Establishing The Absolute Origin Position; Establishing The Absolute Origin Position With Di/Do - Delta ASDA-A3 Series User Manual

ASDA-A3

10.3.4 Establishing the absolute origin position

When the absolute position is lost, the ASDA-A3 servo drive provides three methods to
establish the absolute origin position: DI/DO, parameter setting, or the PR homing function. The
following provides more details for each method.

10.3.4.1 Establishing the absolute origin position with DI/DO

When the servo system is controlled by the controller, establish the absolute origin position with
DI/DO. Once the absolute position is established, the pulse number is reset to 0 and the PUU
number is reset to the value of P6.001. Refer to the following diagram for detailed descriptions.
Description:
1. When the controller triggers DI.ABSE, it has to wait for T
step.
2. After reaching T
When DI.ABSC is triggered and remains on for T
PUU number is reset to the value of P6.001.
DI.ABSE
DI.ABSC
Absolute
position counter
(Pulse = 0; PUU = P6.001)
Figure 10.3.4.1.1 Timing diagram for establishing the absolute origin position with DI/DO
The following table describes the T
switched to On.
, the controller starts to establish the absolute origin position.
S
On
Off
On
Off
and T
S Q
Min
Max
before proceeding to the next
S
, the pulse number is reset to 0 and the
Q
T
S
delay time after DI.ABSE and DI.ABSC are
T (ms) T (ms)
S Q
P2.009 + 2
P2.009 + 10
Absolute System
T
Q
10
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