3-15
Target pulse count = Command pulse count x G1/G2
•
If G1/G2 = 1, the motor will turn once for every 4,096 command pulses (driver running at a factor of
4X).
•
One pulse for the position deviation (deviation counter) display and positioning completion range will
be equivalent to one input pulse (here the unit is said to be the command).
PRM
No.
Parameter name
Factory
setting
Unit
Setting
range
Explanation
Cn-24
Electronic gear ratio G1
(numerator)
4
---
1 to 65,535
Setting range
1/100
≤
G1/G2
≤
100
Cn-25
Electronic gear ratio G2
(denominator)
1
---
1 to 65,535
1/100
≤
G1/G2
≤
100
Note The factory settings will produce turn the motor once for every 1,024 input pulses.
j
Example
If G1 is set to 4,096 and G2 is set to 1,000, the motor will turn once for every 1,000 input pulses (output as
4,096 pulses). The motor speed will also be 4,096/1,000 times faster.
1,000 pulses
4,096 pulses
Driver
Electronic gear
G1/G2
= 4,096/1,000
Motor
One revolution
(4,096 pulses)
3-5-4 Brake Interlock (For Motors with Brakes)
j
Magnetic Brakes
The magnetic brakes for Servomotors with brakes are specialized holding brakes with non-magnetized
operation. Therefore set the parameters so that the brake power supply is turned off after the Servomo-
tor stops. If the brake is applied while the Servomotor is operating, the brake will suffer abnormal wear or
even damage, and will quickly become defective.
For wiring methods, refer to
2-2-5 Peripheral Device Connection Examples.
j
Function
The output timing of the brake interlock signal (BKIR) that control turning the magnetic brake ON and
OFF can be set.
j
Parameters to be Set
PRM
No.
Parameter name
Factory
setting
Unit
Setting
range
Explanation
Cn-12
Brake timing
0
10 ms
0 to 50
Delay time setting from brake
command until servo turns off.
Operation
Chapter 3
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