MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第129页
4. Spindle Adjustment 4 - 38 (9) Adjusting deceleration time When the deceleration time "td" is si gnificantly different from the accele ration time "ta" (td < 0.95 × ta, 1.1 × 1a < td) and no p…
4. Spindle Adjustment
4 - 37
(8) Adjusting excitation rate
If the motor noise is excessive during constant-speed operation, adjust the value of the parameter
SP056(PYVR) downward in decrements of 10 from the standard setting of 50 (setting lower limit =
25). The setting of the parameter SP033(SFNC1)/bit9 is an effective way to reduce noise or
improve the temperature rise of the motor for high-speed operation (it lowers the excitation rate
also for high-speed operation).
No. Abbr. Parameter name Details
Setting
range
Standard
SP056 PYVR Variable excitation
(min value)
Set the minimum value of the variable excitation rate.
Select a smaller value when gear noise is too high.
Larger value is more effective on impact response.
0 to 100
(%)
50
<For MDS-C1-SP/SPH/SPX/SPHX>
F EDCBA98765 4 3 2 10
poff hzs ront pycal pychg pyst pyoff sftk dflt 1a2m
bit Meaning when set to 0 Meaning when set to 1
Standard
9 pycal
(Conventional specifications) High-speed rate deceleration
method valid for minimum
excitation rate
0
SP033 SFNC1* Spindle function 1
4. Spindle Adjustment
4 - 38
(9) Adjusting deceleration time
When the deceleration time "td" is significantly different from the acceleration time "ta" (td < 0.95 × ta,
1.1 × 1a < td) and no problem with the a cceleration time, adjust the deceleration time by cha nging
the setting of the parameter SP087(DIQM). In cases, however, where the variable torque
characteristic cannot be lowered to the SP087 le vel, adjust by changing the setting of the parameter
SP088(DIQN).
No. Abbr. Parameter name
Details
Setting
range
Standard
SP087 DIQM* Target value of
variable torque limit
magnification at
deceleration
Set the minimum value of variable torque limit at deceleration. 0 to 150
(%)
75
Set the speed where the torque limit value at deceleration
starts to change.
Torque limit
Inversely proportional to
speed
SP088 DIQN*
Speed for starting
change of variable
torque limit
magnification at
deceleration
100%
SP087
SP088 SP017 Speed
0 to 32767
(r/min)
3000
Adjusting SP087, SP088
td > 1.1 × ta?
SP087, SP088 adjustment completed
Increase SP087 by +5.
YES
NO
Measure acceleration/deceleration
waveform at high speed
td < 0.95 × ta?
Increase SP087 by –5.
YES
NO
SP087<100 × – ?
SP088
SP017
Increase SP088 by –500.
YES
NO
4. Spindle Adjustment
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4-3-3 Adjusting the orientation control
(1) Necessary input/output
1) Input:
[1] Orientation start command (ORC)
Connect to any one of the general-purpose inputs
[2] Multi-point orientation positioning data (R1 to R12)
Connect when changing to an arbitrary stop position from outside during encoder
orientation or motor PLG orientation
2) Output: Orientation complete (ORCA)
Connect to any one of the general-purpose outputs
(2) Operation sequence
Motor speed
Gear selection command
12-bit multi-point orientation command
Orientation start command
Orientation complete output
1) The 12-bit multi-point orientation command (R1 to R12) is read at the rising edge of the
orientation start command (ORC) and must be changed before turning the orientation start
command ON.
2) The gear selection com mand (GR1, GR2) will be valid at all times eve n after the orientation start
command has been turned ON. Change the gear selection command before turning the
orientation start command ON and keep it ON until the orientation start command is turned
OFF.