6-19
PRM
No.
Setting
Setting
range
Unit
Factory
setting
Parameter name
Cn-1F
No. 1 internal speed setting
100
r/min
0 to 4,500
Cn-20
No. 2 internal speed setting
200
r/min
0 to 4,500
Cn-21
No. 3 internal speed setting
300
r/min
0 to 4,500
Cn-23
Soft start deceleration time
0
ms
0 to 10,000
Cn-24
Electronic gear ratio G1 (numerator)
(see note 2)
4
---
1 to 65,535
Cn-25
Electronic gear ratio G2 (denominator)
(see note 2)
1
---
1 to 65,535
Cn-26
Position command acceleration/decel-
eration time constant
0
×
0.1 ms
0 to 640
Cn-27
Feed-forward command filter
0
×
0.1 ms
0 to 640
Cn-28
Compensating gain
(HA/LA/V/W Models)
0
---
0 to 100
Cn-29
Unit number setting
(HA/LA/V/W Models) (See note 4)
0
---
0 to 14
Note 1. Cn-04 (speed loop gain) is factory-set for three times the load inertia. Therefore, if the load
inertia is extremely small, some oscillation may occur. If it does, then lower Cn-04 to 20 or
less.
Note 2. After the settings for Cn-11 (number of encoder pulses), Cn-24 (Electronic gear ratio G1 (nu-
merator)), and Cn-25 (Electronic gear ratio G2 (denominator)) have been made, they become
effective when the power is turned on again after having been cut off. (Check to see that the
LED display has gone off.)
Note 3. Set Cn-11 (number of encoder pulses) according to the number of pulses (resolution) of the
encoder. The parameter must be set to 2,048 for an incremental encoder.
Note 4. Refer to the
Computer Monitor Software Instruction Manual (I513) for OMNUC U-series
Servo Drivers for more details on Cn-29 (unit number setting).
Supplementary Materials
Chapter 6
