
B-65150E/04 4. SERVO FUNCTION DETAILS
− 105 −
(2) Series and editions of applicable servo software
• Velocity loop control method supported by PI only
Series 9066/B(01) and subsequent editions (Series 20, 21, Power
Mate)
Series 9070/G(07) and subsequent editions (Series 15-B, 16-B,
18-B)
• Velocity loop control method supported by both PI and I-P
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)
(3) Setting parameters
Series 15, 16, 18
#7 #6 #5 #4 #3 #2 #1 #0
1959
−
PK25
2017
−
PK25 (#7) 1: The velocity loop high cycle management function is used.
(4) Performance comparison with the 250-µs acceleration feedback function
250-µs acceleration feedback
function
Velocity loop high cycle
management function
Control
method
Acceleration fed back
every 250 µs
Only proportional
calculated every 250 µs
Adjustment
method
Set a value of −10 to −20. Set the function bit.
Effect This function may prove more
effective than the Velocity loop
high cycle management
function, depending on the
machine system resonance
frequency and intensity.
In general, this function is more
effective than the 250-µs
acceleration feedback function in
improving the velocity loop gain.
PK1V/S
+
−
Calculated in each
current loop control
cycle
+
+
+
−
PK2V
Calculated in each
velocity loop control
cycle
Proportional
calculation
TCMDVCMD
Configuration of the control system (for PI control)