Instruction manual

5. PARAMETERS
5.2 Detailed Description
5.2.1 Electronic gear
POINT I
The guidehe of the electronic gear setting range is $ c < 50. If the
set value is outside ths range, noise may be generated during
acceleratioddeceleration or operation may not be performed at the preset
meed andor acceleratioddeceleration time constants.
(1 ) Concept of electronic gear
The machme can be moved at any multiplication factor to input pulses.
c
CMX - Parameter No.3
CDV Parameter NO.~
--
Encoder feedback pulse
-
Electronic gear Encoder
Parameters No. 3, 4
The following setting examples are used to explain how to calculate the electronic gear:
(a) For motion in increments of lop per pulse
Machme speclfications
Ballscrew lead Pb =10 [mm]
Reduction ratio: n = 1/2 Servo motor
Servo motor resolution: Pt = 8192 Lpulses/rev]
81 92 [pulse/rev]
CMX Pt Pt 8192 16384 - 2048
CDV AS n.Pb 1/2*10 1000 125
10x103. - =- - - -=Atom -=Aeo. =-
Hence, set 2048 to CMX and 125 to CDV.
(b) Conveyor setting example
For rotation in increments of 0.01" per pulse
Machme specfications
Table resolution: 36000 pulseslrev
Reduction ratio: n = 4/64
Servo motor resolution: Pt = 8192 Lpulses/rev]
CMX
Pt - Pt
131072
4096
CDV AS 36000x4/64 36000
1125
-= --
=-=-
Servo motor
8192 [pulse/rev]
-
w
Table
Timing belt : 4/64
Reduce CDV to 32767 or less and round off the result to the units.
Hence, set 4096 to CMX and 1125 to CDV.
5- 18