Chapter 6 Control Mode of Operation ASDA-A2R Series
Revision December, 2014
6-39
6.6.3 Analog Monitor
Users could observe the needed voltage signal via analog monitor. Two analog channels
are provided by the servo drive and locate in terminal 15 and 16 of CN1.
Related parameter: Please refer to Chapter 8 for further information.
Parameter Abbr. Function
P0-03 MON Analog Output Monitor
P1-03 AOUT Polarity Setting of Encoder Pulse Output
P1-04 MON1 MON1Analog Monitor Output Proportion
P1-05 MON2 MON2 Analog Monitor Output Proportion
P4-20 DOF1
Offset Adjustment Value of Analog Monitor
Output (Ch1)
P4-21 DOF2
Offset Adjustment Value of Analog Monitor
Output (Ch2)
For example, when users desire to observe the voltage signal of channel 1, if the monitor
output voltage is 8 V per 2.25 M, then the setting value of P1-04 should be changed to 50
(= 2.25 M/max. input frequency). Other related setting includes P0-03 (X = 3), P1-03
(Polarity Setting of Encoder Pulse Output , range from 0 to 3, to setup positive / negative
output); In general, when the output voltage value of Ch1 is V1, the pulse command
frequency is equal to (Max. input frequency × V
1
/8) × P1-04/100.
Since there is an offset value of analog monitor output voltage, the zero voltage level of
analog monitor output does not match to the zero point of setting value. It is
recommended to use Offset Adjustment Value of Analog Monitor Output, DOF1 (P4-20
and DOF2 (P4-21) to improve it. The max. output voltage is ±8V, if the voltage exceeds
the range, it will be limited within the range of ±8V. The revolution of ASDA-A2R is 10bits,
which approximates to 13mV/LSB.
8V
DOF
-8V
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