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178
System Parameters
Section 3-3
Encoder Polarity
This parameter specifies whether the motor will turn forward or reverse when
the feedback pulses from the encoder increase. The default setting is “forward
on increase.”
Pulse Rate
This parameter determines the amount that the workpiece is moved per feed-
back pulse.
The pulse rate is given by the following equation if Y feedback pulses are out-
put from the encoder when the servo motor moves the work X mm.
The pulse rates are set independently for the X and Y axes. Each can be set
from 1 to 100,000. The default setting is 1. Set the X and Y pulse rates so that
the X/Y ratio doesn’t exceed 1.
The input ranges for the following parameters will change when the pulse rate
setting is changed.
Maximum Number of
Motor Revolutions
This parameter sets the number of times that the servomotor will revolve in
one minute at a speed reference voltage of 10 V. The setting range is 1 to
32,767, the default setting is 3,000 r/min and the maximum number of motor
revolutions set with this parameter corresponds to the 10 [V] speed reference
voltage output from the MC Unit. Make sure the maximum number of motor
revolutions setting satisfies the following conditions.
Upper maximum motor revolution limit [r/min] =
500 [kp/s] x 60
÷
encoder resolution [p/r]
If the number of revolutions does not satisfy the preceding conditions, reduce
the resolution from parameters at the servo driver or reduce the maximum
number of motor revolutions.
Positive (+) and Negative
(–) Software Limits
These parameters set the positive and negative limits monitored by the soft-
ware. The unit is the unit set for the display unit parameter within a range
determined by the minimum setting unit parameter. The default range is
1/100,000
≤
X/Y (pulse rate)
≤
1
Menu
Parameter
Machine Parameter Edit
Software limits
Coordinate Parameter Edit
Coordinate system origin offsets
Feed Rate Parameter Edit
All feed rates
Zone Parameter Edit
Zone settings
X mm
Servomotor
Feedback pulses
Y (pulses)
Voltage
command
Work
With an encoder ratio of 4
MC421
Pulse rate =
X (mm)
Y (pulses)
×
4
Servo Driver
Содержание CS1W-MC221 -
Страница 1: ...Motion Control Units Cat No W359 E1 04 CS1W MC221 V1 421 V1 OPERATION MANUAL ...
Страница 2: ...CS1W MC221 V1 421 V1 Motion Control Units Operation Manual Revised February 2008 ...
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Страница 27: ...xxviii Conformance to EC Directives 6 ...
Страница 133: ...106 Installation Section 2 2 2 2 4 Dimensions CS1W MC421 CS1W MC221 ...
Страница 173: ...146 Connecting Peripheral Devices Section 2 7 ...
Страница 227: ...200 Command Area Section 3 6 ...
Страница 351: ...324 Interface Specifics Section 5 4 ...
Страница 513: ...486 Absolute Encoder Interface Specifications Section 9 7 ...
Страница 575: ...548 Error Log Section 12 6 ...
Страница 589: ...562 Performance Appendix A ...
Страница 655: ...628 Control Bit Flag Timing Charts Appendix E ...
Страница 683: ...656 Origin Search Patterns Appendix F ...
Страница 685: ...658 Encoder Divider Rate and Rotation Speed for OMRON Servo Drivers Appendix G ...