Delta AS Series Programming Manual page 801

AS Ser ies Pro gra mm in g M anu al
Programming Example 1: Incremental encoder
The motor speed can be monitored by executing DHCMEAS instruction as the following procedure shown. The
resolution of the encoder in this example is set to 1000 PPR.
1. Set the input interface of the channel 1 to pulse input or SSI input in HWCONFIG. And set the counter type to ring
counter.
2. Set the value in Cnt/Rev to 1000, the value in Smpl to 1000 and the value in Avg to 10.
3. When M0 switches to ON, the counter would start to count and configure DHCMEAS parameters in module's
settings at the same time for measuring frequencies and speed, which the results would be updated in the display of
Freq and RPM every 1000ms.
4. While the motor is running and the encoder receives pulses of 5kHz, the results would be displayed as 5kHz fin Freq
and 300 rev/min in RPM. In this example, the encoder speed is the motor speed, so the motor here would be 300
rev/min.
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Motor
Encoder