 group parameters), 3 input terminals at most have 8 status. Binary code “000” is matched indexing position 0. “111” is matched indexing position 7.
Please see spindle positioning indexing position parameter corresponding table to know detail.
If only 1 piece position selection wire,
the wire matched X terminal can be set as 27 function(carry position selection).Above this signal rising edge,current given indexing position can be selected in turn from 8 position parameters.
Positioning indexing 1
Positioning indexing 2
Positioning indexing 3
Positioning indexing 4
Positioning indexing 5
Positioning indexing 6
Positioning indexing 7
Setting of spindle positioning enable signal
Signal mode of positioning enable terminal
0: Level signal
1: Pulse signal
At level mode(F02.40=0),only input terminals keep continuous valid,VFD can have continuous positioning signal.Once input terminals are invalid,
VFD will exit the positioning process at once,and return normal running status.
At pulse mode(F02.40=1),as long as input terminals send out valid pulse,
VFD will enter into the positioning process at once,and input terminals don’t need continuously keep valid.After input terminals send valid pulse again,VFD will exit the positioning process at once,and return normal running status.
Setting of spindle positioning finished confirmation condition
Error range of positioning finish
VFD will judge whether positioning process is finished and spindle is locked, according to the 2 parameters.
When VFD discover the rest error gap is in setting range of F02.36 and remain after setting time of F02.37,VFD will think positioning is finished,and The signal is output by multifunctional output terminals(set by F04 group parameter).
Confirmation time of positioning finish
Setting of spindle repositioning mode
Rotate direction of repositioning
2:follow the recent rotating direction
In the state of locked spindle,if position command occurs(position selection terminal status is changed or positioning indexing function code is modified),
VFD will reposition spindle according to F02.38 setting mode.
F02.38=0, spindle reposition from the forward direction. F02.38=1,spindle reposition from reverse direction. F02.38=2(factory default),VFD reposition spindle according to recent rotating direction.
Indexing selection terminal shaking/middle state elimination
Position selection terminal confirmation time
Because terminals occur unstable middle state to cause unwanted action,when terminal is in exchanging process.you can set this parameter to avoid it.
Factory default setting can meet most requirements,don’t need change generally.
Indexing selection terminal definition
Running control,positioning enable and division choice terminal definition
13:Forward running command
14:reversed running command
22:speed / position exchanging
24:indexing position choice 0
25:indexing position choice 1
26:indexing position choice 2
27:Position carry selection
Factory default(don’t need change generally)
X0 terminal:forward running command
X1 terminal:reverse running command
X2 terminal:positioning enabled
X3 terminal:speed/position exchanging
X4 terminal:indexing position choice 0
X5 terminal:indexing position choice 1
X6 terminal:indexing position choice 2
Notice:If only 1 piece position selection wire,one terminal can be set 27 function.Above this signal rising edge,current setting positions can be selected in turn from 8 position setting parameters.
Spindle positioning finish indicating signal
Selection of outputs for multifunction open collector Y0
11:speed /position status
18:fixed position is reached
24: Error output
31:Position interpolation is reached
After spindle positioning is finished by VFD,multifunction output terminals with VFD can output positioning finish signal.(set related function as 18)
User can feedback this signal to CNC,or carry out similar mechanical brake with the signal according to actual condition.
Selection of outputs for multifunction open collector Y1
Selection of outputs for multifunction open collector Y2
Selection of outputs for multifunction relays (TA, TB and TC)
Adjustment of position given pulse (VC690 has this function
Direction of position given pulse
Given pulse direction,mode and gear ratio can be adjusted.According to position given pulse mode,Besides modifying F02.42,pulse mode selection jumper on encoder signal distribution box also need be modified.
Mode of position given pulse
Gear ratio numerator
F02.08=2,firstly make spindle in position mode,then system sends 360 degree indexing command.After spindle is positioned and locked cancel ,spindle locking,then VFD can automatically study and revise F02.43 and F02.44.
Gear ratio denominator
Rigid tapping related parameter (VC690 has this function）
Rigid tapping position loop gain
When input terminal of rigid tapping is valid,VFD will exchange position loop and speed loop parameters into the 3 parameters,to strengthen following rigidity of rigid tapping.Rigidity is too big to cause shaking.
Rigid tapping speed loop gain
Rigid tapping speed loop integral time
Adjustment of Position loop following characteristics
(VC690 has this function)
Position loop feedforward control coefficient
Factory default setting can meet most requirements.Position loop following feature can be adjusted with this parameter.The bigger for parameter,the smaller for following error,but easier for position overshooting.