Delta Electronics ASDA-A2 Series User Manual page 311

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Chapter 8 Servo Parameters
P1 - 45 ▲ GR2
Default: 10
Applicable Control Mode: PT, PR
Unit: pulse
Range: 1 ~ (2
Data Size: 32-bit
Display Format: Decimal
Settings:
This parameter is used to set the denominator of the electronic gear ratio. The
numerator of the electronic gear ratio is set by P1-44. P2-60 ~ P2-62 are used to set the
additional numberators.
As the wrong setting may 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 setting (Please also see P1-44, P2-60 ~ P2-62):
Pulse input
The electronic gear ratio setting range must be within: 1/50<N/M<25600.
Please note:
1. In PT and PR mode, the setting value of P1-45 can not be changed when the servo
P1 - 46 ▲ GR3
Default: 2500
Applicable Control Mode: ALL
Unit: pulse
Range: 20 ~ 320000
Data Size: 32-bit
Display Format: Decimal
Settings:
This parameter is used to set the pulse numbers of encoder outputs per motor
revolution.
Please note:
When the following conditions occur, the output frequency for pulse output may exceed
the specification and cause that the servo drive fault AL018 (Encoder Output Error) is
activated.
8-66
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Electronic Gear Ratio (Denominator) (M)
-1)
31
Position
N
command
M
f1
f2 = f1 x
drive is enabled (Servo On).
Encoder Output Pulse Number
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f1: Pulse input
N: Numerator, the setting value of P1-44 or P2-60 ~
N
M P2-62
M: Denominator, the setting value of P1-45
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Address: 015AH, 015BH
Related Section:
Section 6.3.6
f2: Position command
Address: 015CH, 015DH
Related Section: N/A
Revision January 2011
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