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IMPORTANT
5.7.5 Absolute Encoder Reception Sequence
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5. When "PGCL5" is displayed, press the MODE/SET Key. The display will change as fol-
lows, and the absolute encoder's multi-turn data will be cleared.
6. Press the DATA/SHIFT Key to return to the auxiliary function mode.
This completes the absolute encoder's setup operation. Turn the power OFF and then back ON
again.
If the following absolute encoder alarms are displayed, the alarms must be cleared using the method described
above for the setup operation. They cannot be cleared by the Servopack's alarm reset (/ARM-RST) input signal.
S Encoder backup alarm (A.81)
S Encoder sum check alarm (A.82)
In addition, if a monitoring alarm is generated in the encoder, the alarm must be cleared by turning OFF the
power.
The sequence in which the Servopack receives outputs from the absolute encoder and transmits
them to the host device is shown below.
Be sure you understand this section when designing the host device.
J J Outline of Absolute Signals
The absolute encoder's outputs are PAO, PBO, PCO, and PSO signals as shown below.
Servopack
PS
Serial data®
PG
pulse conversion
Data® data
conversion
Signal Name
PAO
PBO
PCO
PSO
Flashes for
1 second.
Dividing
circuit
(Pn201)
Status
Initial state
Normal state
Initial state
Normal state
Normal state
Normal state
5 -97
5.7 Absolute Encoders
PAO
PBO
PCO
PSO
Signal Contents
Serial data
Initial incremental pulse
Incremental pulse
Initial incremental pulse
Incremental pulse
Origin pulse
Rotation count serial data
5
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