6
Motion Parameters
6.5.5
Speed Reference
6-64
( 1 ) Speed Reference (OL

10) Setting Examples
• No. 5: Number of digits below decimal point = 3
• No. 34: Rated speed = 3000 R/min
• No. 36 = Number of pulses per rotation = 65536
The following table shows examples of settings for Speed Reference (OL

10) to obtain the target
feed speed (reference speed).
( 2 ) Speed Override (OW

18) Setting Example
The Speed Override parameter (OW

18) can set the speed as a percentage (output ratio) of the
target feed speed, in 0.001% units. Speed Override is set independently of Command Unit, Number
of Decimal Places, and other parameters.

Speed Override cannot be set for SVR (Virtual Motion Module).
A typical example of a Speed Override setting is shown below.
　
Setting Example
Output ratio 25%: 25
÷
0.01 = 2500
　　　　　
50%: 50
÷
0.01 = 5000
　　　　　
75%: 75
÷
0.01 = 7500
100%: 100
÷
0.01 = 10000
Speed Unit Setting
Command Unit
Setting
Reference Speed
Speed Reference Parameter Settings (OL

10)
Method
0
Reference unit/s
pulse
• 500 R/s
500 (R/s)
×
65536 (pulse/R)
= 37268000 (pulse/s)
• 1500 R/min
1500 (R/min)
×
65536 (pulse/R)
÷
60 (s/min)
= 1638400 (pulse/s)
mm
• Feed speed of 500 mm/s
with a machine that travels
10 mm for each rotation
500 (mm/s)
÷
0.001
= 500000 (mm/s)
• Determined by feed speed and number of digits below
decimal point (0.001 in the above equation),
regardless of machine configuration.
• Feed speed of 900 mm/min
with a machine that travels
10 mm for each rotation
900 (mm/min)
÷
0.001
÷
60 (s/min)
= 15000 (mm/s)
* Determined by feed speed and number of digits below
decimal point (0.001 in the above equation), regardless
of machine configuration.
1
10
n
reference units/
min
(n: Number of digits
below decimal point)
（
= 3
）
pulse
• 500 R/s
500 (R/s)
×
65536 (pulse/R)
÷
1000*
×
60 (s/min)
= 1966080 (1000 pulse/min)
• "1000" = 10
n
• 1500 R/min
1500 (R/min)
×
65536 (pulse/R)
÷
1000*
= 98304 (1000 pulse/min)
• "1000"= 10
n
mm
• Feed speed of 500 mm/s
with a machine that travels
10 mm for each rotation
500 (mm/s)
÷
0.001
×
1000
×
60 (s/min)
= 30000 (1000 mm/s)
• Determined by feed speed and number of digits below
decimal point (0.001 in the above equation),
regardless of machine configuration.
• Feed speed of 900 mm/min
with a machine that travels
10 mm for each rotation
900 (mm/min)
÷
0.001
×
1000
= 900 (1000 mm/min)
• Determined by feed speed, regardless of machine
configuration.
2
0.01%
−
• 1500 R/min
1500 (R/min)
÷
3000 (R/min)
×
100(%)
÷
0.01
= 5000 (0.01%)
• Determined by what percentage the feed speed is of
the rated speed.
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