
4. SERVO FUNCTION DETAILS B-65150E/04
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4.2 HRV CONTROL
(1) Overview
HRV control is one of the digital servo current control methods.
Compared with the conventional control methods, HRV control can
reduce a delay that occurs in current control at the time of high-speed
rotation. As the result, HRV control can improve velocity control
characteristics at the time of high-speed rotation.
(2) Series and editions of applicable servo software
HRV control can be used with the following servo software:
Series 9065/A(01) and subsequent editions (Power Mate-E)
Series 9066/A(01) and subsequent editions (Series 20, 21, Power
Mate)
Series 9080/A(01) and subsequent editions (Series 15-B, 16-C,
18-C)
Series 9081/C(03) and subsequent editions (Series 15-B, 16-C,
18-C)
Series 9090/C(03) and subsequent editions (Series 16i, 18i, 21i,
Power Mate i)
Series 90A0/A(01) and subsequent editions (Series 15i, 16i, 18i,
21i, Power Mate i)
With the servo software series listed above, HRV control is exercised
automatically. (No function bit is assigned.)
NOTE
1 For switching from a conventional control method to
HRV control, the user needs to switch to a servo
software series that supports HRV control.
2 The motor-specific standard parameters differ
between HRV control and the conventional control
methods. (For details, see parameter lists in Sec. 6.2
and Sec. 6.3.) When switching from a conventional
control method to HRV control, be sure to initialize the
parameters. (See Sec. 2.1, "Initializing Servo
Parameters.")