MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第119页
4. Spindle Adjustment 4 - 28 (3) Adjusting the motor (spindle) rotation speed (a) When using analog input for the s peed command 1) When using bipolar input (SE1-SE2 input) for the speed comm and [1] Confirm if "0&q…
4. Spindle Adjustment
4 - 27
4-3 Adjustment procedures for each control
4-3-1 Basic adjustments
(1) Items to check during trial operation
[1] Directly couple the motor and machine, and check the control status during m achine run-in.
[2] Check that the command speed and actual speed match.
If the speeds do not match, check spindle parameters again.
(Especially check SP017, SP034, SP040 and SP257 to SP384.)
[3] Is the rotation smooth?
[4] Is there any abnormal noise?
[5] Are there any abnormal odors?
[6] Has the bearing temperatu re risen abnormally?
(2) Adjusting the speed meter/load meter
The speed meter/load meter is adjusted when using the display measurement output.
[1] Set "1" in the parameter SP177(MADJ).
[2] Change value in the parameter SP178(SMG) and adjust so that the speed meter displays the
maximum speed.
[3] Change value in the parameter SP179(LMG) and adjust so that the load meter displays the full
scale.
[4] Return the parameter SP177(MADJ) to "0" when the adjustment is completed. Failure to do this
could result in displaying full scale for both meters at all times.
No. Abbr. Parameter name Details
Setting
range
Standard
SP177 MADJ* Meter full scale
compulsory output
When carrying out a full-scale adjustment to the speed meter
and load meter, set to "1" here so that the full scale voltage is
output and the adjustment mode is entered. Adjustment is
carried out with SP178(SMG) and SP179(LMG) at this time.
Always return the setting value to "0" when the adjustment is
completed.
0 to 1 0
SP178 SMG* Speed meter output
full scale adjustment
Adjust the speed meter full scale.
Adjust so that the fluctuations of the speed meter is at the
intended position when "1" is set in SP177(MADJ).
0 to 1000
(1/1000-fold)
938
SP179 LMG* Load meter output
full scale adjustment
Adjust the load meter full scale.
Adjust so that the fluctuations of the load meter is at the
intended position when "1" is set in SP177(MADJ).
0 to 1000
(1/1000-fold)
938
4. Spindle Adjustment
4 - 28
(3) Adjusting the motor (spindle) rotation speed
(a) When using analog input for the speed command
1) When using bipolar input (SE1-SE2 input) for the speed command
[1] Confirm if "0" is set to the parameter SP155(SAtyp) and SP158(Adofs), and "1053" to
SP161(Sgain).
[2] Start the motor by commanding SO(0 rotation comm and) from NC(PC).
[3] Adjust the value of SP158(Adofs) so that the motor(spindle) almost stops.
The motor (spindle) rotation may not be stopped completely even if SP158(Adofs) is adjusted.
[4] Start the motor by inputting S*** from NC(PC).
At this time, S*** equals to the value "maximum spindle speed×0.95" (Motor speed =
S***×(1/gear ratio))
[5] Adjust SP161(Sgain) so that the motor (spindle) rotation speed becomes the speed set in [4]
above.
S command rot. speed
S command rot. speed x (1/gear ratio)
Motor actual rotation speed
Spindle actual rotation speed
SP161(Sgain)
≒1053 x
or
[6] After following all the setting procedures above, change the S command and confirm if the
rotation speed changes ac cordingly.
2) When using unipolar input (OR1-O R2 input) for the speed command
[1] Confirm if "1" is set to the parameter SP155(SAtyp), "262" to SP158(Adofs), and "1147" to
SP161(Sgain).
[2] Start the motor by commanding SO from NC(PC).
[3] Adjust SP158 so that the motor (spindle) is stopped.
Subtract "1" from the value at which the motor (spindle) starts rotating from a stop state, and
then set that value in SP158(Adofs).
(Example)
SP158(Adofs) = "257" : Motor (spindle) stops
SP158(Adofs) = "258" : Motor (spindle) starts rotating
The setting value of SP158(Adofs) = "257"
[4] Start the motor by inputting S*** from NC(PC).
At this time, S*** equals to the value "maximum spindle speed×0.95" (Motor speed =
S***×(1/gear ratio))
[5] Adjust SP161(Sgain) so that the motor (spindle) rotation speed becomes the speed set in [4]
above.
S command rot. speed
S command rot. speed x (1/gear ratio)
Motor actual rotation speed
Spindle actual rotation speed
SP161(Sgain)
≒1147 x
or
[6] After following all the setting procedures above, change the S command and confirm if the
rotation speed changes ac cordingly.
4. Spindle Adjustment
4 - 29
No. Abbr. Parameter name Details
Setting
range
Standard
SP155 SAtyp S analog speed
command input type
Select where to input the S analog input.
[0]: Input between SE1(CN8A-7 pin) and SE2(CN8A-8 pin)
(Standard)
(Bipolar input: Possible to input 0 to ±10V)
[1]: Input between OR2(CN8A-17 pin) and SE1(CN8A-18 pin)
(Unipolar input: Possible to input 0 to +10V only)
Note that when "1" is set, the over writing function cannot be
used.
0 to 1 0
SP158 Adofs* S analog speed
command input
offset
Set the offset value of the S analog speed command input. Set
the value so that the spindle almost stops when the input
command is "0".
Note that the rotation of the spindle motor may not be stopped
in full with this setting.
This value fluctuates depending on the usage tim e and ambient
temperature.
-999 to 999
When
SP155=0:
0
When
SP155=1:
262
SP161 Sgain* S analog speed
command input gain
Set the S analog speed command input gain. Set so that the
motor runs at the highest speed when the maximum speed
command is input. 0 to 2500
(1/1000-fold)
When
SP155=0:
1053
When
SP155=1:
1147
(b) When using digital speed command input for the speed command
No adjustment required. Confirm the following items.
1) Confirm if the drive unit type is correct. (Is "D" marked at the end of capacity in dication of the drive
unit type?)
2) Confirm if the setting value of the parameter SP156(DGtyp) is correct.
No. Abbr. Parameter name Details
Setting
range
Standard
SP156 DGtyp Digital speed
command input type
Set the digital speed command input method.
"0": Signed binary
"1": No sign 12-bit binary
"2": BCD2 digits
"3": BCD3 digits
0 to 3 0