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5.3.5 Electronic Gears
It is necessary to adjust the electric gear to convert from the command pulses sent from position unit to the travel
amount of electrical actuator.
See
“LECSA Operation Manual (Simplified Edition)”, section 5.3.4 for the recommended values for electronic
gears for each actuator model.
Please configure the electronic gear values according to the customer application.
(1) LECSA Parameter Configuration: [PA05], [PA06] and [PA07]
Parameter
Initial
value
Setting range
Unit
Control mode
No.
Symbol
Name
Position
Internal
speed
Internal
torque
Positioning
PA05
*FBP
Number of command input pulses per revolution
100
0
100 to
500
100
pulse/rev
PA06
CMX
Electronic gear numerator
(Command pulse multiplying factor numerator)
1
1 to 65535
PA07
CDV
Electronic gear denominator
(Command pulse multiplying factor denominator)
1
1 to 65535
(1) Complete configuration as shown below.
Ex.)
Travel amount per 1 command pulse (P
=10μm)
Actuator lead (L = 6mm)
Pulley ratio (n1/n2 = 1/1)
[PA05] = 100 (Initial value)
[PA06] 100×100×10× 100×100×0.01
= =
[PA07] 6× 1/1 6
[PA06] 100
=
[PA07] 6
*1 In case position control mode, "Travel amount per 1 command pulse"P = 10[um]
In case positioning mode, "Travel amount per 1 command pulse"P = 1[um]
*2 For pulley ratio, refer to Lead of
“LECSA Operation Manual (Simplified Edition)”, section 5.3.4.
The actuator not described for pulley ratio is calculated by
“1/1”.
・
[PA05] = 100 (Initial value)
The initial value of 100 corresponds to the "Nomber of command input pulses per revolution" of 10000 [pulses/rev].
・
[PA06]
[PA05]×100×P×
=
・
[PA07]
「
Actuator lead
L[mm]
」
×
n1/n2
P: Travel amount per 1 command pulse
[μm] *1
n1/n2: Pulley ratio *2
1000
1
1000
1