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Chapter 7 Servo Parameters|ASDA-B Series
7-36 Revision January, 2009
P1 - 44▲
GR1 Electronic Gear Ratio (1st Numerator) (N1) Communication Addr.: 012CH
Default: 1 Related Section:
Applicable Control Mode: P Section 6.2.4, P1-15, P1-45
Unit: pulse DI GNUM0(11) in Table 7.A
Range: 1 ~ 32767
Settings:
The electronic gear numerator value can be set via external DI signal (refer to Table 7.A).
DI Name DI Status Selected Electronic Gear
Not select (Note 1) P1-44, P1-45
0 P1-44, P1-45
GNUM0
1 P1-44, P1-45
NOTE
1) DI signal can be selected by parameter P2-10 to P2-15 and Table 7.A. If uses only need to
use one group of electronic gear, it allows users not to select GNUM0.
P1 - 45▲
GR2 Electronic Gear Ratio (Denominator) Communication Addr.: 012DH
Default: 1 Related Section:
Applicable Control Mode: P Section 6.2.4, P1-15, P1-44
Unit: pulse DI GNUM0(11) in Table 7.A
Range: 1 ~ 32767
Settings:
Please set electronic gear ratio when the servo drive is Off (Servo Off). As the wrong setting can
cause motor to run chaotically (out of control) and it may lead to personnel injury, therefore,
ensure to observe the following rule when setting P1-44, P1-45.
The electronic gear ratio settings:
f1
f2 = f1 x
N
M
N
M
Pulse input
Position
command
The electronic gear ratio setting range must be within: 1/50<N/M<200.
In terms of the servo drive which the firmware version is V1.018 or above, the electronic gear
ratio can be set when the servo drive is On (Servo On).
f1: Pulse input f2: Position command
N: Numerator, the setting value of P1-15 or P1-44
M: Denominator, the setting value of P1-45