Delta ASDA-A2 Series User Manual page 369

Chapter 8 Servo Parameters
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
drive is enabled (Servo On).
P1-46▲ GR3
Operation
Interface:
Default: 2500
Control
Range: 20 ~ 320000
Data Size: 32-bit
Display
Format:
Settings:
This parameter is used to set the pulse numbers of encoder outputs per motor
revolution.
Setting range: 20 ~ 320000
The maximum frequency output of the hardware is 19.8 MHz.
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.
Condition 1: Encoder error.
Condition 2: Motor speed is above the value set by parameter P1-76.
Condition 3:
8-92
Position
N
command
M
f1
f2 = f1 x
Encoder Output Pulse Number
Keypad/Software
ALL
Mode:
Unit: pulse
Decimal
Motor Speed

P
60
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
Communication
   
6
1 46 4 19.8 10
ASDA-
f2: Position command
Address: 015CH
015DH
Related Section: N/A
Revision September 2012
A2